By a News Reporter-Staff News Editor at Science Letter -- Current study results on Polyenes have been published. According to news reporting out of Beijing, People's Republic of China, by NewsRx editors, research stated, "Poly(ethylene glycol) grafted polypropylene (PP-g-PEG), as a new montmorillonite (Mt) modifier, was used to prepare Mt/polypropylene (PP) nanocomposites by melt blending. The results of X-ray diffraction (XRD) and transmission electron micrographs (TEMs) indicated that the PEG segments of PP-g-PEG diffused in Mt, enlarging its interlayer spaces and the silicates dispersed homogeneously in the PP matrix."
Our news journalists obtained a quote from the research from the Institute of Materials, "The Mt/PP-g-PEG/PP nanocomposites exhibited an unusual combination of rheological behaviors and mechanical properties. The melt viscosity of Mt/PP-g-PEG/PP nanocomposites was significantly reduced and the mechanical properties were improved. The plasticization effect of PEG segments caused the Mt/PP-g-PEG/PP nanocomposites significantly more shear thinning than that of the pure PP. Compared with those of the pure PP, the Izod-notched impact strength and elongation at break of Mt/PP-g-PEG/PP nanocomposites increased by 148% and 43%, respectively. In addition, the tensile strength was also improved. For the above results, a possible structure of Mt/PP-g-PEG/PP nanocomposites was suggested. During the melt blending, the PEG segments in PP-g-PEG diffused in the interlayer spaces of Mt, then interacted with the surfaces of silicates and formed double layer conformation. The PEG segments could fix at the surfaces of Mt while the PP segments were compatible with the PP matrixes."
According to the news editors, the research concluded: "The Mt particles would break up under shear and dispersed well in the PP."
For more information on this research see: Preparation and properties of montmorillonite/poly(ethylene glycol) grafted polypropylene/polypropylene nanocomposites. Applied Clay Science, 2014;87():303-310. Applied Clay Science can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Applied Clay Science - www.elsevier.com/wps/product/cws_home/503322)
Our news journalists report that additional information may be obtained by contacting S.P. Zhu, Aerosp Res Inst Mat & Proc Technol, Sci & Technol Adv Funct Composites Lab, Beijing 100076, People's Republic of China. Additional authors for this research include J.Y. Chen, H.L. Li, Y. Cao, Y.H. Yang and Z.H. Feng (see also Polyenes).
Keywords for this news article include: Asia, Beijing, Alkenes, Polyenes, Hydrocarbons, Nanocomposite, Nanotechnology, Polypropylenes, Ethylene Glycols, Organic Chemicals, Emerging Technologies, People's Republic of China
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