polymer-science-2017-posters-accepted-abstracts

8 / 31

Page 54
conferenceseries .com
Polymer Sciences | ISSN: 2471-9935
October 02-03, 2017 Chicago, USA
3rd International Conference on
Polymer Science and Engineering
Organoclay – Polyester nanocomposites: Structure-property relationship between organic additives to the
clay and mechanical properties of the composites
Atindra D Shukla1, Kinjal J Shah2, Dinesh O Shah1 and Toyoko Imae2
1Dharmsinh Desai University, India
2National Taiwan University of Science and Technology, Taiwan
The organoclays with variety of quaternary ammonium substituents (QAS) were successfully synthesized and studied for their
hydrophilic/hydrophobic behavior. These organic surfactants get accommodated in the inter-layer galleries of clay via cation
exchange process. Modified clays were used as filler in unsaturated polyester (UPE) resin to yield organoclay nano-composites
with altered mechanical properties. The organoclay-BQASMMT18 (octadecyldimethylbenzy-lammonium bromide modified
montmorillonite) with only 3 wt% in the UPE enhanced tensile strength, tensile modulus, flexural strength and elongation at break
by the order of 4.6, 2.4, 2 and 2.4, respectively, compared to the same properties of pristine UPE. The tensile strength and hardness
of the UPE-organoclay nanocomposites was increased with increase in organoclay content in the nanocomposites. However, the
tensile and flexural strength decreased with increased loading of BQASMMT18 from 3% to 5 wt% due to increased non-uniformity in
dispersibility of organoclay in polymer matrix. Moreover, dispersibility of hydrophobic organoclays in UPE nanocomposite is higher
when compared to that of hydrophilic and pristine clay. In summary, the hydrophilic or hydrophobic character of the organically
modified clay significantly affected its dispersion in the polymer matrix, which in turn affected the mechanical properties of the
resultant nanocomposites.
Polym Sci, 3:3
DOI: 10.4172/2471-9935-C1-003