The physics and micro-mechanics of nano-voids and nano-particles in polymer combinations

被引：59
作者：
Michler, Goerg H. [1 ]
von Schmeling, Hans-Henning Kausch-Blecken [2 ]
机构：
[1] Univ Halle Wittenberg, Inst Phys, D-06099 Halle, Germany
[2] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol Lausanne, Inst Mat, CH-1015 Lausanne, Switzerland
来源：
POLYMER | 2013年 / 54卷 / 13期
关键词：
Polymer combinations; Polymer nano-composites; Nano-/micromechanics; Electron microscopy; TOUGHENING MECHANISMS; DEFORMATION MECHANISMS; BLOCK COPOLYMERS; MORPHOLOGY; POLYPROPYLENE; CAVITATION; BEHAVIOR; INTERFACES; TOUGHNESS; FRACTURE;
D O I：
10.1016/j.polymer.2013.03.035
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
In this article the role of voids or particulate inclusions of different sizes on mechanical properties and particularly on toughness in several polymers is discussed. With decreasing void sizes and intervoid distances, the influence of the interphase material around the voids becomes more important and characteristic changes in the nano- and micro-deformation mechanisms appear. These mechanisms are revealed by several techniques of electron microscopy within rubber modified polymers, nanocomposites and nanofibres respectively. Three nanoscopic toughness enhancing mechanisms are described in detail: thin layer yielding, nanovoid-modulated craze-formation, and the core flattening mechanism. The action of these mechanisms constitutes a distinct advantage of nanovoids over microvoids. (c) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3131 / 3144
页数：14
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