期刊
POLYMER
卷 236, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2021.124304
关键词
Composite matrices; Matrix composition design; Formulation Ratio Superposition; Thermosetting resin; Amine curative; Cure kinetics; Process modelling; Composites manufacturing
资金
- Engineering and Physical Sciences Research Council through the EPSRC Centre for Doctoral Training in Composites Manufacture [EP/K50323X/1]
This study introduces a cure kinetics methodology for tailoring initial matrix formulations focusing on matrix constituents reactivity. The method has been validated on a wide range of epoxy/amine formulations, allowing the design of customized matrix systems with specific reactivity and cure time.
Matrix formulation for aero-grade high-performance carbon fibre reinforced thermoset composites is a challenging task relying on extensive knowledge of chemistry, legacy information and trial-and-error iterations to identify a suitable pre-polymer resin/curative combination. This work proposes the development and application of a cure kinetics methodology to tailor preliminary matrix formulations focusing on matrix constituents reactivity. The kinetics of a ternary system containing either one epoxy pre-polymer and two amine curatives or two epoxy pre-polymers and one amine curative is approximated as a linear combination of the kinetics of its elementary binary systems containing the corresponding epoxy pre-polymer and amine curative. The method has been evaluated on a wide range of epoxy/amine formulations and shown to be valid with a reaction rate error lower than 0.003 min(-1). The application of this predictive method allows the design of matrix systems with tailored reactivity and cure time without extensive experimentation.
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