High-strength PPO/PA66 alloy material and preparation method thereof

An alloy material and high-strength technology, applied in the field of high-strength PPO/PA66 alloy material and its preparation, can solve the problems of heat resistance and low mechanical strength, decreased material dimensional stability, insufficient heat resistance, etc., and achieve excellent dimensional stability Sex, simple preparation process, easy to spray effect

Active Publication Date: 2010-11-03
徐东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the PPO / PA66 alloys sold on the market are non-filled PPO / PA66 alloys, which have good warpage resistance, but have low heat resistance and low mechanical strength. They are used to manufacture parts close to the engine and stressed structural parts. Not enough, not enough heat resistance defects
At present, the problem of heat resistance and strength is mainly solved by using glass fiber reinforced PPO / PA66 alloy. After glass fiber reinforced PPO / PA66 alloy, the heat resistance and mechanical strength of the material are greatly increased, but the dimensional stability of the material is greatly reduced. , the part is seriously warped and deformed after forming, which affects the appearance and assembly of the part

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] PPO is 27% by weight (the following are weight percentages), PA6630%, PPO-g-MAH 6%, SEBS-g-MAH 6%, weighed and poured into the mixer, stirred evenly, and then pressed the glass micro Beads 5%, mica powder 15%, 1010 / 1680.2 / 0.2%, other additives 0.6%, weighed, poured into a blender and stirred evenly. The mixed material is put into the hopper of the twin-screw extruder, and 10% of the glass fiber is fed into the extruder through side feeding, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 230°C; zone 2: 250°C; zone 3: 270°C; zone 4: 260°C; head: 260°C; residence time 2-3min. The pressure is 14MPa.

Embodiment 2

[0034] PPO is 27% by weight (the following are all weight ratios), PA6630%, PPO-g-MAH6%, SEBS-g-MAH 6%, weighed and poured into the stirrer, stirred evenly, and then pressed glass beads 10% %, mica powder 10%, 1010 / 1680.2 / 0.2%, other additives 0.6%, weighed, poured into a blender and stirred evenly. The mixed material is put into the hopper of the twin-screw extruder, and 10% of the glass fiber is fed into the extruder through side feeding, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 230°C; zone 2: 250°C; zone 3: 270°C; zone 4: 260°C; head: 260°C; residence time 2-3min. The pressure is 14MPa.

Embodiment 3

[0036]PPO is 27% by weight (the following are all weight ratios), PA6630%, PPO-g-MAH6%, SEBS-g-MAH 6%, weighed and poured into the mixer, stirred evenly, and then pressed glass beads 15 %, mica powder 5%, 1010 / 1680.2 / 0.2%, other additives 0.6%, weighed, poured into a blender and stirred evenly. The mixed material is put into the hopper of the twin-screw extruder, and 10% of the glass fiber is fed into the extruder through side feeding, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 230°C; zone 2: 250°C; zone 3: 270°C; zone 4: 260°C; head: 260°C; residence time 2-3min. The pressure is 14MPa.

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Abstract

The invention discloses a high-strength PPO/PA66 alloy material and a preparation method thereof. The high-strength PPO/PA66 alloy material is prepared from the following components in percentage by weight: 20-40% of polyphenyl ether resin, 20-40% of nylon 66 resin, 5-10% of compatilizer, 5-10% of toughener, 5-15% of glass fiber, 5-15% of glass microballoon, 5-15% of mica powder, 0.2-0.4% of antioxidant and 0.5-1% of other assistants. By compounding the glass fiber, the glass microballoon and the mica powder to enhance PPO/PA66 alloy, the prepared alloy material not only has excellent combination properties including high strength, good heat resistance and easy spraying, but also has excellent dimensional stability and low warpage rate. Therefore, the invention is suitable for molding large structural parts and heated components.

Description

[technical field] [0001] The invention relates to the technical field of polymer materials, in particular to a high-strength PPO / PA66 alloy material and a preparation method thereof. [Background technique] [0002] PPO (polyphenylene ether) resin and PA66 (nylon 66) resin are one of the widely used engineering plastics. PPO is an amorphous material with high heat resistance, stable size, excellent electrical insulation and creep resistance, but its Poor processing fluidity, not resistant to organic solvents and poor compatibility with glass fiber. PA66 is a crystalline material with good fluidity, resistance to organic solvents, and good compatibility with glass fiber, but it is easy to absorb water, poor in dimensional stability, and poor in heat resistance. Difference. [0003] With the rapid development of the automobile industry, replacing steel with plastic has become the trend and direction of automobile material development. PPO / PA66 alloy is widely used in automobil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08L77/06C08L51/08C08L51/06C08K13/04C08K7/20C08K7/14C08K3/34B29B9/06B29C47/92B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C48/9185B29C2948/92514B29C2948/92561B29C2948/92895B29C2948/92904
Inventor 徐东贺永周兵
Owner 徐东
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