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Fiber-reinforced self-curing silicone rubber and preparation method thereof

A fiber-reinforced, self-curing technology, applied in the field of non-metallic functional materials, can solve the problems of poor tensile strength and tear strength of self-curing silicone rubber, and achieve good flame retardancy, strong acid and alkali resistance, and improved mechanical properties Effect

Pending Publication Date: 2022-07-12
武汉楚辰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a fiber-reinforced self-curing silicone rubber and its preparation method, aiming to solve the problem of poor tensile strength and tear strength of self-curing silicone rubber in the prior art

Method used

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  • Fiber-reinforced self-curing silicone rubber and preparation method thereof
  • Fiber-reinforced self-curing silicone rubber and preparation method thereof
  • Fiber-reinforced self-curing silicone rubber and preparation method thereof

Examples

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preparation example Construction

[0046] A second aspect of the embodiments of the present application provides a method for preparing fiber-reinforced self-curing silicone rubber, comprising the following steps:

[0047] S01. Provide each component according to fiber-reinforced self-curing silicone rubber;

[0048] S02. carry out a first mixing process with liquid silicone rubber, fibers, fillers and colorants to obtain a first mixed material;

[0049] S03. The crosslinking agent, the coupling agent, the aging agent, the catalyst and the first mixed material are subjected to a second mixing treatment, and extrusion molding is performed to obtain a fiber-reinforced self-curing silicone rubber.

[0050] The second aspect of the present application provides a method for preparing fiber-reinforced self-curing silicone rubber, the preparation method is divided into two steps, the liquid silicone rubber, fibers, fillers and colorants are respectively subjected to a first mixing treatment to obtain a first mixed mat...

Embodiment 1

[0059] Fiber-reinforced self-curing silicone rubber and preparation method thereof

[0060] Fiber-reinforced self-curing silicone rubber

[0061] It includes the following components in the following parts by weight:

[0062]

[0063] Among them, the liquid silicone rubber is selected from α,ω-dihydroxy polydimethylsiloxane with a viscosity of 80000mPa·s; the fiber is selected from basalt fiber, the filler is selected from hydrophobic fumed silica, and the cross-linking agent is selected from methyl Tributyl ketoximinosilane, coupling agent selected from γ-aminopropyltriethoxysilane, antioxidant selected from N-phenyl-2-naphthylamine, colorant selected from pigment carbon black, catalyst selected from dilaurin Dibutyltin acid.

[0064] Preparation method of fiber-reinforced self-curing silicone rubber

[0065] The fiber-reinforced self-curing silicone rubber provided according to Example 1 provides each component;

[0066] Put liquid silicone rubber, fibers, fillers ...

Embodiment 2

[0070] The production method of the fiber-reinforced self-curing silicone rubber in Example 2 is exactly the same as that in Example 1, except that the amount of basalt fiber in Example 2 is 15 parts, and the proportions of other components are exactly the same.

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Abstract

The invention provides fiber-reinforced self-curing silicone rubber. The fiber-reinforced self-curing silicone rubber comprises the following raw materials by weight: liquid silicone rubber, reinforced fibers, a cross-linking agent, a reinforcing filler, a coupling agent, an anti-aging agent, a coloring agent and a catalyst. The invention also provides a preparation method of the fiber-reinforced self-curing silicone rubber. According to the invention, the reinforced fibers are uniformly distributed in the silicone rubber matrix and are compounded with the silicone rubber to prepare a reinforced composite material similar to a polymer blend, and by adding the reinforced fibers, the service life of the reinforced composite material can be effectively prolonged, and the tensile strength of the reinforced composite material is remarkably improved.

Description

technical field [0001] The application belongs to the technical field of non-metallic functional materials, and in particular relates to a fiber-reinforced self-curing silicone rubber and a preparation method thereof. Background technique [0002] Self-curing silicone rubber is a linear polyorganosiloxane based polymer (raw rubber), added with mixed materials, compounded and vulcanized to form an elastomer. It can be used in a wide temperature range, from -100 ° C to 315 ° C, which is beyond the reach of any other elastomer. Weather resistance is its characteristic, and it is estimated by tests that it can be used outdoors for 100 to 150 years. It also has excellent properties such as electrical insulation, hydrophobicity, anti-adhesion, and biochemical compatibility. It is an elastomer commonly used in modern fields. [0003] At present, the mechanical properties such as tensile strength and tear strength of self-curing silicone rubber on the market are poor, and its mech...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L75/04C08K7/10C08K7/14C08K7/26C08K5/18C08K13/04C08J5/04
CPCC08J5/043C08J5/046C08J2383/04C08J2475/04C08K7/10C08K7/14C08K7/26C08K5/18C08K13/04
Inventor 张灿陈虹程太品饶欢邹俊杰
Owner 武汉楚辰新材料科技有限公司
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