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Wear-resistant composite rubber applicable to rubber shoe undersole and preparation method of wear-resistant composite rubber

A technology for compounding rubber and rubber shoes, which is applied in the direction of shoe soles, footwear, applications, etc., can solve the problems of tight supply and demand, shortage of rubber resources, etc., and achieve the effects of reducing contact area, improving processing performance, and improving wear resistance

Inactive Publication Date: 2018-09-04
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But unfortunately, my country's rubber resources are relatively scarce. Statistics show that in recent years, China's imported NR has reached 86% of the annual consumption of NR. NR has fallen below the safety line of 30% for many years, and its consumption has continued for ten Yu Nian occupies the first place in the world, and the contradiction between supply and demand is very tense

Method used

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  • Wear-resistant composite rubber applicable to rubber shoe undersole and preparation method of wear-resistant composite rubber

Examples

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Effect test

Embodiment 1

[0032] This embodiment provides an activated modified tire waste rubber powder, which is made of the following raw materials in parts by weight: 100 parts by weight of waste tire rubber powder (30 mesh), and 2.0 parts by weight of paraffin oil.

[0033] The present embodiment also provides the preparation method of above-mentioned activated rubber powder, comprises the following steps:

[0034] (1) Premixing: Mix 100 parts by weight of waste tire rubber powder and 2.0 parts by weight of paraffin oil in a high-speed mixer with a rotating speed of 80 rpm for 10 minutes;

[0035] (2) Activation modification: The premixed rubber powder is activated and modified in a high-speed mixer with a rotation speed of 60 rpm and a temperature of 200 ° C, and the modification time is 25 minutes;

[0036] (3) cooling the above-mentioned activated modified rubber powder to normal temperature under natural conditions;

[0037] (4) Composite rubber mixing: Mix 88 parts by weight of NR and 12 par...

Embodiment 2

[0045] This embodiment provides an activated modified tire waste rubber powder, which is made of the following raw materials in parts by weight: 100 parts by weight of waste tire rubber powder (30 mesh), and 5.0 parts by weight of paraffin oil.

[0046]The present embodiment also provides the preparation method of above-mentioned activated rubber powder, comprises the following steps:

[0047] (1) Premixing: 100 parts by weight of waste tire rubber powder and 5.0 parts by weight of paraffin oil were mixed for 10 minutes in a high-speed mixer with a rotating speed of 80 rpm;

[0048] (2) Activation modification: The premixed rubber powder is activated and modified in a high-speed mixer with a rotation speed of 45 rpm and a temperature of 200 ° C, and the modification time is 15 minutes;

[0049] (3) cooling the above-mentioned activated modified rubber powder to normal temperature under natural conditions;

[0050] (4) Composite rubber mixing: Mix 88 parts by weight of NR and ...

Embodiment 3

[0058] This embodiment provides a tire waste rubber powder / NR composite rubber, which is made of the following raw materials in parts by weight: 88 parts by weight of NR, and 12 parts by weight of tire rubber powder.

[0059] The present embodiment also provides the preparation method of above-mentioned compound rubber, comprises the steps:

[0060] (1) Compound rubber mixing: mix 88 parts by weight of NR and 12 parts by weight of tire rubber powder in a 500ml internal mixer, the speed is 45 rpm, the time is 7min, the mixing temperature is 90°C, The debinding temperature is 110°C;

[0061] (2) The above-mentioned composite rubber is passed through an open mill to pass through rolls, and the sheet is discharged, with a thickness of about 3 mm, and finally the composite rubber is cooled to normal temperature under natural conditions.

[0062] The present invention also provides rubber shoes outsole compound rubber prepared by using the above composite rubber, which is made of t...

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Abstract

The invention relates to wear-resistant composite rubber applicable to a rubber shoe undersole and a preparation method of the wear-resistant composite rubber. The composite rubber is prepared from the following raw materials in parts by weight: 70 to 90 weight parts of natural rubber and 10 to 30 weight parts of waste tire powder or modified rubber powder, wherein the modified rubber powder is obtained by modification with activating agents; the activating agents are prepared from at least one kind of materials of special rubber regeneration agents 450 and regeneration agents 480. An environment-friendly auxiliary agent and mild process conditions are used for preparing the activated rubber powder with the surface activity; unmodified rubber powder or the activated rubber powder is used for preparing composite rubber with the solid content being not less than 12 percent; through the low-degree activation modification, a great number of elastic structures inside the rubber powder particles are retained; the composite rubber and the shoe sole vulcanized rubber still have good wear resistant performance.

Description

technical field [0001] The invention relates to a wear-resistant composite rubber suitable for the outsole of rubber shoes and a preparation method thereof. Background technique [0002] Rubber shoes are traditional rubber products with the earliest origin and the longest history in my country's rubber industry. The raw rubber used in the rubber shoes industry is mainly natural rubber (NR) and some synthetic rubber. Natural rubber is a natural polymer compound with polyisoprene as the main component. Its vulcanized rubber has the characteristics of excellent resilience, insulation, water resistance and plasticity, and it also has oil resistance and acid resistance after proper treatment. , alkali resistance, heat resistance, cold resistance, pressure resistance, wear resistance and other properties. But unfortunately, my country's rubber resources are relatively scarce. Statistics show that in recent years, China's imported NR has reached 86% of the annual consumption of N...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08L19/00C08L91/06C08L57/02C08K13/02C08K3/04C08K3/06C08K3/22C08K5/09A43B13/04
CPCA43B13/04C08L7/00C08L9/00C08L19/003C08K2003/2296C08L2205/035C08L2205/03C08L91/06C08L57/02C08K13/02C08K3/04C08K3/06C08K3/22C08K5/09
Inventor 卢娜王雪盼王洪振辛振祥夏琳王彦李琳
Owner QINGDAO UNIV OF SCI & TECH