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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14624
Title: A molecular simulation analysis of influence of lignosulphonate addition on properties of modified 2-ethyl hexyl acrylate/methyl methacrylate/acrylic acid based pressure sensitive adhesive
Authors: Sanjiv Kasbe P.
Kumar N.
Manik G.
Published in: International Journal of Adhesion and Adhesives
Abstract: A novel PSA formulation that incorporates a bio-sourced lignosulphonate has been proposed. A molecular dynamics simulation study is attempted to explore the effect of lignosulphonate addition on the adhesion, thermal and mechanical properties of a conventionally used acrylic PSA composed of 2-EHA, MMA and AA. A good agreement of conventional PSA density and glass transition temperature, Tg, with literature estimates confirmed the accuracy of the molecular simulations. It is observed that there is an increase in PSA-substrate interaction energy with an increase in lignosulphonate content despite an increase in Tg due to its addition. This is proposed to be primarily due to an increase in polar groups contributed by lignosulphonate. The availability of more polar groups in bulk and increased density of these groups due to significant migration to interface results in an increase in interfacial energy, and hence, improved PSA adhesion. The shear modulus is observed to increase with increase in lignosulphonate content indicating its effectiveness to resist PSA shear deformation. Simulations suggest that in order to form an industrially useful adhesive, that may work well under RT conditions possessing an optimum cohesive strength and surface adhesion, a PSA formulation with ~15 wt.% lignosulphonate may be used. © 2017 Elsevier Ltd
Citation: International Journal of Adhesion and Adhesives (2017), 78(): 45-54
URI: https://doi.org/10.1016/j.ijadhadh.2017.06.014
http://repository.iitr.ac.in/handle/123456789/14624
Issue Date: 2017
Publisher: Elsevier Ltd
Keywords: Glass transition temperature
Interaction energy
Lignosulphonate
Pressure Sensitive Adhesive
ISSN: 1437496
Author Scopus IDs: 57194651017
57190818320
56595314900
Author Affiliations: Sanjiv Kasbe, P., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
Kumar, N., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
Manik, G., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
Funding Details: The corresponding author would like to sincerely acknowledge the grant (Grant Code: FIG-400136-DPT/13-14) provided by Indian Institute of Technology Roorkee, through its MHRD FIG initiative, for funding the work presented in this paper. The author gratefully acknowledges the financial support provided for the study.
Corresponding Author: Manik, G.; Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur CampusIndia; email: gauravmanik3m@gmail.com
Appears in Collections:Journal Publications [PE]

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