A solvent-free weather-resistant epoxy anti-corrosion coating and preparation method thereof
An epoxy anti-corrosion coating and weather-resistant technology, applied in the field of coatings, can solve the problems of easy powdering, easy degradation and chain scission, poor weather resistance of the coating film, etc. Effect
Active Publication Date: 2022-03-29
HUIZHOU CITY HUIYANG DISTRICT JIATAI PAINT CO LTD
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- Description
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Problems solved by technology
[0003] Epoxy coatings have excellent adhesion, water resistance and anti-corrosion performance, and can be widely used in metal anti-corrosion protection. However, epoxy resin contains ether bonds, and the coating is easily degraded and broken after being irradiated by ultraviolet rays. The weather resistance of the coating film is poor. Easy to pulverize
Method used
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Embodiment
[0021] The following table is the formula table (unit: part) of 3 embodiments of solvent-free weather-resistant epoxy anticorrosion coating of the present invention:
[0022]
[0023]
[0024] A preparation method of the solvent-free weather-resistant epoxy anticorrosion coating comprises the following steps:
[0025] a. Mix tetraphenol ethane tetraglycidyl ether epoxy resin with additives, disperse at 600-800r / min for 15-30min;
[0026] b. Mix terminal reaction group polybutadiene polyurethane modified epoxy resin, silane coupling agent and nano inorganic filler, disperse at 800-1000r / min for 15-30min;
[0027] c. Mix the material obtained in step a with the material obtained in step b, stir evenly, and then grind to a fineness of less than 50 μm to obtain component A.
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Abstract
The invention belongs to the technical field of coatings. A kind of solvent-free weather-resistant epoxy anticorrosion paint, comprises A component and B component, and described A component comprises the following components calculated by mass parts: Tetraphenolyl ethane tetraglycidyl ether epoxy resin 30‑ 40 parts, terminal reactive polybutadiene polyurethane modified epoxy resin 60‑80 parts, reactive diluent 15‑45 parts, nano inorganic filler 1‑5 parts, silane coupling agent 3‑5 parts, auxiliary agent 1‑ 5 parts; the B component includes the following components calculated in parts by mass: 15-35 parts of curing agent. The coating of the invention has good weather resistance, corrosion resistance and mechanical properties.
Description
technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a solvent-free weather-resistant epoxy anticorrosion coating and a preparation method thereof. Background technique [0002] Each layer of solvent-free coating can be thickly coated, with high construction efficiency, no solvent volatilization, can form a non-porous coating, improve the compactness, anti-corrosion performance and isolation and shielding performance of the coating, no VOC during construction, safe and environmentally friendly, and the coating components are sufficient Converted into a film, the raw material cost per unit thickness is low. [0003] Epoxy coatings have excellent adhesion, water resistance and anti-corrosion performance, and can be widely used in metal anti-corrosion protection. However, epoxy resin contains ether bonds, and the coating is easily degraded and broken after being irradiated by ultraviolet rays. The weather resistance of th...
Claims
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IPC IPC(8): C09D163/00C09D175/14C09D5/08C09D7/61C09D7/63
CPCC09D163/00C09D5/08C09D7/61C09D7/63C09D5/18C08L2205/025C08L2205/03C08K2201/011C08K2003/328C08L2201/08C08L63/00C08L75/14C08K13/02C08K3/28C08K3/32C08K3/24C08K5/5435
Inventor 周学军
Owner HUIZHOU CITY HUIYANG DISTRICT JIATAI PAINT CO LTD
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