Two-component addition type liquid silicone rubber and preparation method thereof

A liquid silicone rubber and addition molding technology, applied in the field of silicone rubber manufacturing, can solve the problems of the influence of silicone rubber components and the inability to meet various use requirements, and achieve high transparency, increase market competitiveness, and good flexibility.

Inactive Publication Date: 2017-05-31
镇江高美新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the silicone rubber in the prior art is made of a single component, and the silicone rubber is limited by the components and cannot meet various application requirements

Method used

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  • Two-component addition type liquid silicone rubber and preparation method thereof
  • Two-component addition type liquid silicone rubber and preparation method thereof
  • Two-component addition type liquid silicone rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A two-component addition type liquid silicone rubber, which is composed of component A and component B at a mass ratio of 10:100, wherein the formula raw materials of component A include the following components in parts by mass: vinyl silicone oil 100kg, content of 5000PPM platinum catalyst 2.5kg, accelerator 0.8kg, leveling agent 0.kg; component B formula raw materials include the following components in parts by mass: base rubber 100kg, hydrogen-containing crosslinking agent 3.8kg, inhibitor 0.16kg, Vinyl silicone oil 23kg; the base rubber is composed of 156kg vinyl silicone oil and 39kg white carbon black reinforcing filler. The vinyl silicone oil has a viscosity of 1000-5000mpa.s at 25°C. The vinyl silicone oil is prepared by mixing 100 parts by mass of octamethylcyclotetrasiloxane and 0.01-0.5 parts by mass of tetramethyldivinyl di Mix siloxane, add 0.02-0.8 parts by mass of siloxane-potassium hydroxide prepolymer under stirring, heat up to 90-110°C for polymeriza...

Embodiment 2

[0030]A two-component addition type liquid silicone rubber, which is composed of component A and component B at a mass ratio of 2:100, wherein the formulation raw materials of component A include the following components in parts by mass: vinyl silicone oil 100kg, content of 5000PPM platinum catalyst 5kg, accelerator 1.2kg, leveling agent 0.2kg; component B formula raw materials include the following components in parts by mass: base rubber 100kg, hydrogen-containing crosslinking agent 27kg, inhibitor 0.15kg, vinyl silicone oil 9kg; the base rubber is composed of 168kg vinyl silicone oil and 40kg white carbon black reinforcing filler. The vinyl silicone oil has a viscosity of 1000-5000mpa.s at 25°C. The vinyl silicone oil is prepared by mixing 100 parts by mass of octamethylcyclotetrasiloxane and 0.01-0.5 parts by mass of tetramethyldivinyl di Mix siloxane, add 0.02-0.8 parts by mass of siloxane-potassium hydroxide prepolymer under stirring, heat up to 90-110°C for polymerizat...

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Abstract

The invention provides two-component addition type liquid silicone rubber and a preparation method of the two-component addition type liquid silicone rubber. The addition type liquid silicone rubber prepared through the method comprises a component A and a component B in a mass ratio of (2: 100) to (10: 100), wherein formula raw materials of the component A comprise the following components calculated in parts by mass: 95 to 105 parts of vinyl silicone oil, 2.0 to 5.0 parts of a platinum catalyst, 0.5 to 1.0 part of an accelerant, and 0.1 to 0.2 part of a leveling agent; formula raw materials of the component B comprise the following components calculated in parts by mass: 95 to 105 parts of base gum, 1.0 to 5.0 parts of hydrogen containing crosslinking agents, 0.05 to 0.1 part of an inhibitor, and 15 to 50 parts of vinyl silicone oil, wherein the base gum comprises 100 parts of vinyl silicone oil and 25 to 35 parts of white carbon black. The two-component addition type liquid silicone rubber and the preparation method of the two-component addition type liquid silicone rubber disclosed by the invention have the advantages that the addition type liquid silicone rubber with strong poison resistance, strong adhesive property, fast curing rate, high transparency, good full degree and high mechanical strength is provided and the prepared product can be widely used for manufacturing clothing trademarks (soft crystal adhesive) and anti-skid foot pads and the like (cambered surface adhesive).

Description

technical field [0001] The invention relates to the technical field of silicone rubber manufacture, in particular to a two-component addition type liquid silicone rubber and a preparation method thereof. Background technique [0002] Silicone rubber refers to the rubber whose main chain is composed of silicon and oxygen atoms alternately, and there are usually two organic groups attached to the silicon atoms. Ordinary silicone rubber is mainly composed of silicone chains containing methyl groups and a small amount of vinyl groups. The introduction of phenyl groups can improve the high and low temperature resistance of silicone rubber, and the introduction of trifluoropropyl and cyano groups can improve the resistance of silicone rubber. Heat and oil resistance. Silicone rubber has good low temperature resistance, and generally can still work at -55°C. After the introduction of phenyl groups, it can reach -73°C. The heat resistance of silicone rubber is also outstanding. It...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05C08K9/06C08K3/36
CPCC08L83/04C08K2201/006C08L2201/10C08L2205/025C08K9/06C08K3/36
Inventor 陆磊欧金海王超
Owner 镇江高美新材料有限公司
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