Poly(L-lactide) and blend of poly(L-lactide) and low density polyethylene

  • Nguyễn Thị Thủy
  • Nguyễn Huy Tùng
  • Bùi Chương

Abstract

Blend of poly(l-lactide) (PLLA) and low density polyethylene (LDPE) were prepared hy melt mixing in order to improve the hrittleness and enhance the impact strength of PLLA. A reactive compatibilizer with glycidyl methacrylate or with maleic anhydride, PE-GMA or PE-MA, was required as a compatibilizer due to the immiscibility hetvi'een PLLA and LDPE. They distribute to reduce the domain size of dispersed phase in blends. The presence of PE-GMA made increase considerably properties of blend: the tensile and impact strength increased in turn 22% and 35%; especially, the elongation increased 60%c. Contrary to PE-GMA, the properties of blend with PE-MA were almost unchanged. The effect of reactive compatibilizer on morphology of blends was also investigated by using SEM.
điểm /   đánh giá
Published
2011-12-08
Section
Articles