A high-speed, low-shrinkage, low-smoke, halogen-free tight casing for 4g optical cable and its preparation method

A low-shrinkage, optical cable technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of not ensuring the rigidity of the material well, destroying the polyacrylic acid coating layer of the fiber, and not ensuring the uniformity of the microstructure, etc., to achieve steam permeability resistance Environmental stress cracking resistance, improved processing fluidity, and strong rigidity
CN103897256BActive Publication Date: 2016-10-26JIANGSU LINRY NEW MSTAR TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU LINRY NEW MSTAR TECH
Publication Date
2016-10-26

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Abstract

The invention discloses a high-speed low-shrink low-smoke zero-halogen tight-buffered material used for a 4G optical cable and a preparation method of the high-speed low-shrink low-smoke zero-halogen tight-buffered material. The tight-buffered material is composed of the following raw materials in parts by weight: 30-60 parts of ethylene-vinyl acetate copolymer, 10-20 parts of linear low density polyethylene, 20-30 parts of high density polyethylene, 10-30 parts of compatilizer, 100-150 parts of filler-type flame retardant, 25-60 parts of synergistic flame retardant, 1-2 parts of silane coupling agent, 2-5 parts of ultra-high molecular weight silicone master batch, 0.5-1 part of amides high-performance lubrication dispersant and 0.2-0.5 part of compound antioxygen through stirring, mixing and extruding steps. The tight-buffered material prepared by elaborate formula selection and processing is low in shrinking percentage, strong in rigidity, high in hardness, high in extrusion molding speed, low in rejection rate and good in high / low temperature cycling resistance. When the tight-buffered material is processed, die orifice stacking and salivation are less, the surface of the optical cable is smooth, fine and particle-free, and the tight-buffered material is easy to peel.
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Description

technical field

[0001] The invention belongs to the field of polymer material processing, and relates to a plastic particle and a preparation method thereof, in particular to a high-speed, low-shrinkage, low-smoke, halogen-free tight sleeve material for 4G optical cables and a preparation method thereof. Background technique

[0002] In 1966, Kao first proposed the idea that optical fiber could be used for communication transmission. With the advancement of technology, optical fiber has gradually become practical, and because the transmission loss of light in optical fiber is much lower than that of electricity in electric wire, optical fiber is used as a long-term The transmission of distance information is more beneficial. At present, optical fiber and optical cable have become the best carriers for data transmission. There are generally two designs of optical cables, one is ointment-filled loose-pack type, and the other is tight-buffered optical fiber type. Tight-buffere...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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