CN101760173A - One-component silicyl polyether sealing adhesive and preparation method thereof - Google Patents
One-component silicyl polyether sealing adhesive and preparation method thereof Download PDFInfo
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- CN101760173A CN101760173A CN200810236985A CN200810236985A CN101760173A CN 101760173 A CN101760173 A CN 101760173A CN 200810236985 A CN200810236985 A CN 200810236985A CN 200810236985 A CN200810236985 A CN 200810236985A CN 101760173 A CN101760173 A CN 101760173A
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Abstract
The invention relates to a one-component silicyl polyether sealing adhesive and a preparation method thereof, belonging to the technical field of one-component silicyl polyether sealing adhesive; the one-component silicyl polyether sealing adhesive mainly solves the problems that the existing silicyl-terminated polyether sealing adhesive has low tensile strength, and the tensile strength is only 0.5-3.5MPa and affects the application range; the one-component silicyl polyether sealing adhesive comprises the following ingredients: 20-40 parts of silicyl-terminated polyether, 5-20 parts of plasticizers, 30-50 parts of incremental fillers, 4-10 parts of reinforcing fillers, 0-20 parts of coloring agents, 0.1-5 parts of thixotropic agent, 0.01-1 part of ultraviolet absorber, 0.01-1 part of radical scavenger, 0.1-3 parts of moisture content scavenger, 0.1-5 parts of adhering accelerator and 0.1-3 parts of catalysts; the one-component silicyl polyether sealing adhesive has high tensile strength, the tensile strength can reach 5.12MPa, and the one-component silicyl polyether sealing adhesive is used for sealing adhesive of various materials and splicing, thereby having wide application on automobile making industry, railway transportation industry, container manufacturing industry, metal and nonmetallic processing industry, equipment manufacturing, air conditioner and ventilator devices.
Description
Technical field
The invention belongs to single component silyl-terminated polyether sealant technical field, be specifically related to a kind of high strength one-component silicyl polyether sealing adhesive and preparation method thereof.
Background technology
The silyl-terminated polyether seal gum claims organosilicon modified polyether seal gum, modified silicone seal gum and MS seal gum again.The silyl-terminated polyether seal gum has been inherited the advantage of silicone sealant and polyurethane sealant, show and have good weather-proof, weather resistance, high anti-deformational displacement ability, good cementability, covering with paint property, environment friendly, low contamination property and advantages such as low-viscosity and good application property.Application puts it at automobile industry, railway transportation, freight container manufacturing, metal and aspects such as nonmetal processing industry, device fabrication, air-conditioning and ventilation plant.
In general, the tensile strength of silyl-terminated polyether seal gum is less, and its tensile strength is 0.5～3.5MPa.Because the intensity of silyl-terminated polyether seal gum is less, influenced the range of application of this kind seal gum.It is just very necessary to develop the bigger product of a kind of intensity.
Summary of the invention
The present invention is directed to above-mentioned weak point and a kind of high strength one-component silicyl polyether sealing adhesive is provided, its tensile strength can increase substantially.
Further purpose of the present invention provides a kind of method for preparing above-mentioned one-component silicyl polyether sealing adhesive.
The technical solution of end-silicane-group seal gum of the present invention is: the ratio of weight and number of described composition is as follows:
Silyl-terminated polyether 20-40 part
Softening agent 5-20 part
Increment filler 30-50 part
Reinforced filling 4-10 part
Tinting material 0-20 part
Thixotropic agent 0.1-5 part
UV light absorber 0.01-1 part
Radical scavenger 0.01-1 part
Moisture scavenger 0.1-3 part
Adhesion promoter 0.1-5 part
Catalyzer 0.1-3 part
The said silyl-terminated polyether of technical solution is the polyoxytrimethylene ether that a kind of end group contains 2 hydrolyzable silane bases at least among the present invention.This hydrolyzable silane base is trimethoxysilyl or methyl dimethoxy oxygen base silyl etc.As the product S203H of KANEKA company, S303H, SAT400, SAT010 etc.
The said softening agent of technical solution is phthalate, aliphatic dibasic acid ester, polyvalent alcohol esters of gallic acid, phosphoric acid ester or its mixture among the present invention.As dioctyl phthalate (DOP), Di Iso Decyl Phthalate etc.
The said increment filler of technical solution is inorganics or its mixtures such as superfine calcium carbonate, surface treated Paris white, mica powder, silica powder, diatomite, kaolin, silicon powder among the present invention.
The said reinforced filling of technical solution is gas-phase silica, carbon black etc. or its mixture among the present invention.
The said tinting material of technical solution is titanium dioxide, carbon black, iron oxide black etc. or its mixture among the present invention.
The said thixotropic agent of technical solution is polyamide wax, hydrogenated castor oil, organobentonite, gas-phase silica, carbon black or its mixture among the present invention.
The said UV light absorber of technical solution is salicylate class, benzophenone class, benzotriazole category, group-substituted acrylonitrile, triazines or its mixture among the present invention.As the special company of cyanogen product: UV9, UV24, UV3638, UV2337, UV5365, UV5411, UV1084, UV1164 etc.; Ciba company product: Tinuvin P, Tinuvin1120, Tinuvin326, Tinuvin327, Tinuvin329, Tinuvin99-2, Tinuvin928 etc.
The said radical scavenger of technical solution is a piperidine derivative among the present invention.As the special company of cyanogen product: UV3346, UV3529, UV3853, UV2908, UV3581, UV3853s etc.; Ciba company product: Tinuvin770, Tinuvin770DF, Tinuvin292, Tinuvin5050, Tinuvin5151, Tinuvin5060 etc.
The said moisture scavenger of technical solution is easily be hydrolyzed reaction silane coupling agent, oxazole alkanes among the present invention.As vinyltrimethoxy silane etc.
The said adhesion promoter of technical solution is silane coupling agent and derivative or its mixture among the present invention.As N-(β-aminoethyl)-γ-An Bingjisanjiayangjiguiwan, γ-glycidyl ether oxygen propyl trimethoxy silicane, γ-An Bingjisanjiayangjiguiwan, gamma-methyl allyl acyloxypropyl trimethoxysilane, γ-Qiu Jibingjisanjiayangjiguiwan etc.
The said catalyzer of technical solution is the composite catalyst of fatty acid salt, titanate ester and lipid acid tin compounds such as metallic tin, lead, iron and alkyl amine compound among the present invention.As composite catalyst of dibutyl tin laurate, dibutyltin diacetate, two (levulinic ketone ester) dibutyl tin, phthalic acid dibutyl tin, stannous octoate and n-Laurylamine etc.
The making method of the said one-component silicyl polyether sealing adhesive of technical solution among the present invention, it is characterized in that adding successively in twin shaft planetary power stirrer still silyl-terminated polyether, softening agent, reinforced filling mixes and stirred 20～30 minutes, add thixotropic agent, UV light absorber, radical scavenger, tinting material increment filler again and mix and stirred 20～30 minutes, under 110～130 ℃ and vacuum state, mix and stirred 1～3 hour.Be cooled to below 50 ℃, add moisture scavenger, adhesion promoter and catalyzer, mix under vacuum state and stirred 20～30 minutes, the even paste of gained is one-component silicyl polyether sealing adhesive.
The present invention can make the intensity of single-component end-silicane-group seal gum be greatly enhanced by the reinforced filling of 4～10 parts of addings.When the amount of reinforced filling gas-phase silica was 6.83 parts, tensile strength reached 5.12MPa.
Adopt 110～130 ℃ and the following operation that stirred 1～3 hour of mixing of vacuum state on the preparation method of the present invention, guaranteed the preparation of seal gum.
Adopting the single-component end-silicane-group seal gum of the inventive method preparation is a kind of high-intensity single-component end-silicane-group seal gum, is used for the seal gum of various material and bonding.Has application widely at automobile industry, railway transportation, freight container manufacturing, metal and aspects such as nonmetal processing industry, device fabrication, air-conditioning and ventilation plant.
Now with reference to embodiment and be used for correlated comparative example and more fully the present invention made description.Unless add explanation in addition, otherwise " part " among the embodiment all is meant weight part.
Embodiment
The following example and comparative example will be introduced the present invention more in detail, but the present invention is not limited to this.
The seal gum that following evaluation obtains in embodiment and Comparative Examples, the result of embodiment and Comparative Examples is as shown in table 1.
(1) tensile strength, elongation
Press the mensuration of GB/T528-1998 vulcanized rubber and thermoplastic elastomer tensile stress-strain performance.
(2) condition of cure
23 ℃ of 50%RH * 3 day+50 ℃ * 4 days
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | |
| ??SAT400 | ??34.13 | ??35.03 | ??- | ??- | ??34.13 |
| ??S303H | ??- | ??- | ??34.23 | ??34.23 | ??- |
| Di Iso Decyl Phthalate | ??13.65 | ??14.01 | ??14.01 | ??14.01 | ??13.65 |
| Lime carbonate | ??34.13 | ??34.03 | ??34.13 | ??39.37 | ??40.96 |
| Titanium dioxide | ??6.83 | ??7.01 | ??6.02 | ??5.99 | ??6.83 |
| Polyamide wax | ??0.68 | ??0.70 | ??0.70 | ??0.75 | ??0.68 |
| ??Tinuvin326 | ??0.34 | ??0.35 | ??0.35 | ??0.3 | ??0.34 |
| ??Tinuvin770 | ??0.34 | ??0.35 | ??0.35 | ??0.3 | ??0.34 |
| Gas-phase silica | ??6.83 | ??5.38 | ??7.01 | ??1.87 | |
| Vinyltrimethoxy silane | ??1.02 | ??1.05 | ??1.07 | ??1.07 | ??1.02 |
| N-(β-aminoethyl)-γ-An Bingjisanjiayangjiguiwan | ??1.71 | ??1.75 | ??1.78 | ??1.76 | ??1.71 |
| Dibutyl tin laurate | ??0.34 | ??0.35 | ??0.35 | ??0.35 | ??0.34 |
| Amount to | ??100 | ??100 | ??100 | ??100 | ??100 |
| Tensile strength (MPa) | ??5.12 | ??4.53 | ??4.23 | ??2.47 | ??3.14 |
| Elongation at break (%) | ??300 | ??233 | ??204 | ??583 | ??257.4 |
Claims (13)
1. one-component silicyl polyether sealing adhesive, it is characterized in that: the ratio of weight and number of described composition is as follows:
Silyl-terminated polyether 20-40 part;
Softening agent 5-20 part;
Increment filler 30-50 part;
Reinforced filling 4-10 part;
Tinting material 0-20 part;
Thixotropic agent 0.1-5 part;
UV light absorber 0.01-1 part;
Radical scavenger 0.01-1 part;
Moisture scavenger 0.1-3 part;
Adhesion promoter 0.1-5 part;
Catalyzer 0.1-3 part.
2. a kind of one-component silicyl polyether sealing adhesive according to claim 1, it is characterized in that: described silyl-terminated polyether is the polyoxytrimethylene ether that a kind of end group contains 2 hydrolyzable silane bases at least, and this hydrolyzable silane base is trimethoxysilyl or methyl dimethoxy oxygen base silyl.
3. a kind of one-component silicyl polyether sealing adhesive according to claim 1 is characterized in that: described softening agent is phthalate, aliphatic dibasic acid ester, polyvalent alcohol esters of gallic acid, phosphoric acid ester or its mixture.
4. a kind of one-component silicyl polyether sealing adhesive according to claim 1 is characterized in that: described increment filler is inorganics or its mixtures such as superfine calcium carbonate, surface treated Paris white, mica powder, silica powder, diatomite, kaolin, silicon powder.
5. a kind of one-component silicyl polyether sealing adhesive according to claim 1 is characterized in that: described reinforced filling is gas-phase silica, carbon black etc. or its mixture.
6. a kind of one-component silicyl polyether sealing adhesive according to claim 1 is characterized in that: described tinting material is titanium dioxide, carbon black, iron oxide black etc. or its mixture.
7. a kind of one-component silicyl polyether sealing adhesive according to claim 1 is characterized in that: described thixotropic agent is polyamide wax, hydrogenated castor oil, organobentonite, gas-phase silica, carbon black or its mixture.
8. a kind of one-component silicyl polyether sealing adhesive according to claim 1 is characterized in that: described UV light absorber is salicylate class, benzophenone class, benzotriazole category, group-substituted acrylonitrile, triazines or its mixture.
9. seal gum according to claim 1 is characterized in that: described radical scavenger is a piperidine derivative.
10. a kind of one-component silicyl polyether sealing adhesive according to claim 1 is characterized in that: described moisture scavenger is easily be hydrolyzed reaction silane coupling agent, oxazole alkanes.
11. a kind of one-component silicyl polyether sealing adhesive according to claim 1 is characterized in that: described adhesion promoter is silane coupling agent and derivative or its mixture.
12. a kind of one-component silicyl polyether sealing adhesive according to claim 1 is characterized in that: described catalyzer is the composite catalyst of metallic tin, lead, iron fatty acid salt, titanate ester and lipid acid tin compound and alkyl amine compound.
13. a making method that is used to prepare the described a kind of one-component silicyl polyether sealing adhesive of claim 1 is characterized in that: in twin shaft planetary power stirrer still, add silyl-terminated polyether, softening agent, reinforced filling successively and mix and stirred 20～30 minutes; Adding thixotropic agent, UV light absorber, radical scavenger, tinting material increment filler again mixes and stirred 20～30 minutes; Under 110～130 ℃ and vacuum state, mix and stirred 1～3 hour; Be cooled to below 50 ℃, add moisture scavenger, adhesion promoter and catalyzer, mix under vacuum state and stirred 20～30 minutes, the even paste of gained is one-component silicyl polyether sealing adhesive.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810236985A CN101760173A (en) | 2008-12-24 | 2008-12-24 | One-component silicyl polyether sealing adhesive and preparation method thereof |
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| CN200810236985A CN101760173A (en) | 2008-12-24 | 2008-12-24 | One-component silicyl polyether sealing adhesive and preparation method thereof |
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| CN102102004A (en) * | 2010-12-28 | 2011-06-22 | 东莞市普赛达密封粘胶有限公司 | Nano-silica fluid modified polyurethane sealant with silyl end group and preparation method thereof |
| CN102206478A (en) * | 2011-04-22 | 2011-10-05 | 东莞市普赛达密封粘胶有限公司 | Environment-friendly silyl-terminated polyether sealant and preparation method thereof |
| CN102816549A (en) * | 2012-07-10 | 2012-12-12 | 华南理工大学 | Silyl-terminated polyether modified polyurethane adhesive, its preparation method and application thereof |
| CN104039910A (en) * | 2012-01-06 | 2014-09-10 | Lg化学株式会社 | Encapsulation film |
| CN104059592A (en) * | 2014-06-19 | 2014-09-24 | 江苏天顺新材料有限公司 | Single-component silane modified polyether sealant and preparation method thereof |
| CN104087238A (en) * | 2014-06-18 | 2014-10-08 | 广州新展化工新材料有限公司 | Antifouling sealing material and preparation method thereof |
| CN104610900A (en) * | 2015-02-03 | 2015-05-13 | 广东新展化工新材料有限公司 | Nail-free glue and preparation method thereof |
| CN104629666A (en) * | 2015-02-03 | 2015-05-20 | 广东新展化工新材料有限公司 | Silylation-terminated polyether adhesive and preparation method thereof |
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- 2008-12-24 CN CN200810236985A patent/CN101760173A/en not_active Withdrawn
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| CN109294505A (en) * | 2018-09-12 | 2019-02-01 | 上海东大化学有限公司 | A kind of high-strength silane modified polyether seal glue and preparation method thereof |
| CN110564351A (en) * | 2019-09-03 | 2019-12-13 | 苏州雅能新材料科技有限公司 | Silane modified polyether bonding sealant |
| WO2021232819A1 (en) * | 2020-05-21 | 2021-11-25 | 广州市白云化工实业有限公司 | Single-component silane-modified polyether sealant for prefabricated buildings and preparation method therefor |
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Open date: 20100630 |