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A creep-resistant fiber exposed metal fiber modified polyphenylene ether composite material and its preparation method

A metal fiber and composite material technology, which is applied in the field of fiber-exposed metal fiber modified polyphenylene ether composite material and its preparation field, can solve the problems of loss of electromagnetic shielding function of composite material, product waste, open circuit, etc., and can provide products Qualification rate, guaranteeing safety and durability, and improving creep resistance

Active Publication Date: 2021-09-10
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional direct twin-screw blending extrusion processing method mainly relies on pressure to make the fibers inside the product contact each other because the fibers are less surfaced on the surface of the product. Once the fibers are unevenly distributed and agglomerated inside the product, an open circuit will be formed. , the electromagnetic shielding function of the composite material is lost, resulting in product waste

Method used

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  • A creep-resistant fiber exposed metal fiber modified polyphenylene ether composite material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Mix 50 parts of Bluestar PPO-LXR040, 17 parts of HIPS-514, 2 parts of M511 and 1 part of processing aid (0.3 parts of heat stabilizer, 0.2 parts of lubricant) through a high-speed mixer, and send the above mixture into a twin-screw extruder In the machine, it is fully melted and mixed under the conveying and shearing action of the screw, and then extruded through the head die, drawn, cooled and pelletized.

[0042] The temperature of the first zone of the twin-screw extruder is controlled between 245°C, the temperature of the screws in the second zone and each section of the machine head is controlled between 250 and 300°C, and the screw speed is 300r / min.

[0043] Then feed the particles made by the twin-screw into the single-screw extruder, and at the same time, add 30 parts of stainless steel fiber from the side feeding method near the third of the machine head, and the mixture is extruded, drawn, cooled, and pelletized .

[0044] The screw temperature in the first ...

Embodiment 2

[0051] Mix 55 parts of Bluestar PPO-LXR040, 18 parts of HIPS-514, 5 parts of M511 and 2 parts of processing aids (0.3 parts of heat stabilizer, 0.2 parts of lubricant) through a high-speed mixer, and send the above mixture into a twin-screw extruder In the machine, it is fully melted and mixed under the conveying and shearing action of the screw, and then extruded through the head die, drawn, cooled and pelletized.

[0052] The temperature of the first zone of the twin-screw extruder is controlled between 245°C, the temperature of the screws in the second zone and each section of the machine head is controlled between 250 and 300°C, and the screw speed is 300r / min.

[0053] Then feed the particles made by the twin-screw into the single-screw extruder, and at the same time, add 20 parts of stainless steel fiber by side feeding from the one-third of the distance from the machine head. The mixture is extruded, drawn, cooled, and pelletized. .

[0054] The screw temperature in th...

Embodiment 3

[0061] Mix 58 parts of Bluestar PPO-LXR040, 20 parts of HIPS-514, 10 parts of M511 and 2 parts of processing aids (0.3 parts of heat stabilizer, 0.2 parts of lubricant) through a high-speed mixer, and send the above mixture into a twin-screw extruder In the machine, it is fully melted and mixed under the conveying and shearing action of the screw, and then extruded through the head die, drawn, cooled and pelletized.

[0062] The temperature of the first zone of the twin-screw extruder is controlled between 245°C, the temperature of the screws in the second zone and each section of the machine head is controlled between 250 and 300°C, and the screw speed is 300r / min.

[0063] Then feed the granules made by the twin-screw into the single-screw extruder, and at the same time add 10 parts of stainless steel fiber by side feeding from one-third of the distance from the machine head, and the mixture is extruded, drawn, cooled, and pelletized .

[0064] The screw temperature in the ...

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Abstract

The invention belongs to the technical field of polymer composite materials, and in particular relates to a creep-resistant fiber-exposed metal fiber modified polyphenylene ether composite material and a preparation method thereof. The modified material is made of the following components by weight: 50-58 parts of polyphenylene ether, 17-20 parts of polystyrene, 2-10 parts of compatibilizer, 10-30 parts of metal fiber and 1-2 parts of processing aid Parts, first mix the granular and powdery materials evenly, then send them to the twin-screw for mixing and extrusion, cut into particles, then send the prepared particles into the single screw, add metal fibers through side feeding, mix and extrude, cut into particle. The material fiber prepared by the method has large exposed area, low material surface resistivity, and excellent creep resistance, and can be used for a long time in the fields of antistatic, electromagnetic shielding and the like.

Description

[0001] (1) Technical field [0002] The invention belongs to the technical field of polymer composite materials, and in particular relates to a fiber-exposed metal fiber modified polyphenylene ether composite material with excellent creep resistance and a preparation method thereof. [0003] (2) Background technology [0004] At present, polymer composite materials with functions such as electromagnetic shielding and antistatic are developing rapidly, especially the substitution of conductive polymer materials for metal materials is a direction that is being vigorously developed. [0005] Most of the existing technologies are directly blended with acrylonitrile-butadiene-styrene and polycarbonate polymer materials by adding carbon fibers, metal fibers, etc., and then extruding with twin-screws, melting, extruding, and granulating to form a composite Conductivity within the material is achieved. [0006] The original metal materials replaced by polymer materials with conductive...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L71/12C08L51/04C08K7/04B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08K2201/003C08L71/12C08L2205/025C08L2205/03C08L2205/035C08L2205/08C08L2207/53C08L51/04C08K7/04
Inventor 杨桂生高军李术杨莺何璟
Owner HEFEI GENIUS NEW MATERIALS
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