High reactive sulphide chemically supported on silica surface to prepare functional nanoparticle
| Autor: | Xiaohui Guo, Zhixin Jia, Lijuan Chen, Lianghui Wu, Yuanfang Luo, Tang Yuhan, Demin Jia |
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| Rok vydání: | 2018 |
| Předmět: |
inorganic chemicals
Materials science Silicon General Physics and Astronomy chemistry.chemical_element Nanoparticle 02 engineering and technology 010402 general chemistry 01 natural sciences Chemical reaction law.invention Natural rubber law chemistry.chemical_classification technology industry and agriculture Vulcanization Surfaces and Interfaces General Chemistry Polymer 021001 nanoscience & nanotechnology Condensed Matter Physics Sulfur 0104 chemical sciences Surfaces Coatings and Films chemistry Chemical engineering visual_art visual_art.visual_art_medium 0210 nano-technology Dispersion (chemistry) |
| Zdroj: | Applied Surface Science. 442:673-681 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2017.12.265 |
| Popis: | A solid-phase preparation method was applied to obtain a novel, green and effective functional nanoparticle, silica-supported sulfur monochloride (silica-s-S2Cl2), by the chemical reaction between chlorine atom and silicon hydroxyl on the silica surface. Through this chemical reaction, silica surface supported with high content of sulfur, and the functional nanoparticles can not only vulcanize the rubber instead of sulfur or other vulcanizing agent with high performance, but also improve the filler-rubber interaction as a modifier due to the improved modification effect. 29Si NMR, Raman spectroscopy, Element analysis and TGA confirm that the sulfur monochloride is chemically bonded on the silica surface. Cure properties measurement, morphology of filler dispersion, mechanical properties measurement, immobilized polymer layer and oxidation induction time increment together show that the novel vulcanizing agent silica-s-S2Cl2 instead of sulfur in rubber vulcanization gives rise to significant improvement in the crosslinking density and the interfacial adhesion between silica particles and the rubber matrix, which is on account of the promoted vulcanizing on the functional silica nanoparticles surface with the supported sulfur. |
| Databáze: | OpenAIRE |
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