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Low-absorption high-ductility polyphenylene ether and nylon 6 compound and preparation method thereof

A technology of polyphenylene ether and high toughness, applied in the field of engineering plastics, can solve the problems of high water absorption and achieve the effect of low water absorption and high toughness

Inactive Publication Date: 2008-07-30
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Because the amide group in the PA6 molecular chain is polar and can form hydrogen bonds, it has excellent mechanical properties, thermal properties, cold resistance and creep resistance; it is the toughest engineering plastic, with good processing fluidity and easy Processing and molding; but the disadvantage is that the water absorption rate is high. With the increase of temperature and humidity, the water absorption rate continues to rise, and the dimensional stability also changes continuously.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The brand produced by BASF is 50 kilograms of PA6 of B3, 10 kilograms of composite elastomer compatibilizing and toughening agent made by KINGFA, phenolic antioxidant N, N'-1,6-hexanediyl bis(3,5-di (1,1-Dimethylethyl)-4-hydroxyphenylpropionyl, phosphite antioxidant pentaerythritol bis(2,4-di-tert-butylphenyl)phosphite mixed with polysilicone 2 Kilograms are mixed in a mixer with a rotation speed of 700 rpm for 30-50 seconds, and then 100 kilograms of PPE powder produced by Shanxi Ruicheng Foster Chemical Co., Ltd. Among them, the melt extrusion temperature is 220~280°C, and the temperature of each section is: 230±10°C, 240±10°C, 250±10°C, 260±10°C, 270±10°C, 260±10°C, 250±10°C 10°C, 250±10°C, 240±10°C, 240±10°C, the composite of polyphenylene ether and nylon 6 with low water absorption and high toughness of the present invention can be obtained.

[0022] The product of the present invention can be tested by ISO standard. The test samples were injection molded by a CJ...

Embodiment 2

[0037] The grade produced by BASF is 200 kilograms of PA6 of B3, 50 kilograms of composite elastomer compatibilizing and toughening agent made by KINGFA, phenolic antioxidant N, N'-1,6-hexanediyl bis(3,5-di (1,1-Dimethylethyl)-4-hydroxyphenylpropionyl, phosphite antioxidant pentaerythritol bis(2,4-di-tert-butylphenyl)phosphite mixed with polysilicone 2 Kilograms are mixed in a mixer with a rotation speed of 700 rpm for 30-50 seconds, and then 100 kilograms of PPE powder of PPE-LXR045 produced by Shanxi Ruicheng Foster Chemical Co. In the machine, the melt extrusion temperature is 220~280°C, and the temperature of each section is as follows: 230±10°C, 240±10°C, 250±10°C, 260±10°C, 270±10°C, 260±10°C, 250°C ±10°C, 250±10°C, 240±10°C, 240±10°C, the composite of polyphenylene ether and nylon 6 with low water absorption and high toughness of the present invention can be obtained.

[0038] The above-mentioned products are tested, and the results are as follows:

[0039] p...

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PUM

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Abstract

The invention relates to low water absorption and high tenacity polyphenylene ether and nylon 6 compound, which is characterized in that the compound is composed of the following raw materials according to the parts by weight: 100 parts of polyphenylene ether resin, 40-220 parts of nylon PA6, 10-60 parts of compound elastomer bulking and toughening agent, and 1-3 parts of heat stabilizer and processing ingredient. The preparation method comprises the following steps: the compound elastomer bulking and toughening agent self-made from PA6 and KINGFA is mixed with the heat stabilizer and the processing ingredient in the high speed mixer, and then added with PPE powder to be evenly mixed, and then delivered into the combined double screw extruder, the melting extrusion granulation is performed under the temperature of 220-300 DEG C, and then the required low water absorption and high tenacity polyphenylene ether and nylon 6 compound is obtained. The compound has the advantages of low water absorbing and high tenacity.

Description

technical field [0001] The invention relates to a compound of polyphenylene ether and nylon 6 with low water absorption and high toughness and a preparation method thereof, belonging to the technical field of engineering plastics. Background technique [0002] Polyphenylene ether (PPE for short) is obtained by polymerizing 2,6-dimethylphenol through oxidative coupling. It is a high heat-resistant engineering plastic with a melting temperature of 262-267°C, a glass transition temperature of 205°C, an embrittlement temperature of -170°C, and a long-term use temperature of 120°C. Even at a high temperature of 150°C, it is still It has high strength and rigidity, and its heat distortion temperature is as high as 174°C under a load of 1.82MPa, which is superior to thermoplastic engineering plastics such as polycarbonate, polyoxymethylene, nylon and ABS. [0003] The relative density of polyphenylene ether is small, only 1.06. It has no hydrolyzable groups, excellent hydrolysis r...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L71/12B29C47/40B29B9/12
Inventor 吉继亮陆体超苏妤鲍建兵冯德才万勇军张宇朱文殷年伟
Owner SHANGHAI KINGFA SCI & TECH