Nylon optical fiber tight sleeve material and preparation method thereof

Abstract

The invention discloses a nylon optical tight buffered material and a preparation method thereof. The nylon optical tight buffered material comprises the following components: 60-70 parts of aliphatic nylon 12, 15-30 parts of nylon 610, 5-15 parts of a cycloolefin copolymer, 0.5-5 parts of maleic anhydride grafted amorphous polyolefin, 0.4-1 part of a hindered phenol antioxidant, 0.2-0.5 part of a phosphite ester antioxidant and 0.1-3 parts of a plasticizer, wherein the relative viscosities of the aliphatic nylon 12 and the nylon 610 are blow 2.7; the cycloolefin copolymer is selected from ethylene with density of 1.01+ / -0.01 g / cm<3> and a norbornene copolymer TOPAS resin; the plasticizer is selected from N-butylbenzene sulfonamide and N,N-dimethyl-p-toluenesulfonamide. The nylon optical tight buffered material is not easy to crystallize, high in transparency and low in coefficient of thermal expansion, and has the advantage of greatly reducing the optical attenuation loss.

Description

technical field [0001] The invention relates to an optical fiber tight sleeve material, in particular to a nylon optical fiber tight sleeve material and a preparation method thereof. Background technique [0002] The scientific name of nylon is polyamide resin, its amide group is polar, and there are strong hydrogen bonds in its structure, which makes nylon have a high melting point, excellent mechanical properties, good wear resistance and self-lubrication And good corrosion resistance, so nylon is widely used in automobiles, machinery, electronic appliances, chemicals and other fields. [0003] In the prior art, optical fiber is an important tool for information transmission, and is used for long-distance information transmission. The tiny optical fiber is encased in a plastic sheath that allows it to be bent without breaking. Although nylon has the above excellent properties, ordinary grades of nylon 12 and nylon 610 cannot be directly used as optical fiber tight sleeve...

AI Technical Summary

Problems solved by technology

Although nylon has the above excellent properties, ordinary grades of nylon 12 and nylon 610 cannot be directly used as optical fiber tight sleeve materials, mainly because the crystallinity of nylon often makes the material opaque, and the thermal expansion coefficient is high, resulting in optical fiber coating nylon tightness. The increase of attenuation after the sleeve cannot meet the requirements, and the commonly used low-smoke halogen-free polyethylene or PVC optical fiber tight sleeve can meet the requirements of optical fiber attenuation resistance, but its low strength, low temperature resistance, and opacity cannot meet the requirements of high temperature and high requirements. place

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