Self-lubricating silicone rubber and preparation method thereof

A silicone rubber and self-lubricating technology, which is applied in the field of self-lubricating silicone rubber and its preparation, can solve the problems that silicone rubber cannot be used as a dynamic sealing material, and the surface friction of silicone rubber is large, so as to avoid detonation and reduce moisture content , control the effect of appearance particles
CN110437622AInactive Publication Date: 2019-11-12HUBEI XINHAIHONG CHEM
0 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUBEI XINHAIHONG CHEM
Publication Date
2019-11-12
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention belongs to the technical field of silica gel, and more specifically relates to a self-lubricating silicone rubber, and a preparation method thereof. The self-lubricating silicone rubbercomprises following components, by weight, 100 parts of methyl vinyl silicone rubber, 10 to 30 parts of fumed silica, 1 to 5 parts of vinyl hydroxy silicone oil, 0.10 to 0.15 part of zinc stearate, 10to 30 parts of diphenyl silicone oil, and 2 to 10 parts of calcium oxide. According to the preparation method, rubber physical performance is improved through improvement of rubber ratio; non-reactive silicone oil is added to reduce silica gel surface frictional force after sulfuration; an appropriate amount of calcium oxide is added to improve the stability of silica gel products; special zinc stearate component is added to improve moulding demoulding performance and roller adhesion performance, so that silica gel surface friction force is reduced without influencing silica gel basic performance, product wearing is reduced, silica gel dynamic sealing effect is achieved, and product service life is prolonged.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of silica gel, in particular to a self-lubricating silicone rubber and a preparation method thereof. Background technique

[0002] Silicone rubber is a polymer insulating material with both inorganic and organic properties. It is a chain structure formed by Si-O (silicon-oxygen) bonds. The Si-O bond energy is 443.5KJ / MOL, which is higher than the C-C bond energy (355KJ / MOL) is much higher, and because of its unique molecular structure, silicone rubber has better heat resistance, electrical insulation, chemical stability, etc. than other common rubbers. And because a very small amount of unsaturated vinyl and organic groups are introduced into its molecular side chain, such as methyl, phenyl, etc., this structure of silicone rubber has aging resistance and weather resistance, and has the effect on ozone and ultraviolet rays. It is also very stable and has excellent electrical insulation properties. Its resi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More