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Triazine carbon forming-foaming agent, synthesis method of the triazine carbon forming-foaming agent, and flame-retardant polymer composite material prepared from the triazine carbon forming-foaming agent

A technology of flame retardant polymer and synthesis method, which is applied in the field of flame retardant polymer composite materials, can solve the problems of high polarity of charcoal-foaming agent, poor surface smoothness, poor compatibility, etc., and achieve excellent flame retardant effect , good compatibility, and the effect of improving water resistance

Inactive Publication Date: 2012-02-15
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the problem that the carbon-forming-foaming agent synthesized by the existing method has high polarity, strong hygroscopicity, poor compatibility with polymers during processing, and poor surface smoothness when the material is rapidly extruded. Provide triazine-based char-forming-foaming agents, their synthesis methods and flame-retardant polymer composites made from them

Method used

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  • Triazine carbon forming-foaming agent, synthesis method of the triazine carbon forming-foaming agent, and flame-retardant polymer composite material prepared from the triazine carbon forming-foaming agent
  • Triazine carbon forming-foaming agent, synthesis method of the triazine carbon forming-foaming agent, and flame-retardant polymer composite material prepared from the triazine carbon forming-foaming agent
  • Triazine carbon forming-foaming agent, synthesis method of the triazine carbon forming-foaming agent, and flame-retardant polymer composite material prepared from the triazine carbon forming-foaming agent

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specific Embodiment approach 1

[0014] Specific embodiment one: the present embodiment triazine series char-forming-foaming agent is the random copolymer that is made up of structural unit represented by following general formula I and II;

[0015]

[0016] Wherein the molar ratio of above-mentioned structural unit I and II is 01 =C n1 H2 n1+1 , n1=1~10; R 2 =-NH(CH 2 ) n2 NH-, Among them n2=2~6; R 3 =C n3 h 2n3 , n3=2~4; R 4 =-NH(CH 2 ) n2 NH-, Wherein n2=2~6.

specific Embodiment approach 2

[0017] Specific embodiment two: the synthetic method of the described triazine series char-forming-foaming agent of specific embodiment one, carry out according to the following steps: one, take cyanuric chloride as starting raw material, take inorganic alkali as acid-binding agent, Add cyanuric chloride into the reaction vessel, add a solvent into the reaction vessel to disperse the cyanuric chloride evenly, add alcohol amine, alkylamine and acid-binding agent dropwise to the reactor under the condition of -5~10°C, The acid-binding agent is added dropwise, so that the pH of the solution is 5-8. After 2-4 hours of reaction, the first step of substitution reaction is completed, and a substituted product of cyanuric chloride, 2-hydroxyalkylamino-4,6 -Dichloro-1,3,5-triazine and 2-alkylamino-4,6-dichloro-1,3,5-triazine, wherein the mass ratio of alcoholamine to alkylamine is 1~ 50:1; 2. Raise the temperature to 30-50°C, then add diamine and acid-binding agent dropwise, and contro...

specific Embodiment approach 3

[0019] Embodiment 3: This embodiment is different from Embodiment 2 in that: in step 1, the solvent is acetone, water or a mixture of acetone and water. Others are the same as in the second embodiment.

[0020] In this embodiment, when the solvent is a mixture, acetone and water are mixed in any ratio.

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Abstract

The invention relates to a triazine carbon forming-foaming agent, a synthesis method of the triazine carbon forming-foaming agent, and a flame-retardant polymer composite material prepared from the triazine carbon forming-foaming agent. The invention aims at solving the problem that a carbon forming-foaming agent obtained by the prior art has a very large polarity, strong hygroscopicity, and poorcompatibility with polymers in processing, and thus leading poor surface smoothness of materials extruded fast. A structural general formula of the triazine carbon forming-foaming agent is shown in the patent specification. The synthesis method of the triazine carbon forming-foaming agent comprises the following steps of adding a solvent into cyanuric chloride, adding dropwisely an alkylol amine, an alkylamine and an acid binding agent into the cyanuric chloride solution to obtain a single-substituted substance, preparing a double-substituted substance, heating, carrying out extraction filtration, washing, and drying to obtain the triazine carbon forming-foaming agent. The flame-retardant polymer composite material prepared from the triazine carbon forming-foaming agent comprises a thermoplastic resin, a halogen-free intumescent flame retardant and a processing auxiliary agent. Compared with the existing triazine carbon forming-foaming agent, the triazine carbon forming-foaming agent provided by the invention has better compatibility with non-polar polymers, can be better dispersed in a polymer, and can be utilized for the flame resistance field.

Description

technical field [0001] The invention relates to a char-forming-foaming agent, its synthesis method and a flame-retardant polymer composite material made from it. Background technique [0002] Polyethylene (PE) and polypropylene (PP) are two general-purpose plastics that are most widely used and have the largest output. Because of their excellent electrical insulation, odorless and non-toxic, good chemical stability, convenient processing, and low density, they are widely used in plastics. It is widely used in automobile industry, household appliances, electronics, wire and cable, packaging and building materials. However, the oxygen index of polyethylene and polypropylene is generally 17%, which is extremely flammable and has molten droplets when burning. As the fire safety issue has been paid more and more attention by the society, the flame retardant requirements for flammable polymer materials have been continuously improved. Although traditional halogenated flame retar...

Claims

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Application Information

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IPC IPC(8): C08G73/06C08L23/06C08L23/12C08L79/04C08L83/04C08K3/32
Inventor 李斌杨坤
Owner NORTHEAST FORESTRY UNIVERSITY
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