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Method for producing reclaimed rubber by microwave technology

A reclaimed rubber and microwave technology, applied in recycling technology, plastic recycling, etc., can solve the problems of low tensile strength, low efficiency and long time of reclaimed rubber, achieve outstanding economic and social benefits, improve production efficiency, save money energy effect

Inactive Publication Date: 2016-11-23
四川省隆昌海燕橡胶有限公司
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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 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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Each raw material and its mass parts are:

[0038] Waste rubber powder 100.00

[0039] Softener naphthenic oil 10.00

[0040] Composite activating regeneration agent 420 / M0.70

[0041] Coupling agent KH5702.00

[0042] The composite activated regenerant 420 / M is composed of activated regenerated agent 420 and activated regenerated agent M, and is formulated according to the mass ratio of regenerated agent 420:regenerated agent M=1:1.

[0043] Its preparation method, carry out as follows:

[0044] Step 1) Screening: use waste truck tires and / or engineering tires with tensile strength ≥ 25MPa and elongation at break ≥ 500%, and prepare waste rubber powder of about 20 meshes by crushing;

[0045] Step 2) Put the waste rubber powder on the open mill, add softener naphthenic oil, compound regeneration agent 420 / M, coupling agent KH570 in turn, carry out thin pass mixing for 10 minutes, and control the temperature of the open mill at 40±5 ℃, the roller distance is contro...

Embodiment 2

[0052] Each raw material and its mass parts are:

[0053] Waste rubber powder 100.00

[0054] Softener pine tar 8.00

[0055] Composite activating regeneration agent 420 / M0.50

[0056] Coupling agent KH5702.50

[0057] The composite activated regenerant 420 / M is composed of activated regenerated agent 420 and activated regenerated agent M, and is formulated according to the mass ratio of regenerated agent 420:regenerated agent M=1:1.

[0058] Its preparation method, carry out as follows:

[0059] Step 1) Screening: use waste truck tires and / or engineering tires with tensile strength ≥ 25MPa and elongation at break ≥ 500%, and prepare waste rubber powder of about 30 meshes by crushing;

[0060] Step 2) Put the waste rubber powder on the open mill, add softener pine tar, compound regeneration agent 420 / M, and coupling agent KH570 in sequence, and carry out thin-pass mixing for 10 minutes. The temperature of the open mill is controlled at 40±5°C , the roller distance is cont...

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Abstract

The invention discloses a method for producing reclaimed rubber by a microwave technology. The preparation method comprises the following steps: mixing rubber powder obtain by pulverizing waste products of which the tensile strength is greater than or equal to 25 MPa and the elongation at break is greater than or equal to 500%, a softening agent, a complex regenerant and a coupling agent to obtain preliminarily modified rubber powder; preparing microwave reclaimed rubber under the conditions that radiation frequency is 2,450 MHz, the microwave radiation power is 800-1,200 W, and the microwave radiation time is controlled in a range of 1 minute 40 seconds-2 minutes 30 sections; feeding the microwave reclaimed rubber into a cooling device immediately; and refining after cooling to obtain the reclaimed rubber.

Description

technical field [0001] The invention belongs to the field of reclaimed rubber preparation, and in particular relates to a method for producing regenerated rubber by microwave technology. 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. Conventional reclaimed rubber is currently being recycled The process needs to be carried out in a regeneration tank, which requires heating and stirring, cleaning, dehydration, refining and other processes. The equipment and processes are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/10C08L17/00
CPCC08J11/10C08J2317/00Y02W30/62
Inventor 薛长能
Owner 四川省隆昌海燕橡胶有限公司
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