Investigating morphology and deformation behavior of multilayered PC/PET composites
Investigating morphology and deformation behavior of multilayered PC/PET composites
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研究多层 PC/PET 复合材料的形态和变形行为
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
A. Hiltner
中科院分区：
文献类型：
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作者：
R. Adhikari;W. Lebek;R. Godehardt;S. Henning;G. Michler;E. Baer;A. Hiltner
利用透射电子显微镜（TEM）和扫描力显微镜（SFM）研究了由聚碳酸酯（PC）和聚对苯二甲酸乙二醇酯（PET）交替层组成的共挤出多层膜的形态和微观力学变形行为。发现多层复合材料由具有几乎均匀厚度的组分的宏观对齐的连续层组成。在退火的样品，PET层被发现进行冷结晶，并形成独立于各层的厚度的层状晶体。在拉伸载荷的影响下，复合材料的机械性能被发现是中间的组成均聚物之间。多层复合材料的组分在高应变下以均匀的方式变形，而不形成局部变形区。版权所有© 2005年约翰威利父子有限公司。
Using transmission electron microscopy (TEM) and scanning force microscopy (SFM), this work deals with morphology and micromechanical deformation behavior of coextruded multilayers comprising alternating layers of polycarbonate (PC) and polyethylene terephthalate (PET). The multilayered composites were found to consist of macroscopically aligned continuous layers of the constituents having nearly uniform thickness. On annealing the samples, the PET layers were found to undergo cold-crystallization and to form lamellar crystals independent of thickness of individual layers. Under the influence of tensile loading, mechanical properties of the composites was found to be intermediate between that of the constituent homopolymers. The components of the multilayered composites deformed in homogeneous manner at high strains without forming localized deformation zones. Copyright © 2005 John Wiley & Sons, Ltd.