Microwave radiation reclaiming method for environment-friendly high-strength reclaimed rubber

A technology of high-strength reclaimed rubber and microwave radiation, which is applied in the field of waste rubber regeneration

Inactive Publication Date: 2012-08-15
XUZHOU COLLEGE OF INDAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current regeneration process time of conventional reclaimed rubber is generally about 4 hours, and the steam pressure is about 1MPa, which takes a long time and low efficiency
The tensile strength of conventional reclaimed rubber is low, generally 5-8MPa

Method used

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Experimental program
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Effect test

Embodiment 1

[0024] 1. The formula of waste rubber powder microwave reclaimed rubber:

[0025] Raw material name Mass parts

[0026] 9.00-20 Heavy-duty tire crown preparation 20 mesh rubber powder 100.00

[0027] Softener Rosin 12.00

[0028] Regenerant dipentene 0.40.

[0029] 2. Microwave reclaimed rubber performance testing formula:

[0030] Raw material name Mass parts

[0031] Microwave reclaimed rubber 100.00

[0032] Accelerator NS 2.80

[0033] Zinc oxide (indirect method, primary) 2.50

[0034] Sulfur 1.20

[0035] Stearic acid 0.33.

[0036] Preparation :according to figure 1 The process flow diagram shown and figure 2 The flow chart of the microwave regeneration equipment is shown, the raw materials are weighed according to the proportion, and the dried waste rubber tire crown rubber powder with a particle size of 20 mesh, rosin and regeneration agent dipentene are automatically measured and weighed according to the ratio in the following formula Device 1 weighs a...

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Abstract

The invention discloses a microwave radiation reclaiming method for environment-friendly high-strength reclaimed rubber, and belongs to the technical field of waste rubber reclaiming. The method comprises the following steps of: mixing waste rubber outer tire crown powder with the particle size of 20 meshes, rosin and dipentene according to a certain proportion; uniformly feeding the materials with a certain thickness on a roller way conveying device; determining the length of a roller way according to microwave radiation time; arranging a high-frequency microwave radiation device on the roller way; conveying the materials on the roller way for reclaiming the materials by microwave radiation during conveying; continuously putting the reclaimed rubber materials into a cooling device through the roller way; directly discharging the cooled materials to an open mill for performing refining, wherein the refining temperature is controlled to be 35-50 DEG C; and refining at low temperature on the open mill for 20 minutes to obtain a refined rubber sheet with smooth surface and uniform texture. A test result shows that the tensile strength of the reclaimed rubber is more than 18MPa, the breaking elongation is over 400%, and the Weigert plasticity is 0.35-0.45. The microwave radiation reclaiming method has the advantages of environment friendliness, short reclaiming time, low reclaiming temperature, energy conservation and high production efficiency.

Description

technical field [0001] The invention relates to a microwave radiation regeneration method for environmentally friendly high-strength regenerated rubber, which belongs to the field of waste rubber regeneration. It is suitable for the environmental protection regeneration of rubber powder prepared from the crown part of the tread rubber of the truck tire. 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 scrap volume of automobile tires in the world is more than 1 billion, and that in my country is 50-60 million. The recycling of waste rubber is mainly waste tires, and others include waste rubber shoes and inner tubes, etc. 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. [0003] Conventional reclaimed rubber currently needs to be regenera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/10C08J3/28C08L17/00
CPCY02W30/62
Inventor 王艳秋张恒中周立雪寇景刘太闯姚亮
Owner XUZHOU COLLEGE OF INDAL TECH
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