Mechanical behavior of organo-modified Indian bentonite nanoclay fiber-reinforced plastic nanocomposites

被引：0

作者：

N. Raghavendra

H. N. Narasimha Murthy

M. Krishna

K. R. Vishnu Mahesh

R. Sridhar

S. Firdosh

G. Angadi

S. C. Sharma

机构：

[1] R. V. College Campus,Center for Manufacturing and Research Technology Utilization

[2] R. V. College of Engineering,Department of Mechanical Engineering

[3] ACS College of Engineering,Department of Chemistry

[4] Tumkur University,undefined

来源：

Frontiers of Materials Science | 2013年 / 7卷

关键词：

Indian bentonite (IB); ultrasonication; twin-screw extrusion; mechanical property;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The aim of the research was to examine the influence of organo-modified Indian bentonite (IB) nanoclay dispersed in vinylester on the mechanical properties of nanoclay/vinylester/glass nanocomposites. Nanoclay was organically modified using cationic surfactant hexadecyltrimethylammonium bromide (HDTMA-Br) by cation exchange method and dispersed in vinylester using ultrasonication and twin screw extrusion. XRD of nanoclay/vinylester revealed exfoliation at 4 wt.% nanoclay indicating uniform dispersion in the polymer. DSC results showed improvement in glass transition temperature by 22.3% in 4 wt.% nanoclay/vinylester/glass when compared with that of vinylester/glass. Nanoclay/vinylester/glass with 4 wt.% nanoclay showed 29.23%, 23.84% and 60.87% improvement in ultimate tensile strength (UTS), flexural strength (FS) and interlaminar shear strength (ILSS) respectively when compared with those of vinylester/glass. The mode of tensile failure examined by SEM showed no agglomeration of nanoclay in 4 wt.% nanoclay/vinylester/glass specimens.

引用

页码：396 / 404

页数：8