Surfactants with hydrophilic-lipophilic balance(HLB)values of 14.9–15.6were found to beuseful in reducing the shrinkage in thickness of the PLLA membrane. Among the surfactants examined,Tween 80 was the best for preparing microfiltration membranes.
Surfactants with hydrophilic-lipophilic balance(HLB)values of14.9–15.6were found to beuseful in reducing the shrinkage in thickness of the PLLA membrane. Among thesurfactants examined,Tween 80 was the best for preparing microfiltration membranes.