Synergistic effects of conductive carbon nanofillers based on the ultrahigh-molecular-weight polyethylene with uniform and segregated structures
Sun, ZF (Sun, Zhen-Feng)[ 1 ]; Ren, PG (Ren, Peng-Gang)[ 1 ]; Zhang, ZW (Zhang, Zheng-Wei)[ 2 ]; Ren, F (Ren, Fang)[ 1 ]
2019
Source PublicationJOURNAL OF APPLIED POLYMER SCIENCE
ISSN0021-8995
Volume136Issue:14Pages:1-8
Abstract

To discuss the synergistic effects of mixed conductive filler on nanocomposites, different structural carbon nanofiller/ultrahigh-molecular-weight polyethylene (UHMWPE) hybrid nanocomposites with uniform and segregated structure were prepared by using ethanol-assisted dispersion, hydrazine reduction, and hot-pressing methods. Scanning electron microscopy and polarized optical microscopy images of the nanocomposites fracture showed that the complete conductive channels could be formed in segregated nanocomposites prepared by powder mixing method. By contrast, the discontinuous electric path could be observed in the homogeneous nanocomposites prepared by the solution method. The test of conductivity performance demonstrated that the percolation threshold of carbon black (CB)/UHMWPE and multiwalled carbon nanotubes (MWCNTs)-CB/UHMWPE nanocomposites with segregated structure were 0.42 and 0.18 vol %, which were lower than those of the nanocomposites with uniform structure (4.91 and 2.62%). The electrical conductivity of MWCNTs-CB/UHMWPE nanocomposites with segregated structure reached to 3.0 x 10(-2) S m(-1) with the filler content of 1.5 vol %. In addition, the results of differential scanning calorimetry indicated that the crystallinity of UHMWPE decreased slightly with the addition of mixed filler. All of the study showed that the conductivity of MWCNTs-CB/UHMWPE nanocomposites with segregated structure has better electrical conductivity than the uniform.

Keywordcarbon nanofiller electrical conductivity percolation threshold synergistic effects
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/5647
Collection中国科学院特殊环境功能材料与器件重点试验室
Affiliation1.Xian Univ Technol, Fac Printing Packaging Engn & Digital Media Techn, Xian, Shaanxi, Peoples R China
2.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Plant Resources & Chem Arid Zones, Urumqi 830011, Peoples R China
Recommended Citation
GB/T 7714
Sun, ZF ,Ren, PG ,Zhang, ZW ,et al. Synergistic effects of conductive carbon nanofillers based on the ultrahigh-molecular-weight polyethylene with uniform and segregated structures[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2019,136(14):1-8.
APA Sun, ZF ,Ren, PG ,Zhang, ZW ,&Ren, F .(2019).Synergistic effects of conductive carbon nanofillers based on the ultrahigh-molecular-weight polyethylene with uniform and segregated structures.JOURNAL OF APPLIED POLYMER SCIENCE,136(14),1-8.
MLA Sun, ZF ,et al."Synergistic effects of conductive carbon nanofillers based on the ultrahigh-molecular-weight polyethylene with uniform and segregated structures".JOURNAL OF APPLIED POLYMER SCIENCE 136.14(2019):1-8.
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