Method for producing high foaming EPE pearl wool by using carbon dioxide foaming agent

A carbon dioxide and blowing agent technology, applied in the field of polymer material processing, can solve the problems of low structural strength, poor flame retardancy, flammability and explosion, etc., and achieve the effect of good flame retardancy, low cost and high bubble density

Inactive Publication Date: 2019-04-09
安徽荣茂塑胶包装材料有限公司
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of method that adopts carbon dioxide foaming agent to produce high-foaming EPE pearl cotton, to solve the poor flame retardancy of the existing pearl co

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 producing high foaming EPE pearl wool by using carbon dioxide foaming agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The method for producing high-foaming EPE pearl cotton by adopting carbon dioxide blowing agent comprises the steps:

[0019] S1: Materials: expandable polyethylene: 70 parts, carbon dioxide foaming agent: 4 parts, anti-shrinkage agent: 3 parts, monoglyceride: 0.8 parts, talcum powder: 1 part, silica airgel: 6 parts Parts, composite blowing agent: 4 parts and filler: 20 parts, composite blowing agent includes azodicarbonamide, zinc oxide and silicon dioxide, the component ratio between azodicarbonamide, zinc oxide and silicon dioxide It is 10:1:2, and the filler includes bentonite, clay, asbestos fiber and light calcium carbonate;

[0020] S2: Mixing of raw materials: Put the expandable polyethylene in a mixer and knead for 5 minutes, then add talcum powder, silica airgel and fillers and continue kneading for 18 minutes to obtain a mixture, and the kneading temperature is 60 degrees Celsius ;

[0021] S3: Heat extrusion: Pour the mixture obtained in step S2 into a hig...

Embodiment 2

[0023] The method for producing high-foaming EPE pearl cotton by adopting carbon dioxide blowing agent comprises the steps:

[0024] S1: Materials: expandable polyethylene: 80 parts, carbon dioxide foaming agent: 2 parts, anti-shrinkage agent: 5 parts, monoglyceride: 0.6 parts, talcum powder: 2 parts, silica airgel: 4 parts Parts, composite blowing agent: 10 parts and filler: 15 parts, composite blowing agent includes azodicarbonamide, zinc oxide and silicon dioxide, the component ratio between azodicarbonamide, zinc oxide and silicon dioxide It is 10:1:2, and the filler includes bentonite, clay, asbestos fiber and light calcium carbonate;

[0025] S2: Mixing of raw materials: put the expandable polyethylene in a mixer and knead for 3 minutes, then add talcum powder, silica airgel and fillers and continue kneading for 16 minutes to obtain a mixture, the kneading temperature is 50 degrees Celsius ;

[0026] S3: Heat extrusion: Pour the mixture obtained in step S2 into a high-...

Embodiment 3

[0028] The method for producing high-foaming EPE pearl cotton by adopting carbon dioxide blowing agent comprises the steps:

[0029] S1: Materials: expandable polyethylene: 75 parts, carbon dioxide foaming agent: 3 parts, anti-shrinkage agent: 4 parts, monoglyceride: 0.7 parts, talcum powder: 2 parts, silica airgel: 5 parts Parts, composite blowing agent: 7 parts and filler: 17 parts, composite blowing agent includes azodicarbonamide, zinc oxide and silicon dioxide, the component ratio between azodicarbonamide, zinc oxide and silicon dioxide It is 10:1:2, and the filler includes bentonite, clay, asbestos fiber and light calcium carbonate;

[0030] S2: Mixing of raw materials: put the expandable polyethylene in the mixer and knead for 4 minutes, then add talcum powder, silica airgel and fillers and continue kneading for 17 minutes to obtain a mixture, the kneading temperature is 55 degrees Celsius ;

[0031] S3: Heat extrusion: Pour the mixture obtained in step S2 into a high...

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 belongs to the technical field of high molecular material processing, in particular to a method for producing high foaming EPE pearl wool by using a carbon dioxide foaming agent. The method for producing high foaming EPE pearl wool by using the carbon dioxide foaming agent comprises the following steps: S1, taking materials; S2, mixing raw materials: putting expandable polyethylene in a mixer for mixing for 3-5 min and then adding talc powder, a silicon dioxide aerogel and filler and further mixing for 16-18 min to obtain a mixture; and S3, heating and extruding. According to themethod for producing high foaming EPE pearl wool by using the carbon dioxide foaming agent, the pearl wool has good elasticity, heat stability and mechanical properties, and the tensile and tear strength of the pearl wool are improved. By taking carbon dioxide as a foaming agent, the pearl wool is low in cost and good in flame retardance. The method can be used for obtaining a relatively high bubble density. The foamed abscess is more stable. The method is simple in process and convenient for scaled production.

Description

technical field [0001] The invention relates to the technical field of polymer material processing, in particular to a method for producing high-foaming EPE pearl cotton by using a carbon dioxide foaming agent. Background technique [0002] Polyethylene foamed cotton is a non-cross-linked closed-cell structure, also known as EPE pearl cotton, which is a new type of environmentally friendly packaging material. It is composed of low-density polyethylene fat through physical foaming to produce countless independent bubbles. It overcomes the shortcomings of ordinary styrofoam that are fragile, deformed, and poor in recovery. It has many advantages such as water and moisture resistance, shock resistance, sound insulation, heat preservation, good plasticity, strong toughness, recycling, environmental protection, strong impact resistance, etc., and also has good chemical resistance. It is an ideal substitute for traditional packaging materials. The existing pearl cotton has poor...

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
IPC IPC(8): C08L23/06C08K13/04C08K3/34C08K3/36C08K7/12C08K3/26C08K5/103C08J9/12C08J9/10
CPCC08J9/122C08J9/0023C08J9/0066C08J9/0085C08J9/0095C08J9/103C08J2203/04C08J2203/06C08J2203/184C08J2323/06
Inventor 陈传湖
Owner 安徽荣茂塑胶包装材料有限公司
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap