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Method for preparing steel structure aqueous corrosion-resistant fireproof coating material

A fire-resistant coating and steel structure technology, applied in anti-corrosion coatings, fire-resistant coatings, coatings, etc., can solve the problems of discontinuous fire-proof carbon layer, limit the flame-retardant efficiency of P-N flame retardants, etc., achieve simple construction and eliminate microscopic corrosion , avoid the effect of re-stacking and aggregation

Active Publication Date: 2018-07-24
辽宁麦琪新材料集团有限公司
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Problems solved by technology

However, adding P-N flame retardants alone will form a discontinuous fireproof carbon layer, which seriously limits the flame retardant efficiency of P-N flame retardants.

Method used

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  • Method for preparing steel structure aqueous corrosion-resistant fireproof coating material

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with examples.

[0027] (1) Preparation of functionalized MoSe2 nanosheets: Melamine and phytic acid were prepared into 0.05wt% and 1wt% solutions, respectively.

[0028] ① Dissolve phytic acid in a solution of ethanol and water (ethanol: water = 95:5) at room temperature to form a mixed solution with a concentration of 2g / L. At room temperature, the MoSe2 nanosheets were soaked in this solution, and after 2 hours, the solution was centrifuged three times with a centrifuge, rinsed three times with deionized water, and finally dried with nitrogen for later use.

[0029] ② Put the above-mentioned MoSe2 nanosheets in the prepared melamine solution for 30 minutes, centrifuge the solution 3 times in a centrifuge, rinse 3 times with distilled water, and blow dry with nitrogen;

[0030] ③ Put the melamine-adsorbed MoSe2 nanosheets in the prepared phytic acid solution for 30 minutes, centrifuge the solution...

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Abstract

The invention discloses a method for preparing a steel structure aqueous corrosion-resistant fireproof coating material and relates to a coating preparation method. The method comprises the followingsteps: establishing a melamine and phytic acid flame-retardant layer from molybdenum diselenide (MoSe2) nanosheets by using a layer-by-layer self-assembling method (LBL), and filling an aqueous epoxyresin with the functionalized molybdenum diselenide nanosheets, so as to obtain a steel structure aqueous corrosion-resistant fireproof coating. By adopting the method, the P-N system flame-retardantlayer is prepared, so that the flame retardancy of the aqueous epoxy resin can be improved; the phytic acid in the nano packing has great chelation potential energy, so that the coating can be connected in a relatively intense mode through the phytic acid, and the corrosion resistance and the durability of the coating can be improved; the problem that a nano particle is liable to aggregate becauseof the high surface energy can be also solved.

Description

technical field [0001] The invention relates to a coating preparation method, in particular to a preparation method of a steel structure water-based anticorrosion and fireproof coating material. Background technique [0002] Metal corrosion is a phenomenon in which metal materials are destroyed by chemical or electrochemical reactions, which poses a serious threat to the national economy and industrial structure. Therefore, corrosion protection plays a very important role in the modern metalworking industry. However, corrosion cannot be completely suppressed. Currently uncontroversial methods include cathodic protection, brush application of protective coatings and addition of corrosion inhibitors, or any combination of the above, with the use of protective coatings being the most widely used method. A current challenge regarding protective coatings is novel multifunctional materials as corrosion inhibitors that can meet different environmental demands due to their excelle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/18C09D5/08
CPCC08K3/30C08K7/00C08K9/04C08K2201/011C09D5/08C09D5/18C09D163/00
Inventor 王娜滕海伟亢萍张静
Owner 辽宁麦琪新材料集团有限公司
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