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Flame-retardant conductive nylon composite material and preparation method thereof

A nylon composite material and nylon technology, applied in the field of flame-retardant conductive nylon composite materials and their preparation, can solve the problems of composite material molding processing performance and mechanical performance degradation, and achieve improved electronic mobility, good conductivity, and excellent static elimination effect of effect

Inactive Publication Date: 2019-01-25
安庆市泽烨新材料技术推广服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

People usually improve the electrical properties and thermal conductivity of polymers by adding conductive fillers. However, to endow nylon resin with ideal electrical and thermal properties, it needs to be filled with a large amount of conductive fillers, which will lead to the molding processability and mechanical properties of composite materials. a sharp drop in

Method used

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  • Flame-retardant conductive nylon composite material and preparation method thereof
  • Flame-retardant conductive nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The preparation method of modified conductive mica powder comprises the following steps:

[0025] 1) Calculated in parts by weight, weigh 40 parts of conductive mica powder, 10 parts of aluminum borate whiskers, 20 parts of conductive carbon black, 0.4 part of lubricating base oil and 0.6 part of aminopropyltrimethoxysilane for use;

[0026] 2) Mix conductive mica powder and aluminum borate whiskers evenly and roast in a vacuum furnace at 1100°C for 6 hours, cool the roasted product to room temperature, disperse the roasted product with chitosan aqueous solution, filter, and bake the filtered product Just dry;

[0027] 3) Stir and react the dried filtrate in step 2), conductive carbon black, aminopropyltrimethoxysilane and lubricating base oil at 75°C for 60 minutes.

Embodiment 2

[0029] The preparation method of modified conductive mica powder comprises the following steps:

[0030] 1) Calculated in parts by weight, weigh 50 parts of conductive mica powder, 5 parts of aluminum borate whiskers, 30 parts of conductive carbon black, 1.2 parts of lubricating oil base oil and 2.4 parts of isopropyltriethoxysilane for later use;

[0031] 2) Mix conductive mica powder and aluminum borate whiskers evenly and roast in a vacuum furnace at 1300°C for 3 hours, cool the roasted product to room temperature, disperse the roasted product with chitosan aqueous solution, filter, and bake the filtered product Just dry;

[0032] 3) Stir and react the dried filtrate in step 2), conductive carbon black, isopropyltriethoxysilane and lubricating base oil at 85°C for 30 minutes.

Embodiment 3

[0034] A flame-retardant conductive nylon composite material, calculated in parts by weight, includes the following raw materials:

[0035] 70 parts of nylon 610 resin, 118 parts of nylon, 15 parts of modified conductive mica powder of embodiment 1, 3 parts of aramid fiber, 2 parts of chromium oxide, 3 parts of zirconium oxide, 3 parts of decabromodiphenylethane, maleic anhydride 6 parts of grafted ethylene-octene copolymer, 0.8 part of styrene-maleic anhydride copolymer and tris[2,4-di-tert-butylphenyl]phosphite.

[0036] The preparation method of flame-retardant conductive nylon composite material comprises the following steps:

[0037] 1) First mix chromium oxide, zirconium oxide, the modified conductive mica powder of Example 1, nylon 610 resin, nylon 11 and maleic anhydride grafted ethylene-octene copolymer, and prepare master batches with a twin-screw extruder ;

[0038] 2) Mix the masterbatch obtained in step 1) with aramid fiber, antimony trioxide, tris[2,4-di-tert-b...

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Abstract

The invention provides a flame-retardant conductive nylon composite material and a preparation method thereof. The flame-retardant conductive nylon composite material is prepared from nylon 610 resin,nylon 11, modified conductive mica powder, aramid fiber, chromium oxide, zirconium oxide, a flame retardant, a toughening agent, a compatilizer and an antioxidant, wherein the modified conductive mica powder is mainly prepared from conductive mica powder, aluminum borate whisker, conductive carbon black, lubricating oil base oil and a silane coupling agent. The preparation method of the flame-retardant conductive nylon composite material comprises the following steps: (1) uniformly mixing the chromium oxide, the zirconium oxide, the modified conductive mica powder, the nylon 610 resin, the nylon 11 and the toughening agent, thus preparing master batch by using a twin-screw extruder; (2) mixing the master batch obtained in step (1) with the aramid fiber, the flame retardant, the antioxidant and the compatilizer, and carrying out melt extrusion through the twin-screw extruder, thus obtaining the flame-retardant conductive nylon composite material. The flame-retardant conductive nylon composite material provided by the invention is excellent in conductivity and mechanical performance.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a flame-retardant conductive nylon composite material and a preparation method thereof. Background technique [0002] Polyamide fiber, commonly known as nylon, has a wide range of uses. The automotive industry is often used to manufacture auto parts such as instrument panels, body panels, interior trim panels, steering wheels, sound insulation panels, door locks, bumpers, ventilation pipes, etc. The home appliance industry is often used in Manufactures such as refrigerators, televisions, washing machines, vacuum cleaners, food mixers, telephone casings, etc., are often used in the construction and decoration industry to manufacture sanitary ware, swimming pool linings, pipes and pipe fittings, etc., and are also used to manufacture safety helmets , motorcycle baffles, heels of shoes, snow sporting goods, toys, clocks, speaker casings, suitcases, buttons, cos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08L77/10C08L51/06C08K9/06C08K3/34C08K7/08C08K3/04C08K3/22C08K5/03C08K5/523
CPCC08K2003/2244C08K2003/2251C08L77/06C08L2201/02C08L2205/02C08L2205/035C08L2205/16C08L77/02C08L77/10C08L51/06C08K9/06C08K3/34C08K7/08C08K3/04C08K3/22C08K5/03C08K5/523
Inventor 汪泽维
Owner 安庆市泽烨新材料技术推广服务有限公司
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