Enhancement of mechanical properties of natural rubber–clay nanocomposites through incorporation of silanated organoclay into natural rubber latex
| Autor: | Sudarshana Jayaraj Perera, SM Egodage, S. Walpalage |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Polymers and Plastics General Chemical Engineering natural rubber organoclay 02 engineering and technology 020401 chemical engineering Natural rubber co-coagulation Organoclay gelling agent 0204 chemical engineering Physical and Theoretical Chemistry chemistry.chemical_classification Nanocomposite nanocomposite Polymer science Industrial chemistry Polymer 021001 nanoscience & nanotechnology lcsh:TP1080-1185 lcsh:Polymers and polymer manufacture chemistry visual_art Natural rubber latex visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | e-Polymers, Vol 20, Iss 1, Pp 144-153 (2020) |
| ISSN: | 1618-7229 2197-4586 |
| DOI: | 10.1515/epoly-2020-0017 |
| Popis: | In this study, cetyl trimethyl ammonium bromide (CTAB) modified montmorillonite (MMT) which is called as organoclay (OMMT) was mixed with natural rubber, and masterbatches were produced using the acid-free co-coagulation (AFCC) method in the presence of a combined gelling agent, a mixture of CTAB and sodium dodecyl sulfate. The OMMT was further modified by grafting of bis(triethoxysilylpropyl)tetrasulfide as to reduce the surface energy in silanated organoclay (OMMT-S). As expected, the nanocomposites prepared with OMMT-S compared to those with OMMT exhibited greater mechanical properties due to the development of rubber–clay interactions and due to proper dispersion of small clay layers in the rubber matrix combined with the gelling agent. The improvement of elongation at break, hardness and tear strength of the nanocomposites with OMMT/OMMT-S was an added advantage when the nanocomposites are prepared using the AFCC method without having any adverse effect from the combined gelling agent. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|