CN105219336A - A kind of environmentally friendly seal gum and preparation method thereof - Google Patents
A kind of environmentally friendly seal gum and preparation method thereof Download PDFInfo
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- CN105219336A CN105219336A CN201510571166.3A CN201510571166A CN105219336A CN 105219336 A CN105219336 A CN 105219336A CN 201510571166 A CN201510571166 A CN 201510571166A CN 105219336 A CN105219336 A CN 105219336A
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- environmentally friendly
- seal gum
- friendly seal
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Abstract
The invention discloses a kind of environmentally friendly seal gum and preparation method thereof, the environmentally friendly seal gum of described one is made up of silane modified polyether, water-removal agent, photostabilizer, softening agent, thixotropic agent and adhesive accelerant.Component mass ratio:
Description
[technical field]
The present invention relates to the technical field of tackiness agent, particularly the technical field of a kind of environmentally friendly seal gum and preparation method thereof.
[background technology]
Room curing silicon rubber is the novel organosilicon product of a kind of polymkeric substance based on the polydiorganosiloxane being with active end group starting the sixties in 20th century to grow up, its principal feature is without the need to using complicated mixing and contour machining equipment, at ambient temperature by means of the moisture in air or mix the elastomerics that can be sulfided into and have three-dimensional net structure with cross-linking agent component.Room curing silicon rubber can be divided into single-component and double-component cold curing silicon rubber by the physical aspect of product.One component room temperature cure silicone rubber is different according to the by product discharged in vulcanization crosslinking process, can be divided into depickling type, ketoxime removing type, dealcoholizing-type, de amide type and deacetone again.Current domestic construction seal gum market mainly based on silicone sealant, polymkeric substance based on hydroxy-end capped polydimethylsiloxane, dimethyl silicone oil, white oil is softening agent, add the filler such as white carbon black, nano-calcium carbonate, with organotin catalyzed, prepare room temperature sealing silicone sulfide glue.After this silicon copper seal gum life-time service, have oily matter and ooze out pollution stone material, concrete and finishing material.And this silicone adhesive needs to add organotin catalysts.Organotin has harm to environmental and human health impacts, may cause the endocrine regulation of human body and halobiontic destruction.European Union limits the use to organo-tin compound by European Union's organo-tin compound instruction in 2009.On January 1st, 2015 rises, dibutylated compound, by the article thoroughly forbidden for supplying to the public or mixture, wherein just includes single component and two-component room-temperature-vulcanized (RTV) sealing agent (RTV-1 and RTV-2 sealing agent) and tackiness agent.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, a kind of environmentally friendly seal gum and preparation method thereof is proposed, after can sealing glue solidifying being made, surface is unsticking completely, can not foreign material be adhered to, can not oil impregnate to affect buildings attractive in appearance, compensate for the defect of silicone sealant coating character difference, this seal gum containing organotin composition, can not impact environmental and human health impacts.
For achieving the above object, the present invention proposes a kind of environmentally friendly seal gum and preparation method thereof, the environmentally friendly seal gum of described one is made up of silane modified polyether, water-removal agent, photostabilizer, softening agent, thixotropic agent and adhesive accelerant.
Component mass ratio:
As preferably, described silane modified polyether take polyethers as main chain, and with Trimethoxy silane or methyl dimethoxysilane end-blocking, 25 DEG C time, viscosity is 10000 ~ 50000 centipoises.
As preferably, described water-removal agent is any one or two or more mixture in methyltrimethoxy silane, vinyltrimethoxy silane, vinyltriethoxysilane, tetramethoxy-silicane, ethyl polysilicate, poly-Union carbide A-162.
As preferably, described photostabilizer is sebacic acid two (1,2,2,6,6-pentamethyl--4-piperidines) ester and 1-(methyl)-8-(1,2,2,6,6-pentamethyl--4-piperidines) sebate, 2-hydroxyl-4-n-octyloxy-benzophenone, any one or two or more mixture in 2-(the pungent phenyl of 2-hydroxyl-5-)-benzotriazole.
As preferably, described softening agent is any one or two or more mixture in o-phthalic acid dibutyl ester, phthalic acid two different certain herbaceous plants with big flowers ester, diisononyl phthalate, dibutyl phthalate, diphenyl octyl phosphate, phosphate toluene diphenyl ester, polypropylene glycol.
As preferably, described thixotropic agent is any one or two or more mixture in aerosil, precipitated silica, organobentonite, hydrogenated castor oil, polyamide wax.
As preferably, described adhesive accelerant is any one or two or more mixture in γ-aminopropyl triethoxysilane, γ-aminopropyltrimethoxysilane, γ-(2,3-glycidoxy) propyl trimethoxy silicane, N-β-aminoethyl-γ-aminopropyltrimethoxysilane or anilinomethyl triethoxysilane, aminoethylaminopropyl methyl dimethoxysilane.
A kind of preparation method of environmentally friendly seal gum comprises the following steps:
Step 1: silane-terminated polyether polymkeric substance, softening agent, photostabilizer, water-removal agent are added high speed dispersor stirring at low speed 5-10min;
Step 2: thixotropic agent is added high speed dispersor, treats that thixotropic agent incorporates in rubber cement completely, is evacuated to below-0.092MPa, high speed dispersion 10-20min;
Step 3: add adhesive accelerant, is evacuated to below-0.092MPa, high-speed stirring 5-10min, obtains described environmentally friendly seal gum.
Compared with prior art, tool of the present invention has the following advantages:
1, the environmentally friendly seal gum prepared of the present invention is dyeable, compensate for the defect of silicone sealant coating character difference.2, this seal gum is not containing organotin composition, can not impact environmental and human health impacts.
3, after sealing glue solidifying, surface completely unsticking, can not adhere to foreign material, can not oil impregnate to affect buildings attractive in appearance.
Feature of the present invention and advantage will be described in detail by embodiment.
[embodiment]
Following examples are further elaborated the present invention, for showing use known for inventor preferred forms of the present invention to the technician of association area and industry, but do not limit content of the present invention and scope.Can modify to following embodiment and not exceed scope of the present invention.
Embodiment one:
50 parts, silane-terminated polyether polymkeric substance, plasticizer phthalic acid dinonyl 35 parts, photostabilizer Uv-2921 part, water-removal agent vinyltrimethoxy silane 1.5 parts are added high speed dispersor, rotating speed 400-500rpm, stir 5-10min, add thixotropic agent gas-phase silica 10 parts, treat that thixotropic agent incorporates in rubber cement completely, be evacuated to below-0.092MPa, rotating speed 900-1000rpm, high speed dispersion 10-20min; Add adhesive accelerant aminopropyl triethoxysilane 2.5 parts, be evacuated to below-0.092MPa, high-speed stirring 5min, obtain described environmentally friendly seal gum.
Embodiment two:
50 parts, silane-terminated polyether polymkeric substance, plasticizer phthalic acid dinonyl 32 parts, photostabilizer Uv-2921 part, water-removal agent vinyltrimethoxy silane 1.5 parts are added high speed dispersor, rotating speed 400-500rpm, stir 5-10min, add thixotropic agent gas-phase silica 13 parts, treat that thixotropic agent incorporates in rubber cement completely, be evacuated to below-0.092MPa, rotating speed 900-1000rpm, high speed dispersion 10-20min; Add adhesive accelerant aminopropyl triethoxysilane 2.5 parts, be evacuated to below-0.092MPa, high-speed stirring 5min, obtain described environmentally friendly seal gum.
Embodiment three:
50 parts, silane-terminated polyether polymkeric substance, plasticizer phthalic acid dinonyl 32 parts, photostabilizer Uv-2921.5 part, water-removal agent vinyltrimethoxy silane 1.5 parts are added high speed dispersor, rotating speed 400-500rpm, stir 5-10min, add thixotropic agent gas-phase silica 13 parts, treat that thixotropic agent incorporates in rubber cement completely, be evacuated to below-0.092MPa, rotating speed 900-1000rpm, high speed dispersion 10-20min; Add adhesive accelerant aminopropyl triethoxysilane 1 part, aminopropyl trimethoxysilane 1 part, is evacuated to below-0.092MPa, high-speed stirring 5min, obtains described environmentally friendly seal gum.
Embodiment four:
50 parts, silane-terminated polyether polymkeric substance, plasticizer phthalic acid dinonyl 31 parts, photostabilizer Uv-2921.5 part, water-removal agent vinyltrimethoxy silane 2 parts are added high speed dispersor, rotating speed 400-500rpm, stir 5-10min, add gas-phase silica 10 parts, polyamide wax 3.5 parts, be evacuated to below-0.092MPa, rotating speed 900-1000rpm, high speed dispersion 10-20min; Add adhesive accelerant aminopropyl triethoxysilane 1 part, aminopropyl trimethoxysilane 1 part, is evacuated to below-0.092MPa, high-speed stirring 5min, obtains described environmentally friendly seal gum.
Embodiment five:
65 parts, silane-terminated polyether polymkeric substance, plasticizer phthalic acid dinonyl 25 parts, photostabilizer Uv-2921 part, water-removal agent vinyltrimethoxy silane 2 parts are added high speed dispersor, rotating speed 400-500rpm, stir 5-10min, add gas-phase silica 5 parts, be evacuated to below-0.092MPa, rotating speed 900-1000rpm, high speed dispersion 10-20min; Add adhesive accelerant aminopropyl triethoxysilane 1 part, aminopropyl trimethoxysilane 1 part, is evacuated to below-0.092MPa, high-speed stirring 10min, obtains described environmentally friendly seal gum.
Test result
| Project | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Surface drying time, min | 15 | 15 | 20 | 20 | 33 |
| 24h curing depth mm | 4.5 | 4.2 | 4.4 | 3.8 | 5.2 |
| Tensile strength MPa | 1.21 | 1.54 | 1.48 | 1.32 | 0.73 |
| Elongation % | 430 | 480 | 470 | 332 | 281 |
| Hardness ShoreA | 34 | 37 | 37 | 35 | 39 |
| Sag | 0 | 0 | 0 | 0 | Trickling |
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (8)
1. environmentally friendly seal gum and preparation method thereof, is characterized in that: a kind of environmentally friendly seal gum is made up of silane modified polyether, water-removal agent, photostabilizer, softening agent, thixotropic agent and adhesive accelerant.Component mass ratio:
2. the environmentally friendly seal gum of one according to claim 1, is characterized in that: described silane modified polyether, take polyethers as main chain, and with Trimethoxy silane or methyl dimethoxysilane end-blocking, 25 DEG C time, viscosity is 10000 ~ 50000 centipoises.
3. the environmentally friendly seal gum of one according to claim 1, is characterized in that: described water-removal agent is any one or two or more mixture in methyltrimethoxy silane, vinyltrimethoxy silane, vinyltriethoxysilane, tetramethoxy-silicane, ethyl polysilicate, poly-Union carbide A-162.
4. the environmentally friendly seal gum of one according to claim 1, it is characterized in that: described photostabilizer is sebacic acid two (1,2,2,6,6-pentamethyl--4-piperidines) ester and 1-(methyl)-8-(1,2,2,6,6-pentamethyl--4-piperidines) sebate, 2-hydroxyl-4-n-octyloxy-benzophenone, any one or two or more mixture in 2-(the pungent phenyl of 2-hydroxyl-5-)-benzotriazole.
5. the environmentally friendly seal gum of one according to claim 1, is characterized in that: described softening agent is any one or two or more mixture in o-phthalic acid dibutyl ester, phthalic acid two different certain herbaceous plants with big flowers ester, diisononyl phthalate, dibutyl phthalate, diphenyl octyl phosphate, phosphate toluene diphenyl ester, polypropylene glycol.
6. the environmentally friendly seal gum of one according to claim 1, is characterized in that: described thixotropic agent is any one or two or more mixture in aerosil, precipitated silica, organobentonite, hydrogenated castor oil, polyamide wax.
7. the environmentally friendly seal gum of one according to claim 1, it is characterized in that: described adhesive accelerant is any one or two or more mixture in γ-aminopropyl triethoxysilane, γ-aminopropyltrimethoxysilane, γ-(2,3-glycidoxy) propyl trimethoxy silicane, N-β-aminoethyl-γ-aminopropyltrimethoxysilane or anilinomethyl triethoxysilane, aminoethylaminopropyl methyl dimethoxysilane.
8. environmentally friendly seal gum of one according to claims 1 to 7 and preparation method thereof, its preparation method is:
Step 1: silane-terminated polyether polymkeric substance, softening agent, photostabilizer, water-removal agent are added high speed dispersor stirring at low speed 5-10min;
Step 2: thixotropic agent is added high speed dispersor, treats that thixotropic agent incorporates in rubber cement completely, is evacuated to below-0.092MPa, high speed dispersion 10-20min;
Step 3: add adhesive accelerant, is evacuated to below-0.092MPa, high-speed stirring 5-10min, obtains described environmentally friendly seal gum.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510571166.3A CN105219336A (en) | 2015-09-09 | 2015-09-09 | A kind of environmentally friendly seal gum and preparation method thereof |
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| CN201510571166.3A CN105219336A (en) | 2015-09-09 | 2015-09-09 | A kind of environmentally friendly seal gum and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497486A (en) * | 2016-10-26 | 2017-03-15 | 三友（天津）高分子技术有限公司 | Low-temperature curable double-component silane modified polyether seal glue and preparation method thereof |
| CN106833321A (en) * | 2016-12-29 | 2017-06-13 | 浙江中天氟硅材料有限公司 | A kind of transparent mould proof silane modified polyether seal glue and preparation method thereof |
| CN112029464A (en) * | 2020-08-24 | 2020-12-04 | 郑州大学 | Cross dehydrogenation coupling reaction-based low-modulus MS sealant and preparation method thereof |
| CN112680164A (en) * | 2020-12-29 | 2021-04-20 | 苏州添易朗科技有限公司 | Preparation of multifunctional sealant for optical lamination |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555255A (en) * | 2013-09-29 | 2014-02-05 | 江苏中矿大正表面工程技术有限公司 | Elastic waterproof sealant, preparation method thereof, and roof waterproof structure formed by eastic waterproof sealant |
-
2015
- 2015-09-09 CN CN201510571166.3A patent/CN105219336A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555255A (en) * | 2013-09-29 | 2014-02-05 | 江苏中矿大正表面工程技术有限公司 | Elastic waterproof sealant, preparation method thereof, and roof waterproof structure formed by eastic waterproof sealant |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497486A (en) * | 2016-10-26 | 2017-03-15 | 三友（天津）高分子技术有限公司 | Low-temperature curable double-component silane modified polyether seal glue and preparation method thereof |
| CN106833321A (en) * | 2016-12-29 | 2017-06-13 | 浙江中天氟硅材料有限公司 | A kind of transparent mould proof silane modified polyether seal glue and preparation method thereof |
| CN106833321B (en) * | 2016-12-29 | 2019-04-16 | 中天东方氟硅材料有限公司 | Transparent mould proof silane modified polyether seal glue of one kind and preparation method thereof |
| CN112029464A (en) * | 2020-08-24 | 2020-12-04 | 郑州大学 | Cross dehydrogenation coupling reaction-based low-modulus MS sealant and preparation method thereof |
| CN112680164A (en) * | 2020-12-29 | 2021-04-20 | 苏州添易朗科技有限公司 | Preparation of multifunctional sealant for optical lamination |
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