Nano degreasing food emulsifier is the use of nano-permeation and osmosis technology, penetrating the outer hard film of the emulsion to destroy the molecular structure, to achieve the purpose of rapid emulsification.
Acid anhydride adducts
Acid anhydride is one of the important curing agents for epoxy powder coatings. Acid anhydride curing agents are phthalic anhydride, tetrahydrophthalic anhydride, internal hypo Tetrahydrophthalic anhydride, trimellitic anhydride, homophthalic tetracarboxylic dianhydride, benzophenone tetracarboxylic dianhydride, ethylene glycol di-trimellitic anhydride ester, etc.
4L sex powder comes to the coating because the small molecule anhydride pe wax definition is easy to decompose and the bundle is irritating, so the anhydride is generally modified to reduce its irritation, so that Can also improve the mechanical properties of the cured coating film, especially the flexibility of the coating film has significantly improved. General modified anhydride curing epoxy powder coating curing speed Curing speed The physical and mechanical properties, chemical resistance, heat resistance and color retention of the coating film are good. The disadvantage of this powder coating is that it is easy to The disadvantage of this powder coating is that it is easy to absorb moisture, which affects the storage stability of the powder coating, thus affecting the leveling and mechanical strength of the coating film. Modified homophthalic dianhydride cured non-phthalmic epoxy powder coatings Powder coating formulations and modified anhydride ultra-fast curing epoxy powder coating formulations are shown in Table 4-34 and Table 4-35.
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