Polypropylene/Graphene and Polypropylene/Carbon Fiber Conductive Composites: Mechanical, Crystallization and Electromagnetic Properties
| Autor: | Ching Wen Lou, Jia-Horng Lin, Chen-Hung Huang, Xiao-Min Song, Chi-Fan Liu, Chien-Lin Huang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Young's modulus EMIs Conductivity lcsh:Technology law.invention lcsh:Chemistry symbols.namesake chemistry.chemical_compound law Polymer chemistry Ultimate tensile strength carbon fibers General Materials Science Crystallization Composite material graphene nano-sheets Instrumentation Electrical conductor lcsh:QH301-705.5 Fluid Flow and Transfer Processes Polypropylene Graphene lcsh:T Process Chemistry and Technology General Engineering lcsh:QC1-999 Computer Science Applications chemistry lcsh:Biology (General) lcsh:QD1-999 Compounding lcsh:TA1-2040 conducting composites symbols lcsh:Engineering (General). Civil engineering (General) lcsh:Physics polypropylene |
| Zdroj: | Applied Sciences, Vol 5, Iss 4, Pp 1196-1210 (2015) Applied Sciences Volume 5 Issue 4 Pages 1196-1210 |
| ISSN: | 2076-3417 |
| Popis: | This study aims to examine the properties of composites that different carbon materials with different measurements can reinforce. Using a melt compounding method, this study combines polypropylene (PP) and graphene nano-sheets (GNs) or carbon fiber (CF) to make PP/GNs and PP/CF conductive composites, respectively. The DSC results and optical microscopic observation show that both GNs and CF enable PP to crystalize at a high temperature. The tensile modulus of PP/GNs and PP/CF conductive composites remarkably increases as a result of the increasing content of conductive fillers. The tensile strength of the PP/GNs conductive composites is inversely proportional to the loading level of GNs. Containing 20 wt% of GNs, the PP/GNs conductive composites have an optimal conductivity of 0.36 S/m and an optimal EMI SE of 13 dB. PP/CF conductive composites have an optimal conductivity of 10−6 S/m when composed of no less than 3 wt% of CF, and an optimal EMI SE of 25 dB when composed of 20 wt% of CF. |
| Databáze: | OpenAIRE |
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