Propionic acid and its salts
Propionic acid is a corrosive organic acid, a colorless transparent liquid, easily soluble in water. Propionic acid and propionic acid salts are acidic mold inhibitors, with a wide antibacterial spectrum, mold, fungi, yeast, etc. have a certain effect of pressure, its toxicity is very low, is the central product of normal animal metabolism, a variety of animals can be used, is the most commonly used in the forage of antifungal agents.
Benzoic acid and sodium benzoate: benzoic acid and sodium benzoate can non-selectively press the activity of microbial cell respiratory enzymes, so that the metabolism of microorganisms is hindered, and then effectively press the growth and reproduction of a variety of microorganisms, and no adverse effects on the growth and reproduction of animals.
Influence of Micronized Wax on the Luster of Coating Film
Micropowder wax is generally used together with micron-level synthetic silica. In addition to enhancing the matting performance of the coating film, it can also improve the surface characteristics (abrasion resistance, smoothness, soft touch, etc.), and provide surface protection (scratch resistance) , Anti-adhesive properties, etc.), increase sanding properties, etc.
The particle size and particle size distribution of the micropowder wax mainly affect the matting performance of the coating film, which is consistent with the micropowder grade synthetic silica.
The melting point of wax is lower than 100°C, which has good slippery properties; the melting point is higher than 140°C, which has good abrasion resistance and scratch resistance; the melting point is 100~140°C, ptfe powder coating and the performance is somewhere in between.
The polarity of the wax is also related to the surface properties of the coating. Generally, low-polar waxes have good hydrophobicity and anti-blocking properties, such as paraffin wax; high-polar waxes are relatively smooth and have high hardness, such as palm wax. Influence of resin system and coating application method
Influence of resin system
The gloss of the coating film is not only affected by the properties of the matting agent, but also the resin system with different curing mechanisms is also an important factor. The matting performance of aerogel and precipitation matting agents in different resin systems.
The resin system has a considerable influence on the gloss of the coating film. Nitro resin coating film itself has low gloss and is easy to matte; while polyester, polyurethane and other coating films have high gloss, which is difficult to matte. The influence of coating film thickness on the gloss of the coating film.
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