The Processing and Electrical Properties of Isotactic Polypropylene/Copper Nanowire Composites

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dc.contributor.authorLu, Po-Wen
dc.contributor.authorJaihao, Chonlachat
dc.contributor.authorPan, Li-Chern
dc.contributor.authorTsai, Po-Wei
dc.contributor.authorHuang, Ching-Shuan
dc.contributor.authorBrangule, Agnese
dc.contributor.authorZarkov, Aleksej
dc.contributor.authorKareiva, Aivaras
dc.contributor.authorWang, Hsin-Ta
dc.contributor.authorYang, Jen-Chang
dc.contributor.institutionDepartment of Pharmaceutical Chemistry
dc.date.accessioned2022-09-26T10:50:02Z
dc.date.available2022-09-26T10:50:02Z
dc.date.issued2022-08-18
dc.descriptionFunding Information: The authors would like to thank MOST for financially supporting this work under grant No. MOST 110-2224-E-038-001. Publisher Copyright: © 2022 by the authors.
dc.description.abstractPolypropylene (PP), a promising engineering thermoplastic, possesses the advantages of light weight, chemical resistance, and flexible processability, yet preserving insulative properties. For the rising demand for cost-effective electronic devices and system hardware protections, these applications require the proper conductive properties of PP, which can be easily modified. This study investigates the thermal and electrical properties of isotactic polypropylene/copper nanowires (i-PP/CuNWs). The CuNWs were harvested by chemical reduction of CuCl 2 using a reducing agent of glucose, capping agent of hexadecylamine (HDA), and surfactant of PEG-7 glyceryl cocoate. Their morphology, light absorbance, and solution homogeneity were investigated by SEM, UV-visible spectrophotometry, and optical microscopy. The averaged diameters and the length of the CuNWs were 66.4 ± 16.1 nm and 32.4 ± 11.8 µm, respectively. The estimated aspect ratio (L/D, length-to-diameter) was 488 ± 215 which can be recognized as 1-D nanomaterials. Conductive i-PP/CuNWs composites were prepared by solution blending using p-xylene, then melt blending. The thermal analysis and morphology of CuNWs were characterized by DSC, polarized optical microscopy (POM), and SEM, respectively. The melting temperature decreased, but the crystallization temperature increasing of i-PP/CuNWs composites were observed when increasing the content of CuNWs by the melt blending process. The WAXD data reveal the coexistence of Cu 2O and Cu in melt-blended i-PP/CuNWs composites. The fit of the electrical volume resistivity (ρ) with the modified power law equation: ρ = ρ o (V - Vc) -t based on the percolation theory was used to find the percolation concentration. A low percolation threshold value of 0.237 vol% and high critical exponent t of 2.96 for i-PP/CuNWs composites were obtained. The volume resistivity for i-PP/CuNWs composite was 1.57 × 10 7 Ω-cm at 1 vol% of CuNWs as a potential candidate for future conductive materials.en
dc.description.statusPeer reviewed
dc.format.extent4614329
dc.identifier.citationLu, P-W, Jaihao, C, Pan, L-C, Tsai, P-W, Huang, C-S, Brangule, A, Zarkov, A, Kareiva, A, Wang, H-T & Yang, J-C 2022, 'The Processing and Electrical Properties of Isotactic Polypropylene/Copper Nanowire Composites', Polymers, vol. 14, no. 16, 3369. https://doi.org/10.3390/polym14163369
dc.identifier.doi10.3390/polym14163369
dc.identifier.issn2073-4360
dc.identifier.otherPubMedCentral: PMC9414673
dc.identifier.urihttps://dspace.rsu.lv/jspui/handle/123456789/9571
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85137540488&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofPolymers
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subject1.4 Chemical sciences
dc.subject3.4 Medical biotechnology
dc.subject1.1. Scientific article indexed in Web of Science and/or Scopus database
dc.titleThe Processing and Electrical Properties of Isotactic Polypropylene/Copper Nanowire Compositesen
dc.type/dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article

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