CN114907667A - High-strength injection molding part based on ABS modified material - Google Patents
High-strength injection molding part based on ABS modified material Download PDFInfo
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- CN114907667A CN114907667A CN202210768201.0A CN202210768201A CN114907667A CN 114907667 A CN114907667 A CN 114907667A CN 202210768201 A CN202210768201 A CN 202210768201A CN 114907667 A CN114907667 A CN 114907667A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 89
- 239000000463 material Substances 0.000 title claims abstract description 25
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 77
- 239000011032 tourmaline Substances 0.000 claims abstract description 54
- 229940070527 tourmaline Drugs 0.000 claims abstract description 54
- 229910052613 tourmaline Inorganic materials 0.000 claims abstract description 54
- 239000002994 raw material Substances 0.000 claims abstract description 33
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 27
- 239000002270 dispersing agent Substances 0.000 claims abstract description 24
- 239000011256 inorganic filler Substances 0.000 claims abstract description 23
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 23
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 22
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 11
- 238000005303 weighing Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- -1 polysiloxane Polymers 0.000 claims description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 229920001296 polysiloxane Polymers 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 235000012239 silicon dioxide Nutrition 0.000 claims description 8
- 239000003995 emulsifying agent Substances 0.000 claims description 7
- 238000000967 suction filtration Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- MAYCNCJAIFGQIH-UHFFFAOYSA-N buta-1,3-diene 5-phenylpenta-2,4-dienenitrile Chemical group C=CC=C.N#CC=CC=CC1=CC=CC=C1 MAYCNCJAIFGQIH-UHFFFAOYSA-N 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 229920001897 terpolymer Polymers 0.000 claims description 3
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 abstract description 44
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 abstract description 43
- 238000005452 bending Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 9
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 6
- 239000002131 composite material Substances 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 239000000956 alloy Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920006942 ABS/PC Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a high-strength injection molding based on an ABS (acrylonitrile-butadiene-styrene) modified material, which is prepared by mixing, injecting and processing the following raw materials in parts by weight: 28-45 parts of ABS resin, 3-5 parts of compatilizer, 12-18 parts of inorganic filler, 2-6 parts of modified tourmaline, 1-3 parts of wear-resistant agent, 1-3 parts of dispersing agent, 1-5 parts of silane coupling agent and 0.2-0.6 part of antioxidant; by adding the inorganic filler and the modified tourmaline into the ABS system, the bending modulus of the injection molding part can be obviously enhanced by the inorganic filler in the ABS system. The modified tourmaline can obviously enhance the impact strength and the tensile strength in an ABS system. Meanwhile, the inorganic filler and the modified tourmaline are mutually cooperated in an ABS system, so that the integral mechanical property and strength of the injection molding part can be improved.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a high-strength injection molding part based on an ABS (acrylonitrile butadiene styrene) modified material.
Background
Acrylonitrile-butadiene-styrene (ABS) has been popular among people because of its excellent chemical resistance, low temperature resistance, dimensional stability, impact resistance, etc., and is a thermoplastic engineering plastic with very wide application. As the practical application occasions, conditions and environments are different, ABS needs to be modified in various ways to meet the requirements.
At present, ABS is generally modified to form ABS alloy with certain properties. For example: in order to improve the flame retardance of ABS, PC in the ABS/PC alloy contributes to heat resistance, toughness, impact strength and strength flame retardance; ABS/PA impact-resistant, chemical-resistant, good-fluidity and heat-resistant material, and can be used for automobile internal decoration, industrial parts such as electric tools, sports equipment, lawn mowers and snow blowers, office equipment shells and the like. Although some performance of the ABS alloy is improved, the ABS alloy is not a pure ABS system, and the performances of chemical resistance, low temperature resistance, dimensional stability, impact performance and the like of the ABS are influenced and cannot be ensured.
Therefore, the ABS is modified on the premise of ensuring that the characteristics of the ABS are not influenced, so that the ABS composite material capable of preparing high-strength injection molding parts is formed.
Disclosure of Invention
The invention aims to provide a high-strength injection molding part based on an ABS modified material. The technical problem solved by the invention is as follows: on the premise of ensuring that the characteristics of the ABS are not influenced, the ABS is modified to form the ABS composite material capable of preparing high-strength injection molding parts.
The purpose of the invention can be realized by the following technical scheme:
a high-strength injection molding based on an ABS modified material is prepared by mixing and injection molding the following raw materials in parts by weight: 28-45 parts of ABS resin, 3-5 parts of compatilizer, 12-18 parts of inorganic filler, 2-6 parts of modified tourmaline, 1-3 parts of wear-resistant agent, 1-3 parts of dispersing agent, 1-5 parts of silane coupling agent and 0.2-0.6 part of antioxidant.
As a further scheme of the invention: the material is prepared by mixing and injection molding the following raw materials in parts by weight: 35 parts of ABS resin, 4 parts of compatilizer, 15 parts of inorganic filler, 3 parts of modified tourmaline, 2 parts of wear-resisting agent, 2 parts of dispersing agent, 3 parts of silane coupling agent and 0.4 part of antioxidant.
As a further scheme of the invention: the compatilizer is styrene-acrylonitrile-butadiene terpolymer.
As a further scheme of the invention: the inorganic filler is talcum powder.
As a further scheme of the invention: the modified tourmaline is prepared by the following method: weighing 8-13 parts of tourmaline powder, 2-6 parts of sodium stearate, 40-70 parts of absolute ethyl alcohol and 100 parts of deionized water according to the parts by weight, stirring and mixing the raw materials, and then carrying out suction filtration and washing to obtain pretreated tourmaline; and then adding toluene and titanate into the pretreated tourmaline, heating to 80-90 ℃, reacting for 2 hours at constant temperature, and then performing suction filtration, washing and drying again to obtain the modified tourmaline.
As a further scheme of the invention: the anti-wear agent is selected from one or more of silicon dioxide, polysiloxane and organic silicon emulsifier.
As a further scheme of the invention: the dispersing agent is polyethylene wax.
As a further scheme of the invention: the silane coupling agent is KH-570 type silane coupling agent.
As a further scheme of the invention: the process of the hybrid injection molding comprises the following steps:
s1, weighing all the raw materials according to the parts by weight of the raw materials;
s2, placing ABS resin, a compatilizer, an inorganic filler, modified tourmaline, an abrasion-resistant agent, a dispersing agent, a silane coupling agent and an antioxidant into a high-speed mixer to be mixed for 10-15min to obtain a mixture A;
s3, adding the mixture A into a double-screw extruder, controlling the processing temperature at 210-235 ℃, melting, extruding and granulating, and drying the obtained particles to obtain mixed particles B;
and S4, putting the mixed particles B into an injection molding machine, setting molding process parameters, carrying out injection molding on the mixed particles by using a mold by the injection molding machine, and cooling and demolding to obtain the high-strength injection molding piece.
As a further scheme of the invention: before the step S4, the barrel of the injection molding system is heated to 230 ℃ for 170 ℃, the hot runner is heated to 260 ℃ for 210 ℃, the fixed mold in the injection mold is heated to 65-75 ℃, and the movable mold is heated to 45-55 ℃.
The invention has the beneficial effects that:
the high-strength injection molding part based on the ABS modified material is prepared by adding the inorganic filler and the modified tourmaline into an ABS system. Inorganic fillers in ABS systems can significantly increase the flexural modulus of injection-molded parts, but reduce a certain impact strength. The modified tourmaline is modified by sodium stearate and titanate, so that the hydrophilicity of the modified tourmaline is reduced, the interface binding force between the modified tourmaline and ABS resin is improved, and the tensile strength and the impact strength of the tourmaline/ABS composite material are improved. The surface polarity of the modified tourmaline and ABS system resin is reduced, the dispersibility is enhanced, and the interface binding force with the ABS resin is obviously improved. The mechanical property of the composite material is improved through an induced crystallization effect, so that the tensile strength and the impact strength of the composite material can be obviously increased. In addition, the interface of the modified tourmaline and the ABS resin matrix forms a pinning effect, so that the surrounding matrix is subjected to micro-cracking, the crack expansion of the surrounding matrix is prevented, the toughness of the modified tourmaline/ABS composite material is increased, and the impact strength is obviously improved. Meanwhile, the inorganic filler and the modified tourmaline are mutually cooperated in an ABS system, so that the integral mechanical property and strength of the injection molding part can be improved.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a flow chart of the injection molding process of the high-strength injection molding part based on the ABS modified material.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention relates to a high-strength injection molding based on an ABS (acrylonitrile butadiene styrene) modified material, which is prepared by mixing, injecting and processing the following raw materials in parts by weight: 28-45 parts of ABS resin, 3-5 parts of compatilizer, 12-18 parts of inorganic filler, 2-6 parts of modified tourmaline, 1-3 parts of wear-resistant agent, 1-3 parts of dispersing agent, 1-5 parts of silane coupling agent and 0.2-0.6 part of antioxidant. Preferably 35 parts of ABS resin, 4 parts of compatilizer, 15 parts of inorganic filler, 3 parts of modified tourmaline, 2 parts of wear-resisting agent, 2 parts of dispersing agent, 3 parts of silane coupling agent and 0.4 part of antioxidant.
In an embodiment of the invention, the compatibilizer is a styrene-acrylonitrile-butadiene terpolymer. The inorganic filler can be selected from calcium carbonate, calcium sulfate, mica, talcum powder, silicon dioxide, magnesium hydroxide and the like, and preferably, the talcum powder is adopted. The dispersing agent is polyethylene wax. The anti-wear agent is selected from one or more of silicon dioxide, polysiloxane and organic silicon emulsifier. The silane coupling agent is KH-570 type silane coupling agent. The antioxidant is 2, 8-di-tert-butyl-4-methyl phenol.
In the embodiment of the invention, the modified tourmaline is prepared by the following method: weighing 8-13 parts of tourmaline powder, 2-6 parts of sodium stearate, 40-70 parts of absolute ethyl alcohol and 100 parts of deionized water according to the parts by weight, stirring and mixing the raw materials, and then carrying out suction filtration and washing to obtain pretreated tourmaline; and then adding toluene and titanate into the pretreated tourmaline, heating to 80-90 ℃, reacting for 2 hours at constant temperature, and then performing suction filtration, washing and drying again to obtain the modified tourmaline. Preferably, 10 parts of tourmaline powder, 4 parts of sodium stearate, 55 parts of absolute ethyl alcohol and 100 parts of deionized water, and the modified tourmaline in the following embodiments is prepared by the weight parts and the process.
In an embodiment of the present invention, as shown in fig. 1, the process of the hybrid injection molding process includes:
s1, weighing all the raw materials according to the parts by weight of the raw materials;
s2, placing ABS resin, a compatilizer, an inorganic filler, modified tourmaline, an abrasion-resistant agent, a dispersing agent, a silane coupling agent and an antioxidant into a high-speed mixer to be mixed for 10-15min to obtain a mixture A;
s3, adding the mixture A into a double-screw extruder, controlling the processing temperature at 210-;
and S4, putting the mixed particles B into an injection molding machine, setting molding process parameters, carrying out injection molding on the mixed particles by using a mold by the injection molding machine, and cooling and demolding to obtain the high-strength injection molding piece.
Wherein, before the step S4, the screw cylinder of the injection molding system is heated to 230 ℃ of 170 ℃, the hot runner is heated to 260 ℃ of 210 ℃, the fixed mold in the injection mold is heated to 65-75 ℃, and the movable mold is heated to 45-55 ℃.
Example 1
The high-strength injection molding based on the ABS modified material is prepared by mixing, injecting and processing the following raw materials in parts by weight: 28 parts of ABS resin, 3 parts of compatilizer, 12 parts of calcium carbonate, 2 parts of modified tourmaline, 1 part of polysiloxane, 1 part of dispersant, 1 part of silane coupling agent and 0.2 part of antioxidant. The process of the hybrid injection molding comprises the following steps:
s1, weighing all the raw materials according to the parts by weight of the raw materials;
s2, placing the ABS resin, the compatilizer, the calcium carbonate, the modified tourmaline, the polysiloxane, the dispersant, the silane coupling agent and the antioxidant into a high-speed mixer, and mixing for 10-15min to obtain a mixture A;
s3, adding the mixture A into a double-screw extruder, controlling the processing temperature at 210-235 ℃, melting, extruding and granulating, and drying the obtained particles to obtain mixed particles B;
s4, firstly heating a screw cylinder of the injection molding system to 230 ℃ at 170 ℃, heating a hot runner to 260 ℃ at 210 ℃, heating a fixed mold in an injection mold to 65-75 ℃, heating a movable mold to 45-55 ℃, then putting the mixed particles B into an injection molding machine, setting molding process parameters, performing injection molding on the mixed particles by the injection molding machine by using the mold, and demolding after cooling to obtain the high-strength injection molding part.
Example 2
The high-strength injection molding based on the ABS modified material is prepared by mixing, injecting and processing the following raw materials in parts by weight: 45 parts of ABS resin, 5 parts of compatilizer, 18 parts of calcium sulfate, 6 parts of modified tourmaline, 3 parts of silicon dioxide and organic silicon emulsifier, 3 parts of dispersant, 5 parts of silane coupling agent and 0.6 part of antioxidant. The process of the hybrid injection molding comprises the following steps:
s1, weighing all the raw materials according to the parts by weight of the raw materials;
s2, placing ABS resin, a compatilizer, calcium sulfate, modified tourmaline, silicon dioxide, an organic silicon emulsifier, a dispersing agent, a silane coupling agent and an antioxidant into a high-speed mixer, and mixing for 10-15min to obtain a mixture A;
s3, adding the mixture A into a double-screw extruder, controlling the processing temperature at 210-235 ℃, melting, extruding and granulating, and drying the obtained particles to obtain mixed particles B;
s4, firstly heating a screw cylinder of the injection molding system to 230 ℃ at 170 ℃, heating a hot runner to 260 ℃ at 210 ℃, heating a fixed mold in an injection mold to 65-75 ℃, heating a movable mold to 45-55 ℃, then putting the mixed particles B into an injection molding machine, setting molding process parameters, performing injection molding on the mixed particles by the injection molding machine by using the mold, and demolding after cooling to obtain the high-strength injection molding part.
Example 3
The high-strength injection molding part based on the ABS modified material is prepared by mixing and injection molding the following raw materials in parts by weight: 33 parts of ABS resin, 3 parts of compatilizer, 13 parts of talcum powder, 3 parts of modified tourmaline, 1 part of silicon dioxide, 2 parts of dispersant, 2 parts of silane coupling agent and 0.3 part of antioxidant.
The process of the hybrid injection molding comprises the following steps:
s1, weighing all the raw materials according to the parts by weight of the raw materials;
s2, placing ABS resin, a compatilizer, talcum powder, modified tourmaline, silicon dioxide, a dispersing agent, a silane coupling agent and an antioxidant into a high-speed mixer, and mixing for 10-15min to obtain a mixture A;
s3, adding the mixture A into a double-screw extruder, controlling the processing temperature at 210-235 ℃, melting, extruding and granulating, and drying the obtained particles to obtain mixed particles B;
s4, firstly heating a screw cylinder of the injection molding system to 230 ℃ at 170 ℃, heating a hot runner to 260 ℃ at 210 ℃, heating a fixed mold in an injection mold to 65-75 ℃, heating a movable mold to 45-55 ℃, then putting the mixed particles B into an injection molding machine, setting molding process parameters, performing injection molding on the mixed particles by the injection molding machine by using the mold, and demolding after cooling to obtain the high-strength injection molding part.
Example 4
The high-strength injection molding part based on the ABS modified material is prepared by mixing and injection molding the following raw materials in parts by weight: 40 parts of ABS resin, 4 parts of compatilizer, 16 parts of talcum powder, 5 parts of modified tourmaline, 3 parts of organic silicon emulsifier, 2 parts of dispersant, 4 parts of silane coupling agent and 0.4 part of antioxidant. The process of the hybrid injection molding comprises the following steps:
s1, weighing all the raw materials according to the parts by weight of the raw materials;
s2, placing ABS resin, a compatilizer, talcum powder, modified tourmaline, an organic silicon emulsifier, a dispersing agent, a silane coupling agent and an antioxidant into a high-speed mixer, and mixing for 10-15min to obtain a mixture A;
s3, adding the mixture A into a double-screw extruder, controlling the processing temperature at 210-235 ℃, melting, extruding and granulating, and drying the obtained particles to obtain mixed particles B;
s4, firstly heating a screw cylinder of the injection molding system to 230 ℃ at 170 ℃, heating a hot runner to 260 ℃ at 210 ℃, heating a fixed mold in an injection mold to 65-75 ℃, heating a movable mold to 45-55 ℃, then putting the mixed particles B into an injection molding machine, setting molding process parameters, performing injection molding on the mixed particles by the injection molding machine by using the mold, and demolding after cooling to obtain the high-strength injection molding part.
Example 5
The high-strength injection molding part based on the ABS modified material is prepared by mixing and injection molding the following raw materials in parts by weight: 35 parts of ABS resin, 4 parts of compatilizer, 15 parts of talcum powder, 3 parts of modified tourmaline, 2 parts of polysiloxane, 2 parts of dispersant, 3 parts of silane coupling agent and 0.4 part of antioxidant.
The process of the hybrid injection molding comprises the following steps:
s1, weighing all the raw materials according to the parts by weight of the raw materials;
s2, placing the ABS resin, the compatilizer, the talcum powder, the modified tourmaline, the polysiloxane, the dispersing agent, the silane coupling agent and the antioxidant into a high-speed mixer, and mixing for 10-15min to obtain a mixture A;
s3, adding the mixture A into a double-screw extruder, controlling the processing temperature at 210-235 ℃, melting, extruding and granulating, and drying the obtained particles to obtain mixed particles B;
s4, firstly heating a screw cylinder of the injection molding system to 230 ℃ at 170 ℃, heating a hot runner to 260 ℃ at 210 ℃, heating a fixed mold in an injection mold to 65-75 ℃, heating a movable mold to 45-55 ℃, then putting the mixed particles B into an injection molding machine, setting molding process parameters, performing injection molding on the mixed particles by the injection molding machine by using the mold, and demolding after cooling to obtain the high-strength injection molding part.
Comparative example 1
The comparative example differs from example 5 in that: the remaining raw materials were the same as in example 5, except that no inorganic filler was added. The mixed injection molding processing technology is also the same, and specifically comprises the following steps: when preparing a high-strength injection molding, placing ABS resin, a compatilizer, modified tourmaline, an abrasion-resistant agent, a dispersing agent, a silane coupling agent and an antioxidant into a high-speed mixer to be mixed for 10-15min to obtain a mixture A; adding the mixture A into a double-screw extruder, controlling the processing temperature at 210-235 ℃, melting, extruding and granulating, and drying the obtained particles to obtain mixed particles B; and the injection molding machine utilizes a mold to perform injection molding on the mixed particles, and the high-strength injection molding piece is obtained after the mixed particles are cooled and demoulded.
Comparative example 2
This comparative example differs from example 5 in that: the modified tourmaline was not added, and the remaining raw materials were the same as in example 5. The mixed injection molding processing technology is the same and is not described in detail.
Comparative example 3
This comparative example differs from example 5 in that: the modified tourmaline and the inorganic filler were not added, and the remaining raw materials were the same as in example 5. The mixed injection molding processing technology is the same and is not described in detail.
Test example
The high strength injection molded parts prepared in examples 1 to 5 and comparative examples 1 to 3 were subjected to a performance test. Wherein the flexural modulus is measured according to ISO 178-2019; the impact strength is tested according to ISO 180-2000 method; tensile strength was measured according to GB/T1040-2006 at a tensile rate of 50 mm/min. The test results are shown in Table 1.
TABLE 1
It can be seen from the data in Table 1 that the high strength injection molded part samples prepared in examples 1-5 have significantly improved flexural modulus, impact strength and tensile strength compared to the samples prepared in comparative examples 1-3. By comparing the samples of comparative examples 1 to 3 with the sample of example 5, it can be seen that the addition of the inorganic filler to the ABS system can significantly enhance the flexural modulus of the injection-molded parts, but can reduce a certain impact strength; the modified tourmaline can obviously enhance the tensile strength and the impact strength of an injection molding piece; and the inorganic filler and the modified tourmaline are mutually cooperated in an ABS system, so that the integral mechanical property and strength of the injection molding part can be improved.
Although one embodiment of the present invention has been described in detail, the description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. The high-strength injection molding part based on the ABS modified material is characterized by being prepared by mixing, injecting and processing the following raw materials in parts by weight: 28-45 parts of ABS resin, 3-5 parts of compatilizer, 12-18 parts of inorganic filler, 2-6 parts of modified tourmaline, 1-3 parts of wear-resistant agent, 1-3 parts of dispersing agent, 1-5 parts of silane coupling agent and 0.2-0.6 part of antioxidant.
2. The high-strength injection molding part based on the ABS modified material as claimed in claim 1 is prepared by mixing and injection molding the following raw materials in parts by weight: 35 parts of ABS resin, 4 parts of compatilizer, 15 parts of inorganic filler, 3 parts of modified tourmaline, 2 parts of wear-resisting agent, 2 parts of dispersing agent, 3 parts of silane coupling agent and 0.4 part of antioxidant.
3. The high-strength injection-molded part based on the ABS modified material as claimed in claim 1, wherein the compatibilizer is styrene-acrylonitrile-butadiene terpolymer.
4. The high-strength injection molding part based on the ABS modified material as claimed in claim 1, wherein the inorganic filler is talc.
5. The high-strength injection molding part based on the ABS modified material as claimed in claim 1, wherein the modified tourmaline is prepared by the following method: weighing 8-13 parts of tourmaline powder, 2-6 parts of sodium stearate, 40-70 parts of absolute ethyl alcohol and 100 parts of deionized water according to the parts by weight, stirring and mixing the raw materials, and then carrying out suction filtration and washing to obtain pretreated tourmaline; and then adding toluene and titanate into the pretreated tourmaline, heating to 80-90 ℃, reacting for 2 hours at constant temperature, and then performing suction filtration, washing and drying again to obtain the modified tourmaline.
6. The high-strength injection-molded part based on the ABS modified material as claimed in claim 1, wherein the anti-wear agent is selected from one or more of silicon dioxide, polysiloxane and silicone emulsifier.
7. The high-strength injection-molded part based on the ABS modified material as claimed in claim 1, wherein the dispersant is polyethylene wax.
8. The high-strength injection molding part based on ABS modified material as claimed in claim 1, wherein the silane coupling agent is KH-570 type silane coupling agent.
9. The high-strength injection molding part based on the ABS modified material as claimed in claim 1, wherein the process of the hybrid injection molding comprises:
s1, weighing all the raw materials according to the parts by weight of the raw materials;
s2, placing ABS resin, a compatilizer, an inorganic filler, modified tourmaline, an abrasion-resistant agent, a dispersing agent, a silane coupling agent and an antioxidant into a high-speed mixer to be mixed for 10-15min to obtain a mixture A;
s3, adding the mixture A into a double-screw extruder, controlling the processing temperature at 210-235 ℃, melting, extruding and granulating, and drying the obtained particles to obtain mixed particles B;
and S4, putting the mixed particles B into an injection molding machine, setting molding process parameters, carrying out injection molding on the mixed particles by using a mold by the injection molding machine, and cooling and demolding to obtain the high-strength injection molding piece.
10. The high-strength injection-molded part based on the ABS modified material as claimed in claim 9, wherein the barrel of the injection molding system is heated to 230 ℃ at 170 ℃, the hot runner is heated to 260 ℃ at 210 ℃, the fixed mold in the injection mold is heated to 65-75 ℃ and the movable mold is heated to 45-55 ℃ before the step S4.
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| CN109181205A (en) * | 2018-07-16 | 2019-01-11 | 太仓市意欣塑胶有限公司 | High-strength abrasion-proof type moulding based on ABS alloy modified material |
| US10744560B1 (en) * | 2018-03-27 | 2020-08-18 | William Kim | Nanoparticle composition having antibacterial and pyrogenic properties and its manufacturing method |
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