Modified PF resins for composite structures with improved mechanical properties
Article
Article Title | Modified PF resins for composite structures with improved mechanical properties |
---|---|
ERA Journal ID | 1699 |
Article Category | Article |
Authors | Cardona, F. (Author), Aravinthan, T. (Author) and Moscou, C. (Author) |
Journal Title | Polymers and Polymer Composites |
Journal Citation | 18 (6), pp. 297-306 |
Number of Pages | 10 |
Year | 2010 |
Place of Publication | United Kingdom |
ISSN | 0952-6900 |
0967-3911 | |
1478-2391 | |
Web Address (URL) | http://www.polymerjournals.com/default.asp?Page=111&JournalType=ppc&JournalIssue=ppc18-6&JIP= |
Abstract | Novel composites resins for civil engineering structures were synthesised. Resol phenolic resins were modified by the copolymerization of Phenol with Cardanol and Formaldehyde (CPF). The CPF resins were synthesized at different proportions of Phenol to Cardanol and also of the total Phenol to Formaldehyde. The synthesis was carried out under alkaline conditions and with a maximum content of 40 wt% of Cardanol. The effect of the partial substitution of Phenol by Cardanol on the thermal and mechanical properties of the CPF resins was investigated. The fracture toughness and flexibility values of the cured CPF resins were found to be proportional to the Cardanol content in the resins. However, the flexural modulus values of the resins decreased with the amount of Cardanol. The higher toughening effect of replacing Phenol with Cardanol was obtained with the total P:F molar ratio of 1.0:1.25. Also a direct proportionality between the amount of Cardanol content and the decrease in crosslink density of the resins was observed. Simultaneous TGA-FTIR studies of the resins were carried out and the emitted gases were identified. The results confirmed that the thermal stability and the temperature of degradation of the cured CPF resins decreased as the amount of Cardanol content increased. Gas emissions during the pyrolysis of the CPF resins also increased. |
Keywords | phenolic; cardanol; flexibility; crosslink density; fracture toughness; TGA/FTIR |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
340399. Macromolecular and materials chemistry not elsewhere classified | |
401609. Polymers and plastics | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre of Excellence in Engineered Fibre Composites |
Polytech Montpellier University, France |
https://research.usq.edu.au/item/q027y/modified-pf-resins-for-composite-structures-with-improved-mechanical-properties
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