Kim, Eui-Su Kim, Ye Chan Park, Jungwoo Kim, Youngjun Kim, Sung-Hoon Kim, Kwang Jin Suhr, Jonghwan Lee, Youngkwan Lee, Seong Hoon Kim, Dae-Sik Kim, Soo-Hyun Yun, Ju-Ho Park, In-Kyung Nam, Jae-Do 2024-01-19T22:33:24Z 2024-01-19T22:33:24Z 2021-09-03 2018-06 2352-8478 https://pubs.kist.re.kr/handle/201004/121319 Magnesium oxysulfate (MOS) whisker is considered as a promising inorganic material recently attracting a great attention for being used as a reinforcing filler for polymer composites due to high aspect ratio and extremely-low bulk density. In this study, the MOS was treated with 3-methacryloyloxypropyl-trimethoxy silane (MPS) via sol-gel condensation reactions, which successfully allowed melt mixing with polypropylene (PP) up to 30 wt% of MOS. The tensile strength at yield and modulus of the MOS/PP composites were substantially increased by 50.8% and 362%, respectively, when compared with the pristine PP. As a novel finding, the flame retardancy of MOS was proved by identifying water evolution at elevated temperatures giving out 9 wt% of water in 250e320 degrees C and 14 wt% in 350-420 degrees C in two steps. This work demonstrated that the MOS could be an excellent filler for PP not only increasing the mechanical properties in a great extent but also imposing flame retarding capability. (C) 2018 The Chinese Ceramic Society. Production and hosting by Elsevier B.V. English ELSEVIER THERMAL-CONDUCTIVITY CARBON NANOTUBES COUPLING AGENT SILANE MORPHOLOGY FIBERS Mechanical properties and flame retardancy of surface modified magnesium oxysulfate (5Mg(OH)(2)center dot MgSO4 center dot 3H(2)O) whisker for polypropylene composites Article 10.1016/j.jmat.2018.02.003 1 JOURNAL OF MATERIOMICS, v.4, no.2, pp.149 - 156 JOURNAL OF MATERIOMICS 4 2 149 156 scopus 000435859200010 2-s2.0-85044945856 Chemistry, Physical Materials Science, Multidisciplinary Physics, Applied Chemistry Materials Science Physics Article THERMAL-CONDUCTIVITY CARBON NANOTUBES COUPLING AGENT SILANE MORPHOLOGY FIBERS Magnesium oxysulfate Surface modification Mechanical properties Flame retardant