a.State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
b.University of Science and Technology of China, Hefei 230026, China
men@ciac.ac.cn
收稿:2018-01-10,
修回:2018-1-10,
录用:2018-2-5,
网络首发:2018-03-21,
纸质出版:2018-10
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Citation: Lu, Y.; Men, Y. F. Initiation, Development and Stabilization of Cavities during Tensile Deformation of Semicrystalline Polymers. Chinese J. Polym. Sci. 2018, 36(10), 1195–1199.
Ying Lu, Yong-Feng Men. Initiation, Development and Stabilization of Cavities during Tensile Deformation of Semicrystalline Polymers[J]. Chinese Journal of Polymer Science, 2018, 36(10): 1195-1199.
Citation: Lu, Y.; Men, Y. F. Initiation, Development and Stabilization of Cavities during Tensile Deformation of Semicrystalline Polymers. Chinese J. Polym. Sci. 2018, 36(10), 1195–1199. DOI: 10.1007/s10118-018-2123-x.
Ying Lu, Yong-Feng Men. Initiation, Development and Stabilization of Cavities during Tensile Deformation of Semicrystalline Polymers[J]. Chinese Journal of Polymer Science, 2018, 36(10): 1195-1199. DOI: 10.1007/s10118-018-2123-x.
By using polybutene-1 as a typical example
we illustrate the initiation
development and stabilization of cavities in the sample during tensile deformation. Samples with the same crystallinity
long spacing and crystalline lamellar thickness but very different sizes of spherulites were prepared
via
changing the melt history. Dimension of cavities during stretching the samples was determined by
in situ
ultra small angle X-ray scattering techniques. It turned out that the size of the cavities was bigger in the sample with larger spherulites than the one with smaller spherulites. The results show clear evidence of initiating cavities within crystalline phase at the grain-boundary of crystalline blocks
growing of cavities passing through parallel stacked lamellar crystals and amorphous layers and finally stablized by tilted lamellae at both ends of the plate-like cavities within the spherulites.
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