The rheological properties of poly(lactic acid) (PLA), PP and LDPE were studied as a function of temperature, shear rate and warm-up time.The results confir
Lithium secondary batteries are one of the most promising electrochemical power sources used in portable electronic devices, electric vehicles (EVs) and sta
The calculation of diffusion coefficient has a very important significance to the formation of the as-spun fiber[1].In our present work, Poly (amic acid) (P