期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 134, 期 20, 页码 -出版社
WILEY
DOI: 10.1002/app.44712
关键词
finite element analysis; interface; microfibrillar composites; nanofillers
资金
- Czech Science Foundation [13-15255S]
Nanofillers (NF) in microfibrillar composites support melt-drawing and may lead to improved performance. However, antagonistic effects have also been found. The deterioration of mechanical properties by drawing in the presence of NF, as found by other authors in analogous undrawn systems, has not yet been explained. Experiments indicating the importance of NF migration between the HDPE matrix and the PA6 fibrils in the course of drawing have led to a tentative conclusion of changed crystallinity in the interfacial area resulting in a layer with reduced modulus. This was confirmed by the finite element analysis considering the formation of a soft interface as a result of reduced content of HDPE spherulites at the fiber surfaces. The results show a marked impact of this phenomenon on modulus. This original concept presents a basis for explaining some antagonistic effects in multicomponent polymer systems and a tool for the more rational design of composite materials. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44712.
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