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Multiscale thermal study of virgin and aged polyphenylene sulfide reinforced by glass fiber
Author(s) -
Zuo Peiyuan,
Tcharkhtchi Abbas,
Fitoussi Joseph,
Shirinbayan Mohammadali,
Bakir Farid
Publication year - 2020
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.49031
Subject(s) - thermogravimetric analysis , fourier transform infrared spectroscopy , materials science , composite number , degradation (telecommunications) , composite material , sulfide , thermal decomposition , pyrolysis , thermal oxidation , kinetics , layer (electronics) , chemical engineering , chemistry , organic chemistry , metallurgy , telecommunications , physics , quantum mechanics , computer science , engineering
In this study, virgin and thermal aged PPS samples were prepared and tested using different techniques such as thermogravimetric analysis (TGA), coupled TGA–Fourier transform infrared spectroscopy (FTIR), and FTIR as well as optical microscopy. Some interesting research results can be summarized as follows: TGA results prove the PPS composite samples aged at 180 and 200°C have been degraded obviously during the aging period in oven. Moreover, accelerated aging leads to the degradation of PPS composite with the observation of increased thermal oxidation layer from outside to inside. There is a plateau standing at about 350 μm for the thermal oxidation layer at oxidation temperature of 200°C. Some thermal decomposition models are applied to clarify the degradation kinetics of PPS composite. According to the activation energy value, it appears degradation more easily at the beginning of the heating process in the atmosphere of oxygen than that of nitrogen. Moreover, the related products of PPS composites during pyrolysis are fully discussed with the combined analysis of TGA–FTIR techniques.