Abstract
A new waterborne acrylic (WAC) hybrid adhesive was evaluated for an untreated polypropylene lamination. The WAC hybrid adhesive was formulated with a new class of porous clay heterostructure (PCH), which was modified with 3-(trimethoxysilyl)propyl methacrylate (as a coupling agent) to promote chemical bonding with the acrylic matrix to form a methacrylate-functionalized PCH (MPCH). The WAC hybrid adhesive was based on copolymers (2-ethylhexyl acrylate, ethylene glycol methyl ether acrylate, 2-(hydroxyethyl) methacrylate, styrene and acrylic acid) with varying amounts of MPCH. The scanning electron microscopy micrographs revealed the presence of a well dispersed MPCH distributed throughout the matrix. The optimal adhesive performance, in terms of the 180° peel strength of bonded joints, of 140.2 N/m was achieved using 1.5 wt% of MPCH, while the thermal stability of the adhesives was improved with increasing MPCH loading levels.
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ACKNOWLEDGMENTS
This research was financially supported by Research and Researchers for Industries (RRI), the Thailand Research Fund (TRF) Grant number PHD56I0019. Additionally, the authors are thankful for the utilization of the experimental facilities at College of Polymer Science and Polymer Engineering National Polymer Innovation Center, The University of Akron and the certificated proofreader, Dr. Robert Butcher, at the Publication Counseling Unit, Science Department, Chulalongkorn University.
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Ruanpan, S., Soucek, M.D. & Manuspiya, H. Waterborne acrylic hybrid adhesives based on a methacrylate-functionalized porous clay heterostructure for potential lamination application. Journal of Materials Research 32, 3689–3698 (2017). https://doi.org/10.1557/jmr.2017.332
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DOI: https://doi.org/10.1557/jmr.2017.332