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Preparation and Properties of Nano-Calcium Carbonate Modified PVC Using Ultrasonic Irradiation

[+] Author Affiliations
Shengfei Hu

Wuhan University of Technology, Wuhan, China; Hubei University of Technology, Wuhan, China

Wen Chen

Wuhan University of Technology, Wuhan, China

Huaxing Li

Hubei University of Technology, Wuhan, China

Paper No. MNC2007-21449, pp. 1477-1481; 5 pages
doi:10.1115/MNC2007-21449
From:
  • 2007 First International Conference on Integration and Commercialization of Micro and Nanosystems
  • First International Conference on Integration and Commercialization of Micro and Nanosystems, Parts A and B
  • Sanya, Hainan, China, January 10–13, 2007
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4265-7 | eISBN: 0-7918-3794-7
  • Copyright © 2007 by ASME

abstract

PVC/nano-CaCO3 composites were prepared through ultrasonic irradiation. The optimum time of ultrasonic irradiation is 30 min. The fracture toughness of the nanocomposites was investigated by J-integral method based on the mechanical properties and morphology. Compared with corresponding nanocomposites and unfilled PVC, the prepared nanocomposites exhibit outstanding mechanical performances. The mechanical properties of spindly shaped CaCO3 filled PVC are better than these of the cubic nano-CaCO3 , which are likely attributed to high aspect ratio of spindly shaped nano-CaCO3 . In addition, the mechanical properties of PVC/nano-CaCO3 composites can be improved considerably when the content of nano-CaCO3 is 5–15 phr. Ultrasonic irradiation realizes the excellent dispersion of nanoparticles in the PVC, and offers a new way to deal with the challenges encountered in preparing polymer/nanocomposites materials.

Copyright © 2007 by ASME

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