A kind of tcr thermally controllable polymer elastic composite rubber material

A rubber material and compound rubber technology, applied in the field of composite materials, can solve the problems of inability to ensure injection molding and injection processes, limited processing and application scope, poor anti-slip effect, etc., and achieves reduction in tensile strength and hardness, and density. , the effect of excellent performance

Active Publication Date: 2016-06-29
广东志达行新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in production, the viscosity of EPDM material increases due to the increase in dosage, which cannot ensure the smooth progress of injection molding and injection processes, and has the disadvantages of wear resistance and poor anti-slip effect, which limits the scope of its processing application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] In this embodiment, the parts by weight of each raw material are: 60 parts by weight of rubber material, 15 parts by weight of olefin block copolymer, 20 parts by weight of injection material, and weight of ethylene-octene copolymer The parts are 5 parts, the foaming agent is 4 parts, the vulcanizing agent is 0.3 parts, the accelerator is 0.3 parts, the rubber auxiliary agent is 0.6 parts, and the nano calcium carbonate is 3 parts. The weight part of the active agent is 1 part. Among them, the injection material is mixed with 12 parts of ethylene-vinyl acetate copolymer and 8 parts of EPDM rubber.

[0015] The formula of this embodiment can be prepared as a TCR thermally controllable polymer elastic composite rubber material through the following process. The process steps are as follows: First, the rubber material, the olefin block copolymer, the injection material, and 0.4 parts of rubber additives , 2 parts of nano calcium carbonate, 0.1 part of vulcanizing agent and a...

Embodiment 2

[0020] In this embodiment, the parts by weight of each raw material are: 70 parts by weight of rubber material, 20 parts by weight of olefin block copolymer, 30 parts by weight of injection material, and weight of ethylene-octene copolymer Parts are 10 parts, foaming agent is 6 parts, vulcanizing agent is 2 parts, accelerator is 2 parts, rubber auxiliary agent is 2.1 parts, and nano calcium carbonate is 10.5 parts by weight. The weight of the active agent is 3.5 parts. Among them, the injection material is a mixture of 21 parts of ethylene-vinyl acetate copolymer and 9 parts of EPDM rubber.

[0021] The formula of this embodiment can be prepared as a TCR thermally controllable polymer elastic composite rubber material through the following process, and the process steps are as follows:

[0022] Put the rubber material, olefin block copolymer, injection material, 1.4 parts of rubber additives, 7 parts of nano calcium carbonate, 0.7 parts of vulcanizing agent and active agent into t...

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PUM

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Abstract

The invention discloses a TCR thermally controllable polymer elastic composite rubber material, which is processed from the following raw materials: rubber material, olefin block copolymer, injection material, ethylene-octene copolymer, foaming agent , vulcanizing agent, rubber auxiliary agent, filler, activator and accelerator; wherein the weight part of rubber material is 60-70 parts, the weight part of olefin block copolymer is 15-20 parts, and the weight part of injection material is 20 parts -30 parts, the weight part of ethylene-octene copolymer is 5-10 parts, the weight part of blowing agent is 4-6 parts, the weight part of vulcanizing agent is 0.3-2 part, the weight part of accelerator is 0.3-2 Parts, parts by weight of rubber additives are equal to 1-3% of the rubber material, parts by weight of the filler are equal to 5-15% of the rubber material, parts by weight of the active agent are equal to 3-5% of the rubber material.

Description

Technical field [0001] The invention relates to the field of composite materials, in particular to a TCR thermally controllable polymer elastic composite rubber material. Background technique [0002] EPDM is EPDM rubber, which belongs to the family of polyolefins, so it has excellent vulcanization properties. Among all rubbers, EPDM has the smallest specific gravity and is widely used in various fields. However, in production, the viscosity of EPDM material increases due to the increase in dosage, which cannot ensure the smooth progress of injection molding and injection processes, and has the disadvantages of wear resistance and poor anti-slip effect, which limits the scope of its processing and application. [0003] The Chinese patent publication number is CN101747564B. The subject is an invention patent for a high-flow EPDM material and its preparation method. It uses its formula and preparation process to modify EPDM so that its fluidity meets the requirements of the injection...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L21/00C08L53/00C08L23/08C08L23/16C08K13/02C08K3/26C08J3/22
Inventor 伍达志
Owner 广东志达行新材料有限公司
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