Copolymerized flame-retardant PA6 material and preparation method thereof

A technology of copolymerization of flame retardant and raw materials, which is applied in the field of flame retardant materials, can solve the problems of igniting other objects, and achieve the effects of good flame retardant efficiency, high carbon formation rate, and fast reaction efficiency

Inactive Publication Date: 2020-12-15
江苏瑞美福新材料有限公司
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Problems solved by technology

But there is still the possibility of igniting other objects in the process of falling

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  • Copolymerized flame-retardant PA6 material and preparation method thereof
  • Copolymerized flame-retardant PA6 material and preparation method thereof
  • Copolymerized flame-retardant PA6 material and preparation method thereof

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Embodiment Construction

[0028] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0029] refer to Figure 1-2 , the invention discloses a copolymerized flame-retardant PA6 material, which is prepared from the following raw materials in parts by weight: DPPATPO, caprolactam, compounds with diamino groups, catalysts, and deionized water.

[0030] The DPPATPO is a diacid monomer 2-(dimethyl phosphate)-4,6(2'-carboxyethylphenylphosphinic acid)-s-triazine, and the specific preparation method of the DPPATPO is as follows:

[0031] (1) React the first chlorine atom in the cyanuric chloride molecule with trimethyl phosphite at 0-5°C;

[0032] (2) Substituting the reacted product in step (1) with 2-carboxyethylphenylphosphinic acid (CEPPA) at 40-50°C and 70-90°C respectively;

[0033] (3) Combining the triazine benzene ring structure ...

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Abstract

The invention discloses a copolymerized flame-retardant PA6 material and a preparation method thereof, and the copolymerized flame-retardant PA6 material is prepared from the following raw materials:DPPATPO, caprolactam, a compound with a diamino group, a catalyst and deionized water. ;According to the flame-retardant material prepared by the invention, the DPPATPO is prepared by taking cyanuricchloride as a monomer, reaction is simple, synthesis is easy, a finished product contains dicarboxyl active groups and can further react with amido, so that the finished product can participate in copolymerization to enter a molecular main chain, and meanwhile, the cyanuric chloride has a benzene ring-like structure, is high in carbon forming rate, and is more suitable for flame retardance and does not drop; and compared with PA6 with a DOTO derivative as a flame-retardant structural unit, the obtained material is more stable in performance, higher in flame-retardant efficiency and free of dripping.

Description

technical field [0001] The invention relates to the technical field of flame retardant materials, in particular to a copolymerized flame retardant PA6 material and a preparation method thereof. Background technique [0002] At present, the main research and application of flame retardancy are mostly blending flame retardancy, that is, PA6 is used as raw material, halogen flame retardant or N, P-containing compounds are added, and twin-screw blending is used. The current technology is relatively mature, and there are many application fields for industrialization of products. For injection molding and extrusion processing, but in the field of fiber and film, due to the characteristics of the material, it is not suitable for processing; [0003] At present, there are also researches on the copolymerization of flame-retardant PA6, which mainly uses DOPO as the derivative of the monomer as a flame-retardant unit for copolymerization. During the combustion process, the heat is ta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/42C08G69/36C08G69/04C07F9/6521
CPCC08G69/42C08G69/36C08G69/04C07F9/6521
Inventor 蔡铁锦陶岚郑江
Owner 江苏瑞美福新材料有限公司
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