Unlock instant, AI-driven research and patent intelligence for your innovation.

A preparation method of polymer composite fiber containing ultrafine metal fiber and polymer composite fiber prepared therefrom

A composite fiber and metal fiber technology, which is applied in the field of polymer composite fiber preparation, can solve the problems of increasing the proportion of metal in the core layer and increasing production costs, and achieve the effects of low equipment cost, improved production efficiency, and simple equipment

Active Publication Date: 2018-11-30
CHINA PETROLEUM & CHEM CORP +1
View PDF20 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A preparation method of polymer composite fiber containing ultrafine metal fiber and polymer composite fiber prepared therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Melt-processable polyvinyl alcohol (Kuraray Company, brand CP-1000, melting point 174°C) and tin-lead-silver alloy powder (melting point 180°C, particle size 24-45 μm, Beijing Sanhe Dingxin High-tech Development Co., Ltd. ) mixed uniformly in a high-speed mixer; the volume fraction of the tin-lead-silver alloy is 5%vol, and then melted and blended by the PolymLab twin-screw extruder of the German HAAKE company. The temperature of each section of the extruder is 140°C, 170°C, 170°C, 175°C, 175°C, 180°C (head die temperature). After the blend melt is extruded from the die, it is directly stretched at a high speed with a draw ratio of 310 and wound up to obtain polyvinyl alcohol / metal composite fibers. According to the observation of Nano-CT photographs, the ultrafine metal fibers contained in the obtained polymer composite fibers have a diameter of 0.5-10 μm and a length of 100-3000 μm.

Embodiment 2

[0030] Except that the die temperature of the twin-screw extruder was set at 185° C., the rest were the same as in Example 1. According to the observation of Nano-CT photographs, the ultrafine metal fibers contained in the obtained polymer composite fibers have a diameter of 0.5-10 μm and a length of 100-5000 μm.

Embodiment 3

[0032] Except that the particle size of the tin-lead-silver alloy powder is changed to 15-25 μm (Beijing Sanhe Dingxin High-tech Development Co., Ltd.), and the draw ratio of the polyvinyl alcohol / metal composite fiber is 350, other conditions are the same as in Example 1 . According to the observation of Nano-CT photographs, the ultrafine metal fibers contained in the obtained polymer composite fibers have a diameter of 0.2-6 μm and a length of 30-700 μm.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
melting pointaaaaaaaaaa
melting pointaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention provides a polymer composite fiber containing superfine metal fibers and a preparation method of the polymer composite fiber. The preparation method of the polymer composite fiber comprises the following steps: filling polymer resin with metal powder with a melting point not lower than the melting point or softening temperature of the polymer resin to obtain a blend, and directly longitudinally stretching when the blend is extruded by virtue of an extruding machine and passes through a mouth mould of the extruding machine, so that the polymer composite fiber containing the superfine metal fibers is obtained; and in a preparation process, the metal powder extends in situ to form superfine metal fibers which serve as a dispersion phase and are distributed in the polymer fiber under the interaction between a polymer and metal and other factors, so that the performance of the composite fiber is improved. The preparation method of the polymer composite fiber has the advantages of good applicability and relatively low cost; meanwhile, the particle size of the metal powder, polymer kinds and the like are adjusted, so that diameters of the superfine metal fibers contained in the composite fiber are adjustable and even can be in nanoscale, and the composite fiber has excellent properties.

Description

technical field [0001] The invention relates to a method for preparing polymer composite fibers, and furthermore, relates to a method for preparing polymer composite fibers containing ultrafine metal fibers prepared by metal powder and thermoplastic polymers, and the prepared polymer Composite fibers. Background technique 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 circui...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B29C69/02B29C47/00B29C55/00
Inventor 乔金樑陈刚张晓红宋志海蔡传伦戚桂村王亚赖金梅李秉海张红彬王湘高建明蒋海斌何谷茹越
Owner CHINA PETROLEUM & CHEM CORP