TCR thermo-controllable macromolecular elastic compounded rubber material

A rubber material and composite rubber technology, applied in the field of composite materials, can solve problems such as inability to ensure injection molding and injection technology, limited processing and application range, poor anti-slip effect, etc., to achieve lower tensile strength and hardness, and lower density , Resilience and the effect of elongation at break improvement

Active Publication Date: 2015-01-07
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: the parts by weight of the rubber material are 60 parts, the parts by weight of the olefin block copolymer are 15 parts, the parts by weight of the injection material are 20 parts, and the parts by weight of the ethylene-octene copolymer are Part is 5 parts, and the weight part of blowing agent is 4 parts, and the weight part of vulcanizing agent is 0.3 part, and the weight part of accelerator is 0.3 part, and the weight part of rubber additive is 0.6 part, and the weight part of nano calcium carbonate is 3 parts. Part, the weight part of active agent is 1 part. Among them, the injection material is made by mixing 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. , 2 parts of nano-calcium carbonate, 0.1 part of vulcanizing ...

Embodiment 2

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

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

[0022] Put the rubber materia...

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PUM

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Abstract

The invention discloses a TCR thermo-controllable macromolecular elastic compounded rubber material. The material is prepared from the following raw materials in parts by weight: 60-70 parts of rubber materials, 15-20 parts of olefin block copolymer, 20-30 parts of injection materials, 5-10 parts of ethylene-octylene copolymer, 4-6 parts of foaming agent, 0.3-2 parts of vulcanizing agent, 0.3-2 parts of accelerant, rubber auxiliaries, a filling agent and an active agent, wherein the weight parts of rubber auxiliaries account for 1%-3% of that of rubber materials, the weight parts of filling agent account for 5-15% of that of the rubber materials, and the weight parts of active agent account for 3%-5% of that of the rubber materials.

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 ethylene propylene diene monomer, which belongs to the polyolefin family, so it has excellent vulcanization. Among all rubbers, EPDM has the smallest proportion 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 application. [0003] The Chinese patent publication number is CN 101747564 B, the subject of which is an invention patent of a high-flow EPDM material and its preparation method, which uses its formula and preparation process to modify EPDM so that its fluidity meets the requirements ...

Claims

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Application Information

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Patent Type & Authority Applications(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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