Recycling method for waste silicone rubber material by radiation method

A silicone rubber, recycling technology, applied in recycling technology, chemical instruments and methods, plastic recycling, etc., can solve the problems of environmental pollution, high energy consumption, etc., reduce production costs, easy to operate, solve space occupation and pollution environmental effects

Active Publication Date: 2019-01-18
SOUTHWEAT UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the development and progress of the national economy, the application field of silicone rubber materials is constantly expanding, and its consumption is also increasing day by day, and the volume of waste silicone rubber materials

Method used

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  • Recycling method for waste silicone rubber material by radiation method
  • Recycling method for waste silicone rubber material by radiation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for reusing waste silicone rubber materials by radiation method, including the following steps:

[0023] Step 1: Clean and dry the recovered solid rubber scraps of vulcanized silicone rubber;

[0024] Step 2. Spread the dried solid rubber scraps of vulcanized silicone rubber on a stainless steel stand and place them in the cobalt source gamma irradiation field to make the accumulated absorbed dose reach 1.0MGy, and the material will be removed during the irradiation Turn it once to ensure that the bottom material can receive enough radiation of the accumulated absorbed dose, take it out and put it in an open mill for repeated crushing for 30 minutes, and properly sieving to obtain micron-sized silicon rubber powder.

Embodiment 2

[0026] A method for reusing waste silicone rubber materials by radiation method, including the following steps:

[0027] Step 1. Clean and dry the recycled silicone rubber foam;

[0028] Step 2. Spread the dried silicone rubber foam on a stainless steel stand, place it in an electron accelerator and irradiate it to make the cumulative absorbed dose reach 1.0MGy, and turn the material three times during the irradiation process, take it out and put it in It is crushed in a planetary ball mill for 20 minutes and sieved appropriately to obtain micron-sized silicon rubber powder.

Embodiment 3

[0030] A method for reusing waste silicone rubber materials by radiation method, including the following steps:

[0031] Step 1: Clean and dry the recycled solid rubber scraps of vulcanized silicone rubber, waste silicone rubber foam, and raw silicone rubber to obtain a mixture;

[0032] Step 2. Spread the dried mixture on a stainless steel stand, place it in the cobalt source gamma irradiation field to make the accumulated absorbed dose reach 1.2MGy, and turn the material over once during the irradiation process and take it out Put it into a planetary ball mill and pulverize for 10 minutes, and sieve appropriately to obtain micron-sized silicon rubber powder.

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Abstract

The invention discloses a recycling method for a waste silicone rubber material by a radiation method. The method is characterized by comprising the following steps: S1, cleaning and drying a recovered waste silicone rubber material; and S2, putting the dried waste silicone rubber material in a radiation field to be radiated for a certain time, taking out the waste silicone rubber material to crush, and screening the waste silicone rubber material to obtain silicone rubber micropowder used as fortifying filler. By means of a radiation technique, the method is simple to operate and energy-saving and environment-friendly. Meanwhile, no wastes are generated substantially, the recovered waste silicone rubber material can be recycled highly, and a scaled effect is easy to realize. The finally obtained silicone rubber micropowder can be used as the fortifying filler for preparing a silicone rubber material product, so that the production cost of producing the silicone rubber product is reduced. Meanwhile, the problem of space usage and environmental pollution as the waste silicone rubber material which is abandoned is hardly degraded naturally is solved.

Description

Technical field [0001] The invention belongs to the technical field of silicon rubber material reuse, and specifically relates to a radiation method reuse method of waste silicon rubber materials. Background technique [0002] Because silicone rubber has excellent properties such as resistance to a wide temperature range, and the price is relatively high, the reuse of waste silicone rubber materials (including waste rubber, waste vulcanized leftovers, trimmings, foam, solid rubber and other waste products) is useful for saving natural resources, Reducing production costs and weakening environmental pollution are of great economic significance. [0003] At present, the main technological processes for the recycling of waste silicone rubber materials include: cleaning, impurity removal, drying, dicing, cracking, and refining. That is, the waste products are first cleaned, impurities are removed and dried, and then sorted, cut into small pieces, sent to pyrolysis, and finally refined...

Claims

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Application Information

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IPC IPC(8): C08J11/10C08L83/04C11D1/66C11D3/20C11D3/30C11D3/28C11D3/36C11D3/60
CPCC08J11/10C08J2383/04C11D1/662C11D3/2086C11D3/28C11D3/30C11D3/362Y02W30/62
Inventor 宋宏涛张行泉高小铃李闯安友霍冀川
Owner SOUTHWEAT UNIV OF SCI & TECH
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