Polymer Engineering Faculty Research

X-ray studies of structural development during sequential and simultaneous biaxial stretching of polylactic acid film

Mukerrem Cakmak


Cast unoriented Polylactic acid(PLA) films were biaxially stretched in both sequential and simultaneous modes to a series of stretch ratios and were then subsequently annealed to induce higher crystallinity and dimensional stability. Wide angle X-ray scattering analysis of these as stretched and annealed films were carried out to assess the effect of stretching mode on development of crystal structure and orientation during stretching and annealing processes.