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PP/PE共混物的声发射和断裂行为
引用本文:叶林忠,冯少华,杨连琪,贾军,李德和.PP/PE共混物的声发射和断裂行为[J].青岛科技大学学报,1989(1).
作者姓名:叶林忠  冯少华  杨连琪  贾军  李德和
作者单位:青岛化工学院高材系,青岛化工学院高材系,青岛化工学院高材系,青岛化工学院高材系,青岛化工学院高材系
摘    要:本文考察了不同共混比的 PP/PE 试样单轴拉伸时的声发射现象,探讨了共混比、拉伸速率对声发射的影响。用扫描电镜和光学显微镜观察了取向结构及微裂纹的形态,提出了这类共混物在拉伸时应力分布存在“趋表效应”、断裂是流变断裂的观点。

关 键 词:声发射  断裂行为  PP/PE共混物

Acoustic Emission and Fracture Behaviour of PP/PE Composition
Ye Linzhong Feng Shaohua Yang Lianqi Jia Jun Li Dehe.Acoustic Emission and Fracture Behaviour of PP/PE Composition[J].Journal of Qingdao University of Science and Technology:Natutral Science Edition,1989(1).
Authors:Ye Linzhong Feng Shaohua Yang Lianqi Jia Jun Li Dehe
Affiliation:Department of Polymer Material Engineering
Abstract:The acoustic emission and fracture behaviour of the PP/PE compo-sition in elongating,the dependence of the acoustic emission on thePP,/PE composition ratio and elongating rate,the orienting structureand the microcrackee conformation of the sample were through thescanning electronic microscope and the optical microscope.And theconclusion was drawn that the"tend—surface effect"of stress distri-bution exists in the elongated sample and the facture belongs in therheologic fracture.
Keywords:acoustic emission  fracture behaviour  PP/PE composition
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