CN103467994A - Hydroxymethyl silicone rubber leveling plasticizer as well as production process thereof - Google Patents
Hydroxymethyl silicone rubber leveling plasticizer as well as production process thereof Download PDFInfo
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- CN103467994A CN103467994A CN2013104332020A CN201310433202A CN103467994A CN 103467994 A CN103467994 A CN 103467994A CN 2013104332020 A CN2013104332020 A CN 2013104332020A CN 201310433202 A CN201310433202 A CN 201310433202A CN 103467994 A CN103467994 A CN 103467994A
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- plasticizer
- silicone rubber
- leveling
- methylol
- softening agent
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Abstract
The invention discloses a hydroxymethyl silicone rubber leveling plasticizer, the molecular formula of which is shown in the specification. By means of special structural control and termination, the hydroxymethyl silicone rubber leveling plasticizer is smooth in surface and is waterproof, anti-sticking and the like by means of structural control and match of a rubber compound. Meanwhile, the plasticizer can greatly improve the surface leveling property of a product and increase the surface brightness and smoothness. The plasticizer can be used on industrial rubber to adjust hand feel and softness of a main body, is not oily and sticky, and can replace conventional methylsilicone oil. The hydroxymethyl silicone rubber leveling plasticizer is a colorless and tasteless transparent liquid which can be dissolved in organic solvents as well as various silicon oil and silica gel.
Description
Technical field
The present invention relates to chemical field, be specifically related to a kind of levelling softening agent.
Background technology
The silicon rubber levelling softening agent used on market is methyl-silicone oil, and due to methyl-silicone oil, in use the bleed phenomenon is more serious, and fugitive constituent is higher; Adopted afterwards polyether modified silicon oil, amino-modified silicone oil etc. as the rubber flow agent, but these modified silicon oils there will be the thickening phenomenon, the words that the levelling plasticising dosage added is large can thickening.
Summary of the invention
The purpose of this invention is to provide a kind of methylol silicon rubber levelling softening agent and production technique thereof, it can replace traditional methyl-silicone oil, greatly improves the product surface levelling property, increases surface brightness and slippery, and simultaneously high temperature resistant, fugitive constituent is low, and viscosity is lower.
Technical scheme of the present invention:
A kind of methylol silicon rubber levelling softening agent, its molecular formula is:
A kind of production technique of methylol silicon rubber levelling softening agent, getting body material is dimethyl ring siloxane mixture DMC or octamethylcyclotetrasiloxane D4, add dimethyl sily oxide, the vitriol oil at temperature 16-25 degree centigrade of reaction 10-13h, with the sodium bicarbonate neutralization, then wash secondary, add Tetramethylammonium hydroxide, be warming up to 110-150 degree centigrade of reaction, then be warming up to the 160-190 degree, with thin-film evaporator, process low-boiling-point substance, cooling finally obtains molecular formula and is:
Methylol levelling softening agent of the present invention utilizes its specific structure control and end-blocking to form smooth surface, rubber unvulcanizate structure control and coordinate waterproof, antiseized etc.It can improve the product surface levelling property greatly simultaneously, increases surface brightness and slippery.Can be used on industrial glue, regulate main body feel, softness, do not go rancid, tack-free, replace traditional methyl-silicone oil.Methylol silicon rubber levelling softening agent is the transparent liquid of colorless and odorless, can be dissolved in organic solvent and various silicone oil, silica gel.
Embodiment
Choosing body material is dimethyl ring siloxane mixture (DMC) or octamethylcyclotetrasiloxane (D4) 1000g, add the dimethyl sily oxide (to determine according to the kinematic viscosity of the product finally obtained in right amount, the levelling softening agent that kinematic viscosity is 100cs as obtained adds the dimethyl sily oxide of about 100g), 20 degrees centigrade of reaction 12h of vitriol oil 30g temperature, with sodium bicarbonate 48g, neutralize, add water 1000g washing secondary, add Tetramethylammonium hydroxide 2g, be warming up to 135 degrees centigrade, reaction 8h, 180 degree again heat up, process low-boiling-point substance with thin-film evaporator, cooling, finally obtaining yield is about 70% molecular formula and is
Methylol silicon rubber levelling softening agent is the transparent liquid of colorless and odorless, can be dissolved in organic solvent and various silicone oil, silica gel.
Table 1-1 methylol flow agent of the present invention (Q1) and existing organosilicon flow agent (Q2)
Technical indicator relatively
By table 1-1, we can obviously see the excellent properties index of methylol silicon rubber levelling softening agent of the present invention, and fugitive constituent is low, illustrates that it is without the bleed phenomenon; Kinematic viscosity is low, and the wide ranges of its addition is described, many interpolations not there will be the thickening phenomenon at all; Flash-point is high, illustrates that product is high temperature resistant, nonflammable.The flash-point of existing polyether-modified flow agent is low, and some more indicates it is inflammable substance.
Claims (2)
1. a methylol silicon rubber levelling softening agent, its molecular formula is:
2. the production technique of a methylol silicon rubber levelling softening agent, getting body material is dimethyl ring siloxane mixture DMC or octamethylcyclotetrasiloxane D4, add dimethyl sily oxide, the vitriol oil at temperature 16-25 degree centigrade of reaction 10-13h, with the sodium bicarbonate neutralization, then wash secondary, add Tetramethylammonium hydroxide, be warming up to 110-150 degree centigrade of reaction, then be warming up to the 160-190 degree, with thin-film evaporator, process low-boiling-point substance, cooling finally obtains molecular formula and is:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104332020A CN103467994A (en) | 2013-09-22 | 2013-09-22 | Hydroxymethyl silicone rubber leveling plasticizer as well as production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104332020A CN103467994A (en) | 2013-09-22 | 2013-09-22 | Hydroxymethyl silicone rubber leveling plasticizer as well as production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103467994A true CN103467994A (en) | 2013-12-25 |
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Family Applications (1)
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| CN2013104332020A Pending CN103467994A (en) | 2013-09-22 | 2013-09-22 | Hydroxymethyl silicone rubber leveling plasticizer as well as production process thereof |
Country Status (1)
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| CN (1) | CN103467994A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5223595A (en) * | 1991-05-16 | 1993-06-29 | Wacker-Chemie Gmbh | Process for preparing organo(poly)siloxanes |
| US5698654A (en) * | 1996-07-30 | 1997-12-16 | General Electric Company | Process for preparing hydrogen siloxane copolymers |
| CN1752146A (en) * | 2004-09-23 | 2006-03-29 | 瓦克化学有限公司 | Crosslinkable compositions based on organosilicon compounds |
| CN103214895A (en) * | 2013-04-26 | 2013-07-24 | 广东省石油化工研究院 | Organic silicon coating leveling agent and preparation method thereof |
| CN103483526A (en) * | 2013-08-20 | 2014-01-01 | 中科院广州化学有限公司 | Organic silicon graft modification polyester type polyurethane prepolymer and preparation and application thereof |
-
2013
- 2013-09-22 CN CN2013104332020A patent/CN103467994A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5223595A (en) * | 1991-05-16 | 1993-06-29 | Wacker-Chemie Gmbh | Process for preparing organo(poly)siloxanes |
| US5698654A (en) * | 1996-07-30 | 1997-12-16 | General Electric Company | Process for preparing hydrogen siloxane copolymers |
| CN1752146A (en) * | 2004-09-23 | 2006-03-29 | 瓦克化学有限公司 | Crosslinkable compositions based on organosilicon compounds |
| CN103214895A (en) * | 2013-04-26 | 2013-07-24 | 广东省石油化工研究院 | Organic silicon coating leveling agent and preparation method thereof |
| CN103483526A (en) * | 2013-08-20 | 2014-01-01 | 中科院广州化学有限公司 | Organic silicon graft modification polyester type polyurethane prepolymer and preparation and application thereof |
Non-Patent Citations (3)
| Title |
|---|
| 张秀梅: "流平剂", 《涂料工业》 * |
| 李光亮: "《有机硅高分子化学》", 31 March 1998 * |
| 邓浩强等: "有机硅流平剂的制备及性能表征", 《仲恺农业工程学院学报》 * |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131225 |
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| RJ01 | Rejection of invention patent application after publication |