Cable insulating layer material with excellent thermal stability and preparation method thereof

Abstract

The invention discloses a cable insulating layer material with excellent thermal stability, which comprises the following raw materials in parts by weight: 30-60 parts of high density polyethylene resin, 15-20 parts of phenolic epoxy resin, 15-20 parts of ethylene propylene rubber, 30-50 parts of styrene-butadiene rubber, 10-30 parts of carbon black, 8-18 parts of talc powder, 3-9 parts of microencapsulated red phosphorus, 4-12 parts of aluminum hydroxide, 15-20 parts of sulfur, 5-12 parts of dibutyl phthalate, 4-12 parts of dioctyl phthalate, 2-6 parts of salicylic acid, 3-8 parts of diethylenetriamine, 5-15 parts of antioxidant and 6-18 parts of heat stabilizer. The invention discloses a cable insulating layer material having excellent thermal stability, a resin and a rubber with good thermal stability and electrical insulation are used as main raw materials and an additive is added to prepare the cable insulating layer material, the thermal stability and the insulation property of the prepared material are greatly improved, the light resistance, the flame retardancy and the oxidation resistance of the prepared material are increased, the plasticity is good, and the cable insulating layer material can be widely used in indoor and outdoor environment. The preparation method provided by the invention is simple, the raw materials are easy to obtain and the cost is low, and the preparation method is worth popularizing.

Description

technical field [0001] The invention relates to the technical field of cable insulating materials, in particular to a cable insulating layer material with excellent thermal stability and a preparation method thereof. Background technique [0002] The cable is usually a rope-like cable twisted by several or several groups of conductors (at least two in each group). Each group of conductors is insulated from each other and is often twisted around a center. The insulating covering layer has the characteristics of internal electrification and external insulation. With the development of society, the amount of cables is increasing. In practical applications, cables are not only used indoors, but also used outdoors. Affected by various harsh environments and weather, the requirements for cable materials are increasing. High, traditional cable materials have been unable to meet the needs of practical applications, a cable insulation layer material with excellent thermal stability ...

AI Technical Summary

Problems solved by technology

With the development of society, the amount of cables is increasing. In practical applications, cables are not only used indoors, but also used outdoors. Affected by various harsh environments and weather, the requirements for cable materials are increasing. Hi