Flame-retardant heat shrinkable sleeve

A heat-shrinkable sleeve and modification technology, applied in the direction of insulators, connection insulation, cable joints, etc., can solve problems such as burning accidents, poor insulation, personal and property losses, etc., to prevent corrosion and thermal oxygen aging , the effect of preventing copper corrosion

Inactive Publication Date: 2008-10-08
SHANGHAI CHANGYUAN ELECTRONICS MATERIAL
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat shrinkable tubes of the prior art have certain problems due to the composition of the materials used in production, and there are certain defects in their good performance and quality. For example, the automobile wire terminals and joints are easy to age, and the insulation is not good, resulting in short circuits that lead to some burning accidents. occurrence, etc., resulting in a certain amount of personal and property damage

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

[0020] Take 100 kg of polyethylene, 30 kg of magnesium hydroxide, 40 kg of decabromodiphenylethane, 10 kg of antimony trioxide, 2 kg of pentaerythritol ester, 3 kg of PE wax, 3 kg of black masterbatch, and triallyl isocyanide 3 kg of urate esters were compounded and granulated to obtain crystalline modified polyolefin pellets, and then the above pellets were melt-extruded through special equipment and expanded and shaped after being irradiated with high-energy gamma rays to obtain a polyolefin pellet of the present invention. Flame retardant heat shrinkable sleeve.

Embodiment 2

[0022] First, take 100 kg of polyvinyl acetate, 20 kg of magnesium hydroxide, 30 kg of decabromodiphenylethane, 15 kg of antimony trioxide, 3 kg of dilauryl thiodipropionate, 4 kg of silicone resin, and 4 kg of black masterbatch kg and 2 kg of trimethylolpropane triacrylate were compounded and granulated to obtain crystalline modified polyolefin pellets. Then, the above-mentioned pellets are melt-extruded through special equipment and expanded and shaped after being irradiated with high-energy gamma rays, so as to obtain a flame-retardant heat-shrinkable sleeve of the present invention.

Embodiment 3

[0024] First take 100 kg of ethylene, 15 kg of magnesium hydroxide, 20 kg of decabromodiphenylethane, 20 kg of antimony trioxide, 4 kg of octadecyl thiodipropionate, 5 kg of PE wax, 2 kg of black masterbatch, 4 kg of trimethylolpropane trimethacrylate was compounded and granulated to obtain crystalline modified polyolefin pellets. Then, the above-mentioned pellets are melt-extruded through special equipment and expanded and shaped after being irradiated with high-energy gamma rays, so as to obtain a flame-retardant heat-shrinkable sleeve of the present invention.

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

Disclosed is a flame-retardant thermal-shrinking bushing, which is formed by crystal modified polyolefin material irradiated by high-energy gamma-rays through melting and extruding by special equipments; the crystal modified polyolefin material is prepared with the following components based on weight proportion: 100 portions of thermoplastic polyolefin, 15-30 portions of inorganic flame retardants, 30-60 portions of organic flame retardants, 1.5-5 portions of antioxidants, 1.5-8 portions of lubrication and processing aids, 1-8 portions of black color master batches, and 1-4 portions of cross-linking agent. The raw materials granulated and produced based on the formula of the invention have large mechanical strength and heat-resistant oxygen aging; the produced thermal-shrinking bushing can effectively prevent copper corrosion and thermal oxygen aging and enables insulation and wear-resistant protection to automotive wiring harness terminals.

Description

technical field [0001] The invention relates to a tube for automobile electric wires, in particular to a flame-retardant heat-shrinkable sleeve. Background technique [0002] Heat shrinkable material, also known as polymer shape memory material. These materials have a memory effect after radiation crosslinking. The so-called "memory effect" simply means that the cross-linked polymer material expands under the action of external force at high temperature, maintains the expanded shape after cooling, and returns to the pre-expanded shape after continued heating. Heat shrinkable materials are widely used in important fields such as electronics, electric power, industrial and mining facilities, ships, aerospace, and automobiles. With the rapid development of China's economy, the domestic automobile manufacturing industry has also developed rapidly, and the heat shrinkable tubes for automobile wiring harnesses and pipelines have been greatly developed. The quality of this heat-...

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): C08L23/06C08L31/04C08K5/36B29C47/00H01B17/58H02G15/18H01R4/72C08K3/22C08K5/02C08K5/10C08K5/3437C08K5/29
Inventor 王志
Owner SHANGHAI CHANGYUAN ELECTRONICS MATERIAL
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