New method for activating and recycling tyre waste rubber powder

A technology of tire waste rubber and a new method, which is applied in the field of activation and reuse of tire waste rubber powder and waste tire tread rubber powder, can solve problems such as complicated process, achieve accurate process, less production investment, and mainly The effect of excellent performance

Inactive Publication Date: 2010-04-21
XUZHOU COLLEGE OF INDAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the disadvantages of complex processe

Method used

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  • New method for activating and recycling tyre waste rubber powder
  • New method for activating and recycling tyre waste rubber powder

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Embodiment Construction

[0028] Further illustrate the scheme and effect of the present invention below in conjunction with embodiment.

[0029] Such as figure 1 with figure 2 As shown, 25.0kg of waste rubber tire tread rubber powder with a particle size of 30 meshes was added to 3.0kg of compatibilizer phenolic resin and 0.2kg of chemical peptizer 2,2-benzamidophenyl disulfide, and then extruded by a screw Extrusion machine (XJ-250) for extrusion. After the waste rubber powder is extruded, it enters into the microwave radiation device while stirring, and is activated by microwave radiation. The radiation microwave frequency of the microwave device is 2450Hz, the power is 800W, and the irradiation time is 2min. The waste rubber powder activated by microwave radiation is air-cooled, and cooled for 10 minutes while stirring at 0-10°C. Thinly pass the activated waste rubber powder about 10 times on the low-temperature open mill (XK-160), and the roller distance is 0.5-1.0mm. Then, the activated rubb...

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Abstract

The invention discloses a new method for activating and recycling tyre waste rubber powder, which belongs to the technical field of recycling waste rubbers. The process comprises the following steps: adding a fixed quantity of modifying agent into the waste rubber powder; extruding the mixture by using a screw extruder; heating, drying and cracking the waste rubber powder in the extruding process to ensure that a large number of cross bonds in the waste rubber powder are fractured; cooling the extruded waste rubber powder after microwave radiation, then activating the waste rubber powder, and mixing the activated waste rubber powder with universal rubbers such as natural rubber, cis-butadiene rubber, styrene butadiene rubber and the like to prepare a gross rubber; and vulcanizing the gross rubber. Tests show that a sample and a product containing the activated rubber powder have excellent performances, and the process is simple, convenient and efficient and has outstanding economic benefits and social benefits.

Description

technical field [0001] The invention relates to waste rubber material recovery and reuse technology, in particular to a new method for activation and reuse of tire waste rubber powder. It is mainly suitable for the activation and reuse of waste tire tread rubber powder. Background technique [0002] The amount of waste rubber materials is second only to waste plastics among waste and old polymer materials. Among them, the annual scrapping of automobile tires is more than 1 billion in the world, and 50-60 million in my country. The recycling of waste rubber is mainly waste tires. The utilization of waste rubber is conducive to protecting the environment, realizing the reuse of resources, and is conducive to the sustainable development of social economy. At present, in the recycling of waste rubber in developed countries, waste rubber powder has gradually replaced the production of reclaimed rubber. [0003] When the rubber powder is directly blended with other rubbers, the ...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L17/00C08L9/00C08L9/06C08K13/02C08J11/10
CPCY02W30/62
Inventor 王艳秋
Owner XUZHOU COLLEGE OF INDAL TECH
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