Anti-static phosgene modified polyacrylonitrile carbon fiber

Abstract

The invention discloses an anti-static phosgene modified polyacrylonitrile carbon fiber which is characterized by being prepared through the steps of: uniformly mixing 180 parts of acrylonitrile, 10 parts of methyl acrylate and 10 parts of itaconic acid, adding an azo initiator of 1 part of dimethyl 2,2'-azobis(2-methylpropionate) and 1 part of 1-((cyano-1-methylethyl)azo)formamide for carrying out polymerization reaction to produce an polyacrylonitrile base carbon fiber precursor; and modifying the polyacrylonitrile base carbon fiber precursor through COCl2 by adopting an immersion method. An anti-static coating obtained by using the carbon fiber in the invention as an anti-static additive has better tensile property, impact resistance, wear resistance and corrosion resistance, and also has better anti-static property.

Description

technical field [0001] The invention belongs to the field of antistatic materials, and relates to a phosgene-modified polyacrylonitrile carbon fiber for antistatic. Background technique [0002] Static electricity is generated by mutual friction or induction between objects, such as gas transportation and discharge, liquid stirring and spraying, solid crushing and grinding, dust mixing and sieving, etc., all of which will generate static electricity, and the static electricity protection is slightly negligent. , it may cause fire, explosion and personal electric shock, and sometimes interfere with normal production and affect product quality. Therefore, it is necessary to take practical protective measures against static electricity. In industrial production, antistatic coatings are often sprayed on the surface of products or workpieces to eliminate static electricity hazards. the goal of. In current antistatic coatings, the main antistatic additives are metal powder or gr...

AI Technical Summary

Problems solved by technology

[0002] Static electricity is generated by mutual friction or induction between objects, such as gas transportation and discharge, liquid stirring and spraying, solid crushing and grinding, dust mixing and sieving, etc., all of which will generate static electricity, and the static electricity protection is slightly negligent. , it may cause fire, explosion and personal electric shock, and sometimes interfere with normal production and affect product quality. Therefore, it is necessary to take practical protective measures against static electricity. In industrial production, antistatic coatings are often sprayed on the surface of products or workpieces to eliminate static electricity hazards. the goal of

In current antistatic coatings, the main antistatic additives are metal powder or graphite powder. Although both have good electrical conductivity, metal powder is easy to oxidize, graphite powder has poor adhesion, and is difficult to absorb in the coating. Form a continuous conductive network, can not achieve the ideal anti-static effect

In addition, the final antistatic coating should also have good impact resistance, wear resistance and corrosion resistance. It is difficult for existing antistatic coatings to fully meet these requirements.

The Chinese patent whose publication number is CN1632002 discloses a preparation method of an antistatic coating, which is mainly prepared by mixing expanded graphite materials with organic film-...