Environment-friendly regenerated rubber and preparation method

A technology of regenerated rubber and waste rubber, which is applied in the direction of plastic recycling and recycling technology, which can solve the problems of high energy consumption, high production pressure, unstable quality of regenerated rubber, etc., and achieve the effect of low energy consumption and uniform heating

Active Publication Date: 2013-08-28
CHINA RUBBER RESOURCE REGENERATION QINGDAO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] ① Potential safety hazard: high production pressure (2.5-5MPa); in order to pursue the output of a single machine, the tank body is getting bigger and bigger (2.5-7 cubic meters);
[0005] ② Low performance of regenerated rubber: due to long-term high temperature "desulfurization", thermal oxygen aging causes serious decline in the strength of regenerated rubber;
[0006] ③The quality of recycled rubber

Method used

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  • Environment-friendly regenerated rubber and preparation method
  • Environment-friendly regenerated rubber and preparation method
  • Environment-friendly regenerated rubber and preparation method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0032] The formula of waste tire rubber powder and chemical additives is as follows (parts by mass, the same below): 30 mesh waste tire rubber powder 100, regeneration activator (420 activator) 0.8, regeneration swelling agent (regenerated grease) 12, other processing aids Agent (Coumarone Resin) 1. The premixing time was 5min, the premixing temperature was 100°C, and the premixing pressure was normal pressure; the heating medium temperature of the regeneration equipment was set to 180°C, and the regeneration time was 30min.

[0033] According to the national standard GB / T 13460-2008, the performance of reclaimed rubber was detected, and the basic performance of the reclaimed rubber in this example was in line with the national reclaimed rubber A. 1 level standard.

[0034]

[0035]

example 2

[0037] Formula of waste tire rubber powder and chemical additives: 30 mesh waste tire rubber powder 100, regeneration activator (420 activator) 1.5, regeneration swelling agent (aromatic oil) 16, other processing aids (silica and modified mixture of petroleum resins) 4. The premixing time was 5min, the premixing temperature was 100°C, and the premixing pressure was normal pressure; the heating medium temperature of the regeneration equipment was set to 180°C, and the regeneration time was 30min.

[0038] According to the national standard GB / T 13460-2008, the performance of the reclaimed rubber was tested, and the basic performance of the reclaimed rubber in this example was in line with the national reclaimed rubber TA. 2 level standard.

[0039]

example 3

[0041] Waste tire rubber powder and chemical additives formula: 30 mesh waste tire rubber powder 100, regeneration activator (420 activator) 1, regeneration swelling agent (mixture of shea butter vegetable oil and aromatic oil) 20, other processing Auxiliary (mixture of light calcium, silica and coumarone resin) 6. The premixing time was 5min, the premixing temperature was 100°C, and the premixing pressure was normal pressure; the heating medium temperature of the regeneration equipment was set to 180°C, and the regeneration time was 30min.

[0042] According to the national standard GB / T 13460-2008, the performance of reclaimed rubber is tested, and the basic properties of the reclaimed rubber in this example are in line with the national reclaimed rubber A. 2 level standard.

[0043]

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PUM

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Abstract

The invention relates to a regenerated rubber and a preparation method. The method comprises the following steps of: adding 20-40-mesh waste rubber powder into a piece of heating thermal insulation high-speed mixing equipment based on 100 weight parts; adding 0.5-4 parts of regeneration activating agent, 5-30 parts of regeneration swelling agent and 1-10 parts of other processing aids, and setting the temperature of a heating medium in the regeneration equipment to 180 DEG C; feeding the premix into the device through a first opening of a waste rubber net structure reestablishing device; after incompletely-sealed normal-pressure regeneration, discharging the material from a second opening part of the device; and performing water cooling on the regenerated material in a follow-up cooling device, wherein the whole regeneration time of the material is 30 minutes.

Description

technical field [0001] The invention relates to a reclaimed rubber and a preparation method. Background technique [0002] The regeneration of waste rubber refers to the use of physical, chemical or other methods to open the S-S bond and S-C bond in the cross-linked network to regain processability, and strive to reduce the breakage of the main chain to realize the reuse of rubber. The existing waste rubber recycling technologies are classified into physical methods, chemical methods and biological methods. [0003] The current production methods of recycled rubber mainly include high temperature dynamic desulfurization method, atmospheric pressure high temperature continuous method, extrusion method, chemical treatment method, microwave method, etc. The main method currently used in our country is the high temperature dynamic desulfurization method, and the most widely used method is the dynamic desulfurization method, which has the following disadvantages: [0004] ① Pot...

Claims

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Application Information

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IPC IPC(8): C08L17/00C08J11/10
CPCY02W30/62
Inventor 沈梅谭钦艳辛振祥
Owner CHINA RUBBER RESOURCE REGENERATION QINGDAO
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