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Chemical Shift Effects in NMR Imaging of Adhesives and Adhesive Joints

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Abstract:

Chemical shift effects in nuclear magnetic resonance imaging (NMRI) of adhesives are demonstrated and discussed. The effects of more than one proton resonance on slice selection and on the final image are shown. Relative chemical shift effects are introduced to explain, numerically, how sample size, spectral width, and gradient strengths affect the observed image. The potential and limitations of using chemical shift effects in adhesive studies are discussed with illustrative examples. A model adhesive system was studied which was a typical solventless two-component polyurethane adhesive.

Keywords: Adhesives; NMR; NMR imaging

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702894204146

Affiliations: 1: Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106; permanent Address: Kiilto Oy, P. O. Box 250, SF-33101 Tampere, Finland 2: Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106

Publication date: November 1, 1989

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