Conductive nylon 66 material and preparation method thereof

A nylon, 6680%-95% technology, applied in the field of conductive nylon materials and its preparation, can solve the problems of high volume resistivity and limited application, and achieve the effects of excellent electrical conductivity, convenient operation, and improved mechanical properties

Inactive Publication Date: 2010-10-27
SHANGHAI KINGFA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But for ordinary nylon 66 material, its volume resistivity is greater than 10 14 Ω·cm, is an insulating material, which limits its application in many aspects

Method used

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  • Conductive nylon 66 material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0016] A conductive nylon 66, the weight percentage of each component is: nylon 6694.46%, carbon nanotube 1.05%, compatible toughening agent 1.95%, nano-montmorillonite 1.04%, antioxidant 0.5%, nucleating agent 0.5% %, lubricant 0.5%.

[0017] The nylon 66 material viscosity is a polyamide resin (Germany BASF Co., Ltd.) of 2.8. The carbon nanotubes are multi-walled carbon nanotubes with an average outer diameter of 11 nm, an average length of 11 μm, and a purity greater than 95%. The particle size of the nano-montmorillonite is 80nm. The compatible toughening agent is polyethylene-octene copolymer grafted with maleic anhydride, and the grafting rate is greater than or equal to 0.9% (Nanjing Youyou Auxiliary Chemical Co., Ltd.). The antioxidant is N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine (Nanjing Milan Chemical Co., Ltd.). The nucleating agent is talcum powder with a particle size of about 1250 mesh (Guilin Tiancheng Co., Ltd.). The lubr...

Embodiment 2

[0021] A conductive nylon 66, the weight percent of each component is: nylon 6688.6%, carbon nanotube 3%, compatible toughening agent 4.5%, nanometer montmorillonite 2.4%, antioxidant 0.5%, nucleating agent 0.5% %, lubricant 0.5%.

[0022] The nylon 66 material viscosity is a polyamide resin (Germany BASF Co., Ltd.) of 2.8. The carbon nanotubes are multi-walled carbon nanotubes with an average outer diameter of 11 nm, an average length of 11 μm, and a purity greater than 95%. The particle size of the nano-montmorillonite is 80nm. The compatible toughening agent is polypropylene grafted with maleic anhydride, and the grafting rate is greater than or equal to 0.9% (Nanjing Youyou Auxiliary Chemical Co., Ltd.). The antioxidant is N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine (Nanjing Milan Chemical Co., Ltd.). The nucleating agent is talcum powder with a particle size of about 1250 mesh (Guilin Tiancheng Co., Ltd.). The lubricant is ethylene ac...

Embodiment 3

[0026] A conductive nylon 66, the weight percent of its components is: nylon 6684%, carbon nanotube 5%, compatible toughening agent 4.5%, nano-montmorillonite 5%, antioxidant 0.5%, nucleating agent 0.5% %, lubricant 0.5%.

[0027] The nylon 66 material viscosity is a polyamide resin (Germany BASF Co., Ltd.) of 2.8. The carbon nanotubes are multi-walled carbon nanotubes with an average outer diameter of 11 nm, an average length of 11 μm, and a purity greater than 95%. The particle size of the nano-montmorillonite is 80nm. The compatible toughening agent is polypropylene grafted with maleic anhydride, and the grafting rate is greater than or equal to 0.9% (Nanjing Youyou Auxiliary Chemical Co., Ltd.). The antioxidant is N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine (Nanjing Milan Chemical Co., Ltd.). The nucleating agent is talcum powder with a particle size of about 1250 mesh (Guilin Tiancheng Co., Ltd.). The lubricant is ethylene acrylic aci...

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Abstract

The invention provides a conductive nylon 66 material and a preparation method thereof. The conductive nylon 66 material consists of the following components in percentage by weight: 80 to 95 percent of nylon 66, 1 to 10 percent of carbon nanotubes, 1 to 15 percent of nanomontmorillonite, 1 to 10.5 percent of compatible toughening agent, 0.3 to 1 percent of antioxidant, 0.3 to 1 percent of nucleating agent and 0.3 to 1 percent of lubricant. The preparation method includes the following steps that: the carbon nanotubes and the nanomontmorillonite are first mixed with the compatible toughening agent accounting for 0.5 to 3.75 percent of the total weight and the nylon 66 accounting for 5 to 20 percent of the total weight, an internal mixer or a double-screw extruder is used for preparing master batch, and the master batch is then mixed with the rest of nylon 66 and compatible toughening agent, the antioxidant, the nucleating agent and the lubricant, and is extruded by the double-screw extruder. The invention has the following advantages that: the conductive nylon 66 material has excellent conductivity, the mechanical property is greatly enhanced, moreover, the preparation method is simple, and the operation is convenient.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a conductive nylon material and a preparation method thereof. Background technique [0002] Carbon Nanotubes (CNTs for short) is a new type of carbon structure discovered by Iijima of NEC Corporation in Japan in 1991. It is a tube formed by graphene sheets formed by carbon atoms. Carbon nanotubes are divided into single-walled carbon nanotubes (Single-Walled Carbon Nanotubes) and multi-walled carbon nanotubes (Multi-Walled Carbon Nanotubes). Because of its excellent electrical, magnetic, optical, thermal and other properties, it has a good application prospect in the preparation of polymer functional composite materials. The good electrical properties, magnetic properties and optical properties of carbon nanotubes can greatly improve the electrical conductivity, electromagnetic shielding and photoelectron emission properties of composite materials. The strong broadban...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08K13/02C08K3/04C08K3/34B29C47/00
Inventor 易庆锋王灿耀孙刚苏妤吉继亮
Owner SHANGHAI KINGFA SCI & TECH
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