Assessment of moisture protective properties of wood coatings by a portable NMR sensor

Payam Pourmand, Lin Wang, Sergey V. Dvinskikh

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

We have evaluated the potential of nuclear magnetic resonance (NMR) spectroscopy based on small portable magnets for in situ assessment of moisture protective properties of wood coatings. Low field 1H NMR with a unilateral permanent magnet was used to monitor and map the local moisture content (MC) of wood specimens uncoated or coated with various types of commercial paint systems. The MC beneath a coating layer was measured with a penetration depth up to 5 mm and with a depth resolution of 0.2 mm. The method is quick, noninvasive, simple to perform, and does not require removing wooden parts from the structure.

Original languageEnglish
Pages (from-to)649-654
Number of pages6
JournalJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
Volume8
Issue number5
DOIs
StatePublished - Oct 2011

Scopus subject areas

  • Chemistry(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

Keywords

  • Durability
  • Nuclear magnetic resonance
  • Portable permanent magnet
  • Wood
  • Wood coating

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