N-vinylpyrrolidone (NVP) is a colorless or slightly yellow clear liquid. Its homopolymers and copolymers have inherent characteristics such as high polarity, water solubility, chemical stability, low toxicity, cationic activity, etc., so they are widely used in pharmaceutical, cosmetics, coatings, inks, adhesives and other industries, and are used in polyvinyl Preparation of ketones.
1. Direct application as a monomer:
It is mostly used in UV radiation curing. Adding this monomer to the formulation of UV curing coatings can form a flexible and hard plastic film; adding NVP to radiation medical formulations can improve the elongation and viscosity of high-gloss and low-gloss coatings; It can enhance the performance and quality of wax-free flooring in the anti-UV coatings for the wooden floor industry; NVP can meet the low viscosity and high reactivity standards of UB and EB cured coatings in paper or paperboard by improving the fluidity and measurement level, and maintain it well The curing characteristics.
2. Application after polymer generation:
Vinylpyrrolidone can polymerize by itself to form polyvinylpyrrolidone (PVP), or it can be polymerized with other monomers to form copolymers. It has unique water solubility, excellent physiological inertia, does not participate in human metabolism, excellent biocompatibility, and is good for skin. , Mucous membranes, eyes, etc., without any irritation, which makes it widely used in drug controlled release materials, contact lenses (contact lenses), artificial vitreous, wound and burn coating gels in the medical polymer material industry; Separation membranes, photo-curable resins, photo-curable coatings, optical fibers, laser discs and other emerging high-tech fields are increasingly used, especially in contact lens soft lens materials, adding vinyl pyrrolidone can increase the hydrophilicity and lubricity of the material .
N-Vinyl-e-caprolactam is the most favorable intermediate to used in Petroleum Production and Printing Ink. And it is used as a reactive diluent for UV-coatings, inks and adhesives as well as a building block for synthesis of paper coatings. It is the new product of instead of N-vinylpyrrolidone (NVP).