Surface modification of MMT and its effect on fatigue and fracture behavior of basalt/epoxy based composites in a seawater environment

被引：35
|
作者：
Kim, Daesung [1 ]
Mittal, Garima [1 ]
Kim, Minkyu [1 ]
Kim, Sanghoon [1 ]
Rhee, Kyong Yop [1 ]
机构：
[1] Kyung Hee Univ, Dept Mech Engn, 1732 Dukyoungdae Ro, Yongin 17104, Gyeonggi Do, South Korea
来源：
APPLIED SURFACE SCIENCE | 2019年 / 473卷
基金：
新加坡国家研究基金会;
关键词：
Silane-modified MMT; BFRP composites; Seawater absorption; Fracture; Residual strength; FIBER;
D O I：
10.1016/j.apsusc.2018.12.127
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, silanized-montmorillonite (Si-MMT) reinforced basalt fiber/epoxy composites were prepared and the effect of silanization of MMT on the fatigue and fracture behavior of the composites in seawater condition were analyzed. To compare the properties of Si-MMT/basalt/epoxy (Si-MMT BFRP), Pure basalt/epoxy (pure BFRP) composites were scrutinized in both dry and seawater conditions. The structural changes after silanetreatment were confirmed using TEM, XRD, and FTIR. Further, tensile strength, cyclic loading (fatigue) and fracture properties were studied through the universal testing machine (UTM) and FE-SEM of the fractured surface. It was found that the properties were improved after silanization of MMT due to the better compatibility and dispersion of MMT layers in the matrix. After seawater absorption, debonding occurred due to swelling of the polymer. Hence, deterioration in the properties was observed. However, the composites with Si-MMT still showed better performance among all.
引用
收藏
页码：55 / 58
页数：4
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