Enhanced thermo-mechanical properties of acrylic resin reinforced with silanized alumina whiskers

被引：15
作者：
Yerro, Omar [1 ]
Radojevic, Vesna [1 ]
Radovic, Ivana [1 ]
Kojovic, Aleksandar [1 ]
Uskokovic, Petar S. [1 ]
Stojanovic, Dusica B. [1 ]
Aleksic, Radoslav [1 ]
机构：
[1] Univ Belgrade, Fac Technol & Met, Karnegijeva 4, Belgrade 11000, Serbia
来源：
CERAMICS INTERNATIONAL | 2016年 / 42卷 / 09期
关键词：
Self-healing composites; Electrospinning; Nanoindentation; Impact testing; MECHANICAL-PROPERTIES; PMMA; NANOCOMPOSITES; COMPOSITES; BEHAVIOR; HARDNESS;
D O I：
10.1016/j.ceramint.2016.03.205
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The acrylic resin reinforced with silanized alumina whiskers with self-healing (SH) agents was synthesized. The self-healing system consisted of microcapsules with the healing agent dicyclopentadiene (DCPD) and modified Grubbs' catalyst in PS electrospun nanofibers. The content of alumina whiskers was 3% w/w, and the concentration of PS fibers and OF microcapsules in the samples were 1% wow each. The embedded silanized alumina whiskers achieved higher T-g and absorbed impact energy in relation to unmodified alumina whiskers. The nanoindentation test revealed the reduced modulus increased for about 65% and hardness increased is about 90% for composites with silanized whiskers. Cracks were induced on the composite surface using the low energy impact test machine. The self-healing efficiency of 74% was approved by the repeated impact test after 96 h. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：10779 / 10786
页数：8
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