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

Single-wall heat-shrinkable tube and preparation method thereof

A heat-shrinkable sleeve and copolymer technology, used in tubular articles, other household appliances, applications, etc., can solve problems such as poor sealing performance, achieve excellent sealing performance, significant economic and social benefits, and improve performance and application. range effect

Active Publication Date: 2017-01-04
SHANGHAI CHANGYUAN ELECTRONICS MATERIAL
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a single-wall heat-shrinkable sleeve and its preparation method, which can effectively solve defects such as poor sealing performance

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
  • Single-wall heat-shrinkable tube and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] raw material:

[0026] Calculated in parts by weight, take 50 parts of ethylene vinyl acetate copolymer with a melt index of 1-5g / 10min, 14 parts of ethylene vinyl acetate copolymer with a melt index of 10-20g / 10min, and a melt index of 20-40g / 10min 10 parts of ethylene vinyl acetate copolymer, environmentally friendly flame retardants include 10 parts of magnesium hydroxide, 10 parts of aluminum hydroxide, tackifiers include 1.5 parts of terpene resin, 0.5 parts of rosin resin, lubricants include 0.2 parts of PE wax , 0.3 part of zinc stearate, colorant includes 2 parts of carbon black, 2 parts of organic pigment, antioxidant includes tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester 0.2 parts, 0.3 parts of tris[2,4-di-tert-butylphenyl]phosphite.

[0027] Preparation:

[0028] Granulation: After the above-mentioned raw materials are fully mixed by a high-speed mixer, they are blended and granulated by an internal mixer or a twin-screw ...

Embodiment 2

[0033] raw material:

[0034] Calculated in parts by weight, take 40 parts of ethylene vinyl acetate copolymer with a melt index of 1-5g / 10min, 13 parts of ethylene vinyl acetate copolymer with a melt index of 10-20g / 10min, and a melt index of 20-40g / 10min 15 parts of ethylene vinyl acetate copolymer, environment-friendly flame retardant including 5 parts of silicate, 15 parts of ammonium phosphate, 5 parts of ammonium dihydrogen phosphate, tackifier including 1 part of terpene resin, 1 part of rosin resin, petroleum 1 part of resin, 0.1 part of lubricant including silicone, 0.1 part of silicone oil, 1 part of colorant including iron oxide, 1 part of titanium dioxide, 1 part of organic pigment, antioxidant including tris[2,4-di-tert-butylphenyl ] 0.2 parts of phosphite, 0.3 parts of di(octadecyl) thiodipropionate, 0.3 parts of 4,4'-methylene bis(2,6-di-tert-butylphenol).

[0035] Preparation:

[0036] Granulation: After weighing the raw materials according to the above formu...

Embodiment 3

[0041] raw material:

[0042]Calculated in parts by weight, take 35 parts of ethylene vinyl acetate copolymer with a melt index of 1-5g / 10min, 20 parts of ethylene vinyl acetate copolymer with a melt index of 10-20g / 10min, and ethylene vinyl acetate copolymer with a melt index of 20-40g / 10min. 9 parts of vinyl acetate copolymer, environmentally friendly flame retardants include 15 parts of ammonium dihydrogen phosphate, 15 parts of melamine, tackifiers include 1 part of terpene resin, 1 part of petroleum resin, lubricants include 0.5 parts of silicone oil, ethylene bis 0.5 part of stearic acid amide, 0.2 part of colorant including carbon black, 1.8 part of titanium oxide, 0.6 part of antioxidant including 4,4'-methylene bis(2,6-di-tert-butylphenol), N,N 0.4 parts of '-bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hydrazine.

[0043] Preparation:

[0044] Granulation: After weighing the raw materials according to the above formula, they are fully mixed evenly by a high-s...

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

PropertyMeasurementUnit
melt flow indexaaaaaaaaaa
melt flow indexaaaaaaaaaa
melt flow indexaaaaaaaaaa
Login to View More

Abstract

The invention discloses a single-wall heat-shrinkable tube. The tube comprises the following components in parts by weight: 30-50 parts of ethylene vinyl acetate copolymer with melt index of 1-5g / 10min, 10-20 parts of ethylene vinyl acetate copolymer with melt index of 10-20g / 10min, 5-15 parts of ethylene vinyl acetate copolymer with melt index of 20-40g / 10min, 20-40 parts of an environment-friendly fire retardant, 1-5 parts of a thickening agent, 0.2-2 parts of a lubricating agent, 2-4 parts of a colorant and 0.5-1 part of an antioxidant. According to the tube, EVA with different melt indexes is taken as main substrates and an environment-friendly fire retardant is added, so that the single-wall heat-shrinkable tube has flame retardant property and can alleviate pollution to the environment. Besides, the thickening agent is added, so that the single-wall heat-shrinkable tube has excellent sealing property; through the processing technical control, the partial crosslinking of a semi-finished product after being radiated can be guaranteed; a layer of un-crosslinked area is maintained on the inner wall, so that the sealing protection function is achieved; the use performance and application scope of the single-wall heat-shrinkable tube can be obviously increased.

Description

technical field [0001] The invention relates to the technical field of heat-shrinkable sleeves, in particular to a single-wall heat-shrinkable sleeve and a preparation method thereof. Background technique [0002] Heat shrinkable sleeve, also known as heat shrinkable protective sleeve, provides insulation protection for wires, cables and wire terminals, and has been widely used in aviation, aerospace, ships, automobiles, home appliances, communications and petrochemical industries. Because the heat-shrinkable sleeve mainly plays the role of insulation protection, sealing against moisture, anti-rust, anti-corrosion, and anti-vibration dislocation for various wire harnesses, solder joints, cable joints, and metal pipes. Therefore, the physical properties such as sealing, flame retardancy, insulation, and corrosion resistance of the heat shrinkable sleeve are strictly required. [0003] In the prior art, heat-shrinkable sleeves, especially single-walled heat-shrinkable sleeves...

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): C08L23/08C08L45/00C08L93/04C08L23/06C08K13/02C08K5/098C08K3/04C08K3/22C08J3/24C08J3/28B29D23/00B29C35/08
CPCB29C35/0866B29C2035/0877B29D23/00C08J3/246C08J3/28C08J2323/08C08J2423/08C08L23/0853C08L2201/02C08L2203/18C08L2205/02C08L2205/025C08L2205/035C08L2312/00C08L45/00C08L93/04C08L23/06C08L83/04C08K13/02C08K5/098C08K3/04C08K2003/2224C08K2003/2227C08K2003/2241C08K3/34C08K5/34922
Inventor 饶小波王志何艳
Owner SHANGHAI CHANGYUAN ELECTRONICS MATERIAL
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