树脂
近义词与同义词
按词义分组列出，使用时请结合具体语境。
any of a class of solid or semisolid viscous substances obtained either as exudations from certain plants or prepared by polymerization of simple molecules
translucent brittle substance produced from pine oleoresin; used especially in varnishes and inks and on the bows of stringed instruments
a hard copal derived from an African tree
基本解释
为无定形的半固体或固体有机物质。分子量较大。不溶于水而溶于醇、醚、酮等有机溶剂中。加热后变软。分天然的和合成的两类。天然树脂如松香、琥珀、虫胶等，大多来自植物或动物∠成树脂由各种单体聚合(包括缩聚)或由天然高分子化合物经化学加工而得，种类很多，性能优良，已取代天然树脂。广泛用于制造涂料、黏合剂、绝缘材料、合成纤维和塑料等。