Mechanical Properties and Thermal Resistance of Natural Rubber Nanocomposite Reinforced with Quaternized Polyvinyl Alcohol/Silica Nanoclusters
| Autor: | Jin Liu, Xiao Hui Tian, Shu Yi Wang, Jin Yu Sun, Jun Chao Duan |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010407 polymers
Nanocomposite Materials science Thermal decomposition 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Polyvinyl alcohol 0104 chemical sciences Nanoclusters chemistry.chemical_compound Natural rubber chemistry visual_art Ultimate tensile strength visual_art.visual_art_medium Thermal stability Composite material 0210 nano-technology Glass transition |
| Zdroj: | Journal of Nano Research. 43:46-56 |
| ISSN: | 1661-9897 |
| DOI: | 10.4028/www.scientific.net/jnanor.43.46 |
| Popis: | Quaternized polyvinyl alcohol (QPVA) was synthesized and used as an intermedium to improve dispersion of silica (SiO2) in natural rubber (NR). QPVA/SiO2 nanoclusters reinforced NR nanocomposite was prepared by latex compounding via electrostatic interaction. TEM micrographs demonstrated QPVA/SiO2 nanoclusters were distributed around NR particles, forming shell-core structure. The mechanical properties and thermal ageing resistance of NR-QPVA/SiO2 were significantly improved compared with that of neat NR. The tensile strength of NR-QPVA/SiO2 film was improved by 60%, when the SiO2 content is 3%. SEM pictures indicated SiO2 was homogenous dispersed throughout NR matrix in the presence of QPVA. It also demonstrated that SiO2 could enhance thermal stability of NR, as NR-QPVA/SiO2 had best surface morphology after 72 hours thermal ageing at 100 °C. The thermal decomposition temperature and glass transition temperature of NR-QPVA/SiO2 film increased to a higher temperature due to strong polymer–filler interaction, which also indicated that all the ingredients were compatible and homogenous. |
| Databáze: | OpenAIRE |
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