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Preparation method of high-performance polyphenylene oxide/graphene nano composite material

A nanocomposite material and composite material technology, applied in the field of polyphenylene ether/graphene nanocomposite material preparation, can solve the problems of limited research and application, strong van der Waals force, easy agglomeration, etc., to achieve enhanced interfacial bonding and enhanced dispersion , the effect of excellent mechanical properties

Active Publication Date: 2016-11-16
WUXI JIAHONG PLASTICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Graphene with a complete structure is composed of benzene rings, with high chemical stability, inert surface, and weak interaction with other media; and there is strong van der Waals force between graphene sheets, which is easy to agglomerate, which greatly limits its research and application; how to use efficient A simple and easy-to-implement method realizes good dispersion of graphene in the PPO matrix and improves its processing performance, so as to facilitate product molding by conventional extrusion, injection molding, pressing and other melt compounding processing methods. It is a good way to prepare high-performance PPO / Graphene nanocomposites and the key to realize their industrial application

Method used

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  • Preparation method of high-performance polyphenylene oxide/graphene nano composite material
  • Preparation method of high-performance polyphenylene oxide/graphene nano composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Disperse 10g of graphene oxide in 1000g of deionized water, add 5g of vinyltriethoxysilane and stir evenly at room temperature, use ultrasonic dispersion for 30min, the ultrasonic power is 2000w, the frequency is 20000HZ, and the ultrasonic temperature is 80°C; then at 70°C Add 2g of sodium lauryl sulfate, stir to dissolve, then add 100g of styrene, pass nitrogen to remove oxygen for 30 minutes, and make it fully emulsified; add 1g of ammonium cerium nitrate, stir well, and react for 4h; continue to add 50g of hydrazine hydrate, at 80 Reduction reaction in oil bath at ℃ for 8h, filter the product, wash with distilled water, dry at 90℃ for 8h to constant weight, and pulverize to obtain polystyrene / graphene nanocomposite powder;

[0022] Add PPO 1Kg and tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester 5g, polystyrene / graphene nanocomposite powder 100g and add in high-speed mixer and mix, then Use a twin-screw extruder to melt and knead...

Embodiment 2

[0024] Disperse 50g of graphene oxide in 7000g of deionized water, add 100g of vinyl-tris(β-methoxyethoxy)silane and stir evenly at room temperature, use ultrasonic dispersion for 100min, ultrasonic power is 3000w, frequency is 40000HZ, ultrasonic temperature at 60°C; then add 4g of sodium dodecylsulfonate at 80°C, stir to dissolve, then add 300g of styrene, pass nitrogen to remove oxygen for 30 minutes, and make it fully emulsified; add 1.2g of potassium persulfate, stir evenly, and react 6h; continue to add 500g of sodium borohydride, reduce in an oil bath at 100°C for 6h, filter the product, wash with distilled water, dry at 90°C for 8h to constant weight, and pulverize to obtain polystyrene / graphene nanocomposite powder;

[0025] PPO 1Kg and β-(4-hydroxyl-3,5-di-tert-butylphenyl) octadecyl propionate 10g, polystyrene / graphene nanocomposite powder 350g are added in the high-speed mixer and mixed, and then The twin-screw extruder melts and kneads, extrudes and granulates, th...

Embodiment 3

[0027] Disperse 30g of graphene oxide in 5000g of deionized water, add 30g of γ-propylmethacrylatetrimethoxysilane and stir evenly at room temperature, and disperse by ultrasonic wave for 200min, with ultrasonic power of 800w, frequency of 60000HZ, and ultrasonic temperature of 50°C; Then add 3g of sodium dodecylbenzenesulfonate at 85°C, stir to dissolve, then add 200g of styrene, pass nitrogen to remove oxygen for 30 minutes, and make it fully emulsified; add 0.8g of ammonium persulfate, stir evenly, and react for 8h; then Add 200g of vitamin C, perform reduction reaction in an oil bath at 60°C for 4h, filter the product, wash with distilled water, dry at 90°C for 8h to constant weight, and pulverize to obtain polystyrene / graphene nanocomposite powder;

[0028]Add 1Kg of PPO, 3g of N,N'-bis-[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hexamethylenediamine, and 230g of polystyrene / graphene nanocomposite powder Mix in a high-speed mixer, then melt and knead with a twin-screw...

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Abstract

The invention discloses a high-performance polyphenylene oxide (PPO) / graphene nano composite material and a preparation method thereof. The preparation method is characterized by comprising the following steps: dispersing 0.1 to 10 parts of graphene oxide into 100 to 1000 parts of de-ionized water; adding 0.1 to 10 parts of a silane coupling agent containing an ethylenic bond and stirring uniformly at a room temperature; ultrasonically dispersing for 10min to 200min, wherein the ultrasonic power is 100w to 5000w, the frequency is 10000HZ to 100000HZ and the ultrasonic temperature is 40 DEG C to 100 DEG C; adding 0.05 to 3 parts of an emulsifier at 40 DEG C to 90 DEG C and stirring to dissolve the emulsifier; then adding 5 to 50 parts of styrene and introducing nitrogen to remove oxygen for 30min, so as to emulsify the styrene sufficiently; adding 0.05 to 3 parts of an initiating agent, uniformly stirring and reacting for 4h to 8h; continually adding 0.01 to 100 parts of a reducing agent and carrying out a reduction reaction in an oil bath at 50 DEG C to 100 DEG C for 2h to 10h; filtering a product and washing the product with distilled water; drying at 90 DEG C until the weight is constant; crushing to obtain polyphenylene oxide / graphene nano composite powder; furthermore, adding 100 parts of PPO, 0.05 to 2 parts of an antioxygen and 5 to 50 parts of the polyphenylene oxide / graphene nano composite powder into a high-speed mixer and mixing; fusing and mixing by adopting a double-screw extruder; extruding and granulating under the conditions that the rotary speed of screws is 50rpm to 200rpm and the temperature of a charging barrel is 270 DEG C to 340 DEG C, so as to obtain the PPO / graphene nano composite material.

Description

technical field [0001] The invention relates to a preparation method of a polyphenylene ether / graphene nanocomposite material, belonging to the field of polymer material processing. Background technique [0002] Polyphenylene ether (PPO) is a thermoplastic resin developed by General Electric Company in the mid-1960s. It is one of the five general-purpose engineering plastics. It has excellent physical and mechanical properties, heat resistance and electrical insulation, and creep resistance at high temperatures. The property is the best among all thermoplastic engineering plastics, and has excellent acid resistance, alkali resistance, chemical resistance, excellent hydrolysis stability, small molding shrinkage rate and thermal expansion coefficient, good dimensional stability, and the product can be used repeatedly in high-pressure steam Stable performance. Therefore, PPO has been widely used in electronic appliances, automobiles and industrial machinery. However, PPO prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08L25/06C08K9/06C08K3/04C08F112/08
CPCC08F112/08C08K2201/011C08L71/12C08L25/06C08K9/06C08K3/04
Inventor 叶林顾友强赵晓文胡海生
Owner WUXI JIAHONG PLASTICS TECH
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