Evaluating epoxy cure through single-sided nmr measurements of molecular mobility

Tyler Meldrum, Elliot Kim, Kayla Copeman, Kristina Keating, Nastaran Abdol, Parviz Soroushian, Anagi Balachandra

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present the use of single-sided nuclear magnetic resonance (NMR) to monitor the cure of epoxy resins. While current methods to evaluate the cure of epoxies, including calorimetry (DSC) and infrared spectroscopy (FTIR), require either destructive sampling or the creation of model samples that correlate to materials used in final products, single-sided NMR offers a non-destructive alternative to monitor cure in situ. Here, we demonstrate insitu NMR measurements of room-temperature curing of epoxy and interpret these results in context of a reduction of molecular mobility during the curing process. We correlate the NMR relaxation properties of that signal with DSC data. Our results show how NMR supports other data on curing, the extent of cure, and adhesion strength of epoxies.

Original languageAmerican English
Title of host publicationSAMPE 2021
PublisherSoc. for the Advancement of Material and Process Engineering
Pages1076-1084
Number of pages9
ISBN (Electronic)9781934551394
StatePublished - 2021
EventSAMPE 2021 Conference and Exhibition - Virtual Online
Duration: Jun 29 2021Jul 1 2021

Publication series

NameInternational SAMPE Technical Conference
Volume2021-June

Conference

ConferenceSAMPE 2021 Conference and Exhibition
CityVirtual Online
Period6/29/217/1/21

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Evaluating epoxy cure through single-sided nmr measurements of molecular mobility'. Together they form a unique fingerprint.

Cite this