High-performance flame-retardant antistatic powder coating and preparation method thereof

Abstract

The invention relates to a high-performance flame-retardant antistatic powder coating and a preparation method thereof, and belongs to the technical field of coatings, the coating is composed of epoxy resin, antistatic hyperbranched polyester, a high-flame-retardant curing agent, a curing accelerator, a leveling agent, a degassing agent and a pigment filler; the preparation method of the antistatic hyperbranched polyester comprises the following steps: modifying antimony-doped tin dioxide powder, and synthesizing the antistatic hyperbranched polyester. The high-flame-retardant curing agent contains two elements of phosphorus and bromine, the curing agent is finally crosslinked and cured into matrix resin of the coating in a chemical bonding manner, various properties of the coating are not influenced, and the problem that the conventional properties of the coating are seriously influenced by an additive flame retardant is avoided; the oxygen index of the powder coating is 48-51, the fire resistance is 0.95-1.15 hours according to the standard GB14907-2018, and the surface inherent resistance value is 1.14-1.35 * 10 < 4 > omega.

Description

technical field [0001] The invention relates to a high-performance flame-retardant and antistatic powder coating and a preparation method thereof, belonging to the technical field of coatings. Background technique [0002] If a large amount of static electricity accumulates on insulating materials, it will cause the equipment to be unusable, such as causing distortion of precision instruments and scrapping of electronic components. In recent years, there have been many serious fire and explosion accidents caused by static electricity in my country's petrochemical enterprises. Since the elimination of static electricity in many fields is limited by the shape and operating conditions of the equipment, it is difficult to achieve it through additional equipment and other means. Therefore, antistatic coating materials have emerged as the times require. Antistatic powder coatings can not only quickly conduct current and eliminate static charges, but also are widely used because o...

AI Technical Summary

Problems solved by technology

However, most antistatic powder coatings have a single function at present, which can only prevent static electricity accumulation, and are difficult to be used in environments with high requirements for flame retardancy, weather resistance, acid and alkali corrosion resistance, etc.

[0003] Chinese patent CN103254729A discloses an antistatic, flame retardant powder coating and its production method, which is composed of base powder and modified conductive mica powder. The patent uses physical blending to mix conductive mica powder and flame retardant into the resin matrix. , although it has certain flame retardant and antistatic effects, it is difficult to obtain high-performance coatings

[0005] It can be seen from the above patents that it is still difficult to obtain a coating material with excellent antistatic, flame retardant and other properties in the currently disclosed flame retardant and antistatic powder coating formulations and preparation methods.

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