Special epoxy anticorrosive antibacterial powder coating for valve fire protection and preparation method thereof

Abstract

The invention provides special epoxy anticorrosive antibacterial powder for valve fire protection and a preparation method thereof. The preparation method comprises the following steps: adding 50-65Kgof resin powder; 16.5 to 18.5 Kg of a curing agent; 0.8 to 1.1 Kg of a flowing water agent; 1.8 to 2.2 Kg of titanium dioxide; 18 to 22Kg of barium sulfate; 0 to 1Kg of gloss enhancer; 0.3 to 0.6 Kgof benzoin; 0.5 to 0.8 kg of wax, 0.2 to 0.35 kg of a defoaming agent, 1.35 to 1.65Kg of an accelerant, 350 to 450Kg of a pigment, 0.2 to 0.35Kg of a glass silver-loaded antibacterial agent, 0.15 to 0.25 kg of an antioxidant and 0 to 2Kg of concentrated phosphoric acid and mixing the above components at a high speed to form powder; adding 0-5Kg of lime milk saturated solution during high-speed mixing to obtain a mixture; carrying out a melting reaction at 96 +/-3 DEG C by using a screw extruder to extrude a mucilage glue-like body, rolling the mucilage glue-like body into continuous sheets with the thickness of 1-1.5 mm, cooling, rolling the sheets into fragments, grinding the fragments into powder by using a high-speed flour mill, screening, and determining the particle size to obtain theantibacterial and anticorrosive powder coating.

Description

technical field [0001] The invention relates to a powder coating, in particular to a special epoxy anti-corrosion and anti-bacterial powder coating for valve fire protection and a preparation method thereof. Background technique [0002] Valve fire protection is a device connected by pipes, pipe connectors and valves to transport gas, liquid or fluid with solid particles. Fire-fighting special valves - laying special fire-fighting valves for water supply, drainage, heating, and gas supply in the city. Most of the special fire-fighting trunks for valves for water supply, drainage, heating, and gas supply and long-distance oil and gas transmission valves are specially laid for fire-fighting. It is specially laid on the ground for easy operation and maintenance. [0003] There are many special application methods for valve fire protection, which play a very important role in industrial production. The paint used for valve fire protection or the surface of valves or faucets mu...

AI Technical Summary

Problems solved by technology

Although these coatings have a certain anti-corrosion ability, the anti-bacterial effect is not good. There are a large number of bacteria and algae microorganisms in the special fire-fighting valve of the water injection valve, such as sulfate-reducing bacteria, iron bacteria, and saprophytic bacteria. The inner wall of the valve for fire protection will accumulate nodules, corrode and block the valve for fire protection; the existence of harmful bacteria and algae microorganisms will directly affect the water quality of the water supply

In addition, the current valve fire protection patent powder has low thermal conductivity, low heat distortion temperature, poor weather resistance, poor melting between materials, and low tensile strength and surface hardness of the mixture.

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