Melt viscosity or melt processability?

Question

what is the melt viscosity of PTFE, ETFE, poly carbonate and float glass

i need ur information to be sourced. thank you

Answer 1

Low melt viscosity polytetrafluoroethylene (PTFE), i.e. having a melt viscosity of 50 to 1 X 10<5> Pa-s at 372 DEG C

PTFE has a melt viscosity of at least 1×108 Pa.multidot.s at

380° C

melt viscosity of ETFE

10 to 100,000 poise at 250° C. under a shear rate of 100 sec-1

melt viscocity of float glass= 10^10 pa.s at 1100 K

poly carbonate mv= 100 at 260K