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Low-thermal-shrinkage low-smoke halogen-free flame retardant sheath material for optical cable and preparation method

A low-smoke flame-retardant and sheath material technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of optical cable cracking, detachment of optical fiber and sheath at the interface, and attenuation of optical cable transmission signals.

Active Publication Date: 2012-07-04
上海至正新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thermal shrinkage causes the transmission signal of the optical cable to attenuate, and severe shrinkage affects the cracking of the optical cable, and the separation of the optical fiber and the sheath at the interface

Method used

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  • Low-thermal-shrinkage low-smoke halogen-free flame retardant sheath material for optical cable and preparation method
  • Low-thermal-shrinkage low-smoke halogen-free flame retardant sheath material for optical cable and preparation method
  • Low-thermal-shrinkage low-smoke halogen-free flame retardant sheath material for optical cable and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Each component name and each component parts by weight are as follows:

[0067]

[0068] The preparation method of the above-mentioned invention comprises the following processing steps:

[0069] Mix aluminum hydroxide, magnesium hydroxide, vinyl triethoxysilane, dicumyl peroxide, Irganox 1010, and silicone masterbatch in proportion until the temperature reaches 70°C±5°C, place the material out, and mix with other components Extrude and granulate according to the ratio.

[0070] The product in Example 1 is subjected to a performance detection test, and each performance value is as shown in the performance example.

Embodiment 2

[0072] Each component name and each component parts by weight are as follows:

[0073]

[0074] The preparation method of the above cable material is similar to that of Example 1.

[0075] The product in Example 2 is subjected to a performance detection test, and each performance value is as shown in the performance example.

Embodiment 3

[0077] Each component name and each component parts by weight are as follows:

[0078]

[0079] The preparation method of the above cable material is similar to that of Example 1.

[0080] The product in Example 3 is subjected to a performance detection test, and each performance value is as shown in the performance example.

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Abstract

The invention provides a low-thermal-shrinkage low-smoke halogen-free flame retardant sheath material for an optical cable. The sheath material comprises the following components in parts by weight: 100 parts of basic resin, 100-120 parts of flame retardant A, 20-30 pats of flame retardant B, 1.0-2.5 parts of coupling agent, 0.1-0.5 parts of cross-linking initiator, 0.5-1 part of antioxidant and 0.5-3 parts of lubricant, wherein the cross-linking initiator is dicumyl peroxide. The invention provides the low-smoke halogen-free flame retardant sheath material for with low thermal shrinkage and good flame retardant property and a reparation method thereof.

Description

technical field [0001] The invention relates to a sheathing material for an optical cable and a preparation method thereof, in particular to a low-heat-shrinkable, halogen-free, low-smoke, flame-retardant sheathing material for an optical cable and a preparation method thereof. Background technique [0002] Ordinary optical cable is mainly composed of optical fiber, outer sheath and so on. The main component of optical fiber is glass fiber, which is easily broken due to the influence of external force during use. The optical cable used for long-distance, high-speed signal transmission, the outer sheath of the optical cable is of great significance to the protection of the optical fiber. [0003] The sheath material for ordinary optical cables is made of halogen-free, low-smoke and flame-retardant materials. During the production process of the optical cable, the sheath layer is continuously and high-speed coated on the main material of the optical fiber through an extruder...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K13/02C08K3/22C08K5/134C08K5/5425G02B6/44
Inventor 宋刚侯海良翁文彪曹云
Owner 上海至正新材料有限公司
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