In situ -polymerizing Thermoplastic Epoxy Resin Widely Applicable to Various Molding Processes for
H. Nishida, K. Nunotani, K. Uzawa
Kanazawa Institute of Technology, Hakusan-shi, Japan
In situ-polymerizing thermoplastic epoxy resin has just started to be used in practical applications. While the resin is a liquid epoxy resin mixture in the initial state, it can be allowed to polymerize linearly by heating to produce a thermoplastic polymer. So it is very useful for the production of thermoplastic composites reinforced with continuous fibers at a high volume content because the liquid resin mixture can easily impregnate into even very narrow gaps of fiber bundle. After impregnation, the resin mixture can rapidly polymerize and be converted into a non-cross-linked polymer. The thermoplastic epoxy resin can stably remain for each stage from initial monomer mixture to fully extended polymer. At each stage, the rheological property of the resin drastically changes and different molding processes including infusion, RTM, stamping, roll forming, etc. can be accordingly applied. This paper introduces some examples where this resin being at each stage is used.
ITHEC 2018 Manuscript B1
Publication date: 04.04.2019
Manuscript B1 published in Conference Proceedings ITHEC 2018
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