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Fireproof flame-retardation type valve antifouling powdery paint and manufacturing method thereof

A powder coating, fireproof and flame retardant technology, applied in the field of coatings, can solve the problems of coating shrinkage, surface roughness, valve application restrictions, etc., and achieve the effect of improving high and low temperature resistance and good compatibility

Inactive Publication Date: 2015-12-16
ANHUI RONGDA VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the valve body is a casting or forging, its surface is rough, and the current functional powder coating technology for valve surface treatment in the existing technology still has certain defects, resulting in defects such as shrinkage cavities, pinholes, and severe orange peel in the coating, which in turn leads to The application of valves in special fields such as food, biology, pharmaceuticals, chemicals, aerospace and electronics is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The fire-resistant and flame-retardant valve antifouling powder coating is characterized in that it is made of the following raw materials in parts by weight: high hydroxyl polyester resin 57, hydroxyl acrylic resin 27, HDI trimer 6, polyvinylidene fluoride 11. Nano titanium dioxide 1.9, heavy calcium carbonate 5, ceramic powder 8, epoxy linseed oil 7, pentachlorobiphenyl 17, phenyl o-hydroxybenzoate 2.7, dihydroxypolydimethylsiloxane 4, dimethyl Acetamide 29.

[0013] The preparation method comprises the following steps:

[0014] (1) Stir and mix epoxy linseed oil and pentachlorobiphenyl evenly, heat up to 75-95°C, add ceramic powder, fully stir and condense and reflux for 2-4 hours, ultrasonically disperse evenly, and spray dry to obtain modified ceramic powder ;

[0015] (2) Calcinate nano-titanium dioxide at 715-820°C for 30-50 minutes at high temperature, cool to room temperature and oscillate ultrasonically for 20-40 minutes, add dihydroxypolydimethylsiloxane an...

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PUM

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Abstract

The invention discloses fireproof flame-retardation type valve antifouling powdery paint. High-hydroxyl polyester resin and hydroxy acrylic resin are taken as main film-forming substances, HDI trimer is taken as a curing agent, the product high / low-temperature resistance is improved after modified polyvinylidene fluoride is added, and other effective additives are added, are good in intermiscibility after being modified, are capable of rapidly floating on a paint film surface, and are fixedly attached to the paint film surface through hydroxyl and -NCO, so that pollutants are difficult to attach to the paint film surface, and therefore the paint film possesses durable antifouling performance, and the prepared product possesses excellent performances of fireproofness, flame retardation, weatherability, chemical corrosion resistance, and the like.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a fire-proof and flame-retardant valve antifouling powder coating and a preparation method thereof. Background technique [0002] In recent years, the application of powder coatings has surpassed water-based coatings and high-solid coatings in the coatings industry, and has become one of the most widely used coatings in the industry. The powder coating process solves the problems of flammability, explosion and environmental pollution in the traditional paint coating process, and its coating has superior performance, the raw materials can be recycled and reused, and the coating process is simple. It can be widely used in the coating of valve shells. Since the valve body is a casting or forging, its surface is rough, and the current functional powder coating technology for valve surface treatment in the existing technology still has certain defects, resulting in defects such as shrinkage c...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D133/00C09D127/16C09D7/12C09D5/18C09D5/16C09D5/03
Inventor 胡光荣
Owner ANHUI RONGDA VALVE
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