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Halogen-free flame-retardant reinforced polyamide composite material and preparation method thereof

A composite material, polyamide technology, applied in the field of materials, can solve the problems of production, application and environmental secondary disasters, failure to achieve high temperature resistance, toxic smoke and dust, etc.

Active Publication Date: 2017-03-22
SINOPLAST NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of a low content of the third monomer is not enough to improve its processing performance, and the processing range is too narrow, and the addition of a high content of the third monomer will make the melting point of the copolymer resin too low to meet the high temperature resistance requirements
[0004] Halogenated flame retardants used to be the most commonly used flame retardants for polyamides, but most halogenated flame retardants generate toxic smoke and corrosive gases when burned, which brings secondary disasters to production, application and the environment

Method used

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  • Halogen-free flame-retardant reinforced polyamide composite material and preparation method thereof
  • Halogen-free flame-retardant reinforced polyamide composite material and preparation method thereof
  • Halogen-free flame-retardant reinforced polyamide composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078]The raw material composition and synthesis steps of the polyamide 6T / 11 resin used in the present embodiment are as follows:

[0079] (1) Add monomer 1 after vacuum drying: 1mol hexamethylenediamine, 1mol terephthalic acid, 0.5mol 11-aminoundecanoic acid into the stirred polymerization reactor, and add 4% of the total weight of monomer 1 at the same time Polyesteramide, 1.5% benzoic acid, 0.2% N,N'-bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,3-phthalamide, add 100mL Water is used as the medium for mass transfer and heat transfer; then vacuumize for 5 minutes, and pass nitrogen for 5 minutes, and circulate like this 6 times, so that the reactant exists in the environment under nitrogen protection, and the system pressure in the stirred polymerization reactor is controlled to be 0.3MPa;

[0080] (2) within 3 hours, heat the stirred polymerization reactor airtight to 275°C at a uniform speed, adjust the stirring speed of the stirred polymerization reactor to 40r / min, wherein, ...

Embodiment 2

[0090] The raw material composition and synthesis steps of the polyamide 6T / 11 resin used in this example are the same as those in Example 1.

[0091] In this embodiment, a halogen-free flame-retardant reinforced polyamide composite material is prepared from the following raw materials:

[0092]

[0093] The preparation method of the above-mentioned halogen-free flame-retardant reinforced polyamide composite material comprises the following steps:

[0094] (1) Put the polyamide 6T / 11 resin and polyhexamethylene adipamide resin at 90°C, dry for 5 hours, and cool, and put the cooled polyamide 6T / 11 resin, polyhexamethylene adipamide resin , and toluene diisocyanate, 2,2'-(1,3-phenylene)-bisoxazoline, N,N'-bis(2,2,6,6-tetramethyl-4-piperidinyl )-1,3-phthalamide and bis(2,6-di-tert-butyl-4-methylphenyl)pentaerythritol diphosphate are added to a high-speed mixer for mixing;

[0095] (2) coupling agent (γ-aminopropyltriethoxysilane), montmorillonite, aluminum diethylphosphinate...

Embodiment 3

[0099] The raw material composition and synthesis steps of the polyamide 6T / 11 resin used in this example are the same as those in Example 1.

[0100] In this embodiment, a halogen-free flame-retardant reinforced polyamide composite material is prepared from the following raw materials:

[0101]

[0102] The preparation method of the above-mentioned halogen-free flame-retardant reinforced polyamide composite material comprises the following steps:

[0103] (1) Put the polyamide 6T / 11 resin and polyhexamethylene adipamide resin at 90°C, dry for 5 hours, and cool, and put the cooled polyamide 6T / 11 resin, polyhexamethylene adipamide resin , and toluene diisocyanate, 2,2'-(1,3-phenylene)-bisoxazoline, N,N'-bis(2,2,6,6-tetramethyl-4-piperidinyl )-1,3-phthalamide and bis(2,6-di-tert-butyl-4-methylphenyl)pentaerythritol diphosphate are added to a high-speed mixer for mixing;

[0104] (2) coupling agent (γ-aminopropyltriethoxysilane), montmorillonite, aluminum diethylphosphinate...

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Abstract

The invention relates to a halogen-free flame-retardant reinforced polyamide composite material and a preparation method thereof. The halogen-free flame-retardant reinforced polyamide composite material is prepared by polyamide 6T / 11 resin, aliphatic polyamide resin, toluene diisocynate, 2,2'-(1,3-phenylene)-bisoxazoline, a coupling agent, layered silicate, alkyl phosphinate, melamine polyphosphate, zinc borate, N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)-1,3-phthalic diamide and bis(2,6-ditert-butyl-4-methyl phenyl) pentaerythritol diphosphate. The halogen-free flame-retardant reinforced polyamide composite material is high in flame retardance, high in tensile strength, high in flowability, low in water absorption rate, and applicable to fields such as electronic products, LEDs, cars, aerospace and military industry.

Description

technical field [0001] The invention relates to the field of materials, in particular to a halogen-free flame-retardant reinforced polyamide composite material and a preparation method thereof. Background technique [0002] High temperature resistant polyamides are usually prepared by polycondensation of aliphatic diamines and aromatic diacids, or aromatic diamines and aliphatic diacids. Due to the introduction of benzene rings in the molecular main chain, high temperature resistant polyamide not only maintains the advantages of aliphatic polyamides such as good mechanical properties, acid and alkali resistance and self-lubricating properties, but also overcomes its high water absorption and poor dimensional stability. The shortcomings of the best make it especially suitable for the automotive industry to replace some metal structural parts in the car to achieve lightweight, and can also be used to manufacture insulating substrates for electronic devices, or for surface moun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L77/12C08L77/06C08K13/04C08K7/00C08K3/34C08K5/5313C08K5/3492C08K3/38C08K5/29C08K5/353C08K5/544C08G69/36C08G69/44
CPCC08G69/36C08G69/44C08L77/00C08L77/12C08L2201/02C08L2205/02C08L77/06C08K13/04C08K7/00C08K3/346C08K5/5313C08K5/34928C08K2003/387C08K5/29C08K5/353C08K5/544
Inventor 朱怀才王忠强师文博胡国胜
Owner SINOPLAST NEW MATERIAL
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