CN107501926B - Water inlet and outlet chamber of automobile radiator - Google Patents
Water inlet and outlet chamber of automobile radiator Download PDFInfo
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- CN107501926B CN107501926B CN201710654034.6A CN201710654034A CN107501926B CN 107501926 B CN107501926 B CN 107501926B CN 201710654034 A CN201710654034 A CN 201710654034A CN 107501926 B CN107501926 B CN 107501926B
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- automobile radiator
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000003365 glass fiber Substances 0.000 claims abstract description 25
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 21
- 244000248349 Citrus limon Species 0.000 claims abstract description 20
- 235000005979 Citrus limon Nutrition 0.000 claims abstract description 20
- 239000010440 gypsum Substances 0.000 claims abstract description 20
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004014 plasticizer Substances 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 8
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 8
- 239000002667 nucleating agent Substances 0.000 claims abstract description 8
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 7
- FWLHAQYOFMQTHQ-UHFFFAOYSA-N 2-N-[8-[[8-(4-aminoanilino)-10-phenylphenazin-10-ium-2-yl]amino]-10-phenylphenazin-10-ium-2-yl]-8-N,10-diphenylphenazin-10-ium-2,8-diamine hydroxy-oxido-dioxochromium Chemical compound O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.Nc1ccc(Nc2ccc3nc4ccc(Nc5ccc6nc7ccc(Nc8ccc9nc%10ccc(Nc%11ccccc%11)cc%10[n+](-c%10ccccc%10)c9c8)cc7[n+](-c7ccccc7)c6c5)cc4[n+](-c4ccccc4)c3c2)cc1 FWLHAQYOFMQTHQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920000767 polyaniline Polymers 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 6
- 238000009210 therapy by ultrasound Methods 0.000 claims description 5
- 239000007822 coupling agent Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 abstract description 18
- 229920005989 resin Polymers 0.000 abstract description 18
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- 239000002131 composite material Substances 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
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- 230000000052 comparative effect Effects 0.000 description 12
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- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- MGWAVDBGNNKXQV-UHFFFAOYSA-N diisobutyl phthalate Chemical compound CC(C)COC(=O)C1=CC=CC=C1C(=O)OCC(C)C MGWAVDBGNNKXQV-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
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- 239000000155 melt Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- PRQBJPGIUOLASY-UHFFFAOYSA-L zinc phenylphosphinate Chemical group [Zn++].[O-]P(=O)c1ccccc1.[O-]P(=O)c1ccccc1 PRQBJPGIUOLASY-UHFFFAOYSA-L 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92552—Frequency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/18—Heat-exchangers or parts thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to an automobile radiator, in particular to an inlet and outlet water chamber of an automobile radiator, and belongs to the field of high polymer materials. The water inlet and outlet chamber of the automobile radiator comprises the following components in parts by weight: 50-60 parts of PA66, alkali-free glass fiber: 25-30 parts of lemon gypsum: 5-10 parts of nano Sm2O35-10 parts of nucleating agent: 1-2 parts of aniline black master batch: 1-2 parts of antioxidant: 2-3 parts of a dispersant: 5-10 parts of a plasticizer: 5-10 parts. The invention is to nano Sm2O3The pretreatment is carried out, meanwhile, the dispersing agent is added, so that the lemon gypsum, the matrix resin and the alkali-free glass fiber can play a composite role, and the proper antioxidant and the proper plasticizer are selected, so that the water inlet chamber and the water outlet chamber of the radiator are corrosion-resistant and have high strength.
Description
Technical Field
The invention relates to an automobile radiator, in particular to an inlet and outlet water chamber of an automobile radiator, and belongs to the field of high polymer materials.
Background
The function of the cooling system of the automobile is to keep the automobile in a proper temperature range under all working conditions. The cooling system of the automobile is divided into air cooling and water cooling. An air cooling system using air as a cooling medium, and a water cooling system using a cooling liquid as a cooling medium. The water cooling system is generally composed of a water pump, a radiator, a cooling fan, a thermostat, a compensating water tank, a water jacket in an engine body and a cylinder cover and other accessories. The radiator is responsible for cooling circulating water, the water chamber and the radiating fins of the radiator are made of aluminum materials, the aluminum water chamber is made into a flat shape, the radiating fins are corrugated, the radiating performance is emphasized, the mounting direction is perpendicular to the air flowing direction, the wind resistance is small as much as possible, and the cooling efficiency is high. The coolant flows through the radiator core, and the air passes through the radiator core. The radiator is a heat exchanger because the hot coolant cools by radiating heat to the air, and because the cold air heats by absorbing the heat radiated by the coolant.
Disclosure of Invention
Aiming at the problems, the invention provides the water inlet and outlet chamber of the automobile radiator, which is corrosion-resistant and high in strength.
The purpose of the invention is realized by the following technical scheme: the water inlet and outlet chamber of the automobile radiator comprises the following components in parts by weight: 50-60 parts of PA66, alkali-free glass fiber: 25-30 parts of lemon gypsum: 5-10 parts of nano Sm2O35-10 parts of nucleating agent: 1-2 parts of aniline black master batch: 1-2 parts of antioxidant: 2-3 parts of a dispersant: 5-10 parts of a plasticizer: 5-10 parts.
The water inlet and outlet chamber of the automobile radiator takes PA66 resin with symmetrical molecular chain structure and high crystallinity as matrix resin, alkali-free glass fiber is added to play a role in enhancing the skeleton structure, and on the basis, stress borne by the lemon gypsum in a dispersing way is also added, and nano Sm is added2O3The composite material is uniformly dispersed in matrix resin, the lattice size of the composite material is changed, the comprehensive performance of PA66 is obviously improved, and meanwhile, a nucleating agent, nigrosine black master batch, a dispersing agent and a plasticizer are added, so that the obtained radiator inlet and outlet chamber has excellent corrosion resistance and high strength. Wherein, the molecular weight of PA66 in the composite material is 1.8-2.0 ten thousand, the narrower the molecular weight distribution, the more stable the raw material performance, the best the viscosity is about 2.1, which is beneficial to nano Sm2O3Dispersing in matrix resin to promote PA66 to nano Sm2O3Coating of (2).
In the water inlet and outlet chamber of the automobile radiator, the length of the alkali-free glass fiber is 2.0-3.0mm, and the diameter of the alkali-free glass fiber is 10-15 mu m. In the invention, the alkali-free glass fiber plays a role in reinforcing a skeleton structural formula in the nylon, and when a load is applied, the stress is rapidly diffused and the tissue crack is increased due to the axial transmission of the alkali-free glass fiber, so that the mechanical property of the nylon can be enhanced along with the increase of the content of the alkali-free glass fiber. Meanwhile, the addition of the alkali-free glass fiber can increase the effect of hindering the movement of polymer macromolecular chain segments in an interface layer between the fiber and matrix resin, improve the glass transition temperature of the material and macroscopically show that the heat distortion temperature is improved. Meanwhile, as the content of the alkali-free glass fiber is increased, the melt flow rate and the elongation at break of the composite material are reduced, and the density and the hardness are increased, which also indicates that the compression resistance of the material is improved. However, when the content of the alkali-free glass fiber is too high, the fluidity of the prepolymer is reduced, and great troubles are brought to the weaving process. Therefore, the alkali-free glass fiber is selected in the water inlet and outlet chamber of the radiator, so that the performance of PA66 can be enhanced without influencing the processing and manufacturing process of the PA 66.
Secondly, the invention adds the lemon gypsum into PA 66. The lemon gypsum is waste residue generated in the process of producing citric acid, and the main component of the lemon gypsum is CaSO4·2H20. After the lemon gypsum is added into the radiator, the appearance and the appearance of the lemon gypsum are fibrous with a certain length-diameter ratio, the lemon gypsum is added into PA66, when external force is applied, stress is transmitted to the lemon gypsum whiskers through PA66 matrix resin, and the whiskers bear partial stress, so that the stress applied to the matrix resin is dispersed, and the tensile strength, the flexural modulus and the flexural strength of the manufactured radiator in and out of a water chamber are enhanced. Preferably, the particle size of the lemon gypsum in the invention is 50-60 μm.
In addition, the invention adds nano Sm into PA662O3Due to the nano Sm2O3The rare earth nano oxide has strong physicochemical action with matrix resin, and because the particle size of the rare earth nano oxide is smaller, the specific surface area is large, the proportion of atoms in the surface layer is large, and because of quantum tunneling effect and the like, a large number of active points are formed on the surface of the particles, and the strong physicochemical action with the matrix resin is generated, so that the composite material can bear larger tensile force or impact load, and the composite material has the effects of strengthening and toughening PA 66.
Preferably, the nano Sm2O3Firstly, ultrasonic treatment is carried out and then coupling treatment is carried out. Wherein the power of ultrasonic treatment is 90-100W, the temperature is 40-50 ℃, and the time is 10-15 min. The cavitation generated by the ultrasonic wave can solve the problem of the nano Sm2O3Agglomeration problems after addition to PA66, which results in high temperature, high pressure, strong impactThe shock waves and the micro-jet flow are beneficial to improving the dispersion and stability of the shock waves and the micro-jet flow in the PA66, so that the prepared PA66 material has high strength.
Preferably, the coupling agent for coupling treatment is KH-560, and the temperature for coupling treatment is 60-80 ℃. Nano Sm after coupling treatment2O3The surface is rich in hydroxyl groups and can be linked to form a polycyclic net structure, so that the PA66 material plays a role of a skeleton, and the dispersibility of the PA66 material in the PA66 material can be obviously improved.
In the water inlet and outlet chamber of the automobile radiator, the particle size of the nigrosine black master batch is 2-3 mm. The aniline black color master is added in the invention, so that the problem of fiber floating can be solved, the glossiness and the blackness of the product are higher than those of carbon black, and the product is beneficial to improving the heat dissipation performance of a water inlet chamber and a water outlet chamber of a radiator.
In the water inlet and outlet chamber of the automobile radiator, the nucleating agent is zinc phenylphosphinate. The nucleating agent is added on the basis of PA66, the nucleating agent can obviously reduce the spherulite size of PA66, the tensile elastic modulus, the yield stress, the tensile strength, the surface hardness, the crystallinity and the like are improved in different degrees, and the elongation at break is reduced more at normal temperature and less at high temperature.
In the water inlet and outlet chamber of the automobile radiator, the antioxidant is one or two of antioxidant 168 and antioxidant 1076. The antioxidant can obviously improve the aging performance of PA66, provides better aging protection for PA66 in the manufacturing and using processes, and further prolongs the service life of the water inlet chamber and the water outlet chamber of the automobile radiator.
In the water inlet and outlet chamber of the automobile radiator, the dispersing agent is one or more of silicone powder and sodium aliphatate. The dispersant is added into the water inlet chamber and the water outlet chamber of the automobile radiator, so that the surface roughness of the water inlet chamber and the water outlet chamber can be reduced, the abrasion to equipment is reduced, and meanwhile, PA66, alkali-free glass fiber and nano Sm are improved2O3The phase interface disappears, and the alkali-free glass fiber and the nano Sm can be obtained2O3The flowing of the glass fiber is well coated, the alkali-free glass fiber is prevented from being exposed, and the improvement ofMelt flowability of the extrudate.
In the water inlet and outlet chamber of the automobile radiator, the plasticizer is one or two of diisobutyl phthalate and triphenyl phosphate. The pure PA66 cured product is brittle and has poor impact resistance and bending resistance, and the brittleness of the cured product can be correspondingly reduced by adding the plasticizer, so that the flexibility of the cured product is improved. The plasticizer is a compound with good compatibility with the high polymer, and the glass transition temperature of the high polymer is reduced through physical action, so that the purposes of improving processing and endowing the product with flexibility are achieved. The plasticizer is added into the PA66, so that the fluidity of the resin can be improved, the flowing temperature is reduced, the processing and the forming are facilitated, and the impact strength, the flexibility, the high temperature resistance and other properties of a cured product are improved.
The preparation method of the water inlet and outlet chamber of the automobile radiator comprises the following steps: weighing the raw materials for preparing the water inlet and outlet chamber according to the parts by weight, preparing the weighed raw materials into nylon composite particles by a torque rheometer by adopting a melt mechanical blending method, quickly injecting the nylon composite particles into a preheated pipeline mold, and cooling and demolding to obtain the finished product of the water inlet and outlet chamber of the radiator.
Preferably, the main machine rotating speed of the twin-screw extruder in the torque rheometer is 30-35Hz, the main feeding is 25-30Hz, and the temperature is 290-300 ℃.
Preferably, the preheating temperature of the pipeline mold is 150-155 ℃, and the cooling demolding temperature is 50-60 ℃.
Compared with the prior art, the invention has the following advantages:
1. the water inlet chamber and the water outlet chamber of the radiator adopt PA66 resin as matrix resin, alkali-free glass fiber is added to play a role in enhancing the skeleton structure, and on the basis, the stress borne by the lemon gypsum in a dispersing way is also added, and nano Sm is added2O3The high-temperature-resistant water-cooling heat radiator is uniformly dispersed in matrix resin and absorbs impact energy, and simultaneously, the antioxidant, the dispersing agent and the plasticizer are added, so that the high-temperature-resistant water-cooling heat radiator has high strength while resisting high temperature;
2. the invention is to nano Sm2O3Pretreating, adding disperser to make the lemon gypsum and matrix resin,The alkali-free glass fiber plays a composite role, and a proper antioxidant and a proper plasticizer are selected, so that the performance of the water inlet chamber and the water outlet chamber of the radiator is further improved.
3. The water inlet and outlet pipe of the automobile radiator has reasonable compatibility, and the prepared water inlet and outlet chamber has corrosion resistance and high strength by adopting a specific preparation method.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Table 1: the components and the parts by weight of the water inlet and outlet pipe of the automobile radiator in the embodiment 1-5 of the invention
In Table 1, the length of the alkali-free glass fiber is 2.0-3.0mm, and the diameter is 10-15 μm; nano Sm2O3Firstly, ultrasonic treatment is carried out and then coupling treatment is carried out.
Weighing the raw materials for preparing the air inlet and outlet pipe according to the weight parts in the example 1 in the table 1, preparing the weighed raw materials into nylon composite particles by a torque rheometer by adopting a melting mechanical blending method, quickly injecting the nylon composite particles into a preheated pipeline mold, and demolding after cooling to obtain the finished product of the air inlet and outlet pipe of the intercooler of the invention. Wherein the main machine rotating speed of a double-screw extruder in the torque rheometer is 30Hz, the main feeding is 25Hz, and the temperature is 290 ℃; the preheating temperature of the pipeline mould is 150 ℃, and the cooling demoulding temperature is 50 ℃.
Example 2
Weighing the raw materials for preparing the air inlet and outlet pipe according to the weight parts in the example 2 in the table 1, preparing the weighed raw materials into nylon composite particles by a torque rheometer by adopting a melting mechanical blending method, quickly injecting the nylon composite particles into a preheated pipeline mold, and demolding after cooling to obtain the finished product of the air inlet and outlet pipe of the intercooler of the invention. Wherein the main machine rotating speed of a double-screw extruder in the torque rheometer is 31Hz, the main feed is 26Hz, and the temperature is 292 ℃; the preheating temperature of the pipeline mould is 151 ℃, and the cooling demoulding temperature is 52 ℃.
Example 3
Weighing the raw materials for preparing the air inlet and outlet pipe according to the weight parts in the embodiment 3 in the table 1, preparing the weighed raw materials into nylon composite particles by a torque rheometer by adopting a melting mechanical blending method, quickly injecting the nylon composite particles into a preheated pipeline mold, and demolding after cooling to obtain the finished product of the air inlet and outlet pipe of the intercooler of the invention. Wherein the main machine rotating speed of a double-screw extruder in the torque rheometer is 33Hz, the main feed is 27Hz, and the temperature is 294 ℃; the preheating temperature of the pipeline mould is 152 ℃, and the cooling demoulding temperature is 54 ℃.
Example 4
Weighing the raw materials for preparing the air inlet and outlet pipe according to the weight parts in the embodiment 4 in the table 1, preparing the weighed raw materials into nylon composite particles by a torque rheometer by adopting a melting mechanical blending method, quickly injecting the nylon composite particles into a preheated pipeline mold, and demolding after cooling to obtain the finished product of the air inlet and outlet pipe of the intercooler of the invention. Wherein the main machine rotating speed of a double-screw extruder in the torque rheometer is 34Hz, the main feeding is 29Hz, and the temperature is 297 ℃; the preheating temperature of the pipeline mould is 154 ℃, and the cooling demoulding temperature is 57 ℃.
Example 5
Weighing the raw materials for preparing the air inlet and outlet pipe according to the weight parts in the example 5 in the table 1, preparing the weighed raw materials into nylon composite particles by a torque rheometer by adopting a melting mechanical blending method, quickly injecting the nylon composite particles into a preheated pipeline mold, and demolding after cooling to obtain the finished product of the air inlet and outlet pipe of the intercooler of the invention. Wherein the main machine rotating speed of a double-screw extruder in the torque rheometer is 35Hz, the main feeding is 30Hz, and the temperature is 300 ℃; the preheating temperature of the pipeline mould is 155 ℃, and the cooling demoulding temperature is 60 ℃.
Comparative example 1
This comparative example differs from example 1 only in that it does not contain alkali-free glass fibers, and is otherwise the same as example 1 and will not be described again here.
Comparative example 2
This comparative example differs from example 1 only in that it does not contain lemon gypsum, and is otherwise the same as example 1 and will not be described again here.
Comparative example 3
This comparative example differs from example 1 only in that it does not contain nano-Sm2O3Otherwise, the same as in example 1 is not repeated here.
Comparative example 4
This comparative example differs from example 1 only in that it does not contain lemon gypsum and nano Sm2O3Otherwise, the same as in example 1 is not repeated here.
Comparative example 5
This comparative example differs from example 1 only in that it does not contain alkali-free glass fibers, lemon gypsum and nano-Sm2O3Otherwise, the same as in example 1 is not repeated here.
The performance of the water inlet and outlet pipes of the automobile radiators in examples 1-5 and comparative examples 1-5 was tested, and the test results are shown in Table 2.
Table 2: performance test results of the water inlet and outlet pipes of the automobile radiators in examples 1-5 and comparative examples 1-5
In conclusion, the water inlet and outlet chamber of the automobile radiator takes PA66 resin with symmetrical molecular chain structure and high crystallinity as matrix resin, the alkali-free glass fiber is added to play a role in enhancing the skeleton structure, and the stress borne by the lemon gypsum in a dispersing way and the nano Sm are added on the basis of the function2O3The composite material is uniformly dispersed in matrix resin, the lattice size of the composite material is changed, the comprehensive performance of PA66 is obviously improved, and meanwhile, a nucleating agent, nigrosine black master batch, a dispersing agent and a plasticizer are added, so that the obtained automobile radiator water inlet and outlet chamber has excellent corrosion resistance and high strength.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
While the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof.
Claims (5)
1. The water inlet and outlet chamber for the automobile radiator is characterized by comprising the following components in parts by weight: 50-60 parts of PA66, alkali-free glass fiber: 25-30 parts of lemon gypsum: 5-10 parts of nano Sm2O35-10 parts of nucleating agent: 1-2 parts of aniline black master batch: 1-2 parts of antioxidant: 2-3 parts of a dispersant: 5-10 parts of a plasticizer: 5-10 parts; the nano Sm is2O3Firstly, carrying out ultrasonic treatment and then carrying out coupling treatment; the ultrasonic treatment power is 90-100W, the temperature is 40-50 deg.C, and the time is 10-15 min.
2. The water inlet and outlet chamber of the automobile radiator as claimed in claim 1, wherein the alkali-free glass fiber has a length of 2.0-3.0mm and a diameter of 10-15 μm.
3. The water inlet and outlet chamber for the automobile radiator as claimed in claim 1, wherein the particle size of the lemon gypsum is 50-60 μm.
4. The water inlet/outlet chamber for automobile radiator as claimed in claim 1, wherein the coupling agent for coupling treatment is KH-560, and the temperature for coupling treatment is 60-80 ℃.
5. The water inlet and outlet chamber for the automobile radiator as claimed in claim 1, wherein the nigrosine masterbatch has a particle size of 2-3 mm.
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Effective date of registration: 20240927 Address after: No. 12-16 Dongbei Road, Shangling Village, Dongqiao Town, Haishu District, Ningbo City, Zhejiang Province 315000 Patentee after: NINGBO MINGYE AUTOMOBILE PARTS Co.,Ltd. Country or region after: China Address before: No. 12-16, Dongbei Road, Shangling Village, Dongqiao Town, Haishu District, Ningbo City, Zhejiang Province 315100 Patentee before: Ningbo Haishu Hongyan Auto Parts Factory Country or region before: China |