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Title: A novel crystallization kinetics model of transcrystalline used for crystallization behavior simulation of short carbon fiber‐reinforced polymer composites

Journal Article · · Polymer Engineering and Science
DOI:https://doi.org/10.1002/pen.25028· OSTI ID:1485501
 [1];  [2];  [3];  [3]; ORCiD logo [3];  [4]
  1. School of Materials Science and Engineering Dalian University of Technology Dalian 116024 China
  2. State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics Dalian University of Technology Dalian 116024 China, School of Mechanical Engineering Dalian University of Technology Dalian 116024 China
  3. State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics Dalian University of Technology Dalian 116024 China
  4. State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics Dalian University of Technology Dalian 116024 China, School of Materials Science and Engineering, The Key Laboratory of Material Processing and Mold of Ministry of Education Zhengzhou University Zhengzhou 450001 China

A combined model is presented to simulate the crystallization behavior of short carbon fiber‐reinforced polymer (SCFRP) composites in this work. The combined model accounts for two morphologies in SCFRP: transcrystalline and spherulite. Transcrystalline is affected by complicated processing conditions and fibers and significantly affects the performance of composites. The quantitative modeling of crystallization kinetics of transcrystalline is thus important in predicting the mechanical properties of the composites. Therefore, this work proposes a novel analytical crystallization kinetics model of transcrystalline for SCFRP. In the combined model, the crystallization kinetics of spherulites is calculated using a classic Kolmogorov model. The combined model for SCFRP is first validated using a pixel coloring method in a two‐dimensional (2D) simulation experiment and is then compared with the results of a differential scanning calorimeter (DSC) experiment. The results of the model and experiments (using pixel coloring method and DSC) were found to be in agreement, which proves the rationality of the combined model. The modeling results also show that transcrystalline can accelerate the crystallization rate of composites, and the acceleration effect is more remarkable at high temperature. The proposed crystallization kinetics model has good potential for modelling the crystallization behavior of SCFRP under complex processing conditions. POLYM. ENG. SCI., 59:854–862, 2019. © 2018 Society of Plastics Engineers

Sponsoring Organization:
USDOE
OSTI ID:
1485501
Journal Information:
Polymer Engineering and Science, Journal Name: Polymer Engineering and Science Vol. 59 Journal Issue: 4; ISSN 0032-3888
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

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