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High heat-resistant and high-fluidity nylon composite material and preparation method thereof

A high-flow nylon and composite material technology, applied in the field of materials, can solve the problems of insufficient improvement of processing performance, low melting point of copolymer resin, and lack of high temperature resistance, etc., to achieve high fluidity, high heat resistance, and high tensile strength The effect of intensity

Active Publication Date: 2019-06-14
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

Method used

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  • High heat-resistant and high-fluidity nylon composite material and preparation method thereof
  • High heat-resistant and high-fluidity nylon composite material and preparation method thereof
  • High heat-resistant and high-fluidity nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] The raw material composition and synthesis steps of the nylon 6T / 11 resin used in the present embodiment are as follows:

[0077] (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;

[0078] (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, whe...

Embodiment 2

[0089] The raw material composition and synthesis steps of the nylon 6T / 11 resin used in this example are the same as those in Example 1.

[0090] In this embodiment, a high heat-resistant and high-flow nylon composite material is prepared from the following raw materials:

[0091]

[0092]

[0093] The preparation method of the above-mentioned high heat-resistant and high-fluidity nylon composite material comprises the following steps:

[0094] (1) Place the nylon 6T / 11 resin and polyhexamethylene adipamide resin at 90° C., after drying for 5 hours, cool, and place the cooled nylon 6T / 11 resin and polyhexamethylene adipamide resin , and toluene diisocyanate (TDI), 2,2'-(1,3-phenylene)-bisoxazoline (PBO), N,N'-bis(2,2,6,6-tetramethyl -4-piperidinyl)-1,3-benzenedicarboxamide, bis(2,6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphate, anti-dripping agent (polytetrafluoroethylene) Add simethicone oil to a high-speed mixer for mixing;

[0095] (2) Add coupling age...

Embodiment 3

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

[0100] In this embodiment, a high heat-resistant and high-flow nylon composite material is prepared from the following raw materials:

[0101]

[0102] The preparation method of the above-mentioned high heat-resistant and high-fluidity nylon composite material comprises the following steps:

[0103] (1) Place the nylon 6T / 11 resin and polyhexamethylene adipamide resin at 90° C., after drying for 5 hours, cool, and place the cooled nylon 6T / 11 resin and polyhexamethylene adipamide resin , and toluene diisocyanate (TDI), 2,2'-(1,3-phenylene)-bisoxazoline (PBO), N,N'-bis(2,2,6,6-tetramethyl -4-piperidinyl)-1,3-benzenedicarboxamide, bis(2,6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphate, anti-dripping agent (polytetrafluoroethylene) Add simethicone oil to a high-speed mixer for mixing;

[0104] (2) Add coupling agent (γ-aminop...

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Abstract

The invention relates to a high-heat-resistance high-flow nylon composite material and a preparation method thereof. The high-heat-resistance high-flow nylon composite material is prepared from nylon 6T / 11 resin, aliphatic polyamide resin, toluene diisocyanate and 2,2'-(1,3-phenylene)-oxazoline, a coupling agent, alkali-free glass fiber, N,N'-ethylidene bis stearamide, N,N'-di(2,2,6,6-tetramethyl-4-piperidyl)-1,3-phthalic diamide, bi(2,6-ditert-butyl-4-methyl phenyl) pentaerythritol diphosphate, a dripping resistance agent and dimethyl silicone oil. The high-heat-resistance high-flow nylon composite material has the advantages of high heat resistance, high liquidity, high tensile strength and low water absorption and can be applied to the fields of electronic appliances, LEDs, automobiles, aerospace, military and the like.

Description

technical field [0001] The invention relates to the field of materials, in particular to a high heat-resistant and high-fluidity nylon composite material and a preparation method thereof. Background technique [0002] High temperature resistant nylon is usually prepared by polycondensation of aliphatic diamine and aromatic diacid, or aromatic diamine and aliphatic diacid. Due to the introduction of benzene rings in the main molecular chain, high temperature resistant nylon not only maintains the advantages of aliphatic nylon, such as good mechanical properties, acid and alkali resistance, and self-lubricating properties, but also overcomes its shortcomings of high water absorption and poor dimensional stability. , making 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 mount technology. [0003] Industri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/10C08L77/06C08L27/18C08K13/04C08K7/14C08K5/3435C08K5/524C08K5/20B29C48/92B29C48/60
CPCB29C48/505B29C48/92B29C2948/9258B29C2948/92704C08L77/10C08L2201/08C08L2205/035C08L77/06C08L27/18C08K13/04C08K7/14C08K5/3435C08K5/524C08K5/20
Inventor 朱怀才王忠强朱正红师文博杨东方
Owner SINOPLAST NEW MATERIAL