Environment friendly cold-resistant flexible sheath material and coaxial cable produced thereof

Abstract

An environmental protection cold resistance soft sheathing material is mainly prepared by the following materials according to the parts by weight: 40-45 pars of polyvinyl chloride, 5-7 parts of trioctyl trimellitate, 4-6 parts of dioctyl sebacate, 8-10 parts of dioctylphthalate, 5-7 parts of phthalandione (2- propyl heptylasetate) diester, 4-6 parts of ca-zn composite stabilizer, 1-1.5 parts of epoxidized soybean oil, 1-1.5 parts of diantimony trioxide, 10-13 parts of magnesium hydrate, and 10-13 parts of refined calcium carbonate. The sheathing material has excellent cold resistance and environmental protection performance, low cost and high softness, and simultaneously the physical property of the sheathing material meets the European Union electronic apparatus ROHS commands and UL requirements. Based on the environmental protection cold resistance soft sheathing material, environmental protection cold resistance soft coaxial-cables which meet the UL requirements are successfully developed, thus technically solving the technical difficulties of softness, cold resistance, UL mechanical physical property and the like which are difficult to be achieved completely, meeting the strict requirements of the application of products on cold regions and having remarkable social effect.

Description

(1) Technical field [0001] The invention relates to the field of wire and cable processing, in particular, the invention relates to an environment-friendly, cold-resistant soft sheath material and a coaxial cable made of the same. (2) Background technology [0002] Generally, the lowest temperature for PVC sheathed coaxial cables is -10°C. In the cold northern regions of my country, northern Europe, Russia and other countries and regions, sometimes the temperature can be as low as -20-30°C, or even as high as -40°C. At low temperatures, PVC will become brittle and crack. [0003] In recent years, the cable industry has increased the development of cold-resistant coaxial cables. The solution to the cold resistance of coaxial cables mainly focuses on the insulation layer and the sheath layer. Since the insulation layer of the coaxial cable is a polyethylene material with good low temperature resistance, the key technology of the cold-resistant coaxial cable lies in the mater...

AI Technical Summary

Problems solved by technology

However, due to the need to meet both UL requirements and EU ROHS environmental protection directives, it greatly increases the difficulty of development

To improve the flexibility of PVC, it is generally necessary to increase the proportion of plasticizers, and the increase of plasticizers will inevitably affect the physical performance indicators that cannot be met, and at the same time increase the cost

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