通过DPD模拟研究了不同刚度对等规聚丙烯与多孔氧化铝界面破坏行为的影响

IF 4 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Yoshitake Suganuma, James A. Elliott
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引用次数: 0

摘要

本文研究了由等规聚丙烯(iPP)和多孔表面组成的聚合物-金属氧化物键合界面,并使用耗散粒子动力学(DPD)方法研究了聚合物组分的刚度对界面抗拉强度的影响。我们的计算表明,即使在界面破坏中,iPP组件刚度的增加也会导致多孔氧化铝的抗拉强度增加。在多孔表面观察到的拉伸破坏模式是由iPP组分沿孔壁滑动引起的。杨氏模量越高的iPP构件在拉伸试验中抗变形能力越强,使得界面应力难以达到导致滑移的临界应变,从而导致粘结界面抗拉强度的提高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of varying stiffness on the interfacial failure behavior of isotactic polypropylene and porous alumina studied via DPD simulation
This work studies a polymer–metal oxide bonded interface consisting of isotactic polypropylene (iPP) and a porous surface, and examines the impact of the stiffness of the polymeric component on the tensile strength of the interface using the dissipative particle dynamics (DPD) method. Our calculations reveal that an increase in the stiffness of iPP component leads to an increased tensile strength on the porous alumina even in an interfacial failure. The tensile failure mode observed on the porous surface is caused by the slippage of iPP component along the pore walls. An iPP component with a higher Young’s modulus is more resistant to deformation during tensile tests, which makes it difficult for the interfacial stress to reach the critical strain for the slippage, and thus results in an increased tensile strength of the bonded interface.
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来源期刊
CiteScore
7.10
自引率
9.80%
发文量
58
审稿时长
44 days
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