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Composites based on bimodal vinyl ester resins with low hazardous air pollutant contents
Journal article   Peer reviewed

Composites based on bimodal vinyl ester resins with low hazardous air pollutant contents

John J La Scala, Matthew S Logan, James M Sands and Giuseppe R Palmese
Composites science and technology, v 68(7), pp 1869-1876
2008
DOI: https://doi.org/10.1016/j.compscitech.2008.01.003

Abstract

D. Styrene replacements/alternatives A. Polymer matrix composites (PMCs) B. Thermo-mechanical properties B. Fracture toughness D. Dynamic mechanical thermal analysis (DMTA)
Vinyl ester (VE) resins with a bimodal distribution of molecular weights were prepared via methacrylation of epoxy monomers. Bimodal VE resins and neat polymers had viscosities and mechanical properties similar to that of commercial resins. E-glass composites were prepared and also found to have similar mechanical and thermo-mechanical properties relative to composites fabricated using commercial resins. However, the fracture toughness of the bimodal resins was superior to that of the commercial resins partially as a result of increased molecular relaxations that were manifested in a broader glass transition. Overall, bimodal resins allow for the use of low styrene content (∼33 wt%), while maintaining excellent thermal, mechanical, and fracture properties for the neat resins and composites.

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16 citations in Web of Science
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Collaboration types
Domestic collaboration
Web of Science research areas
Materials Science, Composites
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