Modified environment-friendly bamboo-wood fiber board composite glue and preparation method thereof

• Main Authors: LI RENHONG, LUO BIN, ZHONG YUANHUI
• Format: Patent
• Language: Chinese; English
• Published: 10.03.2020
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

Modified environment-friendly bamboo-wood fiber board composite glue includes, by weight, 30-50 parts of neo-pentyl glycol/phthalic anhydride, 10-20 parts of polypropylene oxide glycol, 10-20 parts ofpolycaprolactone diol, 5-15 parts of polycarbonate diol, 8-18 parts of diphenylmethane diisocyanate, 0.1-0.5 parts of dibutyltin dilaurate, 1-2 parts of trimethylolpropane, 1-3 parts of 1,4-butanediol, 80-150 parts of ethyl acetate, 50-80 parts of tackifying resin, 75-120 parts of dimethyl carbonate, and 10-25 parts of an isocyanate curing agent. In the invention, a compound glue liquid is generated through a reaction of the neo-pentyl glycol/phthalic anhydride, polypropylene oxide glycol, polycaprolactone diol, polycarbonate diol, diphenylmethane diisocyanate, dibutyltin dilaurate, trimethylolpropane, 1,4-butanediol, and ethyl acetate; by means of the tackifying resin, the composite glue keeps high crystallization rate and high cohesion strength and also has high flexibility and immersibility. The invention succ