紫胶虫吸取寄主树树液后分泌出的紫色天然树脂。又称虫胶、赤胶、紫草茸等。主要含有紫胶树脂、紫胶蜡和紫胶色素
关键词：紫胶；酚醛树脂胶粘剂；固化时间；粘接强度；甲醛释放 [gap=6959]Keywords：lac；PF resin adhesive；curing time；adhesive strength；formaldehyde emission
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紫胶恰巧还是一种有效的绝缘物。
Shellac also happened to be an effective electrical insulator.
紫胶虫用粘性排泄物作为停留在它所生存的树上的手段。
The Kerria lacca uses the sticky excretion as a means to stick to the trees on which it lives.
试验结果表明，混合溶剂较单一溶剂对紫胶的溶解性能好，胶液粘度低，漆膜干燥快。
It has shown that mixed solvent is more effective for the shellac than single solvent resulting in a low viscous solution and fast dry film.
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