Regenerated rubber production method

Abstract

The invention provides a regenerated rubber production method. The method mainly comprises the following steps of: washing and removing impurities from waste vulcanized rubber; grinding the washed waste vulcanized rubber; and adding a regenerating agent, a softening agent or raw rubber to the ground waste vulcanized rubber, and then regenerating the mixture to obtain the finished product of the rubber. The method has the beneficial effects that the crosslink bonds among rubber molecules are broken without damaging rubber macromolecules by utilizing the substitution reaction of chemical substances; due to production at normal temperature, the destructive effects of oxygen on the rubber are greatly reduced; the plasticity of the rubber is restored by adopting the method of breaking the crosslink bonds; meanwhile, the compatibility of the rubber with the raw rubber is enhanced so that the rubber becomes a rubber compound; and the production method truly achieves wastewater-free, waste gas-free and pollution-free environment-friendly production, thus truly achieving rubber recycling.

Description

technical field [0001] The invention relates to a rubber production method, in particular to an environmentally friendly and highly efficient regenerated rubber production method. [0002] Background technique [0003] Traditional reclaimed rubber production methods, such as the water-oil method and the oil method, use high-temperature long-term oxidative cracking of vulcanized rubber and use a large amount of oil to swell vulcanized rubber to produce reclaimed rubber. The oils used are mainly coal tar, pine tar and proper Therefore, reclaimed rubber factories pollute the environment seriously, waste gas and waste water are difficult to treat, and production will also be restricted in our country. [0004] Regenerated rubber in the traditional sense uses high-temperature oxidation reaction, which not only destroys the cross-linking bonds between rubber molecules, but also degrades rubber macromolecules. The quality of regenerated rubber produced by this method is relative...

AI Technical Summary

Problems solved by technology

[0003] Traditional reclaimed rubber production methods, such as the water-oil method and the oil method, use high-temperature long-term oxidative cracking of vulcanized rubber and use a large amount of oil to swell vulcanized rubber to produce reclaimed rubber. The oils used are mainly coal tar, pine tar and proper Therefore, the reclaimed rubber factory pollutes the environment seriously, waste gas and waste water are difficult to treat, and production will also be restricted in our country

[0004] Regenerated rubber in the traditional sense uses high-temperature oxidation reaction, which not only destroys the cross-linking bonds between rubber molecules, but also degrades rubber macromolecules. The quality of regenerated rubber produced by this method is relatively low and can only be used as Low-cost filling materials are used. For example, the amount of recycled rubber in tire factories only accounts for 3-5%, or it can only be used as low-grade products such as casters and rubber sheets.

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