CN106854366A - A kind of preparation method for storing stabilization dealcoholized type one-pack RTV silicone rubber - Google Patents
A kind of preparation method for storing stabilization dealcoholized type one-pack RTV silicone rubber Download PDFInfo
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- CN106854366A CN106854366A CN201510902107.XA CN201510902107A CN106854366A CN 106854366 A CN106854366 A CN 106854366A CN 201510902107 A CN201510902107 A CN 201510902107A CN 106854366 A CN106854366 A CN 106854366A
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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
- C08L83/00—Compositions of 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; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
- C08L83/06—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
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- Chemical Kinetics & Catalysis (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
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Abstract
A kind of preparation method of storage stabilization dealcoholized type one-pack RTV silicone rubber that the present invention is provided, it is divided into and weighs raw material, stir for the first time, stir for second, the five big steps such as third time stirring and collection, wherein raw material mainly includes dialkyl polydimethylsiloxane 100-200 parts, crosslinking agent 10-20 parts, titanium dioxide 8-12 parts, nanometer calcium 50-70 parts, white carbon 10-30 parts, thickener 15-25 parts, auxiliary agent 3-5 parts and catalyst 6-18 parts, configuration is convenient, it is simple to operate, cost is relatively low, the bin stability of dealcoholized type one-pack RTV silicone rubber can be significantly improved, environmental protection, economic and reliable, its curability in storage is set not decline, consumer demand can more be met.
Description
Technical field
The present invention relates to RTV silicon rubber technical fields, more particularly to a kind of preparation method for storing stabilization dealcoholized type one-pack RTV silicone rubber.
Background technology
RTV silica gel is a kind of room temperature vulcanized sili cone rubber, the silicon rubber that can vulcanize at room temperature.Hydroxyl, vinyl isoreactivity group are contained in usual its strand two ends, and molecular weight is than relatively low.There are two kinds of single-component room-temperature vulcanized silicone rubber and two-component room-temperature-vulcanized silicone rubber.A kind of novel organosilicon elastomer that RTV room temperature vulcanized silicone rubbers come out as the sixties in last century,, with the low polysiloxanes of viscosity as polymer, by contacting with moisture, mixed with crosslinking agent can vulcanization elastomer-forming at room temperature for it.When one-pack RTV silicone rubber is used as adhesive, the performance requirement after vulcanization be mainly it is good, corrosion-free to the cementability of contacted base material, while having good physical and mechanical properties, electrical property and anti-flammability.Dealcoholized type one-pack RTV silicone rubber have nonirritant tart flavour, to metal object corrosivity, in sulfidation without cracking phenomena, cementability is good, good physical property and electrical property can be kept in severe rugged environment, is research and the application trend of one-pack RTV silicone rubber.But the curability of dealcoholized type one-pack RTV silicone rubber can decline in storage, even lose, and can not meet consumer demand.
The content of the invention
It is an object of the invention to provide a kind of preparation method for storing stabilization dealcoholized type one-pack RTV silicone rubber, the curability for solving existing dealcoholized type one-pack RTV silicone rubber can decline in storage, even lose, and can not meet the problem of consumer demand.
The purpose of the present invention can be achieved through the following technical solutions；
A kind of preparation method for storing stabilization dealcoholized type one-pack RTV silicone rubber, its preparation method is as follows：
（1）Weigh raw material as follows：Dialkyl polydimethylsiloxane 100-200 parts, crosslinking agent 10-20 parts, titanium dioxide 8-12 parts, nanometer calcium 50-70 parts, white carbon 10-30 parts, thickener 15-25 parts, auxiliary agent 3-5 parts and catalyst 6-18 parts；
（2）Stir for the first time：First to dialkyl polydimethylsiloxane stirring 1-3min is added in the planetary stirrer of vacuum, after adding crosslinking agent stirring 2-5min, add thickener to continue to stir 3-6min, be eventually adding auxiliary agent stirring 2-5min, obtain mixed liquor A；
（3）Stir for second：To titanium dioxide, nanometer calcium and white carbon is sequentially added in mixed liquor A, 20-30min is stirred, obtain mixed liquid B；
（4）Third time is stirred：To catalyst is added in mixed liquid B, 10-20min is stirred, obtain mixed liquor C；
（5）Collect：Resulting mixed liquor C is fitted into pipe.
A kind of preparation method of above-mentioned storage stabilization dealcoholized type one-pack RTV silicone rubber, wherein, described crosslinking agent is that MTMS, vinyltrimethoxy silane are mixed together, and described MTMS, the weight ratio of vinyltrimethoxy silane are 1：1.
A kind of preparation method of above-mentioned storage stabilization dealcoholized type one-pack RTV silicone rubber, wherein, described thickener is dimethicone.
A kind of preparation method of above-mentioned storage stabilization dealcoholized type one-pack RTV silicone rubber, wherein, described auxiliary agent is that HMDS, triethyl group silicoacetic acid butyl ester are mixed together, and described HMDS, the part by weight of triethyl group silicoacetic acid butyl ester are 2：1.
A kind of preparation method of above-mentioned storage stabilization dealcoholized type one-pack RTV silicone rubber, wherein, described catalyst is titanate esters.
The beneficial effect of this programme：
A kind of preparation method of storage stabilization dealcoholized type one-pack RTV silicone rubber that the present invention is provided, it is divided into and weighs raw material, stir for the first time, stir for second, the five big steps such as third time stirring and collection, wherein raw material mainly includes dialkyl polydimethylsiloxane 100-200 parts, crosslinking agent 10-20 parts, titanium dioxide 8-12 parts, nanometer calcium 50-70 parts, white carbon 10-30 parts, thickener 15-25 parts, auxiliary agent 3-5 parts and catalyst 6-18 parts, configuration is convenient, it is simple to operate, cost is relatively low, the bin stability of dealcoholized type one-pack RTV silicone rubber can be significantly improved, environmental protection, economic and reliable, its curability in storage is set not decline, consumer demand can more be met.
Specific embodiment
Embodiment 1：A kind of preparation method for storing stabilization dealcoholized type one-pack RTV silicone rubber, its preparation method is as follows：
（1）Weigh raw material as follows：6 parts of 100 parts of dialkyl polydimethylsiloxane, 10 parts of crosslinking agent, 8 parts of titanium dioxide, 50 parts of nanometer calcium, 10 parts of white carbon, 15 parts of thickener, 3 parts of auxiliary agent and catalyst；
（2）Stir for the first time：First to dialkyl polydimethylsiloxane stirring 1min is added in the planetary stirrer of vacuum, after adding crosslinking agent stirring 2min, add thickener to continue to stir 3min, be eventually adding auxiliary agent stirring 2min, obtain mixed liquor A；
（3）Stir for second：To titanium dioxide, nanometer calcium and white carbon is sequentially added in mixed liquor A, 20min is stirred, obtain mixed liquid B；
（4）Third time is stirred：To catalyst is added in mixed liquid B, 10min is stirred, obtain mixed liquor C；
（5）Collect：Resulting mixed liquor C is fitted into pipe.
Embodiment 2：A kind of preparation method for storing stabilization dealcoholized type one-pack RTV silicone rubber, its preparation method is as follows：
（1）Weigh raw material as follows：12 parts of 150 parts of dialkyl polydimethylsiloxane, 15 parts of crosslinking agent, 10 parts of titanium dioxide, 60 parts of nanometer calcium, 20 parts of white carbon, 20 parts of thickener, 4 parts of auxiliary agent and catalyst；
（2）Stir for the first time：First to dialkyl polydimethylsiloxane stirring 2min is added in the planetary stirrer of vacuum, after adding crosslinking agent stirring 3min, add thickener to continue to stir 4min, be eventually adding auxiliary agent stirring 4min, obtain mixed liquor A；
（3）Stir for second：To titanium dioxide, nanometer calcium and white carbon is sequentially added in mixed liquor A, 25min is stirred, obtain mixed liquid B；
（4）Third time is stirred：To catalyst is added in mixed liquid B, 15min is stirred, obtain mixed liquor C；
（5）Collect：Resulting mixed liquor C is fitted into pipe.
Embodiment 3：A kind of preparation method for storing stabilization dealcoholized type one-pack RTV silicone rubber, its preparation method is as follows：
（1）Weigh raw material as follows：18 parts of 200 parts of dialkyl polydimethylsiloxane, 20 parts of crosslinking agent, 12 parts of titanium dioxide, 70 parts of nanometer calcium, 30 parts of white carbon, 25 parts of thickener, 5 parts of auxiliary agent and catalyst；
（2）Stir for the first time：First to dialkyl polydimethylsiloxane stirring 3min is added in the planetary stirrer of vacuum, after adding crosslinking agent stirring 5min, add thickener to continue to stir 6min, be eventually adding auxiliary agent stirring 5min, obtain mixed liquor A；
（3）Stir for second：To titanium dioxide, nanometer calcium and white carbon is sequentially added in mixed liquor A, 30min is stirred, obtain mixed liquid B；
（4）Third time is stirred：To catalyst is added in mixed liquid B, 20min is stirred, obtain mixed liquor C；
（5）Collect：Resulting mixed liquor C is fitted into pipe.
A kind of preparation method of storage stabilization dealcoholized type one-pack RTV silicone rubber that the present invention is provided, it is divided into and weighs raw material, stir for the first time, stir for second, the five big steps such as third time stirring and collection, wherein raw material mainly includes dialkyl polydimethylsiloxane 100-200 parts, crosslinking agent 10-20 parts, titanium dioxide 8-12 parts, nanometer calcium 50-70 parts, white carbon 10-30 parts, thickener 15-25 parts, auxiliary agent 3-5 parts and catalyst 6-18 parts, configuration is convenient, it is simple to operate, cost is relatively low, the bin stability of dealcoholized type one-pack RTV silicone rubber can be significantly improved, environmental protection, economic and reliable, its curability in storage is set not decline, consumer demand can more be met.
The above; the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; the change or replacement that can be readily occurred in, should all cover within the scope of the present invention.Therefore, protection scope of the present invention should be defined by the protection domain of claims.
Claims (5)
1. it is a kind of to store the preparation method for stablizing dealcoholized type one-pack RTV silicone rubber, it is characterized by, its preparation method is as follows：
（1）Weigh raw material as follows：Dialkyl polydimethylsiloxane 100-200 parts, crosslinking agent 10-20 parts, titanium dioxide 8-12 parts, nanometer calcium 50-70 parts, white carbon 10-30 parts, thickener 15-25 parts, auxiliary agent 3-5 parts and catalyst 6-18 parts；
（2）Stir for the first time：First to dialkyl polydimethylsiloxane stirring 1-3min is added in the planetary stirrer of vacuum, after adding crosslinking agent stirring 2-5min, add thickener to continue to stir 3-6min, be eventually adding auxiliary agent stirring 2-5min, obtain mixed liquor A；
（3）Stir for second：To titanium dioxide, nanometer calcium and white carbon is sequentially added in mixed liquor A, 20-30min is stirred, obtain mixed liquid B；
（4）Third time is stirred：To catalyst is added in mixed liquid B, 10-20min is stirred, obtain mixed liquor C；
（5）Collect：Resulting mixed liquor C is fitted into pipe.
2. the preparation method of dealcoholized type one-pack RTV silicone rubber is stablized in a kind of storage as claimed in claim 1, it is characterized by, described crosslinking agent is that MTMS, vinyltrimethoxy silane are mixed together, and described MTMS, the weight ratio of vinyltrimethoxy silane are 1：1.
3. the preparation method of dealcoholized type one-pack RTV silicone rubber is stablized in a kind of storage as claimed in claim 1, it is characterized by, described thickener is dimethicone.
4. the preparation method of dealcoholized type one-pack RTV silicone rubber is stablized in a kind of storage as claimed in claim 1, it is characterized by, described auxiliary agent is that HMDS, triethyl group silicoacetic acid butyl ester are mixed together, and described HMDS, the part by weight of triethyl group silicoacetic acid butyl ester are 2：1.
5. the preparation method of dealcoholized type one-pack RTV silicone rubber is stablized in a kind of storage as claimed in claim 1, it is characterized by, described catalyst is titanate esters.
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| CN201510902107.XA CN106854366A (en) | 2015-12-09 | 2015-12-09 | A kind of preparation method for storing stabilization dealcoholized type one-pack RTV silicone rubber |
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| CN201510902107.XA CN106854366A (en) | 2015-12-09 | 2015-12-09 | A kind of preparation method for storing stabilization dealcoholized type one-pack RTV silicone rubber |
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| CN106854366A true CN106854366A (en) | 2017-06-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143447A (en) * | 2020-09-10 | 2020-12-29 | 江苏天辰新材料股份有限公司 | Dealcoholized single-component sealant with storage stability and preparation method thereof |
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|---|---|---|---|---|
| CN101173101A (en) * | 2006-10-30 | 2008-05-07 | 比亚迪股份有限公司 | Single-component ketoxime removing type room temperature vulcanized silicone rubber composition |
| CN103361023A (en) * | 2013-08-02 | 2013-10-23 | 东莞兆舜有机硅新材料科技有限公司 | Transparent dealcoholized single-component RTV silicone rubber sealant and preparation method thereof |
| CN103642451A (en) * | 2013-12-12 | 2014-03-19 | 苏州天山新材料技术有限公司 | Room-temperature vulcanized one-component dealcoholized silicone rubber sealant and preparation method thereof |
-
2015
- 2015-12-09 CN CN201510902107.XA patent/CN106854366A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173101A (en) * | 2006-10-30 | 2008-05-07 | 比亚迪股份有限公司 | Single-component ketoxime removing type room temperature vulcanized silicone rubber composition |
| CN103361023A (en) * | 2013-08-02 | 2013-10-23 | 东莞兆舜有机硅新材料科技有限公司 | Transparent dealcoholized single-component RTV silicone rubber sealant and preparation method thereof |
| CN103642451A (en) * | 2013-12-12 | 2014-03-19 | 苏州天山新材料技术有限公司 | Room-temperature vulcanized one-component dealcoholized silicone rubber sealant and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 《井陉县志》编纂委员会: "《井陉县志》", 31 May 2006, 新华出版社 * |
| 林孔勇等: "《橡胶工业手册（第六分册）》", 30 June 1995, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143447A (en) * | 2020-09-10 | 2020-12-29 | 江苏天辰新材料股份有限公司 | Dealcoholized single-component sealant with storage stability and preparation method thereof |
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Application publication date: 20170616 |