聚四氟乙烯早在34年前就偶然地被发现了。它具有许多独特的性能:化学惰性及抗腐蚀性,一个绝对低的摩擦系数,不粘性以及在相当高温(250℃)时的热稳定性。虽然这些性能将使工业界乐于使用这种聚合体,但对它在适当应用上的延迟,可能是由于它的成本高、难以加工以及一些不可预期的性能倾向。由于采用了较好的铸模术及改良的粉末法,加工方面的困难已大部分解决了。但聚 Teflon was accidentally discovered as early as 34 years ago. It has many unique properties: chemical inertness and corrosion resistance, an absolutely low coefficient of friction, no tackiness and thermal stability at very high temperatures (250 ° C). While these properties will make the industry happy to use this polymer, the delay in its proper application may be due to its high cost, difficult processing, and some unexpected performance tendencies. As a result of the use of better mold technology and improved powder method, the processing difficulties have largely been solved. But together