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TRB (thermoplastic rubber) high-physical-property composite injection-molding rubber material

A rubber material and composite technology, applied in the field of composite materials, can solve the problems of high elasticity, stress cracking resistance and low density of TPR modified materials, failing to effectively solve the problems of TPR material and poor shock absorption ability, and achieving high resistance to The effect of low abrasiveness, shortened processing time, and reduced defect rate

Inactive 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

[0002] TPR is the abbreviation of Thermoplastic Rubber. It is widely used in the field of shoe materials. It has the advantages of easy shaping and low price. The disadvantages are that the material is heavy, not wear-resistant, poor in softness, poor in bendability, and poor in shock absorption.
[0003] Chinese patent 2014.05.14, with the publication number CN 103788440 A, discloses an improved formulation of TPR, which is characterized in that the TPR material is made of thermoplastic rubber, toluene diisocyanate and isoprene rubber, and the TPR material has Elasticity, cold resistance (glass transition temperature -68°C) and high tensile strength, however, this material still fails to effectively solve the problems of TPR material being heavy and not wear-resistant
[0004] At present, there is still no TPR modified material that can simultaneously possess properties such as plasticity, high elasticity, stress crack resistance, wear resistance and low density.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] In the present embodiment, the raw material weight ratio of high physical property composite injection molding rubber material is: 50 parts of SBS; 10 parts of SEBS; 20 parts of nitrile rubber; 15 parts of polystyrene; 17 parts of softening oil; 4 parts of white carbon black; 5 parts of nano-calcium carbonate; 4 parts of low-temperature foaming agent; 1.5 parts of polymer wear-resistant oil; 5 parts of grafted substances.

[0016] Among them, the grafted substance is made by mixing fillers, rubber additives and lubricants.

Embodiment 2

[0018] In the present embodiment, the ratio of raw materials by weight of high-physical composite injection molding rubber material is: 60 parts of SBS; 20 parts of SEBS; 30 parts of nitrile rubber; 20 parts of polystyrene; 17 parts of softening oil; 8 parts of white carbon black ; 7 parts of nano-calcium carbonate; 5 parts of low-temperature foaming agent; 2 parts of polymer wear-resistant oil; 10 parts of grafted substances.

[0019] Among them, the grafted substance is made by mixing fillers, rubber additives and lubricants.

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Abstract

The invention discloses a TRB (thermoplastic rubber) high-physical-property composite injection-molding rubber material which is prepared from the following raw materials in parts by weight: 50-60 parts of SBS (styrene-butadiene-styrene), 10-20 parts of SEBS (styrene-ethylene-butadiene-styrene), 20-30 parts of nitrile-butadiene rubber, 15-20 parts of polystyrene, 15-20 parts of softening oil, 4-8 parts of silica white, 5-7 parts of nano calcium carbonate, 4-5 parts of low-temperature foaming agent, 1.5-2 parts of high-polymer wear-resistant oil and 5-10 parts of grafting substance.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a TRB high physical property composite injection molding rubber material. Background technique [0002] TPR is the abbreviation of Thermoplastic Rubber. It is widely used in the field of shoe materials. It has the advantages of easy shaping and low price. The disadvantages are that the material is heavy, not wear-resistant, poor in softness, poor in flexibility, and poor in shock absorption. [0003] Chinese patent 2014.05.14, with the publication number CN 103788440 A, discloses an improved formulation of TPR, which is characterized in that the TPR material is made of thermoplastic rubber, toluene diisocyanate and isoprene rubber, and the TPR material has Elasticity, cold resistance (glass transition temperature -68°C) and high tensile strength, however, this material still fails to effectively solve the problems of TPR material being heavy and not wear-resistant. ...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L9/02C08L25/06C08K13/02C08K3/36C08K3/26
Inventor 伍达志
Owner 广东志达行新材料有限公司
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