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Production method of environment-friendly reclaimed rubber

A production method and technology of reclaimed rubber, which is applied in the field of reclaimed rubber production, can solve problems such as endangering workers' health, high equipment requirements, and polluting the environment, and achieve the effects of improving processing performance, reducing pungent odor, and increasing compatibility

Inactive Publication Date: 2019-07-02
BEIJING RES & DESIGN INST OF RUBBER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires high equipment and large investment
Moreover, during the regeneration process, due to the high temperature, the odor produced by the added softener, activator, etc. pollutes the environment and endangers the health of workers.

Method used

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  • Production method of environment-friendly reclaimed rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 100 parts of 20-mesh waste rubber powder, 15 parts of environmentally friendly aromatic oil, 0.3 part of activator bispentamethylene thiuram tetrasulfide, 1 part of nano-zinc oxide, and 0.1 part of polyethylene glycol under the condition of 3000 rpm Stir for 10 minutes to mix evenly; put the stirred mixture into an internal mixer for activation and regeneration, control the temperature at 120-150°C, and regenerate for 15 minutes; Cool to make reclaimed rubber.

Embodiment 2

[0027] Mix 100 parts of 40 mesh waste rubber powder, 7 parts of environmentally friendly aromatic hydrocarbon oil, 5 parts of corn oil, 0.5 part of activator bispentamethylene thiuram tetrasulfide, 1.5 parts of nano-zinc oxide, and 0.3 parts of polyethylene glycol at 3000 rpm Stir for 10 minutes and mix well under the condition of 1 / min; put the stirred mixture into the internal mixer for activation and regeneration, control the temperature at 120-150°C, and regenerate for 15 minutes; -75°C, then cooled to make reclaimed rubber.

Embodiment 3

[0029] Put 100 parts of 60-mesh waste rubber powder, 10 parts of rapeseed oil, 1 part of activator bispentamethylene thiuram tetrasulfide, 1.5 parts of nano-zinc oxide, and 0.3 parts of polyethylene glycol under the condition of 3000 rpm Stir for 10 minutes to mix evenly; put the stirred mixture into an internal mixer for activation and regeneration, control the temperature at 120-150°C, and regenerate for 15 minutes; Cool to make reclaimed rubber.

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Abstract

The invention discloses a production method of environment-friendly reclaimed rubber. The raw materials are as the follows in parts by mass: 100 parts of waste rubber powder, 0.3-2 parts of an activator, 8-15 parts of bentonite, 1-3 parts of nano zinc oxide and 0.1-0.5 part of polyethylene glycol. The production method comprises the following steps: uniformly mixing the waste rubber powder, the bentonite, the activator, the nano zinc oxide and the polyethylene glycol by mechanic stirring according to the proportion, then adding the mixture into an internal mixer, and carrying out activation and reclamation for 15-20 minutes at a temperature of 120-150 DEG C, and finally, carrying out thin-passing on a open mill for 10-15 times to prepare the reclaimed rubber. The beneficial effects of theproduction method are as follows that generation of pungent smell is effectively reduced, environment protection is achieved, pollution is avoided, and processing performance of the reclaimed rubber is improved.

Description

technical field [0001] The invention belongs to the technical field of reclaimed rubber production, and relates to a production method of environment-friendly regenerated rubber. Background technique [0002] Reclaimed rubber is one of the rubber resources, and it is also the main way to utilize waste rubber in my country. Widely used in various rubber products, tires and rubber shoes and other products. Reclaimed rubber not only alleviates the shortage of resources, but also reduces the environmental pollution caused by waste rubber. [0003] Waste rubber regeneration refers to the use of physical, chemical or other methods to restore vulcanized rubber to an unvulcanized state, that is, to open the S-S bond and C-S bond without destroying the C-C bond, and to selectively destroy the three-dimensional network structure of the rubber without causing macromolecular chains. To realize the reuse of vulcanized rubber. [0004] At present, the production of reclaimed rubber mai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L17/00C08L91/00C08L71/02C08K3/22C08K5/40
CPCC08K2003/2296C08K2201/011C08L17/00C08L2205/03C08L91/00C08L71/02C08K3/22C08K5/40
Inventor 王婷曲敖廷陈宏
Owner BEIJING RES & DESIGN INST OF RUBBER IND