aging stability

Utilizing heat aging experiments, thermal analysis technique, X-ray diffraction etc, this article investigates stability and crystal properties of polyaniline/ poly ( vinyl alcohol) films.

利用热老化实验、热分析技术、X-射线衍射等考察了聚苯胺/聚乙烯醇复合膜的稳定性能和结晶性能；

PTFE ( polytetrafluoroethylene) is the fluorinated straight-chain polymer, made by the polymerization of tetrafluoroethylene monomer, it is widely used in various fields because of some excellent performance, such as chemical stability, aging resistance and thermal stability.

聚四氟乙烯（polytetrafluoroethylene，简称PTFE）为全氟化直链高聚物，由四氟乙烯单体（TFE）聚合制得，具有化学稳定性、耐老化性和热稳定性等优良性能，因此被广泛应用于各个领域。