Method for manufacturing conductive polypropylene fibers

Abstract

The invention discloses a method for manufacturing conductive polypropylene fibers. The method comprises the following steps of: A) uniformly mixing tetrapod-shaped zinc oxide whiskers with conductive potassium titanate whiskers, baking the mixture in a vacuum furnace, cooling, then dispersing by stirring in absolute ethyl alcohol containing sodium hexametahposphate, performing plasma treatment at normal pressure, and performing ultrasonic dispersion, cleaning, filtering and drying in deionized water containing a calcium stearate dispersion liquid to obtain a modified whisker mixture; B) mixing and stirring the modified whisker mixture with antimony doped tin oxide conductive powder, superconducting carbon black, an aluminate coupling agent, polyethylene wax and a PP-g-MAH compatibilizer, adding isotactic polypropylene powder into the mixture, and stirring to obtain a conductive isotactic polypropylene blend; and C) preparing the conductive isotactic polypropylene blend and other compatible polypropylene (PP) or polyethylene (PE) into the conductive polypropylene fibers with the conductive polypropylene as a skin layer through composite spinning.

Description

technical field [0001] The invention relates to a method for manufacturing conductive polypropylene fibers, including zinc oxide whiskers (ZnO), conductive potassium titanate whiskers (PTW), ATO conductive powder, superconductive carbon black and other fibers, which belong to functional fibers Manufacturing Technology. Background technique [0002] Polypropylene fiber, also known as PP fiber or polypropylene fiber, is a fiber spun from isotactic polypropylene. Its biggest advantage is light weight and a density of 0.91 / cm 3 , 20-30% lighter than ordinary chemical fibers, is the smallest specific gravity of all textile fibers, it has high strength, large elongation, high initial modulus, and excellent elasticity. The wear resistance of polypropylene fiber is second only to that of polyamide fiber; it has good corrosion resistance, especially for inorganic acid and alkali stability; it does not mold, rot, and is not afraid of moths; but polypropylene fiber does not absorb wat...

AI Technical Summary

Problems solved by technology

[0006] For many years, scientific and technological workers have used ordinary fiber-forming polymers as the matrix to develop conductive fibers of polymer materials by adding conductive substances. In this way, the fibers not only have conductive properties, but also have the excellent processing performance of ordinary synthetic fibers. Functional fiber with spinnability, but the conductivity and fiber strength of polymer matrix conductive fiber are not as good as metal conductive fiber, and metal conductive fiber is too hard and lacks elasticity, which is greatly restricted in use