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Waste styrene-butadiene rubber/polystyrene composite material

A technology of styrene-butadiene rubber and polystyrene, which is applied in the fields of rare earth metal compounds, inorganic chemistry, chemical instruments and methods, etc., can solve problems such as poor performance, polluting the environment, and poor compatibility, and achieves good comprehensive mechanical properties and excellent preparation process Simple, compatibility-enhancing effects

Inactive Publication Date: 2016-07-20
TIANJIN BINPU PRODIVITY PROMOTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are three main ways to recycle waste rubber: the first method is to reuse the waste rubber products without changing the original shape or slightly reforming them, such as tire retreading; the second method is to process them into reclaimed rubber and waste rubber powder. The method is widely used, and the reclaimed rubber and waste rubber powder produced can be used to produce various rubber products; the third method is to thermally decompose and burn waste rubber, which requires a large initial investment
The three methods have their own advantages and disadvantages. In comparison, reclaimed rubber and waste rubber powder are the most valuable to use, and are preferred. Due to the disadvantages of low production efficiency, poor performance, large energy consumption, and environmental pollution in the production process of reclaimed rubber , has been phased out. At present, waste rubber powder is mainly produced in China, and the output of waste rubber powder is relatively large.
However, because the waste rubber powder is in a cross-linked state, the compatibility between the waste rubber powder and the matrix plastic is poor, which affects the mechanical properties of the composite material. The key to solving the problem is to add compatibilizing additives to improve the interfacial compatibility between the two It is beneficial to improve the comprehensive mechanical properties of composite materials

Method used

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  • Waste styrene-butadiene rubber/polystyrene composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of waste and old styrene-butadiene rubber / polystyrene composite material, its composition and quality are:

[0020] Polystyrene 60Kg,

[0021] Waste styrene-butadiene rubber powder 40Kg,

[0022] Rare earth modifier 1Kg,

[0023] SBS3Kg.

[0024] Add polystyrene, waste styrene-butadiene rubber powder, SBS and rare earth modifier into a high-speed mixer and mix for 10 minutes, then extrude and granulate with a twin-screw extruder to obtain waste styrene-butadiene rubber / polystyrene composite pellets , and finally molded into test specimens by plastic injection, and tested for mechanical properties. The tensile properties were tested according to GB / T16421-1996, the impact properties were tested according to GB / T1043-1993, and the hardness was tested according to GB / T9342-1988. At the same time, a comparative experiment was designed, using 60Kg polystyrene and 40Kg waste styrene-butadiene rubber powder to prepare test specimens according to the above preparation...

Embodiment 2

[0028] A kind of waste and old styrene-butadiene rubber / polystyrene composite material, its composition and quality are:

[0029] Polystyrene 80Kg,

[0030] Waste styrene-butadiene rubber powder 20Kg,

[0031] Rare earth modifier 0.5Kg,

[0032] SBS1Kg.

[0033] Add polystyrene, waste styrene-butadiene rubber powder, SBS and rare earth modifier into a high-speed mixer and mix for 10 minutes, then extrude and granulate with a twin-screw extruder to prepare waste styrene-butadiene rubber / polystyrene composite material.

Embodiment 3

[0035] A kind of waste and old styrene-butadiene rubber / polystyrene composite material, its composition and quality are:

[0036] Polystyrene 40Kg,

[0037] Waste styrene-butadiene rubber powder 60Kg,

[0038] Rare earth modifier 1.5Kg,

[0039] SBS6Kg.

[0040] Add polystyrene, waste styrene-butadiene rubber powder, SBS and rare earth modifier into a high-speed mixer and mix for 10 minutes, then extrude and granulate with a twin-screw extruder to prepare waste styrene-butadiene rubber / polystyrene composite material.

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Abstract

The invention provides a waste styrene-butadiene rubber / polystyrene composite material. The material is composed of, by weight, 30-80 parts of polystyrene, 10-60 parts of waste styrene-butadiene rubber, 0.1-2 parts of a rare earth modifier, and 1-10 parts of SBS. According to the invention, the rare earth modifier is added, and a certain amount of SBS is added as a compatibilizing component, such that the compatibility of waste styrene-butadiene rubber and polystyrene plastic is improved. The prepared composite material has good comprehensive mechanical performance and low cost. The preparation process is simple.

Description

technical field [0001] The invention relates to the field of recycling waste rubber powder resources, in particular to a waste styrene-butadiene rubber / polystyrene composite material. Background technique [0002] With the rapid development of the petroleum industry, the use of rubber is increasing year by year, and the amount of waste rubber is also increasing year by year. If these solid wastes cannot be recycled and reused in a timely and efficient manner, resources will be wasted and environmental pollution will be caused. Now, waste rubber has become one of the worldwide garbage problems, and its recycling has been paid more and more attention by various countries. There are three main ways to recycle waste rubber: the first method is to reuse the waste rubber products without changing the original shape or slightly reforming them, such as tire retreading; the second method is to process them into reclaimed rubber and waste rubber powder. The method is widely used, and...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L9/06C08L53/02C01F17/00
Inventor 孟庆昌
Owner TIANJIN BINPU PRODIVITY PROMOTION