陈诉题目：Engineering the interface between natural fibers and polymer matrices with application to fiber reinforced polymer composite materials，（天然纤维与聚合物基体间的界面设计及其在纤维增强聚合物复合质料领域的应用）

报 告 人： David Seveno教授

報告時間：8月31日9:30-11:30

報告地點：工程樓604資料室

報告內容簡介：

Polymer composites made of natural fibers aim at playing a significant role in the fields of construction, automotive, and aeronautics thanks to their light weight property and reduced content of petro-chemical origins. Natural fibers like flax, hemp, or bamboo fibers show promising results as an alternative to glass fibers as they show descent specific mechanical properties but also good thermal and vibration insulating properties. The interfacial strength between the fibers and the polymer matrix also determines to a large extent the final properties of the materials, i.e. the compatibility between both constituents must be good to guarantee an homogeneous impregnation of the fibers during processing and a final strong adhesion. To predict such compatibility, wetting measurements can be performed but remain difficult to analyze and interpret due the physico-chemical heterogeneities of the fiber surfaces. This talk will present how, in KU Leuven, we circumvent this difficulty by studying natural fibers using a combination of a unique synchronized tensiometer/goniometer and a dynamic wetting apparatus.

亚麻和竹纤维等天然纤维具有优异的机械性能以及隔热减震性能，可作为玻璃纤维的替代产物。天然纤维与基体间的界面性能在相当洪流平上决定了最终质料的各项性能，例如：成型历程中各组分间良好的浸润以及其最终界面良好的结合。对纤维润湿性的表征分析可作为预测这种相容性的有效要领，但是由于天然纤维外貌的物理化学不均一性，使纤维润湿性的表征变得极为困难。该陈诉主要介绍了 KU Leuven大学复合质料课题组如何围绕天然纤维润湿性这一课题，利用奇特的同步Tensiometer/goniometer要领对纤维动态润湿性进行研究分析。

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報告人簡介：

David Seveno教授是资深的复合质料科学领域的专家，目前执教于比利时荷语鲁汶大学质料学院，建设了复合质料的物理化学课题组，专注于纤维与聚合物基体间界面等方面的研究事情，主要研究课题包罗：纤维的润湿性、复合质料界面物理化学作用机理的数值模拟，结合纳米尺度模拟手段预测碳纳米管、细小纤维或石墨烯增强纳米复合质料的高分子网络形成历程及其最终力学性能等。教授已在Physical Review Letters、Carbon等知名杂志发表高水平学术论文近30篇，主持多项国际科研项目。

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生物质料工程學科、高分子质料與工程專業誠摯邀請廣大師生光臨並參與交流！