PUR hot melt adhesive introduction

PUR (Polyurethane Reactive), Chinese called the moisture curing reactive polyurethane hot melt adhesive. Is the main component of isocyanate terminated polyurethane prepolymer. After heating at high temperature stats, PUR adhesive molecules with air or glued on the water or the active hydrogen substances react to form cross-linked network structure, the bonding strength, chemical resistance, heat resistance, hydrolysis resistance is better than general hot melt adhesive. PUR adhesion and toughness (elastic) can be adjusted, with ordinary hot melt thermoplastic cold bonding performance, simple operation, wide range of material properties, gel adjustable. PUR adhesive is ammonia ester containing polar and chemical reactivity in the molecular structure of (-NHCOO-) or isocyanate (-NCO), and containing active hydrogen material, such as wood, leather surface, fabric, paper, ceramics and other porous materials and plastic, metal, glass, rubber and other materials are clean excellent adhesion. In recent years, has become one of the most important varieties of adhesive industry, is now widely used in wood processing, packaging, automotive, textile, machinery, aerospace and other fields of national economy.