Document Type
Article
Publication Date
2-9-2018
Publication Title
Journal of Materiomics
Abstract
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 250–320 °C and 14 wt% in 350–420 °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.
Keywords
Flame retardant; Magnesium oxysulfate; Mechanical properties; Surface modification
Disciplines
Chemical Engineering | Mechanical Engineering
File Format
application/pdf
File Size
1.967 Kb
Language
English
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Repository Citation
Kim, E.,
Kim, Y. C.,
Park, J.,
Kim, Y.,
Kim, S.,
Kim, K. J.,
Suhr, J.,
Lee, Y.,
Lee, S. H.,
Kim, D.,
Kim, S.,
Yun, J.,
Park, I.,
Nam, J.
(2018).
Mechanical Properties and Flame Retardancy of Surface Modified Magnesium Oxysulfate (5Mg(OH)2·Mgso4·3H2O) Whisker for Polypropylene Composites.
Journal of Materiomics
http://dx.doi.org/10.1016/j.jmat.2018.02.003
