A scaling analysis of the fracture mechanisms in glassy polymers

Journal of Polymer Science, Part B: Polymer Physics - Tập 25 Số 2 - Trang 353-368 - 1987
Andrew Alderson1
1Department of Metallurgy and Materials Science, P.O. Box 147, University of Liverpool, Liverpool L69 3BX, England

Tóm tắt

AbstractRecent experimental work on craze growth in polymers has shown that the reptation model for polymer motion may be successfully applied, in certain cases, to the behavior of glassy polymers in the solid phase. In this paper, a simple scaling analysis is presented to show how the primitive path model for reptation may be applied to the behavior of glassy polymers before and during slow crack growth. Different dynamic regimes are identified and related to the relaxation times of the polymer chain. The dependence on polymer chain length for each mechanism is described. Estimates for the fracture energy of each process are presented.

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Tài liệu tham khảo

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Thông tin xuất bản

Journal of Polymer Science, Part B: Polymer Physics

Tập 25 Số 2

353-368

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