Method for modifying waste terylene textiles by depolymerizing and purifying TPA and adding hollow HDPE

A hollow and polyester technology, applied in the field of new alloy materials for hollow blow molding, can solve problems such as landfill or incineration, inability to directly reprocess, waste of land resources and second pollution

Inactive Publication Date: 2019-12-10
PLASTIC UNION NEW MATERIAL TECH HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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 used as landfills or incinerated.
Not only waste land resources but also cause secondary pollution

Method used

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  • Method for modifying waste terylene textiles by depolymerizing and purifying TPA and adding hollow HDPE
  • Method for modifying waste terylene textiles by depolymerizing and purifying TPA and adding hollow HDPE
  • Method for modifying waste terylene textiles by depolymerizing and purifying TPA and adding hollow HDPE

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A method of purifying TPA by chemical depolymerization of polyester waste textiles according to the present invention, adding hollow blow molding grade HDPE material, and modifying it into a special alloy material for hollow blow molding is carried out according to the following process procedures:

[0010] Depolymerize polyester waste textiles with glycerin residue heated to 260-280 degrees, filter the dregs in the solution, decolorize and purify to obtain liquid TPA. Prepare TPA plus HDPE hollow blow molding grade raw materials according to the following parts by weight.

[0011] TPA 10 parts

[0012] Hollow blow molding grade HDPE 85 parts

[0013] Compatibility modifier 5 parts

[0014] Test results

[0015]

[0016] Mix the above prepared components and parts by weight, extrude and granulate, and obtain the new TPA / HDPE hollow blow molding grade alloy material.

Embodiment 2

[0019] TPA 20 parts

[0020] Hollow blow molding grade HDPE 75 parts

[0021] Compatibility modifier 5 parts

[0022] Test results

[0023]

[0024] Mix the above prepared components and parts by weight, extrude and granulate, and obtain the new TPA / HDPE hollow blow molding grade alloy material.

Embodiment 3

[0027] 30 parts of TPA

[0028] Hollow blow molding grade HDPE 65 parts

[0029] Compatibility modifier 5 parts

[0030] Test results

[0031]

[0032] Mix the above prepared components and parts by weight, extrude and granulate, and obtain the new TPA / HDPE hollow blow molding grade alloy material.

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Abstract

The invention discloses a method for modifying waste terylene textiles into a new hollow blow molding alloy material by chemically depolymerizing and purifying TPA and adding a hollow blow molding grade HDPE material in factories. The method comprises the steps: depolymerizing, filtering, decoloring and purifying the waste polyester textiles by glycerol residues heated to 260-280 DEG C to obtain TPA, adding a compatilizer and other modification aids, adding a certain proportion of hollow blow molding grade HDPE material, uniformly mixing, extruding and granulating to obtain the special new alloy material for TPA/HDPE hollow blow molding.

Description

technical field [0001] The invention discloses a method for modifying polyester waste textiles into a special alloy material for hollow blow molding by chemically depolymerizing and purifying TPA and adding hollow 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 hollow blow molding through chemical depolymerization, purif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K5/092
CPCC08K5/092C08L2207/062C08L23/06
Inventor 邓忠权邓军邓丽
Owner PLASTIC UNION NEW MATERIAL TECH HUBEI
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