Effect of Nanometer Antimony Trioxide on Properties of Flame Retardant Polypropylene Matrix Composites

2019 International Conference on Advances in Materials, Mechanical and Manufacturing

材料科学;机械制造

Xu, J.L.^1^2 ; Lin, Y.G.^1^2 ; Yang, W.L.^1^2 ; Niu, L.^1^2 ; Kang, C.H.^1^2

State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou

730050, China^1

Baiyin Research Institute of Novel Materials, Lanzhou University of Technology, Baiyin, 730900, China^2

关键词: Brominated polystyrene;    Crystallization properties;    Differential scanning calorimeters;    Flame retardant properties;    Flame-retardant polypropylene;    Limiting Oxygen Index;    Mechanical ball milling;    Vertical burning tests;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/576/1/012030/pdf
DOI  :  10.1088/1757-899X/576/1/012030

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Using antimony trioxide nanoparticles (nano-Sb2O3), montmorillonite (MMT) and brominated polystyrene (BPS) as additive and using polypropylene (PP) as matrix material, a novel nano-Sb2O3/MMT/BPS-PP flame retardant composite was synthesized via mechanical ball milling dispersion and melt blending method and characterized by X-ray diffraction, scanning electron microscopy, differential scanning calorimeter and tensile properties testing. The flame retardant performance of the composite was investigated by limiting oxygen index and vertical burning test (UL-94). The results show that the mechanical properties and flame retardant properties of the composites are improved compared to that of pure PP when PP matrix retardant composites are added with different mass fraction of nano-Sb2O3. When the mass fraction of nano-Sb2O3 is 3wt%, the PP matrix composite exhibits excellent tensile strength and crystallization properties. When the mass fraction of nano-Sb2O3 is more than 3wt%, the PP matrix composite exhibits excellent flame retardancy.