Understanding Anisotropic Conducting Adhesive Behaviour

1995 ◽  
Vol 12 (2) ◽  
pp. 55-59 ◽  
Author(s):  
J.M. Goward ◽  
D.C. Whalley ◽  
D.J. Williams
Keyword(s):  
Anisotropic Conducting

Electrical conductivity of carbon nanotube/polypropylene composites prepared through microlayer extrusion technology

2017 ◽  
Vol 37 (8) ◽  
pp. 795-804 ◽  
Author(s):  
Changjin Li ◽  
Zhiwei Jiao ◽  
Liangzhao Xiong ◽  
Weimin Yang
Keyword(s):  
Electrical Conductivity ◽  
Polymer Matrix ◽  
Rotation Speed ◽  
Mapping Method ◽  
Degree Of Crystallinity ◽  
Polypropylene Composites ◽  
Multilayered Composites ◽  
Promising Application ◽  
Anisotropic Conducting ◽  
Extrusion Technology

Abstract The morphological distribution of carbon nanotubes (CNTs) in polymer matrix has a crucial impact on the performance of CNT-filled polymer composites. A novel microlayer extrusion technology used in the dispersion and orientation of CNTs was proposed, and polypropylene (PP)/multiwalled CNT (MWCNT) composites with different numbers of layers were prepared with it. The MWCNT dispersion was investigated by scanning electron microscopy and Raman mapping method, and the MWCNT orientation was quantified by Raman spectroscopy. The influences of the dispersion and orientation of MWCNTs on the electrical conductivity and crystallization behavior of the composites were investigated. The results showed that the anisotropic conducting properties of the multilayered composites varied distinguishably with the increase of layer numbers and rotation speed. Furthermore, the degree of crystallinity of PP increased when the layer number increased from 1 to 729. All of these results suggest that with the increase of the layer numbers and the rotation speed, the dispersion and orientation of MWCNTs in PP matrix improve greatly. Overall, we provide an efficient and practical approach to control the dispersion and orientation of CNT in polymer matrix, which has a promising application prospect in the field of plastic processing.

A novel anisotropic conducting thin film having a conducting and insulating layered structure

1988 ◽  
Vol 160 (1-2) ◽  
pp. 67-79 ◽  
Author(s):  
Takeo Shimidzu ◽  
Tomokazu Iyoda ◽  
Masanori Ando ◽  
Akira Ohtani ◽  
Takehira Kaneko ◽  
...  
Keyword(s):  
Thin Film ◽  
Layered Structure ◽  
Anisotropic Conducting

Anisotropic conducting adhesives for electronic assembly

1997 ◽  
Vol 17 (1) ◽  
pp. 66-74 ◽  
Author(s):  
David C. Whalley ◽  
Samjid H. Mannan ◽  
David J. Williams
Keyword(s):  
Electronic Assembly ◽  
Anisotropic Conducting

Modeling anisotropic conducting surfaces by strip structures

1992 ◽  
Vol 3 (3) ◽  
pp. 318-322
Author(s):  
E. V. Zakharov ◽  
E. V. Nikitina
Keyword(s):  
Anisotropic Conducting

MAGNETOTELLURIC RESPONSE OF LATERALLY INHOMOGENEOUS AND ANISOTROPIC MEDIA

Geophysics ◽  
1975 ◽  
Vol 40 (6) ◽  
pp. 1035-1045 ◽  
Author(s):  
I. K. Reddy ◽  
D. Rankin
Keyword(s):  
Field Measurements ◽  
Complex Model ◽  
Dimensional Structure ◽  
Impedance Tensor ◽  
Two Dimensional ◽  
Galerkin Finite Element Method ◽  
Galerkin Finite Element ◽  
The Earth ◽  
Lateral Inhomogeneity ◽  
Anisotropic Conducting

The lack of agreement between magnetotelluric field measurements and the calculations based on essentially two‐dimensional models with either anisotropy or lateral inhomogeneity necessitates a more complex model of the earth than has been previously considered. The Galerkin finite‐element method is applied to a two‐dimensional structure with a tensor conductivity. The importance of considering conductivity as a tensor is illustrated by a model consisting of an anisotropic, conducting dike embedded in an anisotropic half‐space. This model can be distinguished from an isotropic model by the nonvanishing diagonal elements of the impedance tensor, the ellipticity indices, and the skew.

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