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Polymer/carbon nanotube/metal composite fiber and preparation method thereof

A carbon nanotube and metal composite technology, which is applied in the field of synthetic fibers, can solve the problems of increasing production costs and increasing the proportion of metal in the core layer, and achieve the effects of saving production costs, improving processability and reducing costs

Active Publication Date: 2014-10-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology requires a special composite spinning machine, and the proportion of metal in the core layer of the fiber is increased. Although the low resistivity of the fiber is guaranteed, a large amount of metal needs to be added, which increases the production cost.

Method used

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  • Polymer/carbon nanotube/metal composite fiber and preparation method thereof
  • Polymer/carbon nanotube/metal composite fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The polymer in this example is polypropylene (Sinopec Ningbo Zhenhai Refining & Chemical Co., Ltd., grade Z30S, melting point 167°C), the metal alloy is tin-bismuth alloy (Beijing Sanhe Dingxin High-tech Development Co., Ltd., melting point 138°C), carbon nano Tube (Beijing Tiannai Technology, brand FT-9000, average diameter 11nm, average length 10μm, multi-walled carbon nanotubes), the volume ratio of tin-bismuth alloy to polypropylene is 0.5:100, the weight ratio of carbon nanotubes to polypropylene For 2:100, add an appropriate amount of antioxidant 1010 (produced by Ciba-Geigy, Switzerland), antioxidant 168 (produced by Ciba-Geigy, Switzerland) and zinc stearate (commercially available); wherein polypropylene is 100 parts by weight Count, antioxidant 1010 is 0.5 part, antioxidant 168 is 0.5 part, zinc stearate is 1 part.

[0038] Mix uniformly in a high-speed mixer according to the above-mentioned raw materials and proportions of the polymer, carbon nanotube and met...

Embodiment 2

[0041] Except that the volume ratio of the metal alloy to the polymer was 1:100, the rest were the same as in Example 1. The obtained polymer / carbon nanotube / metal composite fiber was tested in various tests, and the test results are listed in Table 1. Observed with a scanning microscope, the diameter of short metal fibers in the composite fiber is 2.15 μm or less. The length is greater than or equal to 7.6 μm. Filament breakage rarely occurs during the spinning process, and the fiber surface obtained is smooth.

Embodiment 3

[0043] Except that the volume ratio of the metal alloy to the polymer was 2:100, the rest were the same as in Example 1. The obtained polymer / carbon nanotube / metal composite fiber was subjected to various tests, and the test results are listed in Table 1 and Table 2. Observed with an optical microscope, the diameter of short metal fibers in the composite fiber was 3.46 μm or less. The length is greater than or equal to 9 μm. Filament breakage rarely occurs during the spinning process, and the fiber surface obtained is smooth.

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Abstract

The invention relates to polymer / carbon nanotube / metal composite fiber. The composite fiber comprises polymer fiber containing metal short fiber and carbon nanotube, the metal short fiber is dispersed in the polymer fiber as a dispersion phase and is in parallel distribution along the shaft of the polymer fiber; the carbon nanotube is dispersed in the polymer fiber and distributed among the metal short fiber; a metal is a low-melting-point metal, is at least one selected from single-composition metals and metal alloy, and has the melting point between 20 DEG C to 480 DEG C and lower than a polymer processing temperature; the volume ratio of the metal short fiber to the polymer fiber is 0.01:100-20:100; and the weight ratio of the carbon nanotube to the polymer is 0.1:100-30:100. By using the composite fiber, the volume resistivity is reduced, the wire fracture rate is reduced, and the surface of the fiber is smooth. The preparation method is simple, relatively low in production cost and easy for industrialized batch production.

Description

technical field [0001] The invention relates to the field of synthetic fibers, and furthermore, the invention relates to a polymer / carbon nanotube / metal composite fiber and a preparation method thereof. Background technique, [0002] Compared with natural fibers, synthetic fibers have the characteristics of low price, low density and low moisture absorption rate, and are widely used in textiles and clothing, woven bags and other fields in daily production and life. However, synthetic fibers have good electrical insulation properties and high resistivity, and are prone to static electricity during use, which will bring harm to industrial production and people's lives. And with the development of high technology, static electricity and electrostatic adsorption of dust are one of the direct causes of modern electronic equipment failure, circuit short circuit, signal loss, bit error, and low yield. In petroleum, chemical industry, precision machinery, coal mine, food, medicine ...

Claims

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Application Information

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IPC IPC(8): D01F6/46D01F6/90D01F6/92D01F1/10D01D5/12
Inventor 乔金樑朱燚磊张晓红王良诗蔡传伦戚桂村张红彬宋志海赖金梅李秉海王亚高建明陈刚蒋海斌
Owner CHINA PETROLEUM & CHEM CORP
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