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聚四氟乙烯(Polytetrafluoroethylene,PTFE),国外商品名有“特氟隆”(Teflon)等,是一种新型的热塑性氟塑料,具有优良的综合性能,如耐高、低温(可在—180～+250℃范围内长期使用),具有很好的化学稳定性(在较高温度下也不与强酸、强碱起作用)、润滑牲、电绝缘性等,素有“塑料王”之称。在国防、科研及国民经济各部门都有重要用途。我国从1958年开始试制氟塑料,目前已生产和试制了近10种含氟树指,其中产量最大、用途最广、最具代表性的是聚四氟乙烯。PTFE本身属化学惰性,生物活性极低。曾用含25%PTFE树脂的饲料喂饲大鼠90天;兔每天3g,
Polytetrafluoroethylene (PTFE), the foreign trade name of “Teflon” (Teflon), is a new type of thermoplastic fluoroplastic with excellent overall performance, such as high and low temperature (in -180 ~ + 250 ℃ long-term use), has good chemical stability (at high temperatures nor with strong acid, alkali play a role), lubrication sacrificial, electrical insulation, known as “the king of plastic,” said. In the national defense, scientific research and various departments of the national economy have important uses. Fluorine plastics have been trial-produced in China since 1958. At present, nearly 10 kinds of fluorine-containing tree fingers have been produced and trial-produced. Among them, the largest output and the widest use are the most representative ones, which are polytetrafluoroethylene. PTFE itself is chemically inert, very low biological activity. Rats were fed with 25% PTFE resin for 90 days; rabbits 3g daily,