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Method for preparing environment-friendly red fine renewable rubber

A technology of regenerated rubber and production methods, applied in recycling technology, plastic recycling, etc., can solve problems such as high desulfurization pressure, long desulfurization time, difficult to treat sewage, etc., achieve good plasticity and softness, low desulfurization steam pressure, and good appearance Smooth and delicate effect

Inactive Publication Date: 2010-01-27
FUJIAN HUANKE CHEM RUBBER GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the common production process of red recycled rubber, high desulfurization pressure and long desulfurization time are usually required, and difficult-to-treat sewage will be generated during the production process, and the obtained ordinary red recycled rubber products have coarse particles and severe odor , not only pollute the environment during the transportation and use of the product, but also cause great restrictions on the application of the product

Method used

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  • Method for preparing environment-friendly red fine renewable rubber

Examples

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Comparison scheme
Effect test

Embodiment 1

[0019] A production method of environment-friendly red fine regenerated rubber: use waste red shoe soles and red scraps as raw materials, select them, cut off impurities such as patches and copper nozzles, clean and drain, and then use a pulverizer to grind and pulverize them into particles with a particle size of For 0.18-0.425mm red rubber powder, the temperature of the pulverizer roller is controlled at 80-100°C, and the roller distance is set at 0.25mm; 75 parts by weight of red rubber powder, 5 # Add 2.5 parts of rubber oil, 3 parts of white rosin, and 9 parts of water into the computer regeneration tank, start the mixer to stir, and feed steam, the steam pressure in the tank rises from the initial 0.6Mpa to 1.7-1.9Mpa, and the pressure holding time is 40 minutes; After the time is up, reduce the pressure in the desulfurization tank to 0Mpa, open the valve to discharge the material and cool it quickly; use two mills to refine the desulfurized and cooled rubber material for...

Embodiment 2

[0023] A production method of environment-friendly red fine regenerated rubber: use waste red shoe soles and red scraps as raw materials, select them, cut off impurities such as patches and copper nozzles, clean and drain, and then use a pulverizer to grind and pulverize them into particles with a particle size of For 0.18-0.425mm red rubber powder, the temperature of the pulverizer roller is controlled at 80-100°C, and the roller distance is set at 0.3mm; 100 parts by weight of red rubber powder, 5 # Add 4 parts of rubber oil, 2 parts of white rosin, and 8 parts of water into the computer regeneration tank, turn on the mixer to stir, and feed steam, the steam pressure in the tank rises from the initial 0.6Mpa to 1.8-2.0Mpa, and the pressure holding time is 35 minutes; After the time is up, the pressure in the desulfurization tank is reduced to 0Mpa, and the valve is opened to discharge the material and cooled rapidly; the rubber material after desulfurization and cooling is re...

Embodiment 3

[0027] A production method of environment-friendly red fine regenerated rubber: use waste red shoe soles and red scraps as raw materials, select them, cut off impurities such as patches and copper nozzles, clean and drain, and then use a pulverizer to grind and pulverize them into particles with a particle size of For 0.18-0.425mm red rubber powder, the temperature of the pulverizer roller is controlled at 80-100°C, and the roller distance is set at 0.2mm; 50 parts by weight of red rubber powder, 5 # Add 1 part of rubber oil, 4 parts of white rosin, and 10 parts of water into the computer regeneration tank, turn on the mixer to stir, and feed steam, the steam pressure in the tank rises from the initial 0.6Mpa to 1.6-1.8Mpa, and the pressure holding time is 45 minutes; After the time is up, reduce the pressure in the desulfurization tank to 0Mpa, open the valve to discharge the material and cool it quickly; use two mills to refine the desulfurized and cooled rubber material 10 t...

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Abstract

The invention relates to a method for preparing environment-friendly red fine renewable rubber. The method comprises the following steps: taking red rubber inner tube as the raw material, and preparing the environment-friendly red fine renewable rubber after carrying out selection, impurity removing, crushing, desulfuration, kneading, filtering, refining, forming and other procedures. The invention improves desulfuration formula and desulfuration process conditions during the production of the red renewable rubber, and also improves the operating methods of the procedures of crushing, kneading, refining and the like. The obtained environment-friendly red fine renewable rubber has small and smooth grains and no odors, and the chemical and physical property indexes of the environment-friendly red fine renewable rubber meet the GB / T 13460-2008 requirement.

Description

technical field [0001] The invention relates to the technical field of regeneration of vulcanized rubber, in particular to a production method of environment-friendly red fine regenerated rubber. Background technique [0002] Due to the wide application of rubber in various fields, more and more waste rubber products are produced, and a large amount of waste rubber has brought serious environmental pollution to the society. In order to make full use of rubber resources and reduce environmental pollution, the use of waste rubber to prepare recycled rubber has been valued by various countries. The recycling of waste vulcanized rubber can not only protect the environment but also make full use of resources, and has good social and economic benefits. [0003] Regenerated rubber is waste vulcanized rubber that undergoes physical and chemical processes such as crushing, adding chemical additives, heating, and mechanical treatment to make it change from an elastic state to a plast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/18
CPCY02W30/62
Inventor 严国民李红陈世华
Owner FUJIAN HUANKE CHEM RUBBER GROUP
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