Mother stock of polyvinyl carbon nanotube anti-static composite material and anti-static composite material based on mother stock

Abstract

The invention relates to an anti-static modified material with carbon nanotubes (CNTs) predominantly and a process which is a thermal oxidation treatment with acid together with a ball grinding surface treatment to CNTs and comprises: adding maleic anhydride grafted polyethylene, coupling agents and EPT rubber to prepare the high concentration masterbatch of CNTs / PE anti-static composite material by solution blending and melt blending methods, mixturing the said masterbatch with common PE in a finite proportion to melt blend and prill, then getting the final CNTs / PE anti-static composite material. The electrical surface resistivity and volume resistivity can reach the operating requirements of the anti-static material when the content of CNTs is only 0.3 wt % in the CNTs / PE anti-static composite material in the invention.

Description

technical field

[0001] The present invention relates to an antistatic composite material masterbatch and an antistatic composite material based on the masterbatch, specifically, polyethylene with carbon nanotubes (CNTs) as the main antistatic modification material and polyethylene as the main modification object Carbon nanotube based antistatic composite material and its masterbatch. Background technique

[0002] Due to its low price, excellent performance, and easy processing, polyethylene has been widely used in various fields such as packaging, daily necessities, chemicals, automobiles, and medical treatment, and has become one of the most widely used plastics. For example, polyethylene has excellent electrical properties, which makes it widely used in electrical insulation materials, but it is precisely because of its electrical insulation that it has defects in chemical pipelines, containers, films, etc. It is easy to generate static charge when rubbing or peeling off ...