Novel wire insulation outer skin and fabrication method thereof

Abstract

The invention provides a novel wire insulation outer skin and a fabrication method thereof. The constituents of the novel wire insulation outer skin comprise polyvinyl chloride, chlorinated rubber, nylon, calcium carbonate, silicon oxide, talcum powder, aluminum oxide and a flame retardant agent, the constituents are prepared to form three layers by three times, the innermost layer is a composite rubber layer, a second layer is a mixture of the aluminum oxide, the silicon oxide and the flame retardant agent, a third layer is a nylon layer, and the innermost layer, the second layer and the first layer are combined to form the novel wire insulation outer skin. The nylon at the outermost layer is used for allowing the insulation outer skin to have the characteristics of wear corrosion and high temperature resistance, the intermediate layer has effects of fire prevention and thermal isolation, and the innermost layer has the characteristic of insulation and cannot be cracked under a low-temperature state. The novel wire insulation outer skin has the advantages of high production efficiency, low cost, high aging resistance and long service lifetime, and is applicable to various severe environments.

Description

technical field [0001] The invention belongs to the technical field of wire insulation materials, and in particular relates to a novel wire insulation sheath and a manufacturing method thereof. Background technique [0002] With the development of the economy, the popularity of electrical appliances is getting higher and higher, and the use of wires is also increasing. The current wire insulation layer is mainly made of polyvinyl chloride, and it is made by adding corresponding additives. However, due to the poor heat resistance, flame retardancy and aging resistance of polyvinyl chloride, the service life of the wire is short, and the safety and reliability are poor. Therefore, in the current production process, additives of lead, barium, and cadmium will be added to PVC, and these additives containing harmful heavy metal elements will also be damaged after long-term use of the wire, thereby dissolving in the natural environment. The environment is polluted. [0003] In a...

AI Technical Summary

Problems solved by technology

However, due to the poor heat resistance, flame retardancy and aging resistance of polyvinyl chloride, the service life of the wire is short, and the safety and reliability are poor.

Therefore, in the current production process, additives of lead, barium, and cadmium will be added to PVC, and these additives containing harmful heavy metal elements will also be damaged after long-term use of the wire, thereby dissolving in the natural environment. environmental pollution

[0003] In addition, at present, natural rubber and styrene-butadiene rubber are mostly used in many wire insulation sheaths. This material has good elasticity, but poor weather resistance, and is prone to aging and cracking during actual use. It still cannot meet the needs of some special places or places with harsh environments. need

[0004] At present, the purpose of the wire insulation sheath on the market is to be flame-retardant, fire-proof, and heat-insulating. However, part of the loss of the insulation sheath of the wire comes from external wear and corrosion, which leads to rapid aging of the wire and a short service life. Therefore, There is a need for a wire insulation sheath that can be flame-retardant, fire-proof, and heat-insulated while being wear-resistant and anti-aging so as to prolong the service life of the wire