An experimental investigation of mixing of carbon nanotube/polymer composite in a batch-type screw mixer

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• 作者：Kyoung Duck Seo (1)
  Jang Min Park (1) (2)
  Hyeonsoo Jeong (1)
  Dong Sung Kim (1)
  
• 刊名：Microsystem Technologies
• 出版年：2014
• 出版时间：February 2014
• 年：2014
• 卷：20
• 期：2
• 页码：243-250
• 全文大小：724 KB
• 作者单位：Kyoung Duck Seo (1)
  Jang Min Park (1) (2)
  Hyeonsoo Jeong (1)
  Dong Sung Kim (1)
  
  1. Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheogam-ro, Nam-gu, Pohang, Gyungbuk, 790-784, Korea
  2. Department of Extreme Thermal Systems, Korea Institute of Machinery and Materials, Gajeongbuk-ro 156, Daejeon, 305-343, Korea
  
• ISSN：1432-1858

文摘

We develop a miniaturized batch-type screw mixer (BSM) for uniform mixing of polymer resin and nanoparticles, based on the stretching of material elements. This stretching is induced by the combination of recirculating cross-sectional flows in deep channels of the screw and high shear stress developed at flight regions. The BSM is used to produce a polymer nano-composite composed of multi-walled carbon nanotubes and polydimethylsiloxane resin. The mixing performance of the BSM is characterized quantitatively by estimating two different types of mixing efficiencies (i.e., dispersive mixing and distributive mixing) via transmitted light microscope images. The developed BSM highly improves the mixing performance rather than that of a conventional ultrasonic mixing device.