The chemical analysis of Southeast Asian lacquers collected from forests and workshops in Vietnam, Cambodia, and Myanmar

Urushiol modified epoxy acrylate as UV spray painting oriental lacquer ink

“…9,10 Therefore, the oriental lacquer is oen modied to make up for its natural defects and improve its performance. [11][12][13] At present, the modication of oriental lacquer is mainly to extract the lacquer phenols and modify the reaction with compounds to improve the physicochemical properties of the oriental lacquer lm. The modication methods oen used for oriental lacquer are lacquer phenol modied resin, hydrophilic modication, compound modication, nano-modication, UV curing, etc.…”

Optimising the analysis of Anacardiaceae (Asian lacquer) polymers using pyrolysis-gas chromatography-mass spectrometry

“…The distinctive compounds are named thitsiol, which is a mixture of 3-or 4-substituted catechols, 5-substituted resorcinols and 3-substituted phenols with C15 and C17 hydrocarbon chains, or alkylphenyl side chains with C10 or C12 alkyl chain lengths [8,16,17]. Note that the strict geographic categorisation of Anacardiaceae tree distribution, should be referred to as predominant occurrence and usage of lacquer saps in these countries as the situation is more complex with the trees being more widely distributed [18,19], as reviewed to date (2021) by Tamburini [10].…”

Kinetics of thermal degradation of raw lacquer enhanced by formaldehyde urea prepolymer

“…Urushiol, the main ingredient of lacquer, is a catechol derivative with three different side chain structures 11 – 14 . Urushiol obtained from Rhus vernicifera grown in China has 15 carbons branch chains at 3 positions of the catechol ring 15 – 17 . Laccase is a phenoloxidase, a protein with four copper ions born in lacquer tree, which catalyzes the oxidation of urushiol through redox interactions between Cu (II) and Cu (I).…”