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

Radiation crosslinked polyolefin high-elasticity foam and preparation method thereof

A technology of radiation cross-linking and polyolefin, applied in the field of radiation cross-linking polyolefin high-elastic foam and its preparation, which can solve the problems of high hardness, long foaming time, and environmental pollution, and achieve low hardness and good anti-slip effect , good softness

Active Publication Date: 2012-04-18
湖州长园特发科技有限公司
View PDF4 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the general foam in the prior art, such as long foaming time, high hardness, and environmental pollution during the preparation 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

[0027] Example 1: Weigh 64 parts of ethylene-octene copolymer, 28 parts of ethylene-vinyl acetate copolymer, and 5 parts of azodicarbonamide as the main ingredients, and banbury in an internal mixer at 100 ° C. After the main ingredients are fused, Add: 1 part of zinc stearate, 0.5 part of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 1 part of distearyl thiodipropionate, 0.5 parts of polyethylene wax, the temperature is constant, after being fused, make particles in the granulator for use; at 110°C, extrude the masterbatch prepared in the granulation step into a sheet; the energy used is 2.5eV The sheet is irradiated by an electron accelerator; the irradiated sheet is continuously foamed in a horizontal furnace at a temperature of 210°C to obtain the required radiation crosslinked polyolefin high elastic foam cotton.

Embodiment 2

[0028] Example 2: Weigh 63 parts of ethylene-octene copolymer, 27 parts of ethylene-vinyl acetate copolymer, and 5 parts of azodicarbonamide as the main ingredients, and banbury in an internal mixer at 100 ° C. After the main ingredients are fused, Add: 1 part of zinc stearate, 1 part of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 2 parts of distearyl thiodipropionate, 1 part of polyethylene wax, the temperature is constant, after being fused, make particles in the granulator for use; at 110°C, extrude the masterbatch prepared in the granulation step into a sheet; the energy used is 2.5eV The sheet is irradiated by an electron accelerator; the irradiated sheet is continuously foamed in a horizontal furnace at a temperature of 210°C to obtain the required radiation crosslinked polyolefin high elastic foam cotton.

Embodiment 3

[0029] Example 3: Weigh 60 parts of main ingredients ethylene-octene copolymer, 30 parts of ethylene-vinyl acetate copolymer, and 7 parts of azodicarbonamide, and banbury in an internal mixer at 100 ° C. After the main ingredients are fused Add: 1 part of zinc stearate, 0.5 part of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 1 part of distearyl thiodipropionate, 0.5 parts of polyethylene wax, the temperature is constant, after being fused, make particles in the granulator for use; at 110°C, extrude the masterbatch prepared in the granulation step into a sheet; the energy used is 2.5eV The sheet is irradiated by an electron accelerator; the irradiated sheet is continuously foamed in a horizontal furnace at a temperature of 210°C to obtain the required radiation crosslinked polyolefin high elastic foam cotton.

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 provides radiation crosslinked polyolefin high-elasticity foam and a preparation method thereof. The radiation crosslinked polyolefin high-elasticity foam comprises a main material and an auxiliary material, wherein the main material comprises the following components in percentage by weight: 60-65 percent of ethylene-octene copolymer, 25-30 percent of ethylene-vinyl acetate copolymer and 5.0-10.0 percent of foaming agent; the auxiliary material comprises the following components in percentage by weight: 1-2 percent of sensitizing agent, 1-2 percent of antioxidant and 0.5-1.0 percent of lubricating agent; the foaming agent is selected from azodicarbonamide; the sensitizing agent is selected from zinc stearate; the antioxidant is selected from a mixture of tetra-[beta-(3,5-di-tert-butyl-4-hydroxy phenyl)metacetonic acid] pentaerythritol ester and distearyl thiodipropioante; the lubricating agent is selected from polyethylene wax; and the mass ratio of the tetra-[beta-(3,5-di-tert-butyl-4-hydroxy phenyl)metacetonic acid] pentaerythritol ester to the distearyl thiodipropioante is 1:2. The radiation crosslinked polyolefin high-elasticity foam has the beneficial effects of lower foaming energy consumption in comparison to the conventional polyolefin foam, smooth surface, fine foam holes, higher flexibility, smaller hardness, greatly-improved mechanical property and particular increase in the elongation percentage by 2-3 times.

Description

technical field [0001] The invention relates to a radiation-crosslinked polyolefin high-elastic foam and a preparation method thereof, in particular to a radiation-crosslinked polyolefin high-elastic foam with low hardness, good flexibility and low energy consumption and a preparation method thereof. Background technique [0002] Radiation cross-linked polyolefin high-elastic foam is a new type of foam material that is more advanced than radiation cross-linked polyethylene (IXPE) foam, because of its smooth surface, fine cells, high elasticity, high toughness, and low thermal conductivity. , low water absorption, non-toxic and tasteless, aging resistance, chemical corrosion resistance, easy secondary processing and other characteristics, as a new generation of high-efficiency, energy-saving, environmentally friendly materials can be widely used in special packaging, sporting goods, automobile industry, building waterproofing, bags Shoe materials, vehicle and ship manufacturi...

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): C08L23/08C08L31/04C08J3/28C08J3/24C08J9/04C08K5/098C08K5/134C08K5/372
Inventor 杨鸿昌陈兴茂石洪军尹晓军李志刚
Owner 湖州长园特发科技有限公司
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