Method for recycling post-industrial recycling waste plastic

A recycling method and waste plastic technology, applied in the direction of plastic recycling, mechanical material recycling, recycling technology, etc., can solve the problems of inappropriateness and low utilization value, achieve high performance retention rate, compact and complete process method, and avoid performance degradation Effect

Active Publication Date: 2012-07-18
大河宝利材料科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention aims to overcome the problem that PIR waste plastics in the prior art are not suitable for manufacturing products with high performance requirements due to the simple recycling method, resulting in low utilization value To solve the problem, provide a recycling method that can maintain the performance of PIR waste plastics to the greatest extent, so as to improve the utilization value of PIR

Method used

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  • Method for recycling post-industrial recycling waste plastic
  • Method for recycling post-industrial recycling waste plastic
  • Method for recycling post-industrial recycling waste plastic

Examples

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Effect test

Embodiment 1

[0047] The PIR polycarbonate material of embodiment 1 is selected from the mixture of modified materials such as polycarbonate containing flame retardant, polycarbonate / acrylonitrile-butadiene-styrene copolymer (mainly derived from components such as electrical housings) Manufacturer company).

Embodiment 2

[0048] The PIR polycarbonate material of embodiment 2 is selected from the mixture ( Mainly from manufacturers of laptop casings and other components).

Embodiment 3

[0049] The PIR polycarbonate material of Example 3 is selected from a mixture of polycarbonate modified materials containing mineral fillers, glass fibers, metal coatings, etc. (mainly sourced from manufacturers of automotive parts).

[0050] The physical and chemical properties of table 1 PIR polycarbonate material before and after granulation through the recovery method of the present invention are contrasted

[0051]

[0052] As can be seen from the above table, the performance of the material does not change substantially, which shows that the recovery method of the present invention can make the material have a very high performance retention rate when recycling the PIR polycarbonate material.

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Abstract

The invention discloses a method for recycling a post-industrial recycling waste plastic, which is mainly used for recycling wastes such as gate materials, leftover materials, imperfect products and outmoded products in the production machining process of manufacturing a plastic product. The method provided by the invention comprises the following steps of: primary separation of a vibration screen, secondary separation of a metal separator, drying of a hot drier, blending, granulation and post-treatment of a full-engaged homonymous dual-screw extruder. With the adoption of the method disclosed by the invention, the problem of bad properties of a recycled material, caused by the traditional recycling manner, can be better avoided, the process method is compact and complete, and the continuous operation can be realized. The blending and plastification process can be completed by using the full-engaged homonymous dual-screw extruder with small cutting force and high exhaust effects, so that the problem that the waste plastic is easy to degrade during a fusion and plastification process is solved. Therefore, the recycled material product has a very high property retention rate.

Description

technical field [0001] The invention belongs to the field of recycling and recycling of plastics, and in particular relates to an industrial recycling of gate materials, leftover materials, defective products and obsolete products produced by plastic processing manufacturers when manufacturing plastic products, etc., which do not enter the terminal consumer market Recycling methods of waste plastic. Background technique [0002] The regeneration and recycling of materials can realize the full utilization of resources, reduce the discharge of pollutants, and reduce the process cost of terminal treatment, which is an important direction for the development of the material field. For waste plastics, waste plastics can be divided into post-Industrial recycling (PIR for short) and post-Consumer recycling (PCR for short) according to the production or application process where the plastics enter. Specifically, PIR refers to those plastics that are separated or recovered from soli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B17/04B29B17/02B29B9/06B29B9/16
CPCY02W30/52Y02W30/62
Inventor 罗煜郭旭平倪少勇
Owner 大河宝利材料科技(苏州)有限公司
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