What is the delamination phenomenon of Teflon high-temperature fabric?
This article covers the delamination phenomenon of Teflon high-temperature fabric. Delamination refers to separation and peeling between surface PTFE coating and internal fiberglass base fabric or between multiple coating layers. Visual manifestations: blistering/bulging (raised bubbles with hollow feel) as early signs; interlayer peeling with coating easily removed in sheets exposing white fiberglass; localized whitening followed by flaking after heat/friction. Main causes: Thermal stress damage — differing thermal expansion coefficients between PTFE and fiberglass create internal stress, rapid heating/cooling cycles cause detachment; Production quality defects — inadequate fiberglass surface treatment, poor PTFE impregnation, insufficient sintering causing weak interfacial bonding.
