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Method for preparing environment-friendly white fine renewable rubber

A technology of recycled rubber and production methods, applied in recycling technology, plastic recycling, etc., can solve the problems of coarse white recycled rubber particles, product application restrictions, environmental pollution, etc., to achieve smooth and delicate appearance, wide application range, wear-resistant. strong 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

At present, domestic manufacturers usually use heavy oil as a softener in the production process of white regenerated rubber. During the production process, sewage that is difficult to treat will be generated. Pollution to the environment during transportation and use will also lead to great restrictions on the application of products

Method used

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  • Method for preparing environment-friendly white fine renewable rubber
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  • Method for preparing environment-friendly white fine renewable rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A production method of environmentally friendly white fine regenerated rubber: use waste white soles and white scraps as raw materials, select and cut them, remove metals, impurities and other rubber types, and obtain white clean rubber; use a pulverizer to grind the white clean rubber Grinding and pulverizing into white rubber powder with a particle size of 0.18-0.425 mm, the temperature of the roller of the pulverizer is controlled at 80-100 °C, and the roller distance is set at 0.25 mm; 120 parts by weight of white rubber powder, 5 parts of tall oil Parts, 0.6 parts of 420 activator, and 18 parts of water are put into the microcomputer automatic control desulfurization tank, and the mixer is turned on for stirring; steam is introduced, and the steam pressure in the tank rises from the initial 1.0Mpa to 2.0-2.2Mpa, and the temperature is 200-220 Keep warm for 120 minutes under the condition of ℃; then reduce the pressure in the tank to 0Mpa, open the valve to unload, a...

Embodiment 2

[0023] A production method of environmentally friendly white fine regenerated rubber: use waste white soles and leftover white as raw materials, select and cut them, remove metals, impurities and other rubber types, and obtain white clean rubber; use a pulverizer to grind the white clean rubber Grinding and pulverizing into white rubber powder with a particle size of 0.18-0.425mm, the temperature of the roller of the pulverizer is controlled at 80-100°C, and the roller distance is set at 0.3mm; 100 parts by weight of white rubber powder, 5.6 parts of tall oil 0.5 parts, 0.5 parts of 420 activators, and 21 parts of water are put into the microcomputer automatic control desulfurization tank, and the mixer is turned on for stirring; steam is introduced, and the steam pressure in the tank rises from the initial 1.0Mpa to 1.5-2.0Mpa, and at a temperature of 190-210 Keep warm for 130 minutes under the condition of ℃; then reduce the pressure in the tank to 0Mpa, open the valve to dis...

Embodiment 3

[0028] A production method of environmentally friendly white fine regenerated rubber: use waste white soles and leftover white as raw materials, select and cut them, remove metals, impurities and other rubber types, and obtain white clean rubber; use a pulverizer to grind the white clean rubber Grinding and pulverizing into white rubber powder with a particle size of 0.18-0.425mm, the temperature of the roller of the pulverizer is controlled at 80-100°C, and the roller distance is set at 0.2mm; 140 parts by weight of white rubber powder, 4 parts of tall oil Parts, 0.7 parts of 420 activator, and 15 parts of water are put into the computer automatic control desulfurization tank, and the mixer is turned on for stirring; steam is introduced, and the steam pressure in the tank rises from the initial 1.0Mpa to 1.8-2.2Mpa, and the temperature is 210-230 Keep warm for 110 minutes under the condition of ℃; then reduce the pressure in the tank to 0Mpa, open the valve to discharge the ma...

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Abstract

The invention relates to a method for preparing environment-friendly white fine renewable rubber. The method comprises the following steps: taking white footwear vulcanized rubber as the raw material, and preparing the environment-friendly white 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 white renewable rubber, and also improves the operating methods of the procedures of crushing, kneading, filtering, refining and the like. The obtained environment-friendly white fine renewable rubber has small and smooth grains and no odors, and the chemical and physical property indexes of the environment-friendly white 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 white fine regenerated rubber. Background technique [0002] With the rapid development of the rubber industry and the wide application of rubber products, a large amount of waste vulcanized rubber will be produced every year. Due to the good physical and chemical stability of rubber, the discarded rubber products cannot be naturally degraded for a long time, and burning will produce toxic gas, causing environmental pollution and wasting precious rubber resources. The use of waste vulcanized rubber to produce recycled rubber is not only conducive to environmental protection, but also beneficial to the rational use of resources. [0003] The recycling process of waste vulcanized rubber is usually a process in which part of the molecular chains and cross-linking points of vulcanized rubber are broken under the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/18
CPCY02W30/62
Inventor 严国民蒲晓宏林正容
Owner FUJIAN HUANKE CHEM RUBBER GROUP
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