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邻苯二甲酸酯类在工业、家庭用具、医药产品、食品包装以及衣着等方面都被广泛使用着,大部分作为增塑剂加入到树脂中,如聚氯乙烯(PVC)中,以使这类塑料具备人们希求的柔韧性和实用性。作增塑剂用得最普遍的邻苯二甲酸酯是邻苯二甲二乙基己酯(DEHP,通常——但错误地——被叫做邻苯二甲酸二辛酯,即DOP)。在塑料配方中也单独地或混合地使用其它的邻苯二甲酸酯。计算增塑剂的量可能占塑料材料最后重量的40%。从化学上来说,酯类都不与聚合物基体相结合,但它们散布在PVC相邻的链之间,实际上起润滑剂的作用。过去对于邻苯二甲酸酯类逸出塑料的性能曾估计过低,原因是它们的水溶性和挥发性都较低。自从发现了这些化合物可能从“惰性的”PVC塑料中逸出以来,邻苯二甲酸酯类就成为普
Phthalates are widely used in industry, household appliances, medical products, food packaging and clothing, and are mostly used as plasticizers in resins such as polyvinyl chloride (PVC) to make this Plastic-like people have the flexibility and practicality. The most common phthalate to be used as a plasticizer is o-diethylhexyl (DEHP, usually - but incorrectly - called dioctyl phthalate, DOP). Other phthalates are also used singly or in combination in plastic formulations. The amount of plasticizer may be calculated as 40% of the final weight of plastic material. Chemically, none of the esters bind to the polymer matrix, but they are interspersed between adjacent chains of PVC and actually act as a lubricant. In the past, the performance of phthalates to escape plastics was underestimated because of their low water solubility and volatility. Since the discovery of these compounds is likely to escape from “inert” PVC plastic, phthalates become the general