High-performance anti-crack-growth rubber composite material and preparation method thereof

Abstract

The invention discloses a high-performance anti-crack-growth rubber composite material, and belongs to the technical field of rubber composite materials. The high-performance anti-crack-growth rubbercomposite material includes the following raw materials in parts by weight: 90-100 parts of natural rubber, 10-25 parts of zinc methacrylate, 10-30 parts of white carbon black, 1-5 parts of low molecular weight liquid polyisoprene, 1-10 parts of natural rubber latex, 0.1-2 parts of a vulcanizing agent, 1-7 parts of an activator, 1-5 parts of an accelerator, 0.1-0.5 part of an anti-aging agent, and5-10 parts of coumarone resin. The invention also discloses a preparation method of a nano photocatalyst formaldehyde-scavenging coating; the preparation method has fewer preparation raw materials, has easily obtained raw materials, and has excellent performance and a certain ability to resist crack growth; the preparation method of the rubber composite material has many advantages of easy operation, low requirements on equipment, low cost and the like.

Description

technical field [0001] The invention belongs to the technical field of rubber composite materials, and in particular relates to a high-performance crack growth-resistant rubber composite material and a preparation method thereof. Background technique [0002] With the development of industry, especially the development of the petroleum industry, the branched chain industry has also flourished. Due to its excellent performance and characteristics, rubber has gradually become an indispensable part of people's daily life. With the deepening of rubber research, The physical and mechanical properties of rubber are constantly improving, and rubber products are applied to fields such as automobile tires, conveyor belts, shock absorbers, and bearing gaskets. However, the polyisoprene that constitutes natural rubber is linked by covalent bonds, and under dynamic load, it is easy to cause rapid crack growth and fatigue failure due to internal structure damage. [0003] As a strained ...

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Problems solved by technology

On the other hand, in order to further improve the comprehensive performance of rubber composite materials, it is often to start with the crosslinking density of rubber and rubber reinforcing agent. However, too high crosslinking density of covalent bonds will lead to too hard rubber and affect other excellent properties.

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