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Effect of Moisture Absorption on the Flexural Properties of Basalt/CNT/Epoxy CompositesBasalt/CNT/Epoxy 복합재의 유연도 특성에 관한 수분함유도의 영향

Other Titles
Basalt/CNT/Epoxy 복합재의 유연도 특성에 관한 수분함유도의 영향
Authors
김만태이경엽김현주정동호
Issue Date
29-9월-2012
Publisher
Korea
Keywords
basalt/carbon nanotube/epoxy c; moisture absorption; flexural property
Citation
Carbon, v.13, no.3, pp 1 - 5
Pages
5
Journal Title
Carbon
Volume
13
Number
3
Start Page
1
End Page
5
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/7902
Abstract
This study investigates the flexural properties of multi-walled carbon nanotube (MWCNT) reinforced basalt/epoxy composites under conditions with and without moisture absorption. The basalt/CNT/epoxy composites were fabricated using 1 wt% silanized MWCNTs and kept in seawater for over 4 months. The flexural properties of the moisture absorbed specimens were evaluated and compared with those of dry specimens. The flexural properties of basalt/CNT/epoxy composites were found to decrease with moisture absorption. The flexural strength and modulus of moisture absorbed specimens were 22% and 16% lower, respectively, than those of the dry specimen. Scanning electron microscope examination of the fracture surfaces revealed that the decreases of flexural properties in the moisture absorbed specimen were due to the weakening of interfacial bonding from swelling of the epoxy matrix.silanized MWCNTs and kept in seawater for over 4 months. The flexural properties of the moisture absorbed specimens were evaluated and compared with those of dry specimens. The flexural properties of basalt/CNT/epoxy composites were found to decrease with moisture absorption. The flexural strength and modulus of moisture absorbed specimens were 22% and 16% lower, respectively, than those of the dry specimen. Scanning electron microscope examination of the fracture surfaces revealed that the decreases of flexural properties in the moisture absorbed specimen were due to the weakening of interfacial bonding from swelling of the epoxy matrix.
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