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High-temperature-resistant flexible heat-shrinkable sleeve and preparation method thereof

A heat-shrinkable sleeve and high-temperature resistant technology, applied in the field of cable materials, can solve the problems of high production cost and single performance, and achieve the effects of low dielectric loss, soft performance and high mechanical strength

Inactive Publication Date: 2017-03-22
广州凯恒科塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the fluorine-containing heat-shrinkable sleeves on the market are mostly a single resin component, which has a single performance and high production costs.

Method used

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  • High-temperature-resistant flexible heat-shrinkable sleeve and preparation method thereof
  • High-temperature-resistant flexible heat-shrinkable sleeve and preparation method thereof
  • High-temperature-resistant flexible heat-shrinkable sleeve and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A high-temperature-resistant flexible heat-shrinkable sleeve, comprising the following components in parts by weight:

[0031]

[0032] The acid absorbent is magnesium oxide; the anti-copper agent is N-salicylamino-phthalimine; the antioxidant is 2,6-di-tert-butylphenol; Allyl isocyanurate.

[0033] The heat-shrinkable sleeve described in this embodiment is prepared by the following method:

[0034] 1) Take the ETFE, FEP, acid absorbent, anti-copper agent, and antioxidant of the formula, and put them into the mixing chamber of the single-screw internal mixing granulator in sequence, and banbury evenly at 260 ° C;-

[0035] 2) Then add the cross-linking auxiliary agent in the formula amount into the mixing chamber of the single-screw banburying granulator, and banbury evenly under the condition of 260°C; obtain the mixture;

[0036] 3) Automatically feed the mixture to the granulation part of the single-screw banburying granulator, extrude at 260-360°C, wire drawing...

Embodiment 2

[0041] A high-temperature-resistant flexible heat-shrinkable sleeve, comprising the following components in parts by weight:

[0042]

[0043]

[0044] The acid absorbent is magnesium hydroxide; the anti-copper agent is N, N'-bis[β(3,5-ditertiary-4-hydroxyphenyl)propionyl]hydrazine; the antioxidant Tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester; the cross-linking assistant is triallyl isocyanurate.

[0045] The heat-shrinkable sleeve described in this embodiment is prepared by the following method:

[0046] 1) Take the ETFE, FEP, fluororubber, acid absorbent, anti-copper agent, antioxidant, titanium dioxide in the formula quantity, put them into the mixing chamber of the single-screw internal mixing granulator in sequence, and banbury evenly at 320°C;

[0047] 2) Then add the cross-linking aid in the formula amount into the mixing chamber of the single-screw banburying granulator, and banbury evenly under the condition of 320°C; obtain ...

Embodiment 3

[0053] A high-temperature-resistant flexible heat-shrinkable sleeve, comprising the following components in parts by weight:

[0054]

[0055] The acid absorbent is magnesium hydroxide; the anti-copper agent is N, N'-bis[β(3,5-ditertiary-4-hydroxyphenyl)propionyl]hydrazine; the antioxidant Tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester; the cross-linking assistant is triallyl cyanuric acid ester.

[0056] The heat-shrinkable sleeve described in this embodiment is prepared by the following method:

[0057] 1) Take the ETFE, FEP, fluororubber, acid absorbent, anti-copper agent, antioxidant, titanium dioxide in the formula quantity, put them into the mixing chamber of the single-screw internal mixing granulator in sequence, and banbury evenly at 300°C;

[0058] 2) Then add the formula amount of cross-linking aid to the mixing room of the single-screw banburying granulator, and banbury evenly under the condition of 300°C; obtain the mixture;- ...

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Abstract

The invention discloses a high-temperature-resistant flexible heat-shrinkable sleeve and a preparation method thereof, and the high-temperature-resistant flexible heat-shrinkable sleeve comprises the following components by weight: 50-80 parts of ETFE; 5-50 parts of FEP; 0-50 parts of fluorine rubber; 5-30 parts of an acid absorbent; 0.1-2 parts of an anti copper agent; 0.3-5 parts of an antioxidant; 0.3-3 parts of a crosslinking agent and 0-15 parts of titanium dioxide. The temperature-resistant high-grade heat-shrinkable sleeve is prepared by compounding of the ETFE, the FEP, the fluorine rubber and other materials, the high-temperature-resistant flexible heat-shrinkable sleeve has the characteristics of high temperature resistance and low temperature resistance; at the same time, the high-temperature-resistant flexible heat-shrinkable sleeve also has small dielectric loss, high transmission performance, good oil resistance, good solvent resistance, excellent flame retardancy. high mechanical strength and other advantages.

Description

technical field [0001] The invention relates to the field of cable materials. In particular, it relates to a high-temperature-resistant flexible heat-shrinkable sleeve and a preparation method thereof. Background technique [0002] Heat shrinkable sleeves, also known as heat shrinkable protective sleeves, provide insulation protection for wires, cables and wire terminals. The heat-shrinkable sleeve has the characteristics of high-temperature shrinkage, softness, flame retardancy, and insulation and corrosion resistance. It is widely used in the insulation protection of various wiring harnesses, solder joints, and inductors, and the antirust and anticorrosion protection processes of metal pipes and rods. There are three types of common resins in the material formulation of heat shrinkable sleeves: polyolefin, polyvinyl chloride, and fluoropolymer. Among them, fluoropolymer has the highest comprehensive performance, high high and low temperature resistance, flame retardancy,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L27/12C08L23/06C08K13/02C08K3/22C08K5/13C08K5/3492C08K5/25C08K5/134C08K5/375C08J3/28C08J3/24
CPCC08L23/0892C08L2201/02C08L2201/08C08L2203/18C08L2205/025C08L2205/03C08L2312/06C08L27/12C08K13/02C08K2003/222C08K5/13C08K5/34924C08K2003/2224C08K5/25C08K5/1345C08L23/06C08K5/375
Inventor 黄雷胡晖冉祥海郑凯航
Owner 广州凯恒科塑有限公司
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