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Efficient antistatic pc/abs composite material and preparation method thereof

A composite material and antistatic technology, applied in the field of polymers, can solve the problems of difficult dispersion and no effective solution, and achieve the effect of high reactivity, high molecular weight and convenient use

Active Publication Date: 2018-06-22
FINE BLEND POLYMER SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, adding a small amount of carbon nanotubes to the plastic can make the plastic have good antistatic properties; but the carbon material is extremely difficult to disperse due to the surface inertness and the strong Van der Waals force between the sheets.
How to effectively disperse carbon materials in composite materials has become a hot spot in the research of antistatic materials, and there is currently no effective solution for this

Method used

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  • Efficient antistatic pc/abs composite material and preparation method thereof
  • Efficient antistatic pc/abs composite material and preparation method thereof
  • Efficient antistatic pc/abs composite material and preparation method thereof

Examples

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Embodiment 1～4 and comparative example 1～3

[0041] In the described embodiment, the raw materials are weighed according to the following weight percentages:

[0042] Polycarbonate: 40~70%;

[0043] ABS: 5~40%;

[0044] Carbon nanotubes: 0.5-10%;

[0045] ST-AN-GMA terpolymer as compatibilizer: 0.5~5%;

[0046] ST-AN copolymer as dispersant: 5-25%.

[0047] Wherein, the average diameter of the carbon nanotubes <20nm, average length 1-20μm, average number of wall layers <15.

[0048] In the ST-AN-GMA terpolymer, the ST content is 70 wt%, the AN content is 25 wt%, and the GMA content is 5 wt%.

[0049] In the ST-AN copolymer, the number average molecular weight is 10,000 to 30,000, the melt index at 190° C. / 5 kg is 40 to 100 g / 10 min, the ST content is 75 wt%, and the AN content is 25 wt%. The specific components and weight percentages of each example and comparative example are shown in Table 1.

[0050] Use carbon nanotubes, ST-AN-GMA terpolymer as a compatibilizer, and ST-AN copolymer as a dispersant, and mix them uniformly in propo...

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Abstract

The invention provides an efficiency anti-static PC / ABS (Polycarbonate / Acrylonitrile Butadiene Styrene) composite material and a preparation method thereof. The composite material is prepared from the following components in percentage by weight: 40-70 percent of polycarbonate, 5-40 percent of ABS, 0.5-10 percent of antistatic agent, 0.5-5 percent of compatilizer and 5-25 percent of dispersing agent. The preparation method comprises the following steps: firstly, mixing the antistatic agent, the compatilizer and the dispersing agent in the raw materials according to a certain proportion at the room temperature; performing melt extrusion through double screws to obtain antistatic master batch; extruding the composite material according to a certain proportion, extruding through the double screws, and granulating to obtain the efficient anti-static PC / ABS composite material. The composite material prepared by the method has superior antistatic performance, high chemical performance and attractive appearance.

Description

Technical field [0001] The invention belongs to the field of polymers, and specifically relates to a high-efficiency antistatic PC / ABS composite material and a preparation method thereof. Background technique [0002] Plastics generally have good insulation properties, and therefore have been widely used in many fields, such as wire and cable, electronic and electrical, etc. However, with the development of society and the advancement of science and technology, the insulation performance of plastics has become a disadvantage in some areas. The insulation of plastics causes the static charge accumulated on the surface of plastic products to be unable to be released, and then forms a static voltage, which is easy to absorb dust. When the electrostatic voltage reaches a certain level, it will cause electrostatic discharge (ESD) and electric shock. In the electronics industry, various precision instruments and precision electronic components will be damaged or even scrapped due to e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08L25/12C08L25/14C08K7/24C08K3/04
CPCC08K2201/011C08K2201/017C08L55/02C08L69/00C08L2201/04C08L2201/08C08L2205/035C08L2205/08C08L25/12C08L25/14C08K7/24C08K3/04
Inventor 段浩汤俊杰朱从山曹二平史鹏伟
Owner FINE BLEND POLYMER SHANGHAI CO LTD
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