Lacquer in natural drying at room temperature belong to oxidative polymerization film.
Film formation process is divided into three phases: In the first phase, in the presence of oxygen, urushiol two phenolic hydroxyl groups in the molecule of oxygen and liquid paint paint enzymes, is oxidized to ortho-quinone structure compounds.
Stage 2, further effects laccase, o-quinone compound with each other to grow oxidative polymerization chain or network structure.
Phase 3, further oxidation, polymerization body structure into a network of three-dimensional space.
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