Polyimide composite coating and preparation method thereof and application thereof

A polyimide and composite coating technology, applied in coatings, anti-corrosion coatings, anti-fouling/underwater coatings, etc., can solve the problems of unsuitable on-site construction and cumbersome procedures, and achieve low cost, simple process, combined with good effect
CN105838239AActive Publication Date: 2016-08-10NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
Publication Date
2016-08-10

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Abstract

The invention discloses a preparation method of polyimide composite coating. The method includes the following steps: step 1: preparing the polyimide spraying raw material, wherein the polyimide spraying raw material is thermosetting polyimide composite precursor slurry, thermoplastic polyimide composite precursor slurry or thermoplastic polyimide composite powder; step 2: performing surface oil-removing of the matrix and coarsening processing; and step 3: sending the spraying raw material prepared by step 1 to a thermal spraying flame flow, and spraying on the treated matrix surface to form the polyimide composite coating. The invention discloses the preparation method of polyimide composite coating, and the method has simple technology, high efficiency and low cost, and is suitable for site operation. The spraying is not limited by the size and shape of the workpiece. The prepared polyimide composite coating is combined well with the matrix, has effective antifouling and anticorrosion performances, and can be used for a plurality of antifouling and anticorrosion occasions such as external surface of industrial component used for ocean.
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Description

technical field

[0001] The invention relates to the technical field of composite coatings, in particular to a polyimide composite coating and its preparation method and application. Background technique

[0002] The rapid development of the marine economy puts forward more demands and higher quality requirements for engineering equipment and living facilities in the seawater environment. In fields such as ships and ships, marine engineering equipment, and marine entertainment facilities, there will be more and more Most of the equipment is in service in the seawater environment. Biofouling and corrosion of marine engineering materials is a worldwide problem and the focus of attention that has always existed with the development and utilization of oceans by humans.

[0003] Extensive research has been carried out on the corrosion of marine engineering materials at home and abroad, including the selection of corrosion-resistant material systems, surface coatings, cathodic pro...

Claims

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