High-hardness extruded silicone rubber composition and preparation method thereof

A silicone rubber composition and extrusion-type technology are applied in the field of high-hardness extrusion-type silicone rubber composition and its preparation, which can solve the problems of high vulcanization speed, affect the appearance of mixed rubber products, low decomposition temperature, etc., and achieve enhanced Effects of crosslinking density, suppression of secondary vulcanization hardness reduction, and elongation improvement
CN105778518AActive Publication Date: 2016-07-20ZHEJIANG XINAN CHEM INDAL GROUP
4 Cites 36 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG XINAN CHEM INDAL GROUP
Publication Date
2016-07-20

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides high-hardness extruded silicone rubber composition. The silicone rubber takes methyl vinyl siloxane with the average molecular weight of 0.55-0.75 million and the average vinyl molar content of 0.4-0.55% as rubber master batch, and reinforced white carbon black, silica powder, a structurized control agent, vinyl-terminated methyl vinyl silicone oil, an internal releasing agent, an anti-yellowing agent, magnesium oxide and cerium oxide are added. The prepared silicone rubber has high hardness, high resilience, relatively high elongation and high tear resistance after high temperature vulcanization and can be applicable to silicone products such as an industrial rubber-covered roller, a pressing wheel, a sealing ring and a sealing element.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a high-hardness extruded silicone rubber composition and a preparation method thereof. The silicone rubber has high hardness, high resilience, high elongation and tear resistance after being vulcanized at a high temperature, and can be applied to Industrial rubber rollers, pressure rollers, sealing rings, seals and other silicone miscellaneous parts. Background technique

[0002] Due to its excellent heat resistance, cold resistance, environmental resistance, electrical insulation, low compression set and fatigue resistance, silicone rubber compounds have been widely used in electronics, electrical, Machinery manufacturing, chemical industry, food, daily necessities, medical and health and other fields. In recent years, the performance requirements for silicone rubber have been increasing, especially for silicone rubber with a temperature of 80 degrees and above that is suitable for industrial rubber rollers, pressure wheels, ...

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