Experimental Research on Extrusion Molding Process of UHMWPE Separator
The effects of the extrusion molding process parameters,such as screw speed and screw temperature,on the pressure of the gel and the thickness of the prefabricated film during the wet process of ultra-high molecular weight poly-ethylene(UHMWPE)separator were studied.The results show that as the screw speed increases,the extrusion amount of the gel liquid increases within the same time,leading to an increase in the pressure of the gel liquid.The extrusion expansion rate increases with the increase in shear rate,resulting in more obvious extrusion expansion phenomenon.As the temperature gradient in the melting section increases,the pressure in front of and behind the screen and the thick-ness of the prefabricated film increase,and the thickness and dimensional stability of the product decreases.
万方数据
维普
