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Hydroxymethyl silicone rubber leveling plasticizer as well as production process thereof

A production process and technology of silicone rubber, applied in the field of leveling plasticizer, can solve the problems of thickening, high volatile content, thickening of modified silicone oil, etc., to increase surface brightness and smoothness, and improve surface leveling. Effect

Inactive Publication Date: 2013-12-25
TONGXIANG RONGLI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The first silicone rubber leveling plasticizer used in the market is methyl silicone oil, because the phenomenon of oil leakage in methyl silicone oil is more serious during use, that is, the volatile content is higher; later, polyether modified silicone oil, amino modified silicone oil, etc. As a rubber leveling agent, but these modified silicone oils will thicken, that is, if the amount of leveling plasticizer added is large, it will thicken

Method used

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  • Hydroxymethyl silicone rubber leveling plasticizer as well as production process thereof
  • Hydroxymethyl silicone rubber leveling plasticizer as well as production process thereof
  • Hydroxymethyl silicone rubber leveling plasticizer as well as production process thereof

Examples

Experimental program
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Embodiment Construction

[0010] Select the main raw material as dimethylcyclosiloxane mixture (DMC) or octamethylcyclotetrasiloxane (D4) 1000g, add an appropriate amount of dimethyldisiloxane (determined according to the kinematic viscosity of the final product, If a leveling plasticizer with a kinematic viscosity of 100cs is obtained, add about 100g of dimethyldisiloxane), react with 30g of concentrated sulfuric acid at 20°C for 12h, neutralize with 48g of sodium bicarbonate, add 1000g of water to wash twice, add Tetramethylammonium hydroxide 2g, be warming up to 135 degrees centigrade, react 8h, heat up 180 degrees again, process low boiler with thin-film evaporator, cool down, finally obtain the molecular formula that yield is about 70% as

[0011] Hydroxymethyl silicone rubber leveling plasticizer, and 30% of dimethyl silicone oil and hydroxyl silicone oil.

[0012] Hydroxymethyl silicone rubber leveling plasticizer is a colorless and odorless transparent liquid, soluble in organic solvents and ...

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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 [0001] The invention relates to the field of chemical industry, in particular to a leveling plasticizer. Background technique [0002] The first silicone rubber leveling plasticizer used in the market is methyl silicone oil, because the phenomenon of oil leakage in methyl silicone oil is more serious during use, that is, the volatile content is higher; later, polyether modified silicone oil, amino modified silicone oil, etc. As a rubber leveling agent, but these modified silicone oils will thicken, that is, if the amount of leveling plasticizer added is large, it will thicken. Contents of the invention [0003] The purpose of the present invention is to provide a hydroxymethyl silicone rubber leveling plasticizer and its production process, which can replace the traditional methyl silicone oil, greatly improve the surface leveling of products, increase surface brightness and smoothness, and at the same time resist high temperature , low volatile content an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/06C08G77/16
Inventor 李松明李卓瑾
Owner TONGXIANG RONGLI CHEM
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