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Conductive polyphenylene oxide resin polymerization method

A technology of polyphenylene ether resin and polymerization method, which is applied in the production field of conductive polyphenylene ether resin, can solve problems such as reduced mechanical properties, and achieve the effects of good dispersibility, cost reduction and simple process

Inactive Publication Date: 2013-12-11
CHINA NAT BLUESTAR (GRP) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] CN200610037358.7 discloses an impact-resistant conductive polyphenylene ether compound and its preparation method, which is prepared by high-speed pre-mixing and dispersing one-time extrusion process, which solves the problems of reduced mechanical properties in conductive polyphenylene ether resin, and is suitable for Packaging and electrostatic spraying parts for electronic appliances

Method used

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  • Conductive polyphenylene oxide resin polymerization method
  • Conductive polyphenylene oxide resin polymerization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 As shown, 2,6-dimethylphenol 150g, catalyst (di-n-butylamine 2g, dimethyl-n-butylamine 8g, CuCl 2 0.5g, the formed complex) and solvent (methanol 200g, toluene 1100g) add reactor 1 through feed line 5, mix evenly under the effect of stirring, pass into by gas feed line 7 at the bottom of reactor 1 Oxygen (500ml / min), polymerization temperature 35 ° C, polymerization time 30 minutes, determine the degree of polymerization by viscosity measurement, to obtain a polyphenylene ether solution with a degree of polymerization of 75%, 5g of conductive carbon black is added to reactor 1 through feed line 6 , continue to react for 20 minutes.

[0041] The reacted material enters the product precipitation tank 2, and 800 g of poor solvent methanol is added to the precipitation tank through the material feeding line 8 to precipitate particles containing conductive polyphenylene ether products. The mixed liquid is subjected to solid-liquid separation in the separa...

Embodiment 2

[0043] Such as figure 1 As shown, 2,6-dimethylphenol 150g, catalyst (di-n-butylamine 2g, dimethyl-n-butylamine 8g, CuCl 2 0.5g, the formed complex) and solvent (methanol 200g, toluene 1100g) add reactor 1 through feed line 5, mix evenly under the effect of stirring, pass into by gas feed line 7 at the bottom of reactor 1 Oxygen (500ml / min), polymerization temperature 35 ° C, polymerization time 60 minutes, determine the degree of polymerization by viscosity measurement, obtain a polyphenylene ether solution with a degree of polymerization of 95%, add 15 g of conductive carbon black to reactor 1 through feed line 6 , continue to react for 20 minutes.

[0044] The reacted material enters the product precipitation tank 2, and 800 g of poor solvent methanol is added to the precipitation tank through the material feeding line 8 to precipitate the particles of the product containing polyphenylene ether. The mixed liquid is subjected to solid-liquid separation in the separation de...

Embodiment 3

[0046] Such as figure 1As shown, 150g of 2,6-dimethylphenol, catalyst (di-n-butylamine 2g, dimethyl-n-butylamine 8g, CuCl 0.5g, the formed complex) and solvent (methanol 300g, toluene 900g) Feed into reactor 1 through feed line 5, mix evenly under stirring, feed oxygen (500ml / min) through gas feed line 7 at the bottom of reactor 1, polymerize at 40°C, polymerize for 30 minutes, pass viscosity The degree of polymerization was measured and determined to obtain a polyphenylene ether solution with a degree of polymerization of 90%. 0.015 g of conductive carbon fiber was added to reactor 1 through the feed line 6, and the reaction was continued for 20 minutes.

[0047] The reacted material enters the product precipitation tank 2, and 900 g of poor solvent methanol is added to the precipitation tank through the material feeding line 8 to precipitate the particles of the product containing polyphenylene ether. The mixed liquid is subjected to solid-liquid separation in the separatio...

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Abstract

The invention provides a conductive polyphenylene oxide resin polymerization method. Free phenol and oxygen carry out polymerization reaction in a solvent in the presence of a catalyst, a conductive material is added into a reaction mixture, and the addition amount of the conductive material is 0.01%-10% of the gross mass of free phenol. After being uniformly mixed, the reaction mixture and the conductive material continuously react to reach the required product viscosity. Granules containing polyphenylene oxide products are separated out by a poor solvent added with polyphenylene oxide, and the separated granules are filtered and dried to obtain polyphenylene oxide resin. The polyphenylene oxide resin has conductive performance. According to the conductive polyphenylene oxide resin polymerization method disclosed by the invention, the conductive material is directly introduced in the polyphenylene oxide polymerization process, so that the conductive material is uniformly dispersed in the polyphenylene oxide products, the dispersity of the conductive material is favorable, the process is simple and the cost is lowered.

Description

technical field [0001] The invention relates to a production method of conductive polyphenylene ether resin. This conductive resin can be widely used in various fields such as electronic parts, electric, office automation machine parts, having sufficient electrical conductivity for electrostatic coating. Background technique [0002] Polyphenylene ethers or polyphenylene oxides, referred to as PPE or PPO, has excellent chemical, physical and electrochemical properties. At the same time, polyphenylene ether and polypropylene, polystyrene, polycarbonate, polyamide, polyester, etc. Blending modification produces a blend with chemical resistance, high temperature resistance, high strength and high fluidity, which can be widely used in electrical, automotive, aerospace and other industrial material fields. [0003] U.S. Patent No. 5,977,240 discloses a technology that mixes polyphenylene ether and polyamide, and then adds carbon black to obtain a resin composition with excellent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/44C08K3/04C08K7/06C08K7/00C08K3/08C08K3/00
Inventor 刘宇辉王海军张洪波李瑞亢胡衍平
Owner CHINA NAT BLUESTAR (GRP) CO LTD