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Phosphine copolyamide / nano montmorillonite flame-retardant composite material and preparation thereof

A technology of flame-retardant composite materials and nano-montmorillonite, which is applied in the field of phosphine-containing copolyamide/nano-montmorillonite flame-retardant composite materials and its preparation, can solve the problems of low mechanical properties of polyamide, large amount of inorganic flame retardants, and In order to avoid problems such as poor combustion effect, it can achieve the effect of excellent performance, high flame retardant efficiency, and increased safety in use.

Inactive Publication Date: 2009-08-05
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that existing flame-retardant polyamides have a large amount of inorganic flame retardants, are easy to move out, have poor flame-retardant effects, low mechanical properties of polyamides, and easily cause environmental pollution when halogen-based flame-retardant polyamides are burned. Difficulties, and provide a phosphine-containing copolyamide / nano-montmorillonite flame-retardant composite material with low flame retardant dosage, long-lasting flame-retardant effect, high mechanical properties and no environmental pollution during combustion and its preparation method

Method used

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  • Phosphine copolyamide / nano montmorillonite flame-retardant composite material and preparation thereof
  • Phosphine copolyamide / nano montmorillonite flame-retardant composite material and preparation thereof
  • Phosphine copolyamide / nano montmorillonite flame-retardant composite material and preparation thereof

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Experimental program
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Effect test

Embodiment 1

[0022] In the phosphine-containing copolyamide / nano-montmorillonite flame-retardant composite material in the present embodiment, its parts by weight are 10 parts of organic montmorillonite dispersed in nanoparticles by 15 parts by weight of phosphine-containing prepolymer and parts by weight of In the phosphine-containing copolyamide synthesized by 75 parts of nylon 66 salt.

[0023] The polymeric molecular structure of the above-mentioned phosphine-containing copolyamide is

[0024]

[0025] x=1-100; y=1-100.

[0026] The intrinsic viscosity of the phosphine-containing copolyamide is between 1.2 and 2.5; the melting point of the above-mentioned phosphine-containing copolyamide is between 210 and 270°C.

[0027] The preparation method of producing above-mentioned phosphine-containing copolyamide / nanometer montmorillonite flame-retardant composite material comprises the following steps:

[0028] a) Preparation of hexamethylenediamine ethanol solution: dissolving 50 parts ...

Embodiment 2

[0036] In the phosphine-containing copolyamide / nano-montmorillonite flame-retardant composite material in the present embodiment, the organic montmorillonite of 7 parts by weight is dispersed in the phosphine-containing prepolymer of 7 parts by weight and the phosphine-containing prepolymer of 7 parts by weight. In the phosphine-containing copolyamide synthesized by 86 parts of nylon 66 salt.

[0037] The polymeric molecular structure of the above-mentioned phosphine-containing copolyamide is

[0038]

[0039] x=1-100; y=1-100.

[0040] The intrinsic viscosity of the phosphine-containing copolyamide is between 1.2 and 2.5; the melting point of the above-mentioned phosphine-containing copolyamide is between 210 and 270°C.

[0041] The preparation method of producing above-mentioned phosphine-containing copolyamide / nanometer montmorillonite flame-retardant composite material comprises the following steps:

[0042] a) Preparation of hexamethylenediamine ethanol solution: dis...

Embodiment 3

[0050] Phosphine-containing copolyamide / nanometer montmorillonite flame-retardant composite material in the present embodiment, its weight part is that 5 parts of organic montmorillonite are dispersed in the phosphine-containing prepolymer of 10 parts by weight and 10 parts by weight of organic montmorillonite with nanoparticles In the phosphine-containing copolyamide synthesized by 85 parts of nylon 66 salt.

[0051] The polymeric molecular structure of the above-mentioned phosphine-containing copolyamide is

[0052]

[0053] x=1-100; y=1-100.

[0054] The intrinsic viscosity of the phosphine-containing copolyamide is between 1.2 and 2.5; the melting point of the above-mentioned phosphine-containing copolyamide is between 210 and 270°C.

[0055] The preparation method of producing above-mentioned phosphine-containing copolyamide / nanometer montmorillonite flame-retardant composite material comprises the following steps:

[0056] a) Preparation of hexamethylenediamine etha...

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Abstract

The invention relates to phosphoric copolyamide / nano-meter montmorillonite flame-retardant composite material and a method for preparing the same. The invention mainly aims at solving the technical problems that the prior flame-retardant polyamide uses more inorganic flame retardant, is easy to precipitate and has poor flame-retardant effect and low mechanical property, and the halogenated flame retardant polyamide is easy to pollute the environment during combustion. The organic montmorillonite is dispersed in the form of nano-particles in phosphoric copolyamide formed by the polymerization of phosphoric prepolymer and nylon 66 salt. The method for preparing the phosphoric copolyamide / nano-meter montmorillonite flame-retardant composite material comprises the steps of preparing the solution of ethanol in hexamethylene diamine, preparing the nylon 66 salt, preparing the phosphoric prepolymer and preparing the phosphoric copolyamide / nano-meter montmorillonite flame-retardant composite material. The phosphoric copolyamide / nano-meter montmorillonite flame-retardant composite material needs less flame retardant, has high flame-retardant efficiency and high mechanical property and causes no poisonous and harmful gas during combustion to pollute the environment.

Description

technical field [0001] The invention relates to a phosphine-containing copolyamide / nano-montmorillonite flame-retardant composite material and a preparation method thereof, which belongs to a flame-retardant composite material of a main chain containing aryl phosphine oxide-containing copolyamide and nano-montmorillonite and its preparation method. Background technique [0002] Polyamide (PA), commonly known as nylon, is a polymer compound containing amide groups in the main chain. It has comprehensive advantages such as high melting point, high strength, wear resistance, oil resistance and general organic solvents. It is widely used in the production of knitwear and tire curtains. Threads, filter cloths, ropes, fishing nets, auto parts, mechanical parts, packaging materials, etc. However, as a polymer material, nylon is relatively flammable, which limits the application of nylon in special fields such as aerospace and electronic appliances. Commercialized flame retardant ...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08K3/34C08L85/02
Inventor 李巧玲杨晓峰叶云景红霞张学俊陈志萍
Owner ZHONGBEI UNIV
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