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Antiflaming heat-conduction PA66 (Polymide 66) composite material and preparation method thereof

A composite material and thermally conductive filler technology, applied in the field of PA66 composite materials, can solve the problems of difficult production and processing, many links, and high cost, and achieve the effects of excellent processing performance, wide range of raw materials, and high-efficiency flame retardant performance.

Inactive Publication Date: 2012-04-04
SHANGHAI SUNNY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This has led to the fact that metal materials have to be used for production and processing at present, exposing the shortcomings of difficult material production and processing, many links, low efficiency and high cost.

Method used

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  • Antiflaming heat-conduction PA66 (Polymide 66) composite material and preparation method thereof
  • Antiflaming heat-conduction PA66 (Polymide 66) composite material and preparation method thereof
  • Antiflaming heat-conduction PA66 (Polymide 66) composite material and preparation method thereof

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Experimental program
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Embodiment 1～10

[0027] A preparation method of flame-retardant and heat-conducting PA66 composite material, comprising the following steps:

[0028] (1) Prepare materials according to the components and contents in Table 1 and Table 3.

[0029] (2) Put the above raw materials into a high-efficiency mixer and mix for 10 minutes, then melt, knead, extrude, cool, dry, pelletize and pack through a twin-screw extruder. The used twin-screw extruder barrel has a temperature of 245 to 265°C in each subregion, and the number of revolutions of the screw is 300 rpm. The flame retardancy is tested according to the UL-94 standard, and the thermal conductivity is tested according to the GB / T 3135-2005 standard. See Table 2 and Table 4.

[0030] Table 1

[0031] components

[0032] Table 2

[0033] performance

[0034] table 3

[0035] components

[0036] Table 4

[0037] performance

[0038] From Table 2 and Table 4, it can be seen that the flame retardancy of ...

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Abstract

The invention relates to an antiflaming heat-conduction PA66 (Polymide 66) composite material and a preparation method thereof. The antiflaming heat-conduction PA66 composite material comprises the following raw materials by weight ratio: 40-60% of PA66, 10-20% of fibrous heat-conduction padding, 5-20% of metal nitride, 5-20% of heat-conduction powder, 5-20% of composite flame retardant, 0.1-0.5% of antioxidant and 0.1-0.5% of lubricant. The preparation method comprises the following steps of: weighing the raw materials according to the weight ratio; putting all the raw materials in a high-effective mixing machine; mixing for 5-10 minutes; discharging; putting the uniformly-mixed raw materials into a screw compressor; extruding; carrying out water cooling; pelleting; and obtaining the product. The invention has the characteristics of good antiflaming effect, excellent heat-conduction property, easiness for processing and the like.

Description

technical field [0001] The invention relates to a PA66 composite material, in particular to a flame-retardant and heat-conducting PA66 composite material and a preparation method thereof. Background technique [0002] With the international wide promotion of replacing metal materials with plastics in the fields of petrochemical, machinery, aerospace and civil use, plastics quickly occupy a broad market due to their unique advantages of light weight and corrosion resistance. Exhibits the outstanding advantage of replacing the use of metals. However, the use of plastics is greatly limited because they do not conduct heat as well as metal materials. At present, in the field of electronic appliances, especially the rapid development of LED, higher requirements are put forward for the materials used. The materials used are required to have a certain thermal conductivity or heat dissipation performance, and at the same time have high heat resistance and mechanical strength. Thi...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08K13/04C08K7/06C08K7/00C08K3/04C08K3/28C08K3/34C08K3/22C08K5/03
Inventor 才勇
Owner SHANGHAI SUNNY
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