Microwave-assisted hydrosilylation of polypropylene and its application to in-situ grafted polypropylene/SiO2 nanocomposites. (8th September 2018)

• Record Type: Journal Article
• Authors: Chammingkwan, Patchanee; Toyonaga, Masahito; Wada, Toru; Terano, Minoru; Taniike, Toshiaki
• Is Part Of: Composites science and technology. Volume 165(2018)
• Page Start: 183
• Page End: 189
• Publication Date: 2018-09-08
• Subjects: A. polymer-matrix composites (PMCs) -- A. Nano particles -- B. Interfacial strength -- B. Mechanical properties -- Polymer grafting; Composite materials -- Periodicals; Composite materials; Fibrous composites; Periodicals; 620.118
• DOI: 10.1016/j.compscitech.2018.06.029
• Languages: English
• ISSNs: 0266-3538

Abstract

Abstract: Grafting end-functionalized polypropylene (PP) to the surfaces of nanoparticles is a promising approach in boosting physical properties of PP-based nanocomposites. In this study, a practical pathway is presented for the fabrication of PP-grafted nanocomposites: Reactive silicon alkoxy groups were introduced through microwave-assisted hydrosilylation of terminal unsaturation of vis-breaking PP. Thus obtained hydrosilylated PP was added as a reactive additive in melt compounding of PP with SiO2 nanoparticles to implement in-situ grafting. Significant improvements were attained in the dispersion of SiO2 nanoparticles, the crystallization rate and the tensile strength.