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Polymer/metal composite fibers and preparation method thereof

A metal composite and metal short fiber technology, applied in the direction of conductive/antistatic filament manufacturing, stretch spinning, single-component polyester rayon, etc., can solve the problem of no increase in elongation at break and the specific gravity of the core metal Increased fiber density and other problems, to achieve the effects of wide applicability, improved processability, and increased production efficiency

Active Publication Date: 2014-05-14
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 the core metal as the fiber increases. Although the low resistivity of the composite fiber is guaranteed, the fiber density increases, and the elongation at break does not increase, or even decreases.

Method used

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  • Polymer/metal composite fibers and preparation method thereof
  • Polymer/metal composite fibers and preparation method thereof
  • Polymer/metal composite fibers and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] 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 (melting point 138°C), and the volume ratio of tin-bismuth alloy to polypropylene is 2:100 , adding an appropriate amount of antioxidant 1010 (produced by Ciba-Geigy, Switzerland), antioxidant 168 (produced by Ciba-Geigy, Switzerland) and zinc stearate (commercially available); wherein the polypropylene is 100 parts by weight, the anti-oxidant Oxygen 1010 is 0.5 part, antioxidant 168 is 0.5 part, and zinc stearate is 1 part.

[0043] Mix uniformly in a high-speed mixer according to the above-mentioned raw materials and proportions of the polymer and the metal alloy. After that, extrude and granulate with the PolymLab twin-screw extruder of German HAAKE company. The temperature of each section of the extruder is: 190°C, 200°C, 210°C, 210°C, 210°C, 200°C (head temperature). The pellets were put into a c...

Embodiment 2

[0046] Except that the volume ratio of the metal alloy to the polymer was 0.5:100, the rest were the same as in Example 1. The obtained polymer / metal composite fiber was subjected to various tests, and the test results are listed in Table 1. Observed by an optical microscope, the diameter of short metal fibers in the composite fiber is less than 1.04 μm, and the length is greater than or equal to 4.12 μm.

Embodiment 3

[0048] 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 / metal composite fiber was subjected to various tests, and the test results are listed in Table 1. Observed by an optical microscope, the diameter of short metal fibers in the composite fiber is less than 2.15 μm, and the length is greater than or equal to 4.94 μm.

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Abstract

The present invention provides polymer / metal composite fibers and a preparation method thereof. The composite fibers comprise polymer fibers containing metal staple fibers, wherein the metal staple fibers are adopted as the dispersed phase and are distributed in the polymer fibers in a parallel manner along the polymer fiber axis, the polymer is a thermoplastic resin, the metal is at least one selected from a single-component metal and a metal alloy, the melting point of the metal is 20-480 DEG C and is lower than the melting point of the polymer, a volume ratio of the metal staple fibers to the polymer fibers is 0.01:100-20:100, and the volume resistivity of the composite fibers is less than or equal to 1*10<11>[omega].CM. According to the present invention, the fibers are obtained by carrying out melt blending, spinning and heating stretching on the metal and the polymer; the antistatic property, the breaking strength, and the elongation at break of the composite fibers are concurrently increased, the size is reduced, the dyeability is good, and the antistatic property is lasting; and the preparation method is simple and is easily subjected to industrialized mass production.

Description

technical field [0001] The invention relates to the field of synthetic fibers, and furthermore, the invention relates to a polymer / metal composite fiber and a preparation method thereof. Background technique [0002] 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, the resistivity of synthetic fibers is high, and it is easy to generate static electricity during use, which will bring harm to industrial production and people's lives. And with the development of high technology, static electricity is one of the direct causes of modern electronic equipment failure, signal loss, and bit errors. In petroleum, chemical industry, precision machinery, coal mine, food, medicine and other industries, there are special requirements for electrostatic protection. Therefore, the antistatic fiber with excellent performance ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01F6/90D01F6/92D01F1/09D01D5/12
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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