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Matt silicone rubber for silk screen printing and preparation method thereof

A silicone rubber and matte technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of insufficient matte effect of matting powder, peeling off of silicone rubber silk screen layer, poor durability of matte effect, etc. , to achieve the effects of increasing the matte effect, improving the matte effect, and improving the matte effect

Active Publication Date: 2021-11-26
东莞天绘新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Usually, in order to achieve the matte effect of liquid silicone, matting powder is added to achieve the matte effect of silicone rubber, but the matting effect of matting powder is insufficient, and the matte surface after silk printing has poor wear resistance, and the silk screen layer of silicone rubber is easy to peel off from the substrate. Shedding, resulting in poor persistence of the matte finish

Method used

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  • Matt silicone rubber for silk screen printing and preparation method thereof
  • Matt silicone rubber for silk screen printing and preparation method thereof
  • Matt silicone rubber for silk screen printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0074] A preparation of modified fumed silica, comprising the steps of:

[0075] S1: Weigh 60g of fumed silica, put it into an oven with a set temperature of 50°C, and dry it for 12 hours to obtain dry fumed silica for use; weigh 10g of hexamethyldisilazane and 120g of toluene, Put it into a three-necked flask with a reflux condenser installed in an oil bath heating jacket, stir it evenly by magnetic force to obtain the mixed solution A, and set aside;

[0076] S2: Add the dried fumed silica obtained in S1 into the mixed liquid A obtained in S1 three times, add 20g each time, mix well and then add another 20g until 60g is completely added, and heat to 80°C , stirring and reacting at constant temperature for 5 hours to prepare a mixed solution B for subsequent use;

[0077] S3: Weigh 5g of octamethylcyclotetrasiloxane and add it to the mixed solution B obtained in S2, mix evenly, heat up to 120°C, stir and react at a constant temperature for 3h, cool to room temperature, filte...

preparation example 2

[0079] A preparation of modified fumed silica, comprising the steps of:

[0080] S1: Weigh 55g of fumed silica, put it in an oven with a set temperature of 50°C, bake for 8 hours to obtain dry fumed silica, and set aside; weigh 8g of hexamethyldisilazane and 100g of toluene, put In a three-necked flask with a reflux condenser, heat the magnetic stirrer through an oil bath and mix evenly to obtain a mixed solution A, which is set aside;

[0081] S2: Add the dried fumed silica obtained in S1 to the mixed liquid A obtained in S1 in three times, add 20g for the first time, mix evenly, then add another 20g, finally add 15g, mix evenly, heat to 90 ℃, stirring at constant temperature for 3 hours to prepare the mixed solution B and set aside;

[0082] S3: Weigh 3g of octamethylcyclotetrasiloxane and add it to the mixed solution B prepared in S2, mix well, heat up to 115°C, stir at constant temperature for 2h, cool to room temperature, and filter with a vacuum filter , placed in an o...

preparation example 3

[0084] A preparation of modified fumed silica, comprising the steps of:

[0085] S1: Weigh 50g of fumed silica, put it into an oven with a set temperature of 50°C, and dry it for 6h to obtain dry fumed silica for use; weigh 5g of hexamethyldisilazane and 80g of toluene, Put it into a three-necked flask with a reflux condenser installed in an oil bath heating jacket, stir it evenly by magnetic force to obtain the mixed solution A, and set aside;

[0086] S2: Add the dried fumed silica obtained in S1 into the mixed liquid A obtained in S1 three times, add 20g for the first time and mix evenly, then add another 20g, finally add 10g and mix evenly, heat to 100°C , stirring and reacting at constant temperature for 1 h to prepare the mixed solution B for subsequent use;

[0087] S3: Weigh 1g of octamethylcyclotetrasiloxane and add it to the prepared mixed solution B in S2, mix well, heat up to 110°C, stir at constant temperature for 1h, cool to room temperature, and filter with a v...

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Abstract

The invention relates to the technical field of silicone rubber, and particularly discloses matte silicone rubber for silk screen printing and a preparation method thereof.The matte silicone rubber is composed of a component A and a component B; the component A comprises vinyl-terminated silicone oil, methyl silicone oil, modified fumed silica, hollow microspheres, silicon dioxide, a silane coupling agent, a solvent and a platinum catalyst; the component B comprises vinyl-terminated silicone oil, methyl silicone oil, modified fumed silica, hollow microspheres, a silane coupling agent, a solvent, silicon dioxide, hydrogen-containing silicone oil and an inhibitor; the matte silicone rubber is prepared by mixing the component A and the component B according to the ratio of 1: (0.8-1.2), and by adopting the hollow microspheres and the modified fumed silica, the prepared matte silicone rubber has the advantages of being high in adhesion, resistant to friction and lasting in matte effect.

Description

technical field [0001] The application relates to the technical field of silicone rubber, more specifically, it relates to a matte silicone rubber for silk screen printing and a preparation method thereof. Background technique [0002] Screen printing silicone is a kind of liquid silicone used for printing. It can be firmly adhered to the surface of textiles through screen printing. Liquid silicone can reflect different printing effects by adding additives with different properties. Among them, the matte effect of silk screen printing silicone Because of its smooth surface, non-sticky surface, easy to clean and other advantages, it is loved by consumers. [0003] Usually, in order to achieve the matte effect of liquid silicone, matting powder is added to achieve the matte effect of silicone rubber, but the matting effect of matting powder is insufficient, and the matte surface after silk printing has poor wear resistance, and the silk screen layer of silicone rubber is easy ...

Claims

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Application Information

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IPC IPC(8): C09J183/07C09J183/04C09J11/04
CPCC09J183/04C09J11/04C08L2205/025C08L83/04C08K9/06C08K9/02C08K7/26C08K7/24
Inventor 杨思广杨粟才刘小兵
Owner 东莞天绘新材料有限公司
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