Comparative studies of solvent bonding and adhesive bonding for fabrication of transparent polymers

Journal article (2016)

Authors

S. Ahmed Ahmed University of Calcutta
D. Chakrabarty Chakrabarty University of Calcutta
S. Bhowmik Structural Integrity & Composites - Aerospace Engineering , Amrita University
S. Mukherjee ChemE/Transport Phenomena - AS , Facilitation Centre for Industrial Plasma Technologies
Research Group
Structural Integrity & Composites (Aerospace Engineering) (TU Delft)
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Published Date

01-03-2016

Language

English

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Faculty

Aerospace Engineering

Department

Aerospace Structures & Materials

Research Group

Structural Integrity & Composites

Abstract

This investigation highlights rationale of solvent bonding and adhesive bonding for fabrication of a transparent polymer such as polycarbonate with a high-throughput process. Studies under ultra violet spectra and visible spectra reveal that in comparison with adhesive bonding of a polymer, solvent diffusion bonding is more transparent. Polycarbonate is hydrophilic in nature resulting in a low contact angle of water as well as the presence of polar functional groups on the polymer surface. It is observed that a lap shear tensile strength of a solvent bonding polymer is significantly higher than that of an acrylic adhesive bonded polycarbonate, and fabrication of polycarbonate by solvent bonding merely takes few seconds. Solvent bonding of a polymer results in a cohesive failure from polymer as analyzed under the scanning electron microscopy, this is why solvent bonding shows a significantly higher bond strength.