What is the coefficient of linear expansion of PTFE?

Update:29 Dec 2018

PTFE Polytetrafluoroethylene (abbreviated as teflon, co […]


Polytetrafluoroethylene (abbreviated as teflon, commonly referred to as "non-stick coating" or "easy to clean materials." This material is resistant to acids and alkalis, resistant to various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, and its friction coefficient is extremely low, so it can be used as a lubricant to clean the inner layer of the water pipe.

Linear expansion coefficient of PTFE

The linear expansion coefficient of PTFE is not the same in different temperature ranges, about 10-40*10 to the power of -4, the linear expansion coefficient of PTFE is 10~20 times that of steel, which is larger than most plastics, and its linear expansion coefficient increases with temperature. The changes occur very irregularly. When using PTFE, if the performance of this aspect is not enough, it is easy to cause losses.