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One‐dimensional heat transfer study of a fiber‐reinforced wind epoxy composite system in vacuum assisted resin transfer molding process
Author(s) -
Lu Yuan,
Mei Shuang,
Pi PiHui,
Han Tailiang,
Cheng Jiang,
Wen XiuFang,
Cai ZhiQi,
Qian Yu
Publication year - 2014
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.22749
Subject(s) - materials science , transfer molding , epoxy , composite material , curing (chemistry) , heat transfer , autocatalysis , differential scanning calorimetry , composite number , thermodynamics , kinetics , mold , physics , quantum mechanics
To investigate the influence of curing behavior of a wind‐epoxy resin in vacuum assisted resin transfer molding (VARTM) process, numerical analysis of the heat transfer study of VARTM process was established to characterize temperature distribution in one dimension by directly solving heat equation and was compared with the result of experiment. Differential scanning calorimeter (DSC) was applied to test curing kinetic parameters of the epoxy system, which was required to evaluate internal thermal source and analyze heat transfer equations. Two models, such as n th order curing model and autocatalytic model, were established to solve the heat transfer equation. Combining the theoretical results with nth order curing model and experiment, it can be known that in early stage, temperature distribution correlates well with the experiment results due to the dominant chemical‐controlled reaction, while great discrepancy appears in the latter stage due to diffusion‐controlled reaction taking over. The result of the heat equation solved by autocatalytic model correlates well with the experiment results. POLYM. COMPOS., 35:1031–1037, 2014. © 2013 Society of Plastics Engineers