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Optimization of the curing process of phenolic impregnated carbon ablator
Author(s) -
Tian Ye,
Huang Haiming,
Xu Xiaoliang
Publication year - 2018
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.46230
Subject(s) - curing (chemistry) , materials science , composite material , differential scanning calorimetry , isothermal process , fourier transform infrared spectroscopy , compressive strength , polymer chemistry , chemical engineering , thermodynamics , physics , engineering
Phenolic impregnated carbon ablator (PICA), which is composed of the phenolic resin (PR) and carbon fiber, is of particular interest to researchers in the aerospace field. In this work, PICA was prepared by the double‐stage isothermal heating curing method and the curing process of PICA was optimized based on non‐isothermal differential scanning calorimetry, extrapolation method and orthogonal experiment. Orthogonal array chose the standard L 9 (3 4 ). The results show that the optimum curing process of PICA is 120 °C 1 h + 170 °C 1 h, based on considering the better compressive property as the standard. And the results of the Fourier transform infrared spectra indicate that the more dimethylene ether groups result in the higher compressive strength of PICA cured at 120 °C 1 h + 170 °C 1 h. The existence of the more dimethylene ether groups can increase the amount of gases generated and bring off more heat during the ablative process of materials. This may provide a new vision for improve the ablative property of materials. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46230.