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Dispersion of Single-Walled Carbon Nanotubes in Water by a Conjugated Surfactant Mingxian Liu1, a, Zhixin Jia2, b, and Changren Zhou1,c 1Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China 2Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China aliumx@jnu.edu.cn, bjzhixin@163.com, ctcrz9@jnu.edu.cn Keywords: carbon nanotubes, dispersion, nanohybrids, conjugated molecules, surfactant Abstract.
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Conclusion The sound absorption and isolation characteristics of PTFE Micro-aperture Membrane are almost the same with ordinary materials.
For example, characteristic of impedance is analogous to air, and sound absorption coefficient of Membrane is smaller than other materials, which leads to poor absorption characteristic.
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The rigid visco-plastic FEM is the main numerical simulation method in the metal bulk forming and its basic equation is based on the Euler coordinate system.The basic assumption of the rigid visco-plastic flow theory is[4,5]: ignoring the elastic deformation of the material and the quality stress and the inertia force; the materials in even quality and having the same character of their directions; the volume of the material not changing; the materials abiding by the Mises yield criterion and strengthening at the same direction; the rigid-plastic material changing only on strain hardening while the rigid visco-plastic changing on both the strain hardening and strain-rate hardening simultaneously.
Acknowledgements This work was financially supported by the Chongqing Science and Technology Key Project Fund (No:CSTC, 2010AC6082) and Chongqing Education Commission Technology Study Project Fund (No: KJ101405).
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