Influence of poly(butylenes adipate-co-terephthalate) on the properties of the biodegradable composites based on ramie/poly(lactic acid)
writer：Tao Yu, Yan Li
keywords：A. Polymer-matrix composites (PMCs)， B. Mechanical properties，B. Thermal properties
source：期刊
specific source：Composites Part A. 2014, 58: 24-29
Issue time：2014年
Ramie/poly(lactic
acid) (PLA) composites were prepared by using two-roll mill. Poly(butylenes adipate-co-terephthalate)
was added into the composites, and the effect of PBAT on the mechanical
properties and thermal properties of the composites was investigate. The tensile
and flexural strength decreased with the increase of PBAT content, and the
addition of a small amount of PBAT increased the impact toughness. Microscopic
study of the fracture surfaces revealed deteriorated interfacial adhension
between the fiber and the matrix in presence of PBAT. DSC results showed that
PBAT lead the glass transition temperature (Tg) and the percentage
crystallinity (Xc) decrease. Thermogravimetric analysis (TGA)
thermograms showed improved thermal stability as compared with ramie/PLA
composites.