如何选择氟弹性体?

氟弹性体可按以下方式划分。

A.治疗系统
B. Monomers
C.应用程序

对固化系统来说,一般有两种方法:双酚固化 FKM 以及过氧化氢可固化的FKM。可固化FKM通常具有低压缩集的特点,用于成型密封件如奥林、垫圈、不规则环、型材等。可固化过氧化氢FKM具有较好的抗化学性和机械性能。它对蒸汽有很大的抵抗力.它可以用于智能可穿戴或锂电池。

对单体而言,共聚物是由偏氟乙烯(Vdf)和六氟丙烯(HFP)制成的;三元聚合物是由偏氟乙烯(Vdf)、四氟乙烯(TFE)和六氟丙烯(HFP)制成的。FKM共聚物含氟量为66%,可广泛应用。FKM三元聚合物含氟量约为68%,可在恶劣环境中使用,需要较好的耐化学/介质性。

应用方面,富迪供应成型,日历,挤出等级FKM。此外,我们还提供特殊的产品,如低温耐热性、高含氟量、70%含氟量、水蒸气耐碱性、高耐化学性、全氟弹性体的FFKM等。

FKM的相应等级

How to choose fluoroelastomer?

Fluoroelastomer can be divided in following ways.

A. Curing system
B. Monomers
C. Applications

For curing system, there are general two ways: Bisphenol curable fkm and peroxide curable fkm. Bishpenol curable fkm usually owns the features of low compression set, which is used for molding sealing parts like orings, gaskets, irregular rings, profiles. And Peroxide curable fkm has better chemical resistance and mechanical properties. It has great resistance to steam. It can be used in smart wearables or Lithium battery.

For monomers, there are copolymer which is made by Vinylidene fluoride (VDF) and hexafluoropropylene (HFP); and terpolymer which is made by Vinylidene fluoride (VDF), tetrafluoroethylene (TFE) and hexafluoropropylene (HFP). FKM copolymer has 66% fluorine content can be used in general application. While fkm terpolymer has fluorine content about 68%, it can be used in harsh environment which requires better chemical/ media resistance.

For applications, FUDI supply molding, calendaring, extrusion grades fkm. And we also supply special grades like low temperature resistance grade GLT, high fluorine content with fluorine content 70%, steam and alkali resistance grade FEPM Aflas, excellent chemical resistance grade perfluoroelastomer ffkm.

FUDI Equivalent grade of FKM