Ultrathin Wood Laminae–Thermoplastic Starch Biodegradable Composites  

作　　者：Andrea Dorigato Martino Negri Alessandro Pegoretti 

机构地区：[1]University of Trento,Department of Industrial Engineering and INSTM Research Unit,Via Sommarive 938123 Trento,Italy [2]Trees&Timber Institute,CNR IVALSA,I-38010 San Michele all’Adige,Trento,Italy

出　　处：《Journal of Renewable Materials》2018年第5期493-503,共11页可再生材料杂志（英文）

摘　　要：Novel fully biodegradable thermoplastic composite laminates reinforced with ultrathin wood laminae were prepared through a hot-pressing process by using two different thermoplastic starch(TPS)matrices.The microstructure and physical properties of the resulting unidirectional and bidirectional laminates were studied.The investigated materials presented a complex microstructure,in which the porosity of the wood laminae was almost entirely occluded by the polymer matrix.The mechanical behavior of the laminates was strongly affected by the obtained microstructure,and matrix penetration in wood pores led to biodegradable composites with elastic modulus and tensile strength higher than those of their constituents.Finally,thermal welding and thermoformability tests proved how these materials possess features typical of thermoplastic materials.

关 键 词：STARCH ultrathin wood laminae COMPOSITES mechanical properties 

分 类 号：TB3[一般工业技术—材料科学与工程]