Preparation of Binary Conductive Polymer Composites with Very Low Percolation Threshold by Latex Blending
✍ Scribed by Ji Wen Hu; Ming Wei Li; Ming Qiu Zhang; Ding Shu Xiao; Gen Shui Cheng; Min Zhi Rong
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 101 KB
- Volume
- 24
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Abstract
The communication reports a way to prepare carbon black (CB)/waterborne polyurethane conducting composites with percolation thresholds as low as 0.2 vol.‐% through conventional latex blending. CB particles in the composites appear segregated in their distribution and are located in the two‐dimensional interstices among the polymer domains. The intimate filler/matrix interaction also improves the tensile strength of the matrix at the CB content corresponding to the electrical percolation threshold.
Room temperature conductivity, σ, and tensile strength as a function of carbon black (CB) concentration of the waterborne‐polyurethane‐based composites prepared by latex blending.
magnified imageRoom temperature conductivity, σ, and tensile strength as a function of carbon black (CB) concentration of the waterborne‐polyurethane‐based composites prepared by latex blending.