A kind of fusion bonded epoxy powder material, coated steel pipe and its preparation method and application

Abstract

The invention relates to a fusion bonded epoxy powder material, a steel pipe, a preparation method and application thereof. It includes the following raw materials in parts by weight: 40-60 parts of epoxy resin, 8-12 parts of phenolic curing agent, 20-30 parts of antistatic flame retardant masterbatch, 2.6-12.5 parts of additives, 10-40 parts of nano fillers; antistatic The flame retardant masterbatch includes the following raw materials in parts by weight: 10-20 parts of nano-carbon fiber, 10-20 parts of conductive mica, 5-30 parts of conductive titanium dioxide, 10-20 parts of flame retardant, and 0.5-1 part of powder coupling agent , 40-60 parts of epoxy resin. The coating is prepared on the steel pipe, and the coating has excellent antistatic and flame retardant properties. A variety of pigments can be replaced in the additive, and steel pipes of various colors can be made, which is helpful for identification.

Description

technical field [0001] The invention belongs to the technical field of pipeline anticorrosion, and in particular relates to a fusion-bonded epoxy powder material, a coated steel pipe and a preparation method and application thereof. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Fusion-bonded epoxy powder-coated anti-corrosion steel pipe is a composite product with anti-corrosion performance made of steel pipe as the base pipe, after shot blasting and derusting, and coating a layer of polymer epoxy resin powder on the inner and outer surfaces. , The epoxy coating on the inner and outer walls has strong acid and alkali resistance and corrosion resistance, high surface fin...

AI Technical Summary

Problems solved by technology

At present, the pipelines used in coal mines are divided into water supply pipes, drainage pipes, positive pressure air pipes, spray pipes, and gas drainage pipes according to their purposes. When there is an abnormality in the pipeline, when it is necessary to open and close the pipeline, it is impossible to quickly identify the medium transported in each pipeline and its specific use, which will affect the efficiency of abnormal handling. In order to identify the type of medium transported in the pipeline, the mine usually adopts the following methods: 1 .Paste the identification plate, but the identification plate is easy to fall off and the recognition is low; 2. Rely on the color marking line of the pipe body itself to distinguish, but the color marking line does not have antistatic performance, and the color marking line is thin, the marking is not clear, and the installation If the color mark line is completely aligned, the connection efficiency will be reduced; 3. The pipe produced by painting the color antistatic agent, the antistatic agent is easy to fail on the surface of the pipe, and cannot meet the permanent effect. 4. The use of ordinary color plastic-coated steel pipes cannot It meets the requirements of antistatic and flame retardant, and is extremely risky for underground use in mines

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