PPC/PHB 吹塑薄膜的相形态、力学和阻隔性能研究.

PPC/PHB film was prepared by extrusion blow molding. Tbc relationship between morphology and properties of the film was investigated. Results show that tensile strength of PPC/PHB film increased with tbc increase of PI IB content. The longitudinal tensile strength of the film was larger than that of the transverse direction and the transverse right-angle tear strength was slightly higher than that of the longitudinal direction. Both water vapor and oxygen permeability coefficients of the film decreased with the increasing PI IB content, which indicated that the water blocking and oxygen harrier properties were improved. Oxygen permeability coefficient of PPC/PHB film with 30 wt% PUB was 5 times of that for pure PPC. Frickc and Nielsen model were used to calculate the barrier properties of PPC/PHB film and effects of morphology on harrier property for PPC/PHB films were analyzed. [ABSTRACT FROM AUTHOR]