Aerogel modified flame-retardant optical cable material and preparation method thereof

An aerogel and optical cable technology, which is applied in the field of optical cable materials, can solve the problems of agglomeration of modified particles and affect the comprehensive performance of polystyrene, so as to improve the dispersibility, increase the thermal decomposition temperature and the amount of carbon, and improve the fire safety. Effect

Inactive Publication Date: 2016-09-14
安徽电信器材贸易工业有限责任公司
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  • Abstract
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Problems solved by technology

[0006] However, a large amount of addition leads to the agglomeration of modified parti

Method used

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Example Embodiment

[0022] An aerogel modified flame-retardant optical cable material, which is composed of the following parts by weight of raw materials:

[0023] Hexamethylphosphoric triamide 0.4, polyamide wax powder 3, lithium silicate 0.3, trimethylolpropane 0.1, polyvinyl chloride 100, polystyrene 20 sodium hypophosphite monohydrate 3, paraformaldehyde 2, 35% Hydrochloric acid 0.2, chlorinated spirocyclic phosphate 4, aluminum chloride hexahydrate 5, triethylamine 0.1, saturated stearyl amide 0.7, silica aerogel 3, talc 8, diaminodiphenyl ether 0.1.

[0024] A method for preparing the aerogel modified flame-retardant optical cable material includes the following steps:

[0025] (1) Take the above sodium hypophosphite monohydrate, add it to 50 times its weight in deionized water, stir evenly, send it to a constant temperature water bath at 76°C, slowly add the above paraformaldehyde, and add the above 35% hydrochloric acid under stirring , Keep the temperature and stir for 8 hours under the prote...

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Abstract

The invention discloses an aerogel modified flame-retardant optical cable material, which is composed of the following raw materials in parts by weight: 0.4 to 1 part of hexamethyl phosphoric triamide, 3 to 4 parts of polyamide wax micropowder, 0.3 to 0.5 part of lithium silicate, 0.1 to 0.2 part of trihydroxymethyl propane, 100 to 130 parts of polyvinyl chloride, 3 to 4 parts of polystyrene 20-2 sodium hypophosphite monohydrate, 2 to 3 parts of paraformaldehyde, 0.2 to 0.3 part of hydrochloric acid (35-37%), 4 to 6 parts of chlorinated spiro-phosphate, 5 to 7 parts of aluminum chloride hexahydrate, 0.1 to 0.2 part of triethylamine, 0.7 to 1 part of saturated stearamide, 3 to 4 parts of silicon dioxide aerogel, 8 to 10 parts of talcum powder, and 0.1 to 0.2 part of diamino diphenyl ether. The provided optical cable material can dilute the flame and reduce the temperature of combustion area; at the same time, phosphor and oxygen free radicals generated during the cracking process can capture free radicals that are generated by cracking polystyrene chain segments, thus the thermal stability of the optical cable material is improved, and the heat release value of the material is reduced.

Description

technical field [0001] The invention relates to the technical field of optical cable materials, in particular to an airgel modified flame-retardant optical cable material and a preparation method thereof. Background technique [0002] In recent years, nanotechnology has attracted widespread attention in the field of flame retardancy. Studies have shown that nanomaterials only need a small amount of addition (generally less than 5%) to achieve a more obvious flame retardancy effect. Therefore, the preparation of flame-retardant nanocomposites is an important component in the field of flame-retardant technology, and is highly regarded by researchers. Layered inorganic nanomaterials are one of the most effective filler materials in flame-retardant nanocomposites. When layered inorganic nanomaterials are dispersed in the polymer matrix at the nanoscale, they can significantly improve the mechanical properties of nanocomposites. , thermal stability and flame retardant properties...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L25/06C08L59/00C08L77/00C08K13/02C08K5/5317C08K3/36
CPCC08L27/06C08L2201/02C08L2201/08C08L2205/035
Inventor 王卫东白福全余文辉
Owner 安徽电信器材贸易工业有限责任公司
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