Recycling of waste rubber recycling


Recycling of waste rubber recycling 1. Source of waste rubber Waste rubber is a kind of solid waste. There are also many types of waste rubber. There are two main sources: scrapped Rubber Products such as tires, tapes, hoses, rubber shoes and Industrial groceries, etc., which are mainly used tires; in addition, the rubber factory produces rubber scraps and waste products in the rubber product production process.
The use of waste rubber is mainly divided into two categories: direct utilization and physical and chemical processing. Direct use is mainly used for tire renovation, soil and water conservation, ship fenders, sports and entertainment, track buffering and construction ash buckets. The physicochemical processing is mainly used for the production of rubber powder, recycled rubber, rubber asphalt, thermal cracking and direct fuel use.
China is a big rubber application country. The recycling and utilization of waste rubber is of great significance. At present, it consumes nearly 6 million tons of raw rubber, ranking first in the world. It is also a country with a shortage of rubber resources, almost 45% of rubber consumption per year. Imports are needed, and this situation is difficult to change in a short period of time. Therefore, it is of great significance to properly dispose of used rubber to make full use of renewable resources, to get rid of the scarcity of natural resources, reduce environmental pollution, and improve our living environment. The main direction of recycling domestic waste rubber is the production of rubber powder and recycled rubber.
1. 3. 1 Production and application prospects of waste rubber recycling resources The main method of recycling waste rubber is to produce recycled rubber and rubber powder. Due to the shortcomings of production of recycled rubber, such as high energy consumption, low production efficiency, polluted environment and long process flow, industrial developed countries have basically stopped production, mainly to produce rubber powder. Domestic recycled rubber production still ranks first, with little change in the short term, but in the long run, rubber powder will be the development direction of recycling of used rubber. China is the world's largest producer of recycled rubber. It has nearly S00 production companies with a total production capacity of more than 3 million years and an annual output of 2.45 million tons. The production of rubber powder has just started. There are about 40 existing manufacturers, and the total annual output is about 250,000 tons. The production and application are far from the advanced countries in the world. According to the laws governing the development of the world economy, in order to meet the increasingly stringent requirements of environmental protection, China should make fundamental adjustments to the direction and way out of the development of the recycled rubber industry as soon as possible. The production and application of rubber powder is one of the most promising and in line with China's national conditions, and should be applied and developed.
The production method of the rubber powder mainly includes three methods of normal temperature pulverization, low temperature pulverization, wet or solution pulverization. Due to the different materials, equipment, freezing media, production technology, process conditions, etc., the quality, output, production efficiency and economic status of the rubber powder in the rubber powder production are different. Regardless of the method used to produce the rubber powder, the common purpose is whether it can be applied to industrial production and bring economic benefits to the enterprise. The normal temperature pulverization method is the main method for the production of rubber powder. In the future, in the future, in the total production of rubber powder, the normal temperature pulverization method will still dominate the rubber powder.
The production of rubber powder has gone through the development process from coarse to fine, from ordinary rubber powder, fine rubber powder, fine superfine rubber powder to modified rubber powder. A certain particle size of the rubber powder is limited in its dosage in the polymer substrate under certain performance requirements (especially in rubber substrates). To improve the dosage of the rubber powder to exert its application value, it is necessary to modify the rubber powder. The modified rubber powder not only can greatly increase the dosage, improve the compatibility with the matrix material, but also improve the tensile properties, fatigue heat generation, tear resistance and wear resistance of the rubber compound. The application range of rubber powder instead of rubber has improved the processing technology of the rubber compound.



Article from Hong Kong Plastics Recycling http://ProShow-29.aspx

Product Description
PTFE Film
•Material: 100% virgin PTFE, no recycle.
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