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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14754
Title: Influence of nanoclay on the morphology, adhesive and mechanical properties of polysulfide modified epoxy resin
Authors: Guchhait P.K.
Pradhan S.
Kumar K.D.
Maji, Pradip K.
Bhowmick A.K.
Published in: Polymers and Polymer Composites
Abstract: Addition of nanoclay particles to a typical tertiary amine cured polysulfide modified epoxy adhesive leads to large increase in the single-lap shear strength of aluminum-aluminum joint. The nanoclay particles are very well dispersed (near fully exfoliated) in the polymer matrix even at 8 wt.% of nanoclay concentration. X-ray diffraction (XRD) and transmission electron microscopy (TEM) studies provide evidences for the excellent dispersion of the nanoclay platelets in the polymer matrix. The addition of nanoclay particle results in a significant increase in the elongation at break values along with the marginal increase in the tensile strength. The nanoclay provides good ductility to the epoxy-polysulfide adhesive by forming very flexible interface, which leads to less brittle composite having good strength. The increase in work to break (Wb) values by the addition of nanoclay represents the potential for dissipating a greater amount of energy during the bond rupture process of the lap shear test, and hence the adhesive strength increases. In addition, the increase in joint strength by the addition of nanoclay can also be attributed to the good interaction between the epoxy-polysulfide adhesive and the aluminum substrate in the presence of nanoclay. © Smithers Rapra Technology, 2010.
Citation: Polymers and Polymer Composites (2010), 18(3): 123-131
URI: https://doi.org/10.1177/096739111001800301
http://repository.iitr.ac.in/handle/123456789/14754
Issue Date: 2010
Publisher: Smithers Rapra
ISSN: 9673911
Author Scopus IDs: 35085048300
57209153199
57214847504
56249287900
26643264700
Author Affiliations: Guchhait, P.K., Rubber Technology Centre, Indian Institute of Technology, Kharagpur-721302, India
Pradhan, S., Rubber Technology Centre, Indian Institute of Technology, Kharagpur-721302, India
Kumar, K.D., Rubber Technology Centre, Indian Institute of Technology, Kharagpur-721302, India
Maji, P.K., Rubber Technology Centre, Indian Institute of Technology, Kharagpur-721302, India
Bhowmick, A.K., Rubber Technology Centre, Indian Institute of Technology, Kharagpur-721302, India, Indian Institute of Technology, Patna - 800013, India
Corresponding Author: Bhowmick, A. K.; Rubber Technology Centre, Indian Institute of Technology, Kharagpur-721302, India; email: anilkb@rtc.iitkgp.ernet.in
Appears in Collections:Journal Publications [PE]

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