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

Journal article (2016)

Authors

S Ahmed University of Calcutta
Debabrata Chakrabarty University of Calcutta
S. Bhowmik Amrita University, Structural Integrity & Composites - Aerospace Engineering
S. Mukherjee ChemE/Transport Phenomena - AS , Facilitation Centre for Industrial Plasma Technologies
Research Group
Structural Integrity & Composites (Aerospace Engineering) (TU Delft)
Adhesion Polycarbonate Mechanical properties Wetting Industrial applications Solvent bonding
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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.