Permanent antistatic paint and its prepn

Abstract

The antistatic paint is prepared with resin varnish 100(in weight portions, the same below), high structure carbon black 5-40 and preferably 20-25, solvent 15-50, and coupling agent 0.1-0.3. The resin varnish is acrylate, epoxy resin, polyester or polyurethane. The production process includes stoving carbon black at 60-100 deg.c, spraying carbon black with coupling agent, adding carbon blac, resin and solvent successively into container while stirring, and ball milling. The paint of the present invention has the same antistatic effect as antistatic plastic but much less consumption and thus much lower cost, and has no influence on the other performance, such as mechanical performance, of the painted body.

Description

[0001] 1. Technical field: the present invention belongs to a kind of special paint, especially permanent antistatic paint and its preparation method. 2. Background technology: [0002] Prior art, such as the manufacturing method of a product with permanent antistatic properties obtained by the applicant (such as electronic equipment casings, electronic product packaging containers, etc.) is to use antistatic plastics for injection molding and molding. It has many defects; first: antistatic plastics are expensive, 4-10 times that of ordinary plastics, and its molded products are 3-5 times that of ordinary plastics; second: antistatic plastics are modified, and other The performance of some aspects has declined (such as impact strength, tensile strength, fluidity, etc.) The performance of its molded products (especially mechanical strength) is not as good as ordinary plastic products; third: due to the material shrinkage of antistatic plastics Unlike ordinary materials, it cann...

AI Technical Summary

Problems solved by technology

It has many defects; first: antistatic plastics are expensive, 4-10 times that of ordinary plastics, and its molded products are 3-5 times that of ordinary plastics; second: antistatic plastics are modified, and other The performance of some aspects has declined (such as impact strength, tensile strength, fluidity, etc.) The performance of its molded products (especially mechanical strength) is not as good as ordinary plastic products; third: due to the material shrinkage of antistatic plastics Unlike ordinary materials, it cannot be molded using existing molds

It is necessary to design and manufacture molds separately, so the cost is high and the cycle is long; fourth: if it is an antistatic plastic modified by an antistatic agent (a surfactant), its antistatic performance is unstable