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Function of aldehyde ketone resin

2022-09-29 10:14:02
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Aldehyde ketone resin is a resin product formed by the co condensation of cyclohexanone and formaldehyde under certain conditions. This resin has high hardness Low viscosity, especially suitable for paint, ink and other modification additives. The raw materials used in this resin are cheap and rich in sources It is easy to be industrialized, so it has been industrialized in Japan, the United States, Germany, etc. This kind of resin has been developed in China in the 1970s However, there has been no report and industrial production. The traditional method for synthesizing aldehyde ketone resin is the next step co condensation of cyclohexanone and formaldehyde in the presence of organic solvent and sodium hydroxide. However, the quality of the obtained resin is unstable, and the compatibility with hydrocarbon solvents is poor, and the color is dark. Therefore, the modification effect on materials such as coatings is not ideal.

Aldehyde ketone resin is a neutral, non-toxic hard resin formed by condensation of aldehydes and ketones. Its appearance is colorless to yellowish transparent particles. It can dissolve in all solvents commonly used in the paint industry except fatty hydrocarbons, and has very good solubility; It is also applicable to most printing ink, coating and adhesive systems, and can be used to improve the fast fluidity, dryness, luster, adhesion, wettability of pigments, etc. of printing ink, adhesive and coating. The chemical structure of aldehyde ketone resin endows it with special quality and characteristics. Because this resin does not contain ester bond in its structure, it has good water resistance. In addition, the polarity of ketone group and hydroxyl group not only makes it widely soluble and miscible, but also has good pigment wettability and adhesion. Such characteristics make it an ideal raw material for inks, coatings and adhesives, which can improve the fast drying, glossiness, adhesion, leveling, pigment wettability, weather resistance and solid content of inks, coatings and adhesives.


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