Lacquer modification is strictly filtered many times to remove impurities, and activation of normal temperature dehydrating, take the main ingredients of chemical modification of urushiol, namely modified lacquer. Last century, Zeng Weicong first paints such as phenol and formaldehyde condensation reaction of urushiol-formaldehyde resin to be successful, this is an important progress in modification of Chinese lacquer.Urushiol reaction with formaldehyde greater significance is that it is a powerful means of modification of urushiol, aldehyde methylene bridges of urushiol with other active groups together, endows products with unique properties of lacquer can be improved on the drawbacks can be used directly, and can also be used as synthetic intermediates in the process of Chinese lacquer.Some properties of modified Chinese lacquer and natural lacquer as shown in table 1.
번역되고, 잠시 기다려주십시오..
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