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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, doi: 10.1002/app.30132.

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Title Structural and material properties of a rapidly cured thermoplastic-toughened epoxy system
Author(s) Zhang, JinORCID iD for Zhang, Jin
Guo, QipengORCID iD for Guo, Qipeng
Fox, Bronwyn
Journal name Journal of applied polymer science
Volume number 113
Issue number 1
Start page 485
End page 491
Total pages 7
Publisher John Wiley & Sons
Place of publication Hoboken, N. J.
Publication date 2009-07-05
ISSN 0021-8995
Keyword(s) curing of polymers
phase behaviour
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
DOI 10.1002/app.30132
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.
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Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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