Low compression set liquid silastic and preparation method thereof

Abstract

The invention relates to a low compression set liquid silastic and a preparation method thereof. The low compression set liquid silastic is prepared from components A and B according to a certain mass ratio, wherein the component A is prepared from the following components in parts by weight: 100 parts of liquid silastic base rubber and 0.2-0.5 part of a catalyst; the component B is prepared from following components in parts by weight: 100 parts of liquid silastic base rubber, 6-25 parts of a crosslinking agent and 0.1-0.3 part of an inhibitor.

Description

technical field [0001] The invention relates to a liquid silicone rubber with low compression set and a preparation method thereof, mainly referring to a liquid silicone rubber product with low compression set, high rebound and low hardness after molding, and belongs to the technical field of addition-type liquid silicone rubber. Background technique [0002] Because liquid silicone rubber has excellent properties such as high and low temperature resistance, ultraviolet resistance, radiation resistance, weather resistance, electrical insulation, high air permeability, and physiological inertia, it is widely used in aviation, aerospace, electronic appliances, chemicals, machinery, medicine, daily necessities, etc. has been widely applied. Silicone rubber for rubber rollers used in laser printers, copiers, fax machines, and ATMs requires properties such as low hardness, low compression set, and dimensional stability. [0003] Compositions having low compression set upon cross...

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Problems solved by technology

None of these compositions can simultaneously satisfy low compression set, low hardness and dimensional stability

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