The comparison of the charge storage lifetime was studied among the porous PTFE and those typical electret materials that are Teflon PTFE, Teflon FEP, Aclar PCTFE and Kapton PI f.

A dual initiator system for rapid cure SMC processing was developed and an optimum recipe of the dual initiator system was obtained by investigating the effects of initiator types and their proportions on the cure and shelf life of SMC paste,with the balance of curing time and shelf life of SMC paste achieved.

By statistical analysis of the test data, the shelf life distribution rule is studied, an estimate model for the shelf life is established, and the average value and the low confidence limits of the shelf life at storage temperature is predicted.

Storage Life Evaluation of Rigid PU Foam by WLF Equation;

Storage life prediction for HTPB propellant under constant strain;

Study on the storage life of Li_x (M)/FeS_2 thermal battery;

We introduce the experiment about accelerated ageing and mechanical capability of O shape ring Silicon-rubber in the engine,and calculate its storage life in terms of experimental data.

Surface potential is characterized as a parameter to evalue charge storage capacity, and half value temperature ( T 1/2 ) of thermal stimulated charge decay(TSCD) is an indicator of charge storage stability.

The simulation results indicate that the SiGe/Si heterojunction switching power diodes have low forward voltage drop,low stored charge and the performance is much better than the similar.