High CTI reinforced and flame-retarded PA6 composite material with high glowing filament and preparation method

A composite material and high-glow wire technology, which is applied in the field of high-glow wire and high CTI reinforced flame-retardant PA6 composite materials, can solve the problems of increasing the difficulty of injection molding, restricting the application of nylon, and non-ignitable drippings, etc., to achieve machinability Good effect with excellent mechanical properties

Inactive Publication Date: 2015-07-01
NANTONG DONGFANG PLASTIC CO LTD
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Problems solved by technology

[0003] At present, the GWIT of pure PA6 flame retardant material can only reach 750°C, and the hot GWIT of glass fiber reinforced flame retardant PA6 composite material is also difficult to reach 800°C. They all meet the requirements of high glow wire by alloying with other engineering plastics, which not only increases the cost, but also increases the difficulty of injection molding
The Australian standard that came into use after

Method used

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  • High CTI reinforced and flame-retarded PA6 composite material with high glowing filament and preparation method

Examples

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[0026] Example 1~5

[0027] High glow wire high CTI reinforced flame retardant PA6 composite material and preparation method thereof comprise the following steps:

[0028] The composition of raw materials in the examples is shown in Table 1, wherein the phosphorus-nitrogen flame retardant is a compound of melamine phosphate, melamine, and pentaerythritol in a weight ratio of 3:3:4, and the compounded antimony trioxide is The compound of antimony and talcum powder in the weight ratio of 2:1, the filler is the compound of barium sulfate and talc powder in the weight ratio of 1:1, the toughening agent is ethylene ethyl acrylate, maleic anhydride grafted ethylene A compound of ethyl acrylate in a weight ratio of 1:1, a lubricant of TAF and silicone in a weight ratio of 1:1. First dry PA6 at 90°C for 4-8 hours, then put PA6 resin and 0.1-0.3% white oil by weight of PA6 resin in a high-mixer for 1-2 minutes, and then put other components together in a high-mixer. Mix in the machin...

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Abstract

The invention discloses a high CTI reinforced and flame-retarded PA6 composite material with a high glowing filament and a preparation method. The high CTI reinforced and flame-retarded PA6 composite material comprises the components in parts by weight: 30-50 parts of PA630, 25-35 parts of compounded fire retardant, 3-6 parts of compounded antimonous oxide, 20-30 parts of a glass fiber, 0-10 parts of a filler, 2-8 parts of a flexibilizer, 0.1-1 part of antioxidant, 0.1-1 part of a lubricating agent and 0.1-1 part of other auxiliary. According to the PA6 composite material prepared by the invention, GWIT can reach 850 DEG C, and CTI can reach 425V at most; the PA6 composite material is high in processing performance, high in mechanical performance, and can meet the requirements of the field of electric products such as shutdown switches, temperature control switches, wiring terminals and the like.

Description

technical field [0001] The invention relates to a high glow wire and high CTI reinforced flame retardant PA6 composite material, in particular to a high glow wire high CTI reinforced flame retardant PA6 composite material which can be used in the fields of circuit breakers, temperature control switches and other electronic appliances and a preparation method thereof. Background technique [0002] PA6 is a translucent or opaque milky white semi-crystalline polymer, and it is one of the varieties with the largest output and widest application in the polyamide family. It has excellent thermodynamic properties, heat resistance, low friction coefficient, wear resistance, good self-lubrication, oil resistance, weak acid resistance, good electrical insulation and many other advantages. It is widely used in electronic appliances, automobiles, machinery and other fields. With the development of human living standards, various fields have more stringent requirements on the flame retar...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08K13/06C08K9/06C08K3/22C08K7/14C08K3/34C08K3/26C08K3/30C08K7/08C08K5/03
CPCC08L77/02C08K2201/014C08L2201/02C08L2203/20C08L2205/035
Inventor 陈哲张志丹费建新李小吉
Owner NANTONG DONGFANG PLASTIC CO LTD
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