CN107033836A - Sealant composition of long-acting mould-proof and preparation method thereof - Google Patents
Sealant composition of long-acting mould-proof and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
- C09J183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
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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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
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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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- 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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/549—Silicon-containing compounds containing silicon in a ring
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- Organic Chemistry (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The present invention discloses a kind of sealant composition of long-acting mould-proof, and the dimethyl silicone polymer blocked by trimethoxy, nano-silver mildew-proof agent, hydroxyl scavenger, crosslinking agent, coupling agent and catalyst are constituted, and the hydroxyl scavenger is silicon nitrogen heterocyclic.Compared with prior art, the sealant composition of the long-acting mould-proof of the present invention is used as hydroxyl scavenger using silicon nitrogen heterocyclic, can be good with alcohol type silicone sealant Miscibility, single-component dealcoholization-type silicon rubber storage period can be significantly improved, and substrate bonding can be effectively improved；Introducing nano silver antimicrobials can be entered in bacterial body by ionizing sustainedly and stably release silver ion, its penetration cell wall is set to enter intracellular, and reacted with SH bases, make protein coagulating, destroy separate out again after the activity of cell synzyme, so as to keep antimildew and antibacterial effect for a long time, possesses antimildew and antibacterial effect environmentally friendly, nontoxic, efficient, stably, long-acting.
Description
Technical field
The present invention relates to sealant composition field, the sealant composition of more particularly to a kind of long-acting mould-proof and its preparation
Method.
Background technology
Silicone sealant has excellent resistance to ag(e)ing, uvioresistant, shock resistance, high-low temperature resistant, in harsh climate ring
The features such as elasticity can be kept in border, therefore be widely used in the industry dealcoholysis such as building, automobile, electric, mechanical, chemical industry
Alcohol is discharged in type room temperature vulcanized silicone rubber sulfidation, compared to depickling type and ketoxime removing type, with environmentally friendly, free from corrosion
Advantage.
The defect of prior art：The curability of silicone sealant is gradually reduced not even with the extension of period of storage
Vulcanization, main cause be free alcohol in dealcoholized type room temperature vulcanized silicone rubber in the presence of organo-metallic catalyst with poly- silica
Equilibration reaction occurs for alkane, forms (the CH without crosslinking function3O)(CH3)2SiO1/2End group；Common silicone sealant is long-term
During in long-term immersion or long-term hygrothermal environment, easy mould growth corrodes with the procreation of mould, can make fluid sealant matrix by
Destruction, influence even loss of seal effect.
The content of the invention
To solve above technical problem, the present invention provides sealant composition of long-acting mould-proof and preparation method thereof, to solve
Certainly stable storing, with excellent mechanical property, and can meet and used under the conditions of long-term water logging, damp and hot or other easy mould growths
Sealing and mould proof the problem of require.
The technical solution adopted by the present invention is as follows：A kind of sealant composition of long-acting mould-proof, key is by following matter
Measure the raw material composition of number：
50-80 parts of dimethyl silicone polymer, 8-15 parts of nano-silver mildew-proof agent, the hydroxyl scavenger 1-6 of trimethoxy end-blocking
Part, 5~12 parts of crosslinking agent, 3~10 parts of coupling agent, 0.1~2 part of catalyst；
The hydroxyl scavenger is silicon nitrogen heterocyclic.
It is preferred that, the mass fraction of the raw material is：68 parts of dimethyl silicone polymer, the Nano Silver of trimethoxy end-blocking are prevented
Mould dose 10 parts, 3 parts of silicon nitrogen heterocyclic, 7 parts of crosslinking agent, 5 parts of coupling agent, 0.5 part of catalyst composition.
It is preferred that, the silicon nitrogen heterocyclic is obtained using following methods：It is 1 by mol ratio:500~1500 acid is urged
In agent and silane compound input reactor, intramolecular cyclization reaction is carried out, reflux state is heated to, the reaction time is 5-
20h, reaction stops reaction when not regenerating alcohol, and distillation obtains the silicon heterocyclic compound.
It is preferred that, described silane compound is shown below：
Wherein n=2~4, n is integer, and n is preferably 3；
Described acid is one kind in trifluoromethanesulfonic acid, fluosulfonic acid, benzene sulfonic acid, methanesulfonic acid.
It is preferred that, the nano-silver mildew-proof agent is obtained using following methods：
Step 1: glucose is dissolved in deionized water, the solution that molar concentration is 0.5-1.5mol/L is configured to, is put
140-180 DEG C is reacted in hydrothermal reaction kettle, and the reaction time is 8-20h；After the completion of reaction, by the centrifugation point of gained mixed liquor
From, and washed respectively using deionized water and absolute ethyl alcohol, 24h is dried in drying box, carbosphere is produced；
Step 2: carbosphere is added into mass concentration in 0.05-0.3% hydrazine hydrate solution, to shake after being well mixed,
Add the silver nitrate solution that molar concentration is 0.1-0.3mol/L；Above-mentioned mixed liquor is placed in the water-bath of 40-60 DEG C of temperature again,
After it becomes colour-stable, it is stored at room temperature 10-20 hours, obtains the nano-silver mildew-proof agent.
It is preferred that, the catalyst is isopropyl titanate, two (acetylacetone,2,4-pentanedione) two (isopropoxy) titanate esters complex compound, two
One or both of dibutyl tin laurate, dibutyltin diacetate thing mixed above.
It is preferred that, the coupling agent is gamma-aminopropyl-triethoxy-silane, β-aminoethyl-γ-aminopropyl trimethoxy silicon
One kind in alkane.
It is preferred that, the crosslinking agent is MTMS, vinyltrimethoxy silane or phenyl trimethoxy
At least one of silane.
A kind of preparation method of the sealant composition of long-acting mould-proof, key is to carry out according to the following steps：
Step 1: preparing nano-silver mildew-proof agent and silicon nitrogen heterocyclic respectively；
Step 2: the dimethyl silicone polymer that trimethoxy is blocked, nano-silver mildew-proof agent are added in vacuum kneader, very
Reciprocal of duty cycle is -0.04~-0.1MPa, mediates 1~10 hour, base rubber is made, then is ground with three-roller, then moves into high-speed mixer
Middle vacuum removal bubble, vacuum is -0.04~-0.1MPa, obtains homogeneous mixture A；
Step 3: coupling agent, catalyst are placed in reactor, stirring is evacuated, and temperature is risen to 60 DEG C~100 DEG C instead
Answer 1~4 hour, catalyst mixture is made；Room temperature is cooled to, by the mixture A obtained in step 2, silicon nitrogen heterocyclic
Enter with catalyst in high speed dispersor, evacuate stirring, vacuum is -0.04~-0.1MPa, and rotating speed is 50~1000rpm, stirring
Time be 15~120min after finished product.
Beneficial effect：Compared with prior art, the sealant composition of long-acting mould-proof of the invention is cyclized using silicon azepine
Compound, can be good with alcohol type silicone sealant Miscibility as hydroxyl scavenger, can significantly improve single-component dealcoholization-type silicon rubber
Glue storage period, and substrate bonding can be effectively improved, reason is hydroxyl scavenger, and it just can be with dissociating in system at room temperature
Alcohol reacts, and generates amino silane, a kind of conventional tackifier of amino silane exactly dealcoholized type room temperature vulcanized silicone rubber；Introduce nanometer
Silver antibacterial agent can sustainedly and stably release silver ion enters in bacterial body by ionization, its penetration cell wall is entered intracellular, and
Reacted with SH bases, make protein coagulating, separate out again after the activity of destruction cell synzyme, so as to keep for a long time mould proof
Antibiotic effect, possesses antimildew and antibacterial effect environmentally friendly, nontoxic, efficient, stably, long-acting, and antimildew and antibacterial grade reaches JIS Z2911
The superlative degree of standard, popularity bacillus, food Trichoderma, stain fungus etc. have stronger killing action；The present invention's is long-acting anti-
Mould sealant composition preparation method is simple to operate, react controllable, and safety coefficient is high.
Embodiment
To make those skilled in the art be better understood from technical scheme, with reference to subordinate list and specific embodiment party
Formula elaborates to the present invention.
First, a kind of sealant composition of long-acting mould-proof
Embodiment 1：The configuration proportion of each raw material in the sealant composition of long-acting mould-proof
By each raw material in the sealant composition of long-acting mould-proof, the mass fraction as described in table 1 is mixed respectively, obtains 3 groups
Sealant composition I~III of the long-acting mould-proof of different mixing proportion.
The sealant composition of the long-acting mould-proof of the different mixing proportion of table 1 (mass fraction)
Embodiment 2：The preparation method of the sealant composition of long-acting mould-proof
Step 1: the preparation of silicon nitrogen heterocyclic：It is 1 by mol ratio:1500 trifluoromethanesulfonic acid and silane compound
Put into reactor, carry out intramolecular cyclization reaction, be heated to reflux state, the reaction time is 5-20h, reaction does not regenerate alcohol
When stop reaction, and distill obtain the silicon nitrogen heterocyclic.
Described silane compound is shown below：
Wherein n=2；
Described acid is, one kind in fluosulfonic acid, benzene sulfonic acid, methanesulfonic acid.
The preparation of nano-silver mildew-proof agent：Glucose is dissolved in deionized water, molar concentration is configured to for 1.5mol/L
Solution, be placed in hydrothermal reaction kettle 140-180 DEG C and reacted, the reaction time is 8-20h；After the completion of reaction, gained is mixed
Close liquid to centrifuge, and washed respectively using deionized water and absolute ethyl alcohol, 24h is dried in drying box, carbosphere is obtained；So
Carbosphere is added into mass concentration in 0.3% hydrazine hydrate solution, after shaking is well mixed, adding molar concentration is afterwards
0.3mol/L silver nitrate solution；Above-mentioned mixed liquor is placed in the water-bath of 40-60 DEG C of temperature again, after it becomes colour-stable, room
Temperature stands 10-20 hours, obtains the nano-silver mildew-proof agent.
Step 2: the dimethyl silicone polymer of 50 parts of trimethoxy end-blockings, 8 parts of nano-silver mildew-proof agent are added into vacuum kneading
In machine, vacuum is -0.04~-0.1MPa, mediates 1~10 hour, base rubber is made, then is ground with three-roller, then moves into height
Vacuum removal bubble in fast mixer, vacuum is -0.04~-0.1MPa, obtains mixture A；
Step 3: 3 parts of gamma-aminopropyl-triethoxy-silanes, 0.1 part of isopropyl titanate are placed in reactor, evacuation is stirred
Mix, and temperature is risen to 60 DEG C~100 DEG C and react 1~4 hour, catalyst mixture is made；Be cooled to room temperature, by mixture A,
1 part of silicon nitrogen heterocyclic and 5 parts of MTMSs are added in high speed dispersor, evacuate stirring, and vacuum is -0.04
~-0.1MPa, rotating speed be 50~1000rpm, mixing time be 15~120min after composition I.
Embodiment 3：The preparation method of the sealant composition of long-acting mould-proof
Step 1: the preparation of silicon nitrogen heterocyclic：It is 1 by mol ratio:500 fluosulfonic acid and silane compound input is anti-
Answer in kettle, carry out intramolecular cyclization reaction, be heated to reflux state, the reaction time is 5-20h, reaction stops when not regenerating alcohol
Reaction, and distillation obtains the silicon nitrogen heterocyclic.
Described silane compound is shown below：
Wherein n=4；
Described acid is, one kind in benzene sulfonic acid, methanesulfonic acid.
The preparation of nano-silver mildew-proof agent：Glucose is dissolved in deionized water, molar concentration is configured to for 0.5mol/L
Solution, be placed in hydrothermal reaction kettle 140-180 DEG C and reacted, the reaction time is 8-20h；After the completion of reaction, gained is mixed
Close liquid to centrifuge, and washed respectively using deionized water and absolute ethyl alcohol, 24h is dried in drying box, carbosphere is obtained；So
Carbosphere is added into mass concentration in 0.05% hydrazine hydrate solution, after shaking is well mixed, adding molar concentration is afterwards
0.1mol/L silver nitrate solution；Above-mentioned mixed liquor is placed in the water-bath of 40-60 DEG C of temperature again, after it becomes colour-stable, room
Temperature stands 10-20 hours, obtains the nano-silver mildew-proof agent.
Step 2: the dimethyl silicone polymer of 80 parts of trimethoxy end-blockings, 15 parts of nano-silver mildew-proof agent are added vacuum and pinched
In conjunction machine, vacuum is -0.04~-0.1MPa, mediates 1~10 hour, base rubber is made, then is ground with three-roller, is then moved into
Vacuum removal bubble in high-speed mixer, vacuum is -0.04~-0.1MPa, obtains mixture A；
Step 3: 10 parts of β-aminoethyl-γ-aminopropyltrimethoxysilanes, 2 parts of dibutyl tin laurates are placed in instead
Answer in kettle, evacuate stirring, and temperature is risen to 60 DEG C~100 DEG C and react 1~4 hour, catalyst mixture is made；It is cooled to room
Temperature, mixture A, 6 parts of silicon nitrogen heterocyclics and 12 parts of vinyltrimethoxy silanes is added in high speed dispersor, evacuation is stirred
Mix, vacuum be -0.04~-0.1MPa, rotating speed be 50~1000rpm, mixing time be 15~120min after composition II.
Embodiment 4：The preparation method of the sealant composition of long-acting mould-proof
Step 1: the preparation of silicon nitrogen heterocyclic：It is 1 by mol ratio:1000 benzene sulfonic acid and silane compound input
In reactor, intramolecular cyclization reaction is carried out, reflux state is heated to, the reaction time is 5-20h, reaction stops when not regenerating alcohol
Only react, and distillation obtains the silicon nitrogen heterocyclic.
Described silane compound is shown below：
Wherein n=3；
The preparation of nano-silver mildew-proof agent：Glucose is dissolved in deionized water, molar concentration is configured to for 1.2mol/L
Solution, be placed in hydrothermal reaction kettle 140-180 DEG C and reacted, the reaction time is 8-20h；After the completion of reaction, gained is mixed
Close liquid to centrifuge, and washed respectively using deionized water and absolute ethyl alcohol, 24h is dried in drying box, carbosphere is obtained；So
Carbosphere is added into mass concentration in 0.3% hydrazine hydrate solution, after shaking is well mixed, adding molar concentration is afterwards
0.2mol/L silver nitrate solution；Above-mentioned mixed liquor is placed in the water-bath of 40-60 DEG C of temperature again, after it becomes colour-stable, room
Temperature stands 10-20 hours, obtains the nano-silver mildew-proof agent.
Step 2: the dimethyl silicone polymer of 68 parts of trimethoxy end-blockings, 10 parts of nano-silver mildew-proof agent are added vacuum and pinched
In conjunction machine, vacuum is -0.04~-0.1MPa, mediates 1~10 hour, base rubber is made, then is ground with three-roller, is then moved into
Vacuum removal bubble in high-speed mixer, vacuum is -0.04~-0.1MPa, obtains mixture A；
Step 3: 5 parts of β-aminoethyl-γ-aminopropyltrimethoxysilanes, 0.5 part of dibutyltin diacetate are placed in instead
Answer in kettle, evacuate stirring, and temperature is risen to 60 DEG C~100 DEG C and react 1~4 hour, catalyst mixture is made；It is cooled to room
Temperature, mixture A, 3 parts of silicon nitrogen heterocyclics and 7 parts of phenyltrimethoxysila,es are added in high speed dispersor, stirring is evacuated,
Vacuum be -0.04~-0.1MPa, rotating speed be 50~1000rpm, mixing time be 15~120min after composition III.
The comparative example of embodiment 5
Equipment and operation be the same as Example 4, unlike silicon nitrogen heterocyclic is changed to hexamethyl and silicon amine alkane, other are former
Material and its consumption are constant, and resulting sealant composition code name is IV.
The comparative example of embodiment 6
Equipment and operation be the same as Example 4, the difference is that the consumption of nano-silver mildew-proof agent is changed to 0, other raw materials and its use
Amount is constant, and resulting sealant composition code name is V.
2nd, the sealant composition I~V respectively prepared the various embodiments described above is according to standard《JC/T 885-2016
Mildewproof sealant for building》Performance test is carried out, it is as a result as shown in the table：
Each sealant composition performance test contrast table of table 2
Each sealant composition storage stability contrast table of table 3
From the data of upper table, the sealant composition of long-acting mould-proof of the invention is same not to add modified polyurethane prepolymer
Compared with the sealant composition of active Vitrified powder, storage stability and fungicidal properties have increased significantly；Composition I~
III is compared with composition V, due to introducing nano-silver mildew-proof agent, in addition to retaining original characteristic, ultra-fine small using Nano Silver
The characteristics of grain form is uniformly dispersed in colloid, forms the barrier of one of antimildew and antibacterial in glue-line, has resisted the invasion and attack of mould,
And this unique Antibacterial Mechanism of Nano Silver, makes bacterium not develop immunity to drugs, make fluid sealant possess it is environmentally friendly, nontoxic, efficient,
Stable, long-acting antimildew and antibacterial effect, antimildew and antibacterial grade reaches the mould proof grade of highest；Composition I~III and composition IV phases
Than surface drying time of the fluid sealant prepared using different hydroxyl scavengers in original state is basically identical, but logical
Cross 50 DEG C, 70 DEG C of accelerated aging tests and room temperature natural aging result can be seen that the hydroxyl prepared using this patent and remove
Agent glue composition I~III performance is substantially unchanged, and uses hexamethyl and silicon amine alkane as the fluid sealant IV of hydroxyl scavenger
With longer storage duration, surface drying time significantly extension can not even solidify.Thus illustrate, the hydroxyl scavenger that the present invention is provided
Bin stability effect to raising fluid sealant is notable.
Finally it is to be appreciated that foregoing description is only the preferred embodiments of the present invention, those skilled in the art is in the present invention
Enlightenment under, on the premise of without prejudice to present inventive concept and claim, expression as multiple types can be made, it is such to become
Change and each fall within protection scope of the present invention.
Claims (9)
1. a kind of sealant composition of long-acting mould-proof, it is characterised in that be made up of the raw material of following mass fraction：
50-80 parts of the dimethyl silicone polymer of trimethoxy end-blocking, 8-15 parts of nano-silver mildew-proof agent, 1-6 parts of hydroxyl scavenger, friendship
Join 5~12 parts of agent, 3~10 parts of coupling agent, 0.1~2 part of catalyst；
The hydroxyl scavenger is silicon nitrogen heterocyclic.
2. the sealant composition of long-acting mould-proof according to claim 1, it is characterised in that the mass fraction of the raw material
For：68 parts of dimethyl silicone polymer, 10 parts of nano-silver mildew-proof agent, 3 parts of silicon nitrogen heterocyclic, the crosslinking agent of trimethoxy end-blocking
7 parts, 5 parts of coupling agent, 0.5 part of catalyst composition.
3. the sealant composition of long-acting mould-proof according to claim 1, it is characterised in that：The silicon nitrogen heterocyclic
Obtained using following methods：It is 1 by mol ratio:In 500~1500 acid catalyst and silane compound input reactor, carry out
Intramolecular cyclization reaction, is heated to reflux state, and the reaction time is 5-20h, and reaction stops reaction when not regenerating alcohol, and distills
Obtain the silicon nitrogen heterocyclic.
4. the sealant composition of long-acting mould-proof according to claim 3, it is characterised in that：Described silane compound is such as
Shown in following formula：
Wherein n=2~4, n is integer, and n is preferably 3；
Described acid is one kind in trifluoromethanesulfonic acid, fluosulfonic acid, benzene sulfonic acid, methanesulfonic acid.
5. the sealant composition of long-acting mould-proof according to claim 1 or 2, it is characterised in that：The nano-silver mildew-proof
Agent is obtained using following methods：
Step 1: glucose is dissolved in deionized water, the solution that molar concentration is 0.5-1.5mol/L is configured to, water is placed in
140-180 DEG C is reacted in thermal response kettle, and the reaction time is 8-20h；After the completion of reaction, gained mixed liquor is centrifuged,
And washed respectively using deionized water and absolute ethyl alcohol, 24h is dried in drying box, carbosphere is produced；
Step 2: carbosphere is added mass concentration in 0.05-0.3% hydrazine hydrate solution, after shaking is well mixed, to add
Molar concentration is 0.1-0.3mol/L silver nitrate solution；Above-mentioned mixed liquor is placed in the water-bath of 40-60 DEG C of temperature again, it is treated
After becoming colour-stable, it is stored at room temperature 10-20 hours, obtains the nano-silver mildew-proof agent.
6. the sealant composition of the long-acting mould-proof according to claim, 2,3 or 4, it is characterised in that：The catalyst is
Isopropyl titanate, two (acetylacetone,2,4-pentanedione) two (isopropoxy) titanate esters complex compound, dibutyl tin laurate, two acetic acid dibutyl
One or both of tin thing mixed above.
7. the sealant composition of long-acting mould-proof according to claim 6, it is characterised in that：The coupling agent is γ-ammonia
One kind in propyl-triethoxysilicane, β-aminoethyl-γ-aminopropyltrimethoxysilane.
8. the sealant composition of long-acting mould-proof according to claim 7, it is characterised in that：The crosslinking agent is methyl three
At least one of methoxy silane, vinyltrimethoxy silane or phenyltrimethoxysila,e.
9. the preparation method of the sealant composition of the long-acting mould-proof according to claim any one of 1-8, it is characterised in that
Carry out according to the following steps：
Step 1: preparing nano-silver mildew-proof agent and silicon nitrogen heterocyclic respectively；
Step 2: the dimethyl silicone polymer that trimethoxy is blocked, nano-silver mildew-proof agent are added in vacuum kneader, vacuum
For -0.04~-0.1MPa, mediate 1~10 hour, base rubber is made, then ground with three-roller, then moved into true in high-speed mixer
Sky removing bubble, vacuum is -0.04~-0.1MPa, obtains homogeneous mixture A；
Step 3: coupling agent, catalyst are placed in reactor, stirring is evacuated, and temperature is risen into 60 DEG C~100 DEG C reactions 1
~4 hours, catalyst mixture is made；Room temperature is cooled to, mixture A, silicon nitrogen heterocyclic and crosslinking agent are added at a high speed
In dispersion machine, evacuate stirring, vacuum be -0.04~-0.1MPa, rotating speed be 50~1000rpm, mixing time be 15~
Finished product is obtained after 120min.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303830A (en) * | 2020-04-08 | 2020-06-19 | 深圳市先进连接科技有限公司 | Organic silicon adhesive containing nano-silver material and preparation method thereof |
| CN116622333A (en) * | 2023-07-25 | 2023-08-22 | 山东沃赛新材料科技有限公司 | Preparation method of high-power mildew-proof dealcoholization type beautifying trimming adhesive |
-
2017
- 2017-05-31 CN CN201710397101.0A patent/CN107033836A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303830A (en) * | 2020-04-08 | 2020-06-19 | 深圳市先进连接科技有限公司 | Organic silicon adhesive containing nano-silver material and preparation method thereof |
| CN116622333A (en) * | 2023-07-25 | 2023-08-22 | 山东沃赛新材料科技有限公司 | Preparation method of high-power mildew-proof dealcoholization type beautifying trimming adhesive |
| CN116622333B (en) * | 2023-07-25 | 2023-09-15 | 山东沃赛新材料科技有限公司 | Preparation method of high-power mildew-proof dealcoholization type beautifying trimming adhesive |
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Application publication date: 20170811 |