Preparation of MCA-SiO2 and Its Flame Retardant Effects on Glass Fiber Reinforced Polypropylene

Fibers and Polymers - Tập 20 - Trang 120-128 - 2019
Jiayou Xu1, Kaidan Li1, Haiming Deng1, Shu Lv1, Pengkai Fang2,3, Hu Liu3,4, Qian Shao2, Zhanhu Guo3
1School of Chemistry & Chemical Engineering, Guangzhou University, Guangzhou, China
2School of Chemistry & Chemical Engineering, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, China
3Integrated Composite Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, USA
4National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, China

Tóm tắt

In this work, a new synergistic charring agent of melamine cyanurate-fumed silica (MCA-SiO2) has been synthesized through the facile self-assembly process, where melamine (ME) and cyanuric acid (CA) reacted and deposited on the fumed silica in the aqueous suspension. Then GF-PP/IFR-(MCA-SiO2) composites were prepared by melting blend of GF-PP and IFR containing MCA-SiO2. The general properties of the resulting composites were characterized by Cone calorimeter test (CCT), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR) etc. Results show that the addition of SiO2 could greatly reduced the heat release rate (HRR) of the GF-PP/IFR-MCA composites and improved the flame retardant properties during burning. When the content of SiO2 in MCA-SiO2 was 20 wt%, the flame retardant property of the composites reached the UL-94 V-0 rating, corresponding to a the limiting oxygen index (LOI) of 32.4 %. This enhanced flame retardant property could be attributed to the fact that the fumed silica with low thermal conductivity could prevent the heat exchange, and assist in the formation of compact and dense char during the burning.

Tài liệu tham khảo

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Fibers and Polymers

Tập 20

120-128

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