A high-performance flame-retardant antistatic powder coating and its preparation method

Abstract

A high-performance flame-retardant antistatic powder coating and a preparation method thereof belong to the technical field of coatings. The coating is composed of epoxy resin, antistatic hyperbranched polyester, high flame-retardant curing agent, curing accelerator, leveling agent, release agent Composition of air agent, pigment and filler; antistatic hyperbranched polyester, its preparation includes modification of antistatic tin dioxide powder, synthesis of antistatic hyperbranched polyester; high flame retardant curing agent contains two elements of phosphorus and bromine , the curing agent is finally cross-linked and cured into the matrix resin of the coating in the form of chemical bonding, which has no effect on the properties of the coating, and avoids the problem that the additive flame retardant seriously affects the conventional performance of the coating; the present invention obtains Powder coating, oxygen index 48~51, GB14907-2018 standard fire resistance 0.95~1.15 hours, surface intrinsic resistance value 1.14~1.35×10 4 Ω.

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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