Cross-linking poly(vinyl acetate-co-N-methylolacrylamide) latex adhesive performance Part II: Fracture mechanics and microscopic durability studies

Nicole R. Brown, Joseph R. Loferski, Charles E. Frazier

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Fracture mechanics, scanning electron microscopy (SEM), and fluorescence microscopy were used to evaluate the performance and durability of three poly[(vinyl acetate)-co-N-methylolacrylamide] latex adhesives. Results from mode I fracture tests of wood-adhesive double cantilever beam specimens indicated that in the absence of accelerated aging conditions, the three adhesives performed similarly. After the samples were exposed to either boil or vacuum soak accelerated aging, differences among the adhesives emerged. Latex I (N-methylolacrylamide (NMA) injected throughout the polymerization) exhibited enhanced performance after weathering, whereas the performance of latexes DI (delayed injections of NMA) and C (continuous addition of NMA) either remained unchanged or declined after weathering. Fluorescence microscopy of wood-adhesive bond lines and SEM of latex films after accelerated aging exposures both indicated that latex I showed a unique resistance to the aging conditions. Relatively high proportions of water-phase NMA correlate with improved latex durability.

Original languageEnglish (US)
Pages (from-to)554-561
Number of pages8
JournalInternational Journal of Adhesion and Adhesives
Volume27
Issue number7
DOIs
StatePublished - Oct 1 2007

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N-methylolacrylamide
Latex
Latexes
Fracture mechanics
Adhesives
Durability
Aging of materials
Fluorescence microscopy
Weathering
Wood
Scanning electron microscopy
Cantilever beams
vinyl acetate
Polymerization

All Science Journal Classification (ASJC) codes

  • Biomaterials
  • Chemical Engineering(all)
  • Polymers and Plastics

Cite this

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abstract = "Fracture mechanics, scanning electron microscopy (SEM), and fluorescence microscopy were used to evaluate the performance and durability of three poly[(vinyl acetate)-co-N-methylolacrylamide] latex adhesives. Results from mode I fracture tests of wood-adhesive double cantilever beam specimens indicated that in the absence of accelerated aging conditions, the three adhesives performed similarly. After the samples were exposed to either boil or vacuum soak accelerated aging, differences among the adhesives emerged. Latex I (N-methylolacrylamide (NMA) injected throughout the polymerization) exhibited enhanced performance after weathering, whereas the performance of latexes DI (delayed injections of NMA) and C (continuous addition of NMA) either remained unchanged or declined after weathering. Fluorescence microscopy of wood-adhesive bond lines and SEM of latex films after accelerated aging exposures both indicated that latex I showed a unique resistance to the aging conditions. Relatively high proportions of water-phase NMA correlate with improved latex durability.",
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Cross-linking poly(vinyl acetate-co-N-methylolacrylamide) latex adhesive performance Part II : Fracture mechanics and microscopic durability studies. / Brown, Nicole R.; Loferski, Joseph R.; Frazier, Charles E.

In: International Journal of Adhesion and Adhesives, Vol. 27, No. 7, 01.10.2007, p. 554-561.

Research output: Contribution to journalArticle

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