Radical-induced cationic frontal polymerisation for prepreg technology
Open Access
- 23 January 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Monatshefte für Chemie / Chemical Monthly
- Vol. 152 (1), 151-165
- https://doi.org/10.1007/s00706-020-02726-y
Abstract
In this study, a new type of prepreg technology has been established using a dual curing system consisting of 1,6-hexanediol diacrylate (HDDA) and frontally polymerisable components based on the epoxide resin. The study of the polymerisation of HDDA revealed (tert-butylcyclohexyl)peroxydicarbonate (BCPC) as the most suitable radical thermal initiator. The presence of BCPC resulted in a fast radical polymerisation of HDDA and no cationic ring-opening reaction of the epoxy, which was observed by monitoring the double bond and epoxy group conversion in real time-NIR rheology measurement. The formed prepreg can subsequently be cured by radical-induced cationic frontal polymerisation of the epoxy resin. Effects of HDDA amount on the radical polymerisation, stiffness of the gel, frontal parameters and thermal mechanical properties of final polymers were investigated. With 10 wt% HDDA, the formed prepreg has very good storage stability, which was proved by monitoring the epoxy group conversion during 4 months of storage at 50 °C while still a stable front can be obtained. Furthermore, the RICFP-prepregs with different fibre contents were prepared and polymerised by RICFP. Then, a snowflake composite was successfully produced using RICFP-prepreg. Graphic abstractKeywords
Funding Information
- Bundesministerium für Wissenschaft, Forschung und Wirtschaft (ICM-2017-06830)
- Österreichischen Akademie der Wissenschaften (64870)
- TU Wien
This publication has 44 references indexed in Scilit:
- COMPOSITE MATERIALS FOR WIND POWER TURBINE BLADESAnnual Review of Materials Research, 2005
- UV-Induced Frontal Polymerization of Multifunctional (Meth)acrylatesMacromolecules, 2005
- UV‐ignited frontal polymerization of an epoxy resinJournal of Polymer Science Part A: Polymer Chemistry, 2004
- First Synthesis of a Polyurethane by Frontal PolymerizationMacromolecules, 2003
- Comparison of various chemometric evaluation approaches for on-line FT-NIR transmission and FT-MIR/ATR spectroscopic data of methyl methacrylate solution polymerizationAnalytica Chimica Acta, 2002
- Frontal Ring-Opening Metathesis Polymerization of DicyclopentadieneMacromolecules, 2001
- UV-radiation curing of acrylate/epoxide systemsPolymer, 2001
- Prepreg aging in relation to tackJournal of Applied Polymer Science, 1992
- Differential scanning calorimetry studies of the cure of carbon fiber–epoxy composite prepregsJournal of Applied Polymer Science, 1985
- Dicyandiamide analysis and solubility in epoxy resinsJournal of Applied Polymer Science, 1981