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High-thermal-conductivity and antistatic PC/ABS alloy and preparation method thereof

An antistatic and high thermal conductivity technology, which is applied in the field of PC/ABS alloy and its preparation, can solve the problems of high antistatic property and achieve the effects of high antistatic property, high normal temperature and high thermal conductivity

Active Publication Date: 2015-08-12
SHANGHAI ZHONGLEI NEW MATERIAL SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, compared with the present invention, this prior art has unsolvable technical problems including that the alloy has high thermal conductivity and high antistatic property at the same time

Method used

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  • High-thermal-conductivity and antistatic PC/ABS alloy and preparation method thereof
  • High-thermal-conductivity and antistatic PC/ABS alloy and preparation method thereof
  • High-thermal-conductivity and antistatic PC/ABS alloy and preparation method thereof

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Experimental program
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Embodiment

[0024] This embodiment includes the following steps:

[0025] Step 1, carboxylation treatment of multi-walled carbon nanotubes

[0026] 1.1) Add 10g of MWCNTs, 50mL of nitric acid, and 150mL of sulfuric acid into a 1000mL flask with a condenser, and stir vigorously;

[0027] 1.2) Immerse the flask in an ultrasonic bath (59kHz) for 20 minutes to make it well dispersed; then, heat the oil bath and react for 150 minutes, while the heating temperature gradually rises from 90°C to 120°C. During this period, the thick brown gas generated passes through the condenser. Collect using plastic catheters and treat with NaOH solution;

[0028] 1.3) After the reaction is finished, after cooling to room temperature, the reaction mixture is diluted with 500mL deionized water, separated by a centrifuge to remove most of the acid, and the solid is redispersed in 500mL water, vacuum filtered through a microporous membrane, and rinsed several times until the pH value is close to 7;

[0029] 1....

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Abstract

The invention relates to high-thermal-conductivity and antistatic PC / ABS alloy and a preparation method thereof. The method includes: PC, ABS, PBT-PTMG and auxiliaries are evenly mixed and added into a double-screw extruder, nano BN, nano AlN and MWCNTs-BN-AlN subjected to rare earth ion surface modification treatment after low-speed mixing to perform melt blending, and extruding is then performed to obtain the PC / ABS alloy. Due to the fact that the nano BN, nano AlN and MWCNTs-BN-AlN which are subjected to rare earth ion surface modification treatment and have a synergy effect are added, alloy thermal conductivity is increased, and the antistatic performance of the alloy is increased. Due to the fact that the PBT-PTMG segmented copolymer is added, the alloy is high in normal temperature and low temperature impact toughness.

Description

technical field [0001] The present invention relates to a technology in the field of new polymer materials, specifically a technology with a thermal conductivity of 4.26W / m·K and a surface resistance of 2.1*10 8 PC / ABS alloy of Ω and preparation method thereof. Background technique [0002] Polycarbonate (PC) is an engineering plastic with excellent performance. It has good comprehensive properties, high mechanical strength, good impact toughness, stable size, good heat resistance, and good electrical insulation; acrylonitrile-butadiene-benzene Ethylene copolymer (ABS), which has excellent impact resistance, good low temperature performance and chemical resistance, good dimensional stability, good fluidity, and easy processing. PC / ABS alloy products not only retain the mechanical strength, toughness, heat resistance, and dimensional stability of PC resin, but also have the excellent low-temperature impact resistance and processing fluidity of ABS. Ideal materials for equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08K13/06C08K9/02C08K9/04C08K9/00C08K7/24C08K3/38C08K3/28B29C47/92B29C48/92
CPCB29C48/92B29C2948/9259B29C2948/92704C08K2201/003C08K2201/004C08K2201/011C08L69/00C08L2201/04C08L2205/03C08L55/02C08L67/02C08K13/06C08K9/02C08K9/04C08K7/24C08K2003/385C08K2003/282C08K5/1345
Inventor 刘春艳何晓利曲光林珊珊孙佳闯
Owner SHANGHAI ZHONGLEI NEW MATERIAL SCI CO LTD