Hydrogenated rosin-modified aging-resistant sheathing material for building optical cables, and preparation method of sheathing material

Abstract

The invention discloses a hydrogenated rosin-modified aging-resistant sheathing material for building optical cables. The sheathing material is prepared from the following raw materials in parts by weight: 80-100 parts of low-density polyethylene, 2-4 parts of hydrogenated rosin, 3-5 parts of methyl-phenyl silicon resin, 4-6 parts of magnesium hydroxide, 2-4 parts of white carbon black, 0.5-1 part of tetraethyl orthosilicate, 1.5-2.5 parts of vinyl triethoxysilane, 3-5 parts of triphenyl phosphate, 0.3-0.5 part of pentaerythrityl tetrastearate, 0.3-0.5 part of antioxidant 1010, 0.5-1 part of oleamide, and 0.5-1 part of white mineral oil. The optical cable sheathing material has both excellent mechanical performance and flame-retardant performance, and is good in tensile resistance and bending resistance, as well as aging-resistant property, the service life is long, the environmental suitability is good, and the hydrogenated rosin-modified aging-resistant sheathing material is suitable for the field of building optical sheaths.

Description

technical field [0001] The invention relates to the technical field of optical fiber sheath materials, in particular to a sheath material for an aging-resistant building optical cable modified by hydrogenated rosin and a preparation method thereof. Background technique [0002] With the development of the communication industry, the use of optical cables is becoming more and more popular, which also puts forward new requirements for the structure and performance of optical cables. In particular, residential building optical cables, as a product that has been vigorously developed in recent years, have a huge demand. The communication optical cables used are closely related to people's safety and health issues, so the requirements for the fire resistance and flame retardant performance of optical cables are higher. At present, the commonly used optical cable sheath is mainly made of ordinary polyethylene material, which not only has insufficient surface hardness and is prone t...

AI Technical Summary

Problems solved by technology

However, this method has limited improvement on the mechanical properties of the sheath material, especially the bending properties and tensile properties, and there are still insufficient wear resistance and flame retardancy, which is difficult to meet the needs of residential building optical cable wiring.