CN102516917A - Heat resistance single-component silane modified polyurethane sealant and preparation method thereof - Google Patents
Heat resistance single-component silane modified polyurethane sealant and preparation method thereof Download PDFInfo
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- CN102516917A CN102516917A CN2011103969475A CN201110396947A CN102516917A CN 102516917 A CN102516917 A CN 102516917A CN 2011103969475 A CN2011103969475 A CN 2011103969475A CN 201110396947 A CN201110396947 A CN 201110396947A CN 102516917 A CN102516917 A CN 102516917A
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Abstract
The invention relates to a heat resistance single-component silane modified polyurethane sealant and a preparation method thereof, which belong to the technical field of sealant. Use temperature of the existing silane modified polyurethane sealant all ranges from 0 to 100 DEG C, the existing silane modified polyurethane sealant can bear 120 DEG C for a short time, and a problem of remarkable mechanical property weakening exists if the existing silane modified polyurethane sealant is under a high temperature condition for a long time. The heat resistance single-component silane modified polyurethane sealant is mainly characterized by comprising (A) 30-40% Wt of silane modified polyurethane base polymer, (B) 30-45% Wt of filler, (C) 8-15% Wt of plasticizer, (D) 1-5% Wt of colorant, (E) 0.5-1% Wt of ultraviolet absorber, (F) 0.5-1% Wt of light stabilizer, (G) 0.4-1.5% Wt of heat resisting synergist, (H) 0.5-2% Wt of additive TI, (I) 0.5-2% Wt of silane coupling agent, (K) 0.5-2% Wt of thixtropic agent and (L) 0.2-1% Wt of catalyst. The heat resistance single-component silane modified polyurethane sealant has the advantages that heat resistance performance is greatly improved, and mechanical property after high-temperature ageing is kept well. The heat resistance single-component silane modified polyurethane sealant is mainly used in the industrial fields of automobile industry, railway transportation industry, and new energy industry and the like.
Description
Technical field
The invention belongs to the sealer technical field, the concrete single component silane modified polyurethane sealant of a kind of thermotolerance and preparation method thereof that relates to, sealing glue can be widely used in industrial circles such as automobile industry, transportation by railroad industry and new forms of energy industry.
Background technology
The silicane-modified polyurethane sealer have concurrently silicone sealant and polyurethane sealant advantage, have good weathering resistance, weather resistance, bonding widely scope bondingly need not primary coat, advantage such as can cover with paint, lacquer, colour wash, etc.
The silicane-modified polyurethane sealer is widely used in the European and American areas, and the sealer market development was rapid at home in recent years, and good growth momentum is arranged.All between 0～100 ℃, the short period of time can be born 120 ℃ to the use temperature scope of existing silicane-modified polyurethane sealer, is in for a long time under the high-temperature situation, and the mechanical property decay obviously.The purpose of single component silane modified polyurethane sealant described in the present invention be for provide a kind of can be at the good sealer of mechanics property retention under the comparatively high temps.
Summary of the invention
Problem to be solved by this invention is to provide a kind of thermotolerance single component silane modified polyurethane sealant to above-mentioned existing silicane-modified polyurethane sealer heatproof situation; Adopt this preparation method that sealing glue resistance toheat is improved; Stable performance under comparatively high temps enlarges the use temperature scope.
The technical solution of the single component silane modified polyurethane sealant of a kind of thermotolerance of the present invention is: the single component silane modified polyurethane sealant of a kind of thermotolerance is characterized in that its composition comprises:
(A) 30% ~ 40%Wt silicane-modified polyurethane base polymer;
(B) 30% ~ 45%Wt filler;
(C) 8% ~ 15%Wt softening agent;
(D) 1% ~ 5%Wt staining agent;
(E) 0.5% ~ 1%Wt uv-absorbing agent;
(F) 0.5% ~ 1%Wt photostabilizer;
(G) the heat-resisting synergistic agent of 0.4% ~ 1.5%Wt;
(H) 0.5% ~ 2%Wt water-removal additive;
(I) 0.5% ~ 2%Wt silane coupling agent;
(K) 0.5% ~ 2%Wt thixotropic agent;
(L) 0.2% ~ 1%Wt catalyzer.
Silicane-modified polyurethane base polymer described in the technical solution of the present invention be contain siloxane blocking gather the propylene oxide polymkeric substance, this propylene oxide polymkeric substance that gathers that contains siloxane blocking is Momentive SPUR 1015, Momentive SPUR 1015, Momentive SPUR 1015, GENIOSIL STP-E10, GENIOSIL STP-E15, GENIOSIL STP-E30 or GENIOSIL STP-E35.
Filler described in the technical solution of the present invention is nano-calcium carbonate, water-ground limestone, carbon black or kaolin.
Softening agent described in the technical solution of the present invention is phthalate or alkyl sulfonates.
Staining agent described in the technical solution of the present invention is carbon black or titanium oxide.
Uv-absorbing agent described in the technical solution of the present invention is the hindered amines uv-absorbing agent.
Photostabilizer described in the technical solution of the present invention is benzotriazole category, benzophenone class photostabilizer.
Heat-resisting synergistic agent described in the technical solution of the present invention is red oxide of iron, cerium oxide, White tin oxide or silicon rubber heat-resisting synergistic agent.
Water-removal additive described in the technical solution of the present invention is that vinyltrimethoxy silane can be fast and the silane coupling agent of water hydrolytic reactions.
Silane coupling agent described in the technical solution of the present invention is N-(β-aminoethyl)-γ-An Bingjisanjiayangjiguiwan, γ-An Bingjisanjiayangjiguiwan or γ-glycidyl ether oxygen propyl trimethoxy silicane.
Thixotropic agent described in the technical solution of the present invention is thermal silica, THIXCIN or polyamide wax.
Catalyzer described in the technical solution of the present invention is the organic tin catalyzer, and this organic tin catalyzer is dibutyl tin dilaurate, dibutyltin diacetate or modification organotin catalysts.
Preparing method's of the present invention technical solution is: the making method of the single component silane modified polyurethane sealant of a kind of thermotolerance is characterized in that may further comprise the steps:
(1) with silane-modified base polymer, filler, softening agent, staining agent, uv-absorbing agent, photostabilizer, heat-resisting synergistic agent adds 110 ℃ of vacuum hydro-extraction 2h of high temperature in the planet stirring tank;
(2) treat that Preblend is cooled to below 50 ℃, add water-removal additive, silane coupling agent, thixotropic agent and catalyzer, stir 0.5h, discharging pack into preserve in the high-density polyethylene plastics pipe subsequent use.
The sealer of silicane-modified polyurethane described in the present invention, it contains the silicane-modified polyurethane base polymer, filler, softening agent, staining agent, uv-absorbing agent, photostabilizer, components such as heat-resisting synergistic agent water-removal additive, silane coupling agent, thixotropic agent and catalyzer.Add the cyclisation depolymerization that heat-resisting synergistic agent can effectively prevent the oxidation cross-linked and main chain of side chain, improve thermo-oxidative stability.Adopting method is prepared described in this patent silicane-modified polyurethane sealer to compare with conventional seals glue is having obvious lifting aspect the resistance toheat, mechanical property keeps good behind high temperature ageing.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to following enforcement.
Embodiment 1:
Prepare a kind of heat resistant type silane modified polyurethane sealant, its composition is as shown in table 1.Prepare the identical sealer of proportioning simultaneously, wherein do not add cerium oxide.The following stated umber is mass parts.Add high-temperature vacuum dehydration 2h in the planet stirring tank by said proportioning.Treat that Preblend is cooled to below 50 ℃, add water-removal additive, silane coupling agent, thixotropic agent and catalyzer, stir 0.5h, make sealer.
After will making the silicane-modified polyurethane sealing glue solidifying, put into baking oven and carry out the heat-proof aging test.Its testing method is:
(1) mensuration of GB/T 528 vulcanized rubbers and TPR tensile property;
(2) GB/T 531 vulcanized rubber Shore A hardness experimental techniques.
Test result is as shown in table 2 below:
Embodiment 2:
Prepare a kind of heat resistant type silane modified polyurethane sealant, its composition is as shown in table 3.Prepare the identical sealer of proportioning simultaneously, wherein do not add red oxide of iron.The following stated umber is mass parts.Add high-temperature vacuum dehydration 2h in the planet stirring tank by said proportioning.Treat that Preblend is cooled to below 50 ℃, add water-removal additive, silane coupling agent, thixotropic agent and catalyzer, stir 0.5h, make sealer.
After will making the curing of modified silane polyether seal glue, put into baking oven and carry out the heat-proof aging test.Its testing method is:
(1) mensuration of GB/T 528 vulcanized rubbers and TPR tensile property;
(2) GB/T 531 vulcanized rubber Shore A hardness experimental techniques.
Test result is as shown in table 4:
Embodiment 3:
Prepare a kind of heat resistant type silane modified polyurethane sealant, its composition is as shown in table 5.Prepare the identical sealer of proportioning simultaneously, wherein do not add White tin oxide.The following stated umber is mass parts.Add high-temperature vacuum dehydration 2h in the planet stirring tank by said proportioning.Treat that Preblend is cooled to below 50 ℃, add water-removal additive, silane coupling agent, thixotropic agent and catalyzer, stir 0.5h, make sealer.
After will making the curing of modified silane polyether seal glue, put into baking oven and carry out the heat-proof aging test.Its testing method is:
(1) mensuration of GB/T 528 vulcanized rubbers and TPR tensile property;
(2) GB/T 531 vulcanized rubber Shore A hardness experimental techniques.
Test result is as shown in table 6:
Embodiment 4:
Prepare a kind of heat resistant type silane modified polyurethane sealant, its composition is as shown in table 7.Prepare the identical sealer of proportioning simultaneously, wherein do not add White tin oxide.The following stated umber is mass parts.Add high-temperature vacuum dehydration 2h in the planet stirring tank by said proportioning.Treat that Preblend is cooled to below 50 ℃, add water-removal additive, silane coupling agent, thixotropic agent and catalyzer, stir 0.5h, make sealer.
After will making the curing of modified silane polyether seal glue, put into baking oven and carry out the heat-proof aging test.Its testing method is:
(1) mensuration of GB/T 528 vulcanized rubbers and TPR tensile property;
(2) GB/T 531 vulcanized rubber Shore A hardness experimental techniques.
Test result is as shown in table 8:
Claims (13)
1. single component silane modified polyurethane sealant of thermotolerance, it is characterized in that: its composition comprises:
(A) 30% ~ 40%Wt silicane-modified polyurethane base polymer;
(B) 30% ~ 45%Wt filler;
(C) 8% ~ 15%Wt softening agent;
(D) 1% ~ 5%Wt staining agent;
(E) 0.5% ~ 1%Wt uv-absorbing agent;
(F) 0.5% ~ 1%Wt photostabilizer;
(G) the heat-resisting synergistic agent of 0.4% ~ 1.5%Wt;
(H) 0.5% ~ 2%Wt water-removal additive;
(I) 0.5% ~ 2%Wt silane coupling agent;
(K) 0.5% ~ 2%Wt thixotropic agent;
(L) 0.2% ~ 1%Wt catalyzer.
2. the single component silane modified polyurethane sealant of a kind of thermotolerance according to claim 1; It is characterized in that: described silicane-modified polyurethane base polymer be contain siloxane blocking gather the propylene oxide polymkeric substance, this propylene oxide polymkeric substance that gathers that contains siloxane blocking is Momentive SPUR 1015, Momentive SPUR 1015, Momentive SPUR 1015, GENIOSIL STP-E10, GENIOSIL STP-E15, GENIOSIL STP-E30 or GENIOSIL STP-E35.
3. the single component silane modified polyurethane sealant of a kind of thermotolerance according to claim 1 and 2 is characterized in that: described filler is nano-calcium carbonate, water-ground limestone, carbon black or kaolin.
4. the single component silane modified polyurethane sealant of a kind of thermotolerance according to claim 1 and 2 is characterized in that: described softening agent is phthalate or alkyl sulfonates.
5. the single component silane modified polyurethane sealant of a kind of thermotolerance according to claim 1 and 2 is characterized in that: described staining agent is carbon black or titanium oxide.
6. the single component silane modified polyurethane sealant of a kind of thermotolerance according to claim 1 and 2 is characterized in that: described uv-absorbing agent is the hindered amines uv-absorbing agent.
7. the single component silane modified polyurethane sealant of a kind of thermotolerance according to claim 1 and 2 is characterized in that: described photostabilizer is benzotriazole category, benzophenone class photostabilizer.
8. the single component silane modified polyurethane sealant of a kind of thermotolerance according to claim 1 and 2 is characterized in that: described heat-resisting synergistic agent is red oxide of iron, cerium oxide, White tin oxide or silicon rubber heat-resisting synergistic agent.
9. the single component silane modified polyurethane sealant of a kind of thermotolerance according to claim 1 and 2 is characterized in that: described water-removal additive is that vinyltrimethoxy silane can be fast and the silane coupling agent of water hydrolytic reactions.
10. the single component silane modified polyurethane sealant of a kind of thermotolerance according to claim 1 and 2 is characterized in that: described silane coupling agent is N-(β-aminoethyl)-γ-An Bingjisanjiayangjiguiwan, γ-An Bingjisanjiayangjiguiwan or γ-glycidyl ether oxygen propyl trimethoxy silicane.
11. the single component silane modified polyurethane sealant of a kind of thermotolerance according to claim 1 and 2 is characterized in that: described thixotropic agent is thermal silica, THIXCIN or polyamide wax.
12. the single component silane modified polyurethane sealant of a kind of thermotolerance according to claim 1 and 2; It is characterized in that: described catalyzer is the organic tin catalyzer, and this organic tin catalyzer is dibutyl tin dilaurate, dibutyltin diacetate or modification organotin catalysts.
13. a making method that is used to prepare the single component silane modified polyurethane sealant of the described thermotolerance of claim 1, it is characterized in that: this method may further comprise the steps:
(1) with silane-modified base polymer, filler, softening agent, staining agent, uv-absorbing agent, photostabilizer, heat-resisting synergistic agent adds 110 ℃ of vacuum hydro-extraction 2h of high temperature in the planet stirring tank;
(2) treat that Preblend is cooled to below 50 ℃, add water-removal additive, silane coupling agent, thixotropic agent and catalyzer, stir 0.5h, discharging pack into preserve in the high-density polyethylene plastics pipe subsequent use.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146336A (en) * | 2013-04-08 | 2013-06-12 | 株洲时代新材料科技股份有限公司 | Single-component silicane-modified polyurethane sealant and preparation method thereof |
| CN104087230A (en) * | 2014-06-18 | 2014-10-08 | 广州新展化工新材料有限公司 | Silane-modified polyurethane sealing material and preparation method thereof |
| CN104629671A (en) * | 2015-02-25 | 2015-05-20 | 孙高雷 | Modified polyurethane sealant |
| CN104694065A (en) * | 2015-04-01 | 2015-06-10 | 成都硅宝科技股份有限公司 | Silicane modified polyurethane sealant used for automobile and preparing method thereof |
| CN104945836A (en) * | 2015-07-13 | 2015-09-30 | 苏州新区华士达工程塑胶有限公司 | Plastic for wear-resisting interior trim panel |
| CN105295811A (en) * | 2015-11-30 | 2016-02-03 | 广州市高士实业有限公司 | High-shear and single-component silane-modified polyether sealant and preparation method thereof |
| CN105419711A (en) * | 2015-12-21 | 2016-03-23 | 桂林市和鑫防水装饰材料有限公司 | High-strength organosilicon modified polyurethane sealant and preparation method thereof |
| CN106367005A (en) * | 2016-08-26 | 2017-02-01 | 广州市高士实业有限公司 | Environment-friendly flame-retardant single-component silane-modified polyether sealant and preparation method thereof |
| CN109467910A (en) * | 2018-10-31 | 2019-03-15 | 深圳市顾康力化工有限公司 | A kind of resistance to thermal-enhanced sealing hybrid material and preparation method thereof |
| CN110894416A (en) * | 2019-12-06 | 2020-03-20 | 苏州赛伍应用技术股份有限公司 | Sealing water-blocking adhesive for photovoltaic module frame and preparation method and construction process thereof |
| CN110982036A (en) * | 2019-12-20 | 2020-04-10 | 上海东大化学有限公司 | High-temperature-resistant silane modified polymer and preparation method thereof |
| CN111592850A (en) * | 2020-05-18 | 2020-08-28 | 深圳市嘉多宝科技有限公司 | Modified silane adhesive and preparation method and application thereof |
| CN113149596A (en) * | 2020-12-29 | 2021-07-23 | 湖北澳新粘胶科技股份有限公司 | Building glue containing graphene oxide and kaolin and preparation method thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103146336B (en) * | 2013-04-08 | 2014-08-06 | 株洲时代新材料科技股份有限公司 | Single-component silicane-modified polyurethane sealant and preparation method thereof |
| CN103146336A (en) * | 2013-04-08 | 2013-06-12 | 株洲时代新材料科技股份有限公司 | Single-component silicane-modified polyurethane sealant and preparation method thereof |
| CN104087230A (en) * | 2014-06-18 | 2014-10-08 | 广州新展化工新材料有限公司 | Silane-modified polyurethane sealing material and preparation method thereof |
| CN104629671B (en) * | 2015-02-25 | 2016-08-24 | 宁波江东飞创电子科技有限公司 | A kind of modified polyurethane sealant |
| CN104629671A (en) * | 2015-02-25 | 2015-05-20 | 孙高雷 | Modified polyurethane sealant |
| CN104694065A (en) * | 2015-04-01 | 2015-06-10 | 成都硅宝科技股份有限公司 | Silicane modified polyurethane sealant used for automobile and preparing method thereof |
| CN104945836A (en) * | 2015-07-13 | 2015-09-30 | 苏州新区华士达工程塑胶有限公司 | Plastic for wear-resisting interior trim panel |
| CN105295811A (en) * | 2015-11-30 | 2016-02-03 | 广州市高士实业有限公司 | High-shear and single-component silane-modified polyether sealant and preparation method thereof |
| CN105419711A (en) * | 2015-12-21 | 2016-03-23 | 桂林市和鑫防水装饰材料有限公司 | High-strength organosilicon modified polyurethane sealant and preparation method thereof |
| CN106367005A (en) * | 2016-08-26 | 2017-02-01 | 广州市高士实业有限公司 | Environment-friendly flame-retardant single-component silane-modified polyether sealant and preparation method thereof |
| CN109467910A (en) * | 2018-10-31 | 2019-03-15 | 深圳市顾康力化工有限公司 | A kind of resistance to thermal-enhanced sealing hybrid material and preparation method thereof |
| CN110894416A (en) * | 2019-12-06 | 2020-03-20 | 苏州赛伍应用技术股份有限公司 | Sealing water-blocking adhesive for photovoltaic module frame and preparation method and construction process thereof |
| CN110982036A (en) * | 2019-12-20 | 2020-04-10 | 上海东大化学有限公司 | High-temperature-resistant silane modified polymer and preparation method thereof |
| CN111592850A (en) * | 2020-05-18 | 2020-08-28 | 深圳市嘉多宝科技有限公司 | Modified silane adhesive and preparation method and application thereof |
| CN111592850B (en) * | 2020-05-18 | 2022-03-15 | 深圳市嘉多宝科技有限公司 | Modified silane adhesive and preparation method and application thereof |
| CN113149596A (en) * | 2020-12-29 | 2021-07-23 | 湖北澳新粘胶科技股份有限公司 | Building glue containing graphene oxide and kaolin and preparation method thereof |
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Application publication date: 20120627 |