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Official Journal of the Japan Wood Research Society

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Development of room-temperature curing aqueous emulsion-type acrylic adhesive I: effect of monomer composition on the initial adhesive strength

Abstract

For the purpose of developing a new aqueous emulsion-type adhesive for wood or paper use that does not release formaldehyde or volatile organic solvents, a honeymoon-type acrylic adhesive was examined. An adhesive system consisting of acrylic monomers copolymerized with functional monomers and a cross-linking agent was selected for the purposes of increasing initial adhesive strength and ensuring room-temperature curing. The initial adhesive strength increased by the use of cross-linkers such as dihydrazides and also polymeric methylene diphenyl diisocyanate (pMDI). Thus an adhesive with reasonable to good initial adhesive strength and room-temperature curing was obtained. The effect of pMDI on the initial adhesive strength was not significant and decreased when the amount of acrylamide in a copolymer was high.

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Correspondence to Tadashi Okamoto.

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Mori, A., Tashiro, K., Makita, K. et al. Development of room-temperature curing aqueous emulsion-type acrylic adhesive I: effect of monomer composition on the initial adhesive strength. J Wood Sci 51, 33–37 (2005). https://doi.org/10.1007/s10086-003-0610-2

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Key words

  • Acrylic emulsion
  • Honeymoon
  • Acetoacetyl
  • PVA
  • Diacetone acrylamide
  • Cross-linking