Preparation method of hydrophobic wax-proof composite coating and hydrophobic wax-proof composite coating

Abstract

The invention discloses a preparation method of a hydrophobic wax-proof composite coating. The preparation method comprises the following steps: a base material pretreatment step of cleaning a base material, a coating step of uniformly coating the base material with silicone rubber, a pit structure transfer printing step and a deposition step. In the pit structure transfer printing step, the gluing surface, coated with the silicon rubber, of the base material is in contact with a template with a lotus leaf surface structure, so that the gluing surface is constructed to be of a pit structure corresponding to the lotus leaf surface structure. And in the deposition step, nano carbon black particles are deposited on the gluing surface, and the nano carbon black particles enter the pits, so that the hydrophobic wax-proof composite coating is obtained. According to the preparation method of the hydrophobic wax-proof composite coating, the preparation process is simple, the cost is low, and the obtained coating has excellent super-hydrophobic and wax-proof effects, has good mechanical durability and is suitable for the oil-water two-phase flow working condition of crude oil transportation.

Description

Technical field[0001]The present invention relates to the technical field of petroleum mining and transport, and in particular, a method of preparing a hydrophobic wax composite coating and a hydrophobic wax composite coating coating.Background technique[0002]During crude oil mining and storage, when the temperature is lower than the waxiongone, the paraffin group in crude oil will slowly precipitate and deposited in the inner wall of the pipe, causing the pipeline to block, and induce safety accidents. The world needs more than 100 million US dollars to solve petroleum mining, and transport various problems caused by paraffin deposition.[0003]At present, the study of superhydrophobic coating is restricted by special processing equipment, making the preparation of superhydropic coating, and the superhydrophilic coating prepared is easily destroyed, and the durability is limited in actual use, which is not conducive to large scale. Production and use.[0004]Also, there is currently no...

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Problems solved by technology

[0003] The current research on superhydrophobic coatings is restricted by special processing equipment, which makes the preparation of superhydrophobic coatings more cumbersome, and the prepared superhydrophobic coatings are easily damaged, and their durability is limited in actual use, which is not conducive to large-scale production and use

[0004] Moreover, there is no mature coating with superhydrophobic properties and wax-repellent properties and its preparation method at the same time.

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