High temperature resistant, low-contraction, halogen-free, and flame-retardant sheath material and preparation method thereof

A flame-retardant sheath and low-shrinkage technology, which is applied in the field of high-temperature-resistant, low-shrinkage, halogen-free flame-retardant sheath material and its preparation, can solve problems such as poor heat resistance, and achieve good dimensional stability, not easy to ignite and spread, and not easy to shrink deformation effect

Inactive Publication Date: 2020-03-27
WUXI JAKE PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved: In view of the poor heat resistance of the thermoplastic halogen-free flame-retardant sheath material used for optical cables in the prior art, and the shortage of large deformation due to creep, the present invention provides a simple, continuous, High-temperature-resistant, low-shrinkage, halogen-free flame-retardant sheath material for optical cables with high production efficiency and stable product quality and preparation method thereof

Method used

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  • High temperature resistant, low-contraction, halogen-free, and flame-retardant sheath material and preparation method thereof
  • High temperature resistant, low-contraction, halogen-free, and flame-retardant sheath material and preparation method thereof

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Embodiment 1

[0027] A high-temperature-resistant, low-shrinkage, halogen-free flame-retardant sheath material, comprising 56 parts of thermoplastic elastomer, 24 parts of functionalized polyolefin resin, 20 parts of grafted linear low-density polyethylene, and 2 parts of surface slippery agent in parts by weight , 2 parts of antioxidant, 3 parts of processing aid, 160 parts of flame retardant and 2 parts of tubular microcrystalline nano-char forming agent.

[0028] The thermoplastic elastomer is an ester elastomer (PET), and its melt index is 5.0 g / 10 min.

[0029] The melt index of the functionalized polyolefin resin (poe / eba) is 4.0 g / 10 min.

[0030] The grafted linear low-density polyethylene is maleic anhydride grafted, the grafting rate is 1%, and the density of the low-density polyethylene is 0.90g / cm 3 , The melt index is 4.0g / 10min.

[0031] The surface slippery agent is a compound of hyperdispersant DP-310 produced by Lubrizol and erucamide at a weight ratio of 2:3.

[0032] T...

Embodiment 2

[0041] A high-temperature-resistant, low-shrinkage, halogen-free flame-retardant sheathing material, comprising 55 parts of thermoplastic elastomer, 24 parts of functional polyolefin resin, 21 parts of grafted linear low-density polyethylene, and 2 parts of surface slippery agent in parts by weight , 2 parts of antioxidant, 3 parts of processing aid, 150 parts of flame retardant and 3 parts of tubular microcrystalline nano-char forming agent.

[0042] The thermoplastic elastomer is urethane elastomer (TPU), and its melt index is 5.0 g / 10 min.

[0043] The melt index of the functionalized polyolefin resin (poe / eba) is 4.0 g / 10 min.

[0044] The grafted linear low-density polyethylene is maleic anhydride grafted, the grafting rate is 1%, and the density of the low-density polyethylene is 0.90g / cm 3 , The melt index is 4.0g / 10min.

[0045]The surface slippery agent is a compound of hyperdispersant DP-310 produced by Lubrizol and oleic acid amide at a weight ratio of 1:2.

[00...

Embodiment 3

[0051] A high-temperature-resistant, low-shrinkage, halogen-free flame-retardant sheathing material, comprising 50 parts of thermoplastic elastomer, 26 parts of functionalized polyolefin resin, 24 parts of grafted linear low-density polyethylene, and 2 parts of surface slippery agent in parts by weight , 2 parts of antioxidant, 3 parts of processing aid, 150 parts of flame retardant and 1.5 parts of tubular microcrystalline nano-char forming agent.

[0052] The thermoplastic elastomer is a polyolefin elastomer with a melt index of 5.0 g / 10 min.

[0053] The melt index of the functionalized polyolefin resin (poe / eba) is 4.0 g / 10 min.

[0054] The grafted linear low-density polyethylene is maleic anhydride grafted, the grafting rate is 1%, and the density of the low-density polyethylene is 0.90g / cm 3 , The melt index is 4.0g / 10min.

[0055] The surface slippery agent is a compound of hyperdispersant DP-310 produced by Lubrizol and erucamide at a weight ratio of 1:3.

[0056] ...

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Abstract

The invention discloses a high temperature resistant, low-contraction, halogen-free, and flame-retardant sheath material and a preparation method thereof, and belongs to the technical field of polymermaterials. The high temperature resistant, low-contraction, halogen-free, and flame-retardant sheath material comprises following components in parts by weight: 30 to 60 parts of thermoplastic elastomer, 16 to 30 parts of functional polyolefin resin, 16 to 25 parts of grafted linear low density polyethylene, 0.1 to 2 parts of a surface slipping agent, 0.5 to 2 parts of an antioxidant, 1 to 3 parts of a processing aid, 120 to 180 parts of a flame retardant, and 1 to 3 parts of a tubular microcrystal nano charring agent. The sheath material has the advantages of good flame retardant performance, high toughness, high temperature resistance, low contraction, and high stability, does not generate any toxic gas when being burned, and is suitable for small size cables with different structures such as single layer, multiply layers, single core, multiple cores, and the like.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to a low-smoke, halogen-free, flame-retardant polyolefin plastic, in particular to a high-temperature-resistant, low-shrinkage, halogen-free, flame-retardant sheathing material and a preparation method thereof. Background technique [0002] With the implementation of the "Broadband China" strategy, the development of domestic network communications and urban construction continues to accelerate, and 5G communications will bring more needs for the installation and upgrading of new communication equipment and facilities, especially the construction of new base stations, the laying of small and micro base stations and the existing The transformation and expansion of base station transmitters have led to the emergence of new wiring optical cables. This type of optical cable needs to meet a variety of application scenarios, with good comprehensive performance and reliable service life for c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/08C08L51/06C08L53/02C08K13/06C08K3/34C08K3/22
CPCC08K2003/2224C08K2003/2227C08K2201/011C08L53/02C08L67/02C08L75/04C08L2201/02C08L2201/08C08L2201/22C08L2203/202C08L2205/035C08L2207/04C08L23/0815C08L23/0869C08L51/06C08K13/06C08K3/34C08K3/22
Inventor 邵明元潘晓旻翟银枫徐颖楠祁建强游泳
Owner WUXI JAKE PLASTIC
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