Method for depolymerization purification of TPA by using polyester waste textiles and modifying by adding blow-molding-grade HDPE

A polyester and modified technology, applied in the field of new alloy materials for blow molding, can solve the problems of landfill or incineration, inability to directly reprocess, waste of land resources and secondary pollution, etc.
CN110358167AInactive Publication Date: 2019-10-22PLASTIC UNION NEW MATERIAL TECH HUBEI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
PLASTIC UNION NEW MATERIAL TECH HUBEI
Publication Date
2019-10-22
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a method for carrying out chemical depolymerization purification on TPA by using polyester waste textiles and modifying by adding a blow-molding-grade HDPE material to obtain anew alloy blow molding material. According to the method, polyester waste textiles are subjected to depolymerization, filtration, decolorization and purification by using glycerin residue heated to atemperature of 260-280 DEG C to form TPA, a compatibilizer and other modification auxiliary agents are added, a blow-molding-grade HDPE material is added according to a certain ratio, and uniform mixing and extruding granulation are sequentially performed to obtain the new special alloy material for TPA / HDPE blow molding.
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Description

technical field

[0001] The invention discloses a method for modifying polyester waste textiles into new special alloy materials for blow molding by chemical depolymerization and purification of TPA and blow molding grade HDPE material.

[0002] technical background

[0003] As we all know, except for a very small amount of existing waste textiles that are used by people using physical methods, they can neither be reused nor directly reprocessed after recycling, and can only be landfilled or incinerated. Not only wasting land resources but also causing secondary pollution. Contents of the invention

[0004] The purpose of the present invention is in order to overcome the defective of above-mentioned background technology, not only completely eliminate this backward processing mode fundamentally, solve secondary pollution thoroughly. The polyester waste spinning is modified into a new alloy material for blow molding through chemical depolymerization, purification of TPA and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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