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Method for preparing damping material from waste polystyrene plastic foam and waste rubber powder

A waste polystyrene and foam technology, applied in the direction of plastic recycling, recycling technology, reagents, etc., can solve the problem of high cost, long process flow, and the application that affects the resource utilization of waste polystyrene foam and waste rubber powder, etc. Problems, to achieve the effect of low production cost, simple operation process and low equipment investment

Inactive Publication Date: 2010-08-25
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of preparing the above materials is high and the process is long, which greatly affects the application of waste polystyrene foam and waste rubber powder as resources.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1. Prepare mixed solvents. Ethyl acetate and acetone were formulated as a mixed solvent for swelling waste polystyrene in a mass ratio of 4:1.

[0017] 2. Modified waste polystyrene. Put 10 grams of waste polystyrene that has been washed and dried into small pieces into a reactor, add 10 grams of the mixed solvent described in step 1, stir at normal temperature and pressure until dissolved, add 3 grams of epoxy resin, and condense at 70°C Reflux and stir evenly to obtain waste polystyrene modified material.

[0018] 3. Pretreatment of waste rubber powder. Plasticize the waste rubber powder on the open mill for 15 minutes, and use the shear force of the open mill to break and tear the rubber powder particles into small molecular segments.

[0019] 4. Mixing process. Take 100 grams of pretreated waste rubber powder, add the waste polystyrene modified material described in step 2, 5 grams of tackifier, 0.5 grams of anti-scorch agent, 0.5 grams of anti-aging agent, 1 gr...

Embodiment 2

[0022] 1. Prepare mixed solvents. Ethyl acetate and acetone were formulated as a mixed solvent for swelling waste polystyrene in a mass ratio of 3:1.

[0023] 2. Modified waste polystyrene. Put 15 grams of waste polystyrene that has been washed and dried into small pieces into the reactor, add 20 grams of the mixed solvent described in step 1, stir at normal temperature and pressure until dissolved, add 5 grams of epoxy resin, and condense at 70°C Reflux and stir evenly to obtain waste polystyrene modified material.

[0024] 3. Pretreatment of waste rubber powder. Plasticize the waste rubber powder on the open mill for 15 minutes, and use the shear force of the open mill to break and tear the rubber powder particles into small molecular segments.

[0025] 4. Mixing process. Take 100 grams of pretreated waste rubber powder, add the waste polystyrene modified material described in step 2, 5 grams of tackifier, 0.5 grams of anti-scorch agent, 0.5 grams of anti-aging agent, 1 ...

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PUM

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Abstract

The invention relates to a method for preparing a damping material through waste polystyrene foam plastics and waste gelatine powder. The method can prepare environmental functional material products with excellent damping characteristics through the processes of preparing a mixed solvent, modifying the waste polystyrene foam plastics, preprocessing the waste gelatine powder, milling and curing. The method which has a simple process, low production cost and little equipment investment is an ideal way to comprehensively utilizing the waste polystyrene foam plastics and waste gelatine powder and changing the waste into the valuable. As the products prepared through the method have good safety, a wider frequency damping platform area and a temperature damping platform area, the products are applicable to the damping and acoustic insulation for vehicles, ships, engineering machineries, buildings, etc. Specific products can also be made through determining the parameters of the damping products according to the actual demand.

Description

technical field [0001] The invention relates to a method for manufacturing damping materials by using waste polystyrene foam plastics and waste rubber powder, especially a method for preparing environmental functional materials with excellent damping properties by using waste polystyrene and waste rubber. Background technique [0002] The amount of waste polystyrene and waste rubber produced in my country every year is huge, which are called "white garbage" and "black garbage", which can neither rot and transform nor degrade and disappear by themselves. The landfill and incineration treatment methods used in the past not only pollute the environment, but also waste resources, which no longer meet the requirements of the development of a modern conservation-oriented society. How to recycle waste polystyrene foam plastics and waste rubber reasonably and effectively has aroused the general attention of scientific researchers in my country and all over the world. There have bee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C35/02C08J11/04B29K25/00C08L21/00B29B7/00B29B11/00C08L25/06B29K21/00C08L63/00
CPCY02P20/143Y02W30/62
Inventor 徐泳文李明俊楚合磊孙艳平曾桂生
Owner NANCHANG HANGKONG UNIVERSITY