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Heat conduction nylon composite material and preparation method thereof

A technology of thermally conductive composite material and nylon composite material, which is applied in the field of thermally conductive materials, can solve problems such as difficulty in meeting the use performance, limit the wide application of thermally conductive plastics, etc., and achieve the effects of being beneficial to stability, improving physical and mechanical properties, and having a simple preparation method.

Active Publication Date: 2012-10-31
辰东意普万新材料(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it is difficult for thermally conductive plastics to have high thermal conductivity and excellent mechanical properties at the same time, and it is difficult to meet the actual required performance, thus limiting the wide application of thermally conductive plastics

Method used

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  • Heat conduction nylon composite material and preparation method thereof
  • Heat conduction nylon composite material and preparation method thereof
  • Heat conduction nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of heat-conducting nylon composite material, the mass percentage composition comprising component and each component is as follows:

[0031]

[0032] The nylon is selected from PA6; the compatibilizer is maleic anhydride grafted ethylene-1-octene copolymer (POE-g-MAH); the high thermal conductivity fiber is carbon fiber; the high thermal conductivity filler is graphene and a mixture of nano-alumina; the auxiliary agent includes a temperature-resistant anti-aging agent, a lubricant, a nucleating agent, a branching agent and a chain extender. The mass percent of each component of the auxiliary agent in the total amount of the heat-conducting nylon composite material is:

[0033]

[0034] The temperature-resistant anti-aging agent is a mixture of hindered phenolic antioxidant and copper chloride.

[0035] Described lubricant is calcium stearate.

[0036] The nucleating agent is talcum powder.

[0037] Described branching agent chemical structural formula is...

Embodiment 2

[0042] A kind of heat-conducting nylon composite material, the mass percentage composition comprising component and each component is as follows:

[0043]

[0044] The nylon is selected from the mixture of PA6 and PA66; the compatibilizer is a maleic anhydride grafted thermoplastic elastomer (TPE-g-MAH) and a maleic anhydride grafted ethylene-propylene-cyclopentadiene terpolymer (EPDM-g-MAH) mixture; the high thermal conductivity fiber is carbon nanotube; the high thermal conductivity filler is a mixture of aluminum nitride and silicon carbide; the additive contains temperature resistance Aging agent, lubricant, nucleating agent, branching agent and chain extender.

[0045] The mass percent of each component of the auxiliary agent in the total amount of the heat-conducting nylon composite material is:

[0046]

[0047] The temperature-resistant anti-aging agent is a phosphite antioxidant.

[0048] The lubricant is a mixture of ethylene bis stearic acid amide and silico...

Embodiment 3

[0053] A kind of heat-conducting nylon composite material, the mass percentage composition comprising component and each component is as follows:

[0054]

[0055] The nylon is selected from a mixture of PA612 and PA1010; the compatibilizer is maleic anhydride grafted ethylene-propylene-cyclopentadiene terpolymer (EPDM-g-MAH); The high thermal conductivity fiber is carbon fiber; the high thermal conductivity filler is a mixture of boron nitride and scaly high thermal conductivity carbon powder; agent.

[0056] The mass percent of each component of the auxiliary agent in the total amount of the heat-conducting nylon composite material is:

[0057]

[0058] The temperature-resistant anti-aging agent is an alkali metal halide.

[0059]Described lubricant is the mixture of calcium stearate and ethylene bis stearic acid amide.

[0060] The nucleating agent is selected from talcum powder.

[0061] The branching agent is trihydroxypropylene oxide.

[0062] The chain extend...

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Abstract

The invention provides a heat conduction nylon composite material and a preparation method thereof. The heat conduction nylon composite material comprises the following components by mass: 20-60 percent of nylon, 3-10 percent of a compatilizer, 5-10 percent of high thermal conductivity fiber, 30-50 percent of a high thermal conductivity filling material and 0.5-16 percent of assistants. The heat conduction nylon composite material has the advantages as follows: through the addition proportion control of a branching agent and a chain extendor, the effect that slight crosslinking occurs in the modification process of the material and deep crosslinking is conducted in the processing process of injection moulding in a later period is achieved, so that the material is directly changed from a thermoplastic material into a thermoset product, and the physical and mechanical properties of the product are greatly improved, so as to solve the problem of over large impact on the physical properties of the product caused by high filling amount of heat conduction ingredients.

Description

technical field [0001] The invention relates to the technical field of heat-conducting materials, in particular to a heat-conducting nylon composite material and a preparation method thereof. Background technique [0002] Traditional plastics are mostly heat insulating materials, and the thermally conductive plastics developed by CoolPoly have brought new opportunities in this field. The commercial application of CoolPoly's thermally conductive plastics began in 1998 and has produced about one million parts. The product has been successful in many fields and is widely used in various consumer electronics, power electronics, automobiles, motorcycles, lighting, and medical equipment. and other tools, etc. CoolPoly thermally conductive plastics are based on engineering plastics and general-purpose plastics, such as PP, ABS, PC, PA, LCP, PPS, PEEK, etc. The thermal conductivity of typical thermally conductive plastics ranges from 1-20W / m-K, and some grades can reach 100W / m-K. ...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L77/02C08L77/06C08L51/06C08L51/00C08K13/04C08K7/00C08K3/04C08K7/06C08K3/22C08K3/28C08K3/38C08K3/34
Inventor 高原梁效礼杨冬黄俊辉
Owner 辰东意普万新材料(广东)有限公司
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