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- W2955884150 abstract "Abstract Polyphenylene sulfide (PPS) is easily oxidized at high temperature, which greatly limits its applications. In this study, a nano-SiO 2 compound antioxidant (SiO 2 -g-AO) was prepared and incorporated into PPS by melt compounding to obtain PPS/SiO 2 -g-AO composites. SiO 2 -g-AO was prepared by reacting 3-(3,5-di-tert-butyl-4-hydroxyphenyl) (antioxidant AO) with an aminosilane coupling agent (KH792). Fourier transform infrared (FTIR) spectroscopy, energy dispersive spectroscopy (EDS) and thermogravimetric analysis (TGA) confirmed that the antioxidant AO was successfully immobilized on the surface of SiO 2 and the thermal stability was improved. Scanning electron microscopy (SEM) images showed that SiO 2 -g-AO was uniformly dispersed in PPS. It has been found that the crystallinity and mechanical properties of PPS composites improved, and the dynamic oxidation induction temperature (OIT) increased in the range of 16.7°C–21.1°C. A synergistic anti-oxidation model of nanoparticles and antioxidants, namely a multi-stage antioxidant system, was established by comprehensive analysis of experimental results. The synergistic anti-oxidation model provides a new idea for the antioxidant modification of polymer composites." @default.
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- W2955884150 date "2019-06-27" @default.
- W2955884150 modified "2023-10-17" @default.
- W2955884150 title "Preparation of nano-SiO<sub>2</sub> compound antioxidant and its antioxidant effect on polyphenylene sulfide" @default.
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- W2955884150 doi "https://doi.org/10.1515/polyeng-2019-0072" @default.
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