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Method for preparing anti-aging wearing-resistant heat-shrinkable tubing

A heat-shrinkable sleeve and anti-aging technology, which is applied in the field of preparation of anti-aging and wear-resistant heat-shrinkable sleeves, can solve the problems of reducing the protective and marking functions of heat-shrinkable sleeves, shortening the service life of heat-shrinkable sleeves, aging resistance and durability Improve cross-linking stability, practicality enhancement, high strength and corrosion resistance, etc.

Inactive Publication Date: 2019-09-10
张宏春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has high temperature shrinkage, softness, flame retardancy, insulation and corrosion resistance, etc., and is widely used in the insulation protection of various wiring harnesses, solder joints, and inductors, as well as the rust and corrosion protection of metal pipes and rods; as the external insulation coating of components, it can It can obviously protect the electronic components, and at the same time, the information of the electronic components can be marked on the surface of the heat-shrinkable sleeve for easy identification, which has high practicability; however, the existing heat-shrinkable sleeves are relatively flexible and resistant to Aging and wear resistance are poor, and wear and aging will appear quickly when used in harsh environments, which will significantly reduce the protection and marking effect of the heat shrinkable sleeve and shorten the service life of the heat shrinkable sleeve
[0003] The existing patent document CN108794853A discloses a method for preparing a flame-retardant flexible heat-shrinkable sleeve. Although the flexibility and flame retardancy of the traditional heat-shrinkable sleeve can be improved, the wear resistance is still not ideal; the existing patent document CN106084431A discloses A super-hard heat-shrinkable sleeve material, a super-hard heat-shrinkable sleeve and a preparation method thereof, the prepared heat-shrinkable sleeve has good wear resistance, but the texture is super hard, and it is very inconvenient to use. It is small and difficult to promote and use

Method used

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  • Method for preparing anti-aging wearing-resistant heat-shrinkable tubing
  • Method for preparing anti-aging wearing-resistant heat-shrinkable tubing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for preparing an anti-aging wear-resistant heat-shrinkable sleeve, comprising the following steps:

[0021] (1) Raw material modification: put polyethylene terephthalate in the reaction kettle, heat slowly until it is completely melted, the heating rate is 2°C / min, keep it warm for 15 minutes, add polypropylene glycol into the reaction kettle, the amount added 2.1% of the polyethylene terephthalate weight, continue to insulate and stir for 70 minutes, promote the sufficient mixing and grafting of polyethylene terephthalate and polypropylene glycol, and carry out polyethylene terephthalate modification, so that the obtained modified polyethylene terephthalate has higher strength and corrosion resistance, and obtains modified polyethylene terephthalate;

[0022] (2) Mixed colloid: Add styrene-butadiene rubber and amino silicone oil to the modified polyethylene terephthalate. The amount of styrene-butadiene rubber added is 7% of the weight of the modified polyethy...

Embodiment 2

[0027] A method for preparing an anti-aging wear-resistant heat-shrinkable sleeve, comprising the following steps:

[0028] (1) Raw material modification: put polyethylene terephthalate in the reaction kettle, heat slowly until it melts completely, the heating rate is 2.5°C / min, keep it warm for 18 minutes, add polypropylene glycol into the reaction kettle, the amount added 2.2% of the polyethylene terephthalate weight, continue to insulate and stir for 80 minutes, promote the sufficient mixing and grafting of polyethylene terephthalate and polypropylene glycol, and carry out polyethylene terephthalate modification, so that the obtained modified polyethylene terephthalate has higher strength and corrosion resistance, and obtains modified polyethylene terephthalate;

[0029] (2) Mixed colloid: add styrene-butadiene rubber and amino silicone oil to the modified polyethylene terephthalate, the amount of styrene-butadiene rubber added is 8% of the weight of the modified polyethyle...

Embodiment 3

[0034] A method for preparing an anti-aging wear-resistant heat-shrinkable sleeve, comprising the following steps:

[0035] (1) Raw material modification: put polyethylene terephthalate in the reaction kettle, heat slowly until it is completely melted, the heating rate is 3°C / min, keep warm for 20min, add polypropylene glycol into the reaction kettle, the amount added 2.3% of the weight of polyethylene terephthalate, continue to insulate and stir for 90min, promote polyethylene terephthalate and polypropylene glycol to fully mix and graft, and carry out polyethylene terephthalate modification, so that the obtained modified polyethylene terephthalate has higher strength and corrosion resistance, and obtains modified polyethylene terephthalate;

[0036](2) Mixed colloid: add styrene-butadiene rubber and amino silicone oil to the modified polyethylene terephthalate, the amount of styrene-butadiene rubber added is 9% of the weight of the modified polyethylene terephthalate, The a...

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Abstract

The invention mainly relates to the technical field of processing of heat-shrinkage tubing and discloses a method for preparing anti-aging wearing-resistant heat-shrinkable tubing. The method comprises the following steps: (1) conducting raw material modification; (2) mixing colloids; (3) conducting anti-aging treatment; and (4) conducting vulcanization molding. The method for preparing the anti-aging wearing-resistant heat-shrinkable tubing, which is disclosed by the invention, is simple, green and healthy and free of environment pollution, and the prepared heat-shrinkable tubing is high in strength, good in flexibility, wearing resistance, aging resistance and practicability, and wide in application range; polyethylene glycol terephthalate is heated and molten, polypropylene glycol is added later, and heat-preservation stirring is conducted, so that sufficient mixing and grafting of the polyethylene glycol terephthalate and the polypropylene glycol can be promoted, the polyethylene glycol terephthalat can be modified, and the obtained modified polyethylene glycol terephthalat has high strength and corrosion resistance.

Description

technical field [0001] The invention mainly relates to the technical field of processing heat-shrinkable sleeves, in particular to a preparation method of an anti-aging and wear-resistant heat-shrinkable sleeve. Background technique [0002] Heat Shrinkable Sleeves Heat shrinkable sleeves, also known as heat shrinkable protective sleeves, provide insulation protection for wires, cables and wire terminals. It has high temperature shrinkage, softness, flame retardancy, insulation and corrosion resistance, etc., and is widely used in the insulation protection of various wiring harnesses, solder joints, and inductors, as well as the rust and corrosion protection of metal pipes and rods; as the external insulation coating of components, it can It can obviously protect the electronic components, and at the same time, the information of the electronic components can be marked on the surface of the heat-shrinkable sleeve for easy identification, which has high practicability; howeve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L71/02C08L9/06C08L83/08C08K3/22C08K5/375C08K5/3437C08K13/02
CPCC08K2003/2241C08K2201/011C08L67/02C08L2201/08C08L2203/18C08L2205/035C08L2312/00C08L71/02C08L9/06C08L83/08C08K3/22C08K5/375C08K5/3437C08K13/02
Inventor 张宏春
Owner 张宏春
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