摘要
Photochromic wood was fabricated by coating microencapsulated photochromic material(MP)/polydimethylsiloxane composites onto wood using a simple drop-coating method.Urea-melamine–formaldehyde resin was used to microencapsulate the photochromic material(PM)via in situ polymerization.The concentration of the MP affected the photochromic property of the wood surface.The total color change(ΔE*)reached 82.2 when the concentration of the composite coating is 8%.Adhesion tests confirmed that the composite coating adhered firmly to the wood.This method is potentially useful for the production of functional wooden products,such as anti-counterfeiting materials and aesthetic wood.
基金
financially supported by the National Natural Science Foundation Youth Fund of China(31800489)
the Special Fund for Research on Scientific and Technological Innovation Talents in Harbin(2017RAQXJ092)
Natural Science Foundation of Heilongjiang Province of China(LH2019E070)
Postdoctoral Science Foundation funded project of Heilongjiang Province of China(LBH Z16007)。
