Hybrid thermosets from polyisocyanate/water glass/emulsifier systems: Effects of melamine-formaldehyde resin

Núria Castellà, Sergiy Grishchuk, J. Karger-Kocsis, Martin Schehl

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Melamine-formaldehyde resin (MF) was selected as potential reactive emulsifier for polyurea-based thermoset resins produced from polyisocyanate/water glass (WG)/emulsifier systems. As emulsifier tricresylphosphate and/or MF served for the initial water-in-oil type ("water" = WG; "oil" = polyisocyanate + emulsifier) emulsions. The MF content of the systems has been varied (≤15 wt %) and its effect on the structure, mechanical, thermal and flammability properties of the final polyurea-based thermosets studied. It was found that MF is a suitable emulsifier, which can fully replace the phosphate without negatively affecting the properties of the resulting hybrid thermosets. Moreover, hybridization with MF was often accompanied with pronounced improvements in fracture mechanical and static flexural properties.

Original languageEnglish
Pages (from-to)7-14
Number of pages8
JournalJournal of Applied Polymer Science
Volume119
Issue number1
DOIs
Publication statusPublished - Jan 5 2011

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Melamine formaldehyde resins
Polyurethanes
Thermosets
Glass
Water
Oils
Flammability
Emulsions
Phosphates
Resins

Keywords

  • dispersions
  • flame retardance
  • particle size distribution
  • structure-property relations
  • thermosetting hybrid resins

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Surfaces, Coatings and Films
  • Chemistry(all)

Cite this

Hybrid thermosets from polyisocyanate/water glass/emulsifier systems : Effects of melamine-formaldehyde resin. / Castellà, Núria; Grishchuk, Sergiy; Karger-Kocsis, J.; Schehl, Martin.

In: Journal of Applied Polymer Science, Vol. 119, No. 1, 05.01.2011, p. 7-14.

Research output: Contribution to journalArticle

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AU - Schehl, Martin

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