SINGLE-COMPONENT SOLVENT-FREE ANTI-SAGGING POLYURETHANE WATERPROOF COATING, PRODUCTION SYSTEM, AND PRODUCTION METHOD THEREOF

摘要

Provided are a single-component solvent-free anti-sagging polyurethane waterproof coating, production system, and production method thereof, the components of said polyurethane waterproof coating being, according to parts by weight: 25–50 parts of polyurethane prepolymer, 10–20 parts of heavy filler, 10–20 parts of nanofiller, 0.05–0.2 parts of composite catalyst, 0.1–0.3 parts of physical defoaming agent, 0.1–0.3 parts of chemical defoaming agent, 5–20 parts of plasticizer, 0.1–0.3 parts of dispersant, 0.05–0.2 parts of dehydrating agent, and 2–5 parts of active diluent; the polyurethane prepolymer is formed by reacting 19–72 parts of composite resin diol, 1–10 parts of polyether triol, 0–32 parts of compound isocyanate, and 0.1–0.5 parts of aliphatic amine chain extender. The polyurethane waterproof coating can not only be applied to a vertical face or a sloped surface, has strong anti-sagging performance, and maintains good physical properties, but also enables continuous production and increases operational efficiency.