Powder coating for plastic lining, composite master batch and plastic lining composite pipe

Abstract

The invention relates to a powder coating for plastic lining, a composite master batch and a plastic lining composite pipe. The powder coating for the plastic lining at least comprises resin, a fillerand an auxiliary agent, the resin comprises a resin base material and a resin proportioning material, the filler includes graphene, the graphene and the resin are proportioning material are prefabricated into a composite master batch, the composite master batch is added into the powder coating, the resin preferably selects carboxyl polyester resin, and the auxiliary agent preferably comprises a lubricant polyethylene wax. The preparation method comprises the following steps: mixing and dispersing graphene and the resin proportioning material, and crushing or granulating; or firstly dispersinggraphene into a lubricant, then mixing with the resin proportioning material, dispersing, and crushing or granulating to obtain a composite master batch; and then preparing the powder coating from the resin base material and other raw materials. By optimizing the components of the coating and optimizing the graphene adding process, on the basis of ensuring the optimal mechanical, chemical and thermal properties of a coating film, rapid proportioning is realized, the operation time is shortened, and a way is provided for the industrial application of graphene in the plastic-lined powder coating.

Description

technical field [0001] The invention relates to the technical field of powder coatings, in particular to a plastic-lined powder coating (including its preparation method), a composite masterbatch and a plastic-lined composite pipe. Background technique [0002] At present, most of the anticorrosion of steel-plastic pipelines still adopts the traditional painting process, which not only causes environmental pollution, but also has low production efficiency, serious waste of raw materials, poor anticorrosion effect, poor adhesion, and easy peeling of the paint surface, which needs to be carried out at regular intervals. Repainting, and the powder coating has excellent anti-corrosion performance, no harmful substances will be produced in the production process and actual use, it is an environmentally friendly anti-corrosion material, and it has strong adsorption to the pipeline, long service life, simple production process, and greatly improves the anti-corrosion efficiency. , ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a powder coating for plastic lining. By optimizing the resin-based coating components and introducing graphene materials into the powder coating, the steel-plastic pipeline coating film can be improved on the basis of ensuring the overall strength and chemical stability of the coating film. Excellent mechanical wear resistance and thermal conductivity. At the same time, by optimizing the introduction and addition process of graphene, the on-demand ratio can be realized, and the time-consuming problem of graphene material dispersion can be solved, and the dispersion effect can be improved.