Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method for depolymerizing and purifying TPA by using waste polyester textiles and adding film-blowing LDPE for modification

A polyester and modified technology, which is used in the field of extrusion special alloy new materials, can solve the problems that cannot be directly reprocessed, cannot be reused, landfill or incinerate, etc.

Inactive Publication Date: 2019-09-20
PLASTIC UNION NEW MATERIAL TECH HUBEI
View PDF0 Cites 0 Cited by
  • 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

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for depolymerizing and purifying TPA by using waste polyester textiles and adding film-blowing LDPE for modification
  • Method for depolymerizing and purifying TPA by using waste polyester textiles and adding film-blowing LDPE for modification
  • Method for depolymerizing and purifying TPA by using waste polyester textiles and adding film-blowing LDPE for modification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A method of chemically depolymerizing and purifying TPA with polyester waste textiles according to the present invention, adding extrusion grade LDPE material, and modifying it into a special alloy material for extrusion 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 LDPE extrusion grade raw materials in the following parts by weight.

[0011] TPA 10 parts

[0012] Extrusion grade LDPE 85 parts

[0013] Compatibility modifier 5 parts

[0014] Test results

[0015]

[0016] The above-mentioned prepared components and parts by weight are mixed, extruded and granulated, and a new TPA / LDPE extrusion-grade alloy material is obtained.

Embodiment 2

[0018] Referring to the method of Example 1, each component and parts by weight were prepared in the following proportions to prepare TPA plus LDPE extrusion grade raw materials.

[0019] TPA 20 parts

[0020] Extrusion grade LDPE 75 parts

[0021] Compatibility modifier 5 parts

[0022] Test results

[0023]

[0024] The above-mentioned prepared components and parts by weight are mixed, extruded and granulated, and a new TPA / LDPE extrusion-grade alloy material is obtained.

Embodiment 3

[0026] Referring to Examples 1 and 2, prepare TPA plus LDPE extrusion grade raw materials with each component and parts by weight in the following proportions.

[0027] 30 parts of TPA

[0028] Extrusion grade LDPE 65 parts

[0029] Compatibility modifier 5 parts

[0030] Test results

[0031]

[0032] The above-mentioned prepared components and parts by weight are mixed, extruded and granulated, and a new TPA / LDPE extrusion-grade alloy material is obtained.

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for preparing a special alloy new material for extrusion by chemically depolymerizing and purifying TPA and adding an extrusion-grade LDPE material by using waste polyester textiles in our plant. The method comprises the following steps: depolymerizing, filtering, decoloring and purifying waste polyester textiles by using glycerol residues heated to 260-280 DEG C to obtain TPA, adding a compatilizer and other modification aids, adding an extrusion-grade LDPE material in a certain proportion, uniformly mixing the components and performing extrusive granulation on the mixture to obtain the special TPA / LDPE extrusion alloy new material.

Description

technical field [0001] The invention discloses a method for modifying polyester waste textiles into new special alloy materials for extrusion by chemically depolymerizing, purifying TPA and adding extrusion-grade LDPE materials. [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 by chemical depolymerization, purified TPA and extrusion-grade LDPE materials into new extrusion-specific all...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K5/092C07C51/09C07C51/42C07C63/26
CPCC07C51/09C07C51/42C08K5/092C08L2207/066C08L23/06C07C63/26
Inventor 邓忠权邓军邓丽
Owner PLASTIC UNION NEW MATERIAL TECH HUBEI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com