▎ 摘　　要

NOVELTY - Lacquer comprises 10-22 pts. wt. silica sol, 18-35 pts. wt. polyacrylamide, 10-17 pts. wt. polyvinyl alcohol, 0.3-1.2 pts. wt. modified graphene, 12-20 pts. wt. high-viscosity attapulgite clay, 6-10 pts. wt. chitosan, 3-12 pts. wt. carboxymethyl cellulose, 5-13 pts. wt. nano-alumina, 5-9 pts. wt. nano titanium dioxide, 8-15 pts. wt. filler, 1-5 pts. wt. defoamer and water (balance amount). USE - The lacquer is useful for waterproof anti-shedding wood (claimed). ADVANTAGE - The lacquer: has anti-cracking effect; and is easy to coating, safe and environmentally friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing lacquer, comprising (i) adding polyacrylamide and polyvinyl alcohol into reactor, adding water, mixing, heating to 60-80 degrees C, then adding certain amount of modified graphene to the reactor, stirring and reacting for 2-3 hours to obtain reaction product a1, (ii) silica sol, chitosan and carboxymethyl cellulose into reaction product a1, stirring and reacting for 0.5-1 hours and cooling to obtain product a2, and (iii) mixing the product a2 obtained in step (ii) with high-viscosity attapulgite clay, nano-alumina, nano-titanium dioxide, filler and antifoaming agent and stirring and then transferring mixture to shearer with a shear rate of 1000-2000 revolutions/minute for 10-30 minutes to obtain final product.