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

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...

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

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