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Lightweight flame retardant modified polyamide material and its preparation method

A polyamide modification technology, which is applied in the field of lightweight modified polyamide materials and its preparation, can solve the problems of high density, poor surface quality, and large addition amount of flame-retardant products, and achieve excellent material performance, lower density, and low price effect

Inactive Publication Date: 2014-06-11
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a plastic material, nylon 66 has certain self-extinguishing properties, but it cannot fully meet the requirements of some fields and still has fire hazards, especially when it is used in electronic and electrical related products, it must be modified by flame retardant
However, most of the flame retardants used in the market for flame retardant modification of nylon 66 have high density and are added in large amounts. The addition of flame retardants not only endows the material with flame retardancy, but also results in high density and The problem of poor surface quality

Method used

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  • Lightweight flame retardant modified polyamide material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] PA66 (viscosity 2.4) 100 parts,

[0035] Flame retardant (brominated polystyrene: antimony trioxide = 4 / 1) 16 parts,

[0036] Hollow glass microspheres (density 0.32g / cm 3 ) 5 copies,

[0037] Compatibilizer (PP-g-MAH) 5 parts,

[0038] Antioxidant (1098 / 168=1 / 2) 0.3 part,

[0039] Lubricant (ethylene-acrylic acid copolymer) 0.3 part;

[0040] According to the above weight content, PA66, flame retardant, hollow glass beads, compatibilizer, and other additives are put into a high-speed mixer and mixed at a high speed. The speed of the high-speed mixer is controlled at 700rmp, and the mixing temperature is 60°C. 3min; feed the mixture into the hopper of the extruder, control the temperature of each zone at 250-265°C, and cut the strands of the extruder into pellets to obtain the composition. The mechanical performance test is shown in Table 1.

Embodiment 2

[0042] PA66 (viscosity 2.8) 100 parts,

[0043] 30 parts of alkali-free glass fiber (7μm in diameter),

[0044] Flame retardant (decabromodiphenylethane: sodium antimonate = 3 / 1) 28 parts,

[0045] Hollow glass microspheres (density 0.48g / cm 3 ) 10 parts,

[0046] Compatibilizer (POE-g-MAH) 12 parts,

[0047] Antioxidant (1010 / 168=1 / 2) 1 part,

[0048] Lubricant (silicone powder) 0.8 parts;

[0049] According to the above weight content, PA66, flame retardant, hollow glass beads, compatibilizer, and other additives are put into a high-speed mixer and mixed at a high speed. The speed of the high-speed mixer is controlled to 500rmp, and the mixing temperature is 70°C. 6min; feed the mixed material to the hopper of the extruder, and add the glass fiber to the feeding port on the side of the glass fiber port of the extruder. The composition can be obtained, and its mechanical property test is shown in Table 1.

Embodiment 3

[0051] PA66 (viscosity 3.2) 100 parts,

[0052] 60 parts of alkali-free glass fiber (7μm in diameter),

[0053] Flame retardant (bromotriazine: melamine polyphosphate = 2 / 1) 20 parts,

[0054] Hollow glass microspheres (density 0.6g / cm 3 ) 15 copies,

[0055] Compatibilizer (EPDM-g-MAH) 18 parts,

[0056] Antioxidant (1098 / 168=1 / 2) 0.6 part,

[0057] Lubricant (TAF) 1.0 parts;

[0058] According to the above weight content, PA66, flame retardant, hollow glass beads, compatibilizer, and other additives are put into a high-speed mixer and mixed at a high speed. The speed of the high-speed mixer is controlled at 600rmp, and the mixing temperature is 80°C. 5min; feed the mixed material to the hopper of the extruder, and add the glass fiber to the feeding port on the side of the glass fiber port of the extruder. The composition can be obtained, and its mechanical property test is shown in Table 1.

[0059] Table 1

[0060]

[0061] It can be seen from Table 1 that the ad...

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Abstract

The invention belongs to the technical field of polymer materials, and relates to a lightweight flame retardant modified polyamide material and its preparation method. The material comprises the following components by weight: 100 parts of nylon 66, 0-60 parts of glass fiber, 16-28 parts of a flame retardant, 5-15 parts of hollow glass bead, 5-18 parts of a compatibilizer, 0.3-1 part of an antioxidant and 0.3-1 part of a lubricant. The prepared lightweight flame retardant modified polyamide material is low in density, meets the lightweight requirements of modern society on materials, is conducive to energy saving and emission reduction, and has the characteristics of good processing fluidity, excellent surface quality, outstanding physical mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a lightweight modified polyamide material and a preparation method thereof. Background technique [0002] Nylon 66 material itself is widely used in industries such as automobiles, construction, electronic appliances and home appliances because of its high strength, high heat resistance, high fatigue resistance, chemical resistance and outstanding oil resistance. As a plastic material, nylon 66 material has certain self-extinguishing properties, but it cannot fully meet the requirements of some fields and still has fire hazards, especially when it is used in electronic and electrical related products, it must be flame-retardant modified. However, most of the flame retardants used in the market for flame retardant modification of nylon 66 have high density and are added in large amounts. The addition of flame retardants not only endows the material with flame retardancy, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08K13/04C08K7/14C08K7/28C08K5/3492C08K5/03C08K3/22C08K3/24
CPCC08L77/06C08K2201/003C08L2201/02C08L2205/03C08L2205/035C08L25/06C08L51/06C08L23/0869C08K13/04C08K7/28C08K3/2279C08L83/04C08K7/14C08K5/03C08K3/24C08K5/3492C08K5/34928C08K5/20
Inventor 赵敏
Owner HEFEI GENIUS NEW MATERIALS
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