Structural and material properties of a rapidly cured thermoplastic-toughened epoxy system

Zhang, Jin, Guo, Qipeng and Fox, Bronwyn 2009, Structural and material properties of a rapidly cured thermoplastic-toughened epoxy system, Journal of applied polymer science, vol. 113, no. 1, pp. 485-491.

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Title Structural and material properties of a rapidly cured thermoplastic-toughened epoxy system
Author(s) Zhang, Jin
Guo, Qipeng
Fox, Bronwyn
Journal name Journal of applied polymer science
Volume number 113
Issue number 1
Start page 485
End page 491
Publisher John Wiley & Sons
Place of publication Hoboken, N. J.
Publication date 2009-07-05
ISSN 0021-8995
1097-4628
Keyword(s) curing of polymers
morphology
phase behaviour
thermoplastics
Summary Thermoplastic-toughened epoxy resins are widely used as matrices in modern composite prepreg systems. Rapid curing of thermoplastic-toughened epoxy matrix composites results in different mechanical properties. To investigate the structure–property relationship, we investigated a poly(ether sulfone)-modified triglycidylaminophenol/ 4,4'-diamino diphenyl sulfone system that was cured at different heating rates. An intermediate dwell was also applied during the rapid heating of the thermoplasticmodified epoxy system. We found that a higher heating rate led to a larger domain size of the phase-separated macrostructure and also facilitated more complete phase separation. The intermediate dwell helped phase separation to proceed even further, leading to an even larger domain size of the macrostructure. A carbon-fiber-reinforced polymer matrix composite prepreg based on the poly(ether sulfone)-modified multifunctional epoxy system was cured with the same schedule. The rapidly heated composite laminates exhibited higher mode I delamination fracture toughness than the slowly heated material.
Language eng
Field of Research 091202 Composite and Hybrid Materials
Socio Economic Objective 880399 Aerospace Transport not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2009, Wiley Periodicals, Inc.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30025535

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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