Preparation and Characterization of TCPP-CaMMT Nanocompound and Its Composite with Polypropylene

Nanomaterials

Shanshan Liu¹  Yanhua Lan²  Rongjie Yang³  Jiyu He³  Dinghua Li³  Junming Geng³ 

[1] Beijing Composite Materials Co., Ltd., Beijing 102101, China;School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China;School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;

关键词: tris-(1-chloropropan-2yl) phosphate;    intercalated organic montmorillonite;    polypropylene;   

DOI  :  10.3390/nano12091428

来源: DOAJ

【 摘 要 】

Based on the molecular dynamics method, the tris-(1-chloropropan-2yl) phosphate (TCPP)/montmorillonite (MMT) molecular model was established to study the binding energy and microstructure changes in TCPP and MMT. The theoretical simulation results showed that TCPP can enter the MMT layer and increase the layer spacing. From this, an organic intercalated Ca-montmorillonite TCPP-CaMMT was prepared by a very simple direct mixing method using flame retardant TCPP as a modifier. Polypropylene (PP) composites were prepared by TCPP, CaMMT, and TCPP-CaMMT. The microstructures of TCPP-CaMMT nanocompounds and PP composites were studied by X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscope (TEM). The results showed that TCPP-CaMMT nanocompounds could be exfoliated into nanosheets in PP. The flame retardancy and mechanical properties of PP/TCPP-CaMMT samples were studied by limited oxygen index (LOI) measurements and tensile tests. The PP/TCPP-CaMMT composites showed better LOI, tensile strength, and elongation at break than the machine-mixed PP/TCPP + CaMMT.

【 授权许可】

Unknown