Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Special material of multilayer co-extrusion film produced by recycled PET bottle flakes and recycled LDPE alloy and preparation method thereof

A multi-layer co-extrusion and special-purpose material technology, which is applied in the field of multi-layer co-extrusion film special materials and its preparation from recycled PET bottle flakes and recycled LDPE alloys, can solve problems such as difficult processing, high price, and film tearing

Active Publication Date: 2014-02-12
四川塑金科技有限公司
View PDF2 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PET and PE new material alloys are relatively common, mainly used in multi-layer arch extrusion film, but the price is still expensive, there is no special material for multi-layer production of multi-layer co-extrusion film with recycled PET and recycled PE alloy in the market.
[0003] Because the recycled materials are incompatible with other types of plastics and solid impurities, it is easy to tear the film when the film is extruded, the break is difficult to form, or the yield is extremely low. The general yield is less than 20%; the molecular weight distribution of the material is degraded. wide, difficult to process

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 Preparation of special material for multi-layer co-extruded film produced from recycled PET bottle flakes and recycled LDPE alloy

[0019] Step 1: Select 60 parts by weight of clean, impurity-free, variegated, and stable-viscosity regenerated PET bottle flakes, and select 25 parts by weight of regenerated LDPE regrind particles without impurities, and pass through a 120-mesh stainless steel filter.

[0020] Step 2: Dry the regenerated PET bottle flakes at a temperature of 120° C. for 2 hours.

[0021] Step 3: Take 10 parts by weight of EVA, 5 parts by weight of grafted POE, 0.3 parts by weight of oxidized PE wax, 0.15 parts by weight of PPA, 0.15 parts by weight of GMS, and 0.1 parts by weight of chain extender PMDA, and the processed one and two parts The regenerated PET bottle flakes and the regenerated LDPE regrind granules are put into the high mixer together, heated, mixed and stirred for 4 minutes.

[0022] Step 4: Extrusion granulation, extrusion tempe...

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 special material of a multilayer co-extrusion film produced by recycled PET bottle flakes and recycled LDPE alloy. The special material of the multilayer co-extrusion film is prepared from the following components: 60-85 part by weight of recycled PET bottle flakes, recycled LDPE reclaim particles, 3-15 part by weight of EVA, 3-10 part by weight of graft POE, 0.1-0.5 part by weight of oxidized PE wax, 0.1-0.2 part by weight of PPA, 0.1-0.3 part by weight of GMS and 0.1-0.3 part by weight of chain extender PMDA. The special material of the multilayer co-extrusion film solves the tearing and rupture phenomena of recycled plastic extrusion films and can partly replace fresh material PET and PE alloy.

Description

technical field [0001] The invention relates to a special material for producing multi-layer co-extruded film from recycled PET bottle flakes and recycled LDPE alloy and a preparation method thereof. Background technique [0002] Alloys of PET and PE new materials are relatively common, and are mainly used in multi-layer arch extrusion films, but the price is still expensive. At present, there are no special materials for multi-layer production of multi-layer co-extrusion films using recycled PET and recycled PE alloys in the market. [0003] Because the recycled materials are incompatible with other types of plastics and solid impurities, it is easy to tear the film when extruding the film, the break is difficult to form or the yield is very low, generally the yield is less than 20%; the molecular weight distribution of the material is degraded. Wide and difficult to process. Contents of the invention [0004] One of the purposes of the present invention is to provide a ...

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): C08L67/02C08L23/06C08L23/08C08L51/06C08L77/00C08K5/1539C08K5/103
Inventor 乔江浩陈道明
Owner 四川塑金科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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