Self-extinguishing flame-retardant cable sheath material and preparation method thereof

A flame-retardant cable and sheath material technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of turning into ashes, burning residues without mechanical strength, secondary hazards, etc.

Inactive Publication Date: 2014-07-02
ANHUI DINGXING CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the improvement of social safety awareness, many application fields have clearly put forward the flame retardant performance requirements for the rubber materials used. Usually, halogen-containing rubber matrix is ​​used or halogen flame retardant is added to the rubber matrix to achieve excellent flame retardant effect. , although the effect is very good, it emits a large amount of poisonous and corrosive gas when burning, accompanied by a large amount of smoke
[0003] With the increasingly stringent environmental protection and recycling regulations and the continuous emergence of new sheath materials, traditional cable materials are facing huge challenges. The current technology mainly uses halogen-free lo

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A self-extinguishing flame-retardant cable sheath material, the raw materials of which include by weight:

[0022] 81 parts of dimethylsiloxane-methylvinylsiloxane copolymer, 27 parts of fumed silica, 18 parts of precipitated silica, 14 parts of octamethylcyclotetrasiloxane, 5 parts of zinc oxide , 37 parts of talc powder, 2.6 parts of hydroxyl silicone oil, 0.13 parts of selenium oxide, 1.5 parts of polysiloxane, 0.00042 parts of platinum catalyst, 22 parts of aluminum hydroxide, 24 parts of magnesium hydroxide, 47 parts of calcium silicate; It is composed of wollastonite, xonotlite, tobernallite, sorbite and manganese wollastonite. The platinum catalyst consists of isopropanol solution of chloroplatinic acid and chloroplatinic acid coated on the surface of silicone resin microcapsules. Composed of divinyl tetramethyl disiloxane complex.

[0023] In this embodiment, the preparation method of the above-mentioned self-extinguishing flame-retardant cable sheath material ...

Embodiment 2

[0028] A self-extinguishing flame-retardant cable sheath material, the raw materials of which include by weight:

[0029] 99 parts of dimethylsiloxane-methylvinylsiloxane copolymer, 21 parts of fumed silica, 16 parts of precipitated silica, 13 parts of octamethylcyclotetrasiloxane, 5 parts of zinc oxide , 38 parts of talc powder, 2.2 parts of hydroxyl silicone oil, 0.11 parts of selenium oxide, 1.2 parts of polysiloxane, 0.00035 parts of platinum catalyst, 22.5 parts of aluminum hydroxide, 25 parts of magnesium hydroxide, 42 parts of calcium silicate; It is wollastonite, with an average particle length of 15-35 μm. The platinum catalyst is composed of chloroplatinic acid, chloroplatinic acid and divinyltetramethyldisiloxane complexes coated on the surface of silicone resin microcapsules.

[0030] In this embodiment, the preparation method of the above-mentioned self-extinguishing flame-retardant cable sheath material includes the following steps:

[0031] S1. Weigh dimethyl s...

Embodiment 3

[0035] A self-extinguishing flame-retardant cable sheath material, the raw materials of which include by weight:

[0036] 85 parts of dimethylsiloxane-methylvinylsiloxane copolymer, 25 parts of fumed silica, 18 parts of precipitated silica, 11 parts of octamethylcyclotetrasiloxane, 7 parts of zinc oxide , 41 parts of talc powder, 2.5 parts of hydroxyl silicone oil, 0.14 parts of selenium oxide, 1.6 parts of polysiloxane, 0.00044 parts of platinum catalyst, 18-23 parts of aluminum hydroxide, 29 parts of magnesium hydroxide, 32 parts of calcium silicate; Calcium acid is composed of tobermorite, acanthite and manganese wollastonite, and the platinum catalyst is chloroplatinic acid.

[0037] In this embodiment, the preparation method of the above-mentioned self-extinguishing flame-retardant cable sheath material includes the following steps:

[0038] S1. Weigh dimethyl siloxane-methyl vinyl siloxane copolymer, fumed silica, precipitated silica and hydroxy silicone oil according t...

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PUM

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Abstract

The invention discloses a self-extinguishing flame-retardant cable sheath material, comprising the following raw materials in parts by weight: 75-100 parts of dimethyl siloxane-methyl vinyl siloxane copolymer, 20-30 parts of fumed silica 15-20 parts of precipitated white carbon black, 11-15 parts of octamethylcyclotetrasiloxane, 4-10 parts of zinc oxide, 35-45 parts of talcum powder, 2-3 parts of hydroxyl silicone oil, 0.11-0.15 parts of selenium oxide, 1-1.8 parts of polysiloxane, 0.00024-0.0005 parts of platinum catalyst, 18-23 parts of aluminium hydroxide, 20-30 parts of magnesium hydrate, and 30-50 parts of calcium metasilicate. The invention also discloses a preparation method of the self-extinguishing flame-retardant cable sheath material. The self-extinguishing flame-retardant cable sheath material disclosed by the invention is free of pollution, good in high-temperature self-extinguishing effect, and simple in preparation process, and has certain strength and support ability after being sintered.

Description

technical field [0001] The invention relates to the technical field of cable sheath materials, in particular to a self-extinguishing flame-retardant cable sheath material and a preparation method thereof. Background technique [0002] With the improvement of social safety awareness, many application fields have clearly put forward the flame retardant performance requirements for the rubber materials used. Usually, halogen-containing rubber matrix is ​​used or halogen flame retardant is added to the rubber matrix to achieve excellent flame retardant effect. , although the effect is very good, it emits a large amount of poisonous and corrosive gas when burning, accompanied by a large amount of smoke. [0003] With the increasingly stringent environmental protection and recycling regulations and the continuous emergence of new sheath materials, traditional cable materials are facing huge challenges. The current technology mainly uses halogen-free low-smoke flame-retardant rubbe...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/06C08K13/02C08K3/34C08K3/26C08K3/36C08K5/549C08K3/22H01B7/295
Inventor 余金余
Owner ANHUI DINGXING CABLE
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