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Fluoride elastic double-wall heat-shrinkable sleeve and preparation method thereof

A heat-shrinkable sleeve and elastic technology, applied in the direction of insulators, electrical components, circuits, etc., can solve problems affecting equipment operation, difficult sealing protection, poor wear resistance, etc., to increase the scope of application, improve elasticity, and wear resistance excellent effect

Active Publication Date: 2018-06-01
SHANGHAI CHANGYUAN ELECTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the double-wall heat-shrinkable tubing made of polyolefin products on the market has the following defects: (1) It is suitable for long-term environmental conditions of -40°C to 125°C, and it is difficult to apply for long-term low-temperature environmental conditions of -55°C to high temperature of 200°C
Moreover, it is difficult to perform sealing protection under the environmental conditions of long-term low temperature -55°C to high temperature 200°C
(2) Poor wear resistance, especially when the equipment is used in harsh environments, its poor wear resistance will affect the operation and use of the equipment; thus causing inconvenience

Method used

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  • Fluoride elastic double-wall heat-shrinkable sleeve and preparation method thereof
  • Fluoride elastic double-wall heat-shrinkable sleeve and preparation method thereof
  • Fluoride elastic double-wall heat-shrinkable sleeve and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Raw materials of the fluoride elastic double-wall heat-shrinkable sleeve (by weight):

[0040] (1) Skin raw material components: 60 parts of 1,2-difluoroethylene homopolymer; 40 parts of blends of vinylidene fluoride-chlorotrifluoroethylene copolymer and vinylidene fluoride-hexafluoropropylene copolymer ;Tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid, tris[2.4-di-tert-butylphenyl]phosphite, N,N'-1,6-hexylene Base-bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionamide, bis(2,4-dicumylphenyl)pentaerythritol diphosphite four kinds of blends 1.8 parts ; 2 parts of polytriallyl isocyanurate; dioctyl adipate, bis(2-ethylbutyrate) triethylene glycol ester, epoxy soybean oil, epoxy fatty acid octyl ester, ortho 6 parts of blends of dioctyl phthalate and diisooctyl phthalate; 1.6 parts of blends of barium stearate, cadmium stearate, and zinc stearate; vinylidene fluoride There are 9 parts of copolymer base material, and the proportion of vinylidene fluoride copoly...

Embodiment 2

[0054] Raw materials of the fluoride elastic double-wall heat-shrinkable sleeve (by weight):

[0055] (1), outer skin raw material components: 98 parts of blends of 1,2-difluoroethylene homopolymer and 1,2 difluoroethylene-hexafluoropropylene copolymer; vinylidene fluoride-tetrafluoroethylene-hexafluoroethylene 5 parts of fluoropropylene terpolymer; tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid, tris[2.4-di-tert-butylphenyl]phosphite, N,N '-1,6-hexylidene-bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionamide, bis(2,4-dicumylphenyl)pentaerythritol diphosphite , β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate, bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphate, bis(octadecyl base) 2.5 parts of a blend of seven kinds of pentaerythritol diphosphite; three kinds of triallyl cyanurate, triallyl isocyanurate, and polytriallyl isocyanurate 4 parts of blends; 1 part of blends of dioctyl phthalate, diisooctyl phthalate, and diisodecyl phthalate; barium ...

Embodiment 3

[0070] Raw materials of the fluoride elastic double-wall heat-shrinkable sleeve (by weight):

[0071] (1), outer skin raw material components: 74 parts of 1,2 difluoroethylene-hexafluoropropylene copolymer; vinylidene fluoride-chlorotrifluoroethylene copolymer, vinylidene fluoride-hexafluoropropylene copolymer, vinylidene fluoride-four 25 parts of blends of three kinds of vinyl fluoride-hexafluoropropylene terpolymer; 0.2 parts of β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate; 6 parts of a blend of triallyl phthalate and triallyl isocyanurate; dioctyl phthalate, diisooctyl phthalate, diisodecyl phthalate , dioctyl adipate, bis(2-ethylbutyrate) triethylene glycol ester, epoxidized soybean oil, 4 parts of a blend of seven kinds of epoxy fatty acid octyl ester; barium stearate, monoalkane 0.2 parts of two kinds of blends based on tin; 5 parts of vinylidene fluoride homopolymer substrate, and the proportion of vinylidene fluoride homopolymer substrate gradually incre...

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Abstract

The invention discloses a fluoride elastic double-wall heat-shrinkable sleeve which comprises a sheath and an inner adhesive; the sheath is prepared from the following components in parts by weight: 60-98 parts of poly(vinylidene fluoride) plastics, 5-40 parts of a fluoro-rubber elastomer, 0.2-2.5 parts of an antioxidant, 2-6 parts of an auxiliary crosslinking agent, 1-6 parts of a plasticizer, 0.2-3 parts of a stabilizer and 1-9 parts of a color master; and the inner adhesive is prepared from the following components in parts by weight: 65-85 parts of the poly(vinylidene fluoride) plastics, 10-20 parts of the fluoro-rubber elastomer, 5-15 parts of a polyolefin adhesive, 2-8 parts of a filler, 0.5-2 parts of the antioxidant, 1-2 parts of the plasticizer, 0.2-3 parts of the stabilizer, 1-9parts of the color master and 3-10 parts of tackifying resin. The fluoride elastic double-wall heat-shrinkable sleeve provided by the invention can satisfy sealing, bending, the impact performance, insulation, piezoelectricity, machinery, ageing resistance, wear resistance, ultraviolet resistance and the like under the high-low temperature condition and also has the performances of wear resistance, mechanical damage resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of heat-shrinkable tubes, and in particular relates to a fluoride elastic double-wall heat-shrinkable tube and a preparation method thereof. Background technique [0002] Heat-shrinkable sleeve, also known as heat-shrinkable protective sleeve, has the advantages of high temperature shrinkage, softness, flame retardancy, insulation and corrosion resistance, etc., and is widely used for insulation protection of various wiring harnesses, solder joints, inductors, etc. and rust prevention of metal pipes or rods , Anti-corrosion, etc. [0003] At present, the double-wall heat-shrinkable tubing made of polyolefin products on the market has the following defects: (1) It is suitable for long-term environmental conditions of -40°C to 125°C, and it is difficult to apply to long-term low-temperature environmental conditions of -55°C to high temperature of 200°C. Moreover, it is difficult to perform sealing protection ...

Claims

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Application Information

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IPC IPC(8): C08L27/16C08L23/08C08L23/06C08L45/00C08L57/02C08L93/04C08K13/02C08K5/00H01B17/58H01B17/60H01R4/72
CPCC08K2201/014C08L27/16C08L2201/02C08L2201/08C08L2203/18C08L2205/025C08L2205/035C08L2207/066H01B17/583H01B17/60H01R4/72C08K5/00C08K13/02C08L23/0853C08L23/06C08L23/0815C08L45/00C08L57/02C08L93/04
Inventor 顾陆於刘虎李俊杰
Owner SHANGHAI CHANGYUAN ELECTRONICS MATERIAL
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