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http://dx.doi.org/10.7234/kscm.2013.26.1.1

Evaluation of Mechanical Properties and Damage Sensing of CNT-Polypropylene Composites by Electro-Micromechanical Techniques  

Wang, Zuo-Jia (경상대학교 나노.신소재공학부 대학원)
Kwon, Dong-Jun (경상대학교 나노.신소재공학부 대학원)
Gu, Ga-Young (경상대학교 나노.신소재공학부 대학원)
Kim, Hak-Soo (현대자동차, 고분자재료연구팀)
Kim, Dae-Sik (현대자동차, 고분자재료연구팀)
Lee, Choon-Soo (현대자동차, 고분자재료연구팀)
Park, Joung-Man (경상대학교 나노.신소재공학부, 공학연구원)
Publication Information
Composites Research / v.26, no.1, 2013 , pp. 1-6 More about this Journal
Abstract
CNT-polypropylene (PP) composites were compounded by solvent dispersion method with uniform dispersion by using twin screw extruder. Damage sensing effects based on conductive carbon nanotubes (CNT) were evaluated to monitor the internal damage of CNT-PP composites using electrical resistance measurement. Mechanical and interfacial properties of CNT-PP composites were investigated and compared with neat PP. The mechanical properties of PP matrix were improved after adding CNT, because of the reinforcing effect of CNT fillers. In order to monitor the internal damage of CNT-PP composite, the change in electrical resistance of the composites was measured under fatigue loading and bending tests. CNT fillers exhibited good sensing under electrical resistance measurements. It is shown that CNT-PP composites with low CNT contents allow identifying critical cyclic loading, which are found to be accompanied with the internal failure.
Keywords
interface; reinforcement; fatigue test; microcrack;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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