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Chinese Journal of Polymer Science

, Volume 36, Issue 10, pp 1195–1199 | Cite as

Initiation, Development and Stabilization of Cavities during Tensile Deformation of Semicrystalline Polymers

  • Ying Lu
  • Yong-Feng Men
Article

Abstract

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.

Keywords

Cavitation Deformation Polymer Polubutene-1 Spherulite 

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Notes

Acknowledgments

This work was financially supported by the National Natural Science Foundation of China (Nos. 51525305 and 21134006), and the Newton Advanced Fellowship of Royal Society (No. NA150222). We thank Dr. Bijin Xiong for his assistance during USAXS experiments.

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Copyright information

© Chinese Chemical Society, Institute of Chemistry, Chinese Academy of Sciences and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchunChina
  2. 2.University of Science and Technology of ChinaHefeiChina

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