Polyurethane hot melt adhesive includes pressure-sensitive adhesive and PUR water-based adhesive
Pressure-sensitive adhesive: Hot-melt adhesive pressure-sensitive adhesive is a type of pressure-sensitive adhesive, mainly composed of synthetic rubber and A new type of adhesive tape made by mixing resin and rubber oil and heating it into a molten state and then coating it on tissue paper, cloth or plastic film and other substrates. Its biggest advantage is its low cost. The disadvantage is that the viscosity is affected by temperature. The impact is more obvious. Mainly used for various types of carton sealing, paper packaging, beverage bottle labels, sealing aluminum foil, flexible packaging and other packaging; environmentally friendly paper pallets, etc., adaptable to various materials. Sealing glue is suitable for bonding various types of glazing, polishing, calendering, PP compounding and other PET, PP transparent boxes, films, non-woven products, cosmetic box packaging, food box packaging, cigarette box packaging, Tetra Pak beverage packaging, etc. , assembled furniture edge sealing, electronic industry, automotive interior sealing, car lamp manufacturing, windshield assembly, etc.), non-woven sanitary napkins, diapers, paper diapers, insoles, disposable daily necessities, coated composite trademark paper, labels Double-sided tape, sticky mouse board, fly paper, wooden floor, carpet glue, band-aid, medical breathable tape, color box packaging, carton packaging glue, adhesive-backed hook and loop tape and other difficult-to-stick materials have strong adhesion ; Good thermal stability, no impurities, good operability; Excellent weather resistance; Aluminum foil sealing hot melt adhesive has unique water resistance and waterproof properties.
PUR water-based glue
① Concept: a polymer with free cyanate groups generated by the reaction of diisocyanate and organic compounds containing two or more active hydrogen atoms. Thermosetting materials are mainly generated by the groups contained in them reacting with each other under the action of heat or a certain catalyst, or reacting with water, ethylene glycol, etc.
②Type: hot melt adhesive type, reactive type and moisture curing type;
③Features: not reusable; strong adhesive force; good weather resistance and flexibility; coating Thin layer; expensive
Because this type of hot melt adhesive is widely applicable and has superior performance, the scope of use will become wider and wider, and the demand will grow.