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Self-crosslinked expansion flame-retardant material and preparation method thereof

An intumescent flame retardant and self-crosslinking technology, applied in the field of self-crosslinking intumescent flame retardant materials and their preparation, can solve the problems of low comprehensive performance and harsh environmental requirements, and achieve short crosslinking time, excellent flame retardant performance, and water resistance. good effect

Inactive Publication Date: 2015-02-04
HONGLONGJIANG ORIENT SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is to solve the problems of time-consuming, harsh environmental requirements and low comprehensive performance existing in the existing flame-retardant materials

Method used

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  • Self-crosslinked expansion flame-retardant material and preparation method thereof

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specific Embodiment approach 1

[0032] Specific embodiment 1: In this embodiment, a self-crosslinking intumescent flame-retardant material is made of 94-96 parts of material A, 2-4 parts of material B and 1-3 parts of material C in parts by weight;

[0033] The A material consists of 100 parts by weight of flame retardant resin, 0.9 to 5 parts of silane coupling agent, 0.09 to 5 parts of initiator, 0.01 to 0.5 parts of composite antioxidant, 0.001 to 0.05 parts of polymerization inhibitor and 0.1 to 5 parts of Made from 5.0 parts of water generating agent;

[0034] The B material is made of 100 parts by weight of flame retardant resin, 0.01-3 parts of high-efficiency catalyst, 0.2-10 parts of stearic acid and 0.01-0.5 parts of composite antioxidant;

[0035] The C material is made of 100 parts by weight of flame retardant resin, 0.01-5 parts of high-efficiency water-absorbing agent, 0.01-0.5 parts of composite antioxidant, 5-20 parts of photoinitiator and 5-30 parts of cross-linking auxiliary agent ;

[00...

specific Embodiment approach 2

[0049]Specific embodiment two: the difference between this embodiment and specific embodiment one is: the silane coupling agent in the A material is vinyltrimethoxysilane, vinyltriethoxysilane, γ-aminopropyl triethyl Oxysilane, Benzylazinomethyltriethoxysilane, γ-Ethyldiazidopropyltrimethoxysilane, β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane and γ-Methyl One of propyl acrylate trimethoxysilane or a mixture of several of them, mixed in any ratio when it is a mixture; the initiator in the A material is dicumyl peroxide, benzoyl peroxide, peroxide Oxidized tert-butyl benzoate, tert-butyl peroxy-3,5,5-trimethylhexanoate or a mixture of several of them, mixed in any ratio when it is a mixture; the barrier in the A material The polymerizing agent is hydroquinone, p-benzoquinone, p-tert-butylcatechol, N,N-dimethylimide, N,N-dimethylacrylamide, tricresyl phosphate, octyl phosphite, One of triphenyl phosphate and 1,1-diphenyl-2-picrylhydrazine or a mixture of several of them, mixed i...

specific Embodiment approach 3

[0050] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the high-efficiency catalyst in the described B material is dibutyltin dilaurate, dioctyltin dilaurate, bis(dodecylsulfanyl) ) dibutyltin, dimethyltinmercaptide, dibutyltinmaleate or dioctyltinmercaptide. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a self-crosslinked expansion flame-retardant material and a preparation method thereof and relates to a self-crosslinked expansion flame-retardant material and a preparation method thereof. The invention aims at solving the problems of long time consumption, harsh environmental requirements and low comprehensive performances of the existing flame-retardant material. The self-crosslinked expansion flame-retardant material is prepared from 94-96 parts of a material A, 2-4 parts of a material B and 1-3 parts of a material C by weight. The method comprises the following steps: 1) preparing flame-retardant resin; 2) preparing the material A; 3) preparing the material B; 4) preparing the material C; and 5) mixing the materials, and extruding and granulating to obtain the self-crosslinked expansion flame-retardant material. The method disclosed by the invention is used for preparing the self-crosslinked expansion flame-retardant material.

Description

technical field [0001] The invention relates to a self-crosslinking expansion flame-retardant material and a preparation method thereof. Background technique [0002] Silane boiled cross-linked flame retardant polyolefin materials have been successfully used in the wire and cable industry. The silane is grafted by melting, connected to the macromolecular chain, and then the side group is hydrolyzed, dehydrated and condensed in the presence of a catalyst to form a Si-O-Si crosslink. However, it needs to be treated with water heat or steam during application, and the product has problems such as long working hours, uneven crosslinking, and poor product stability. Although there are also patents for silane self-crosslinking flame retardant materials, they all have a long self-crosslinking time (at least 15 days or more) and high environmental humidity requirements (only suitable for humid climates in the south, while dry climates in the north require longer time) ), and due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L83/04C08L1/26C08L29/04C08L33/02C08K13/06C08K9/06C08K3/26C08K3/22C08K3/38C08K3/30C08K5/09C08K5/1539C08K5/5425C08K5/544C08K5/5435B29C47/92B29C48/92
CPCC08L23/0815C08L23/0869C08L2201/02C08L2201/08C08L2205/03C08L2205/035C08L83/04C08K13/06C08K9/06C08K2003/265C08K5/5425C08K5/14C08K5/1345C08K5/372C08L23/06C08L1/286C08K5/375C08L33/02C08K5/13C08K5/20C08L23/0853C08L29/04
Inventor 鲍文波刘岩刘建勋高广刚马宝红祁鑫高苏亮
Owner HONGLONGJIANG ORIENT SCI & TECH
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