The Effect of Ultrasonic Treatment on Thermal Stability of the Cured Epoxy/Layered Silicate Nanocomposite
The effect of ultrasonic treatment on thermal stability of binary systems containing epoxy and organic chemically modified montmorillonite (Cloisite 30B) was studied. Differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), transmission electron microscopy (TEM), and wide angle X...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2012/789815 |
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| author | N. Y. Yuhana S. Ahmad A. R. Shamsul Bahri |
| author_facet | N. Y. Yuhana S. Ahmad A. R. Shamsul Bahri |
| author_sort | N. Y. Yuhana |
| collection | DOAJ |
| description | The effect of ultrasonic treatment on thermal stability of binary systems containing epoxy and organic chemically modified montmorillonite (Cloisite 30B) was studied. Differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), transmission electron microscopy (TEM), and wide angle X-ray diffraction (WAXD) analysis were utilized. The mixing of epoxy and Cloisite 30B nanocomposites was performed by mechanical stirring, followed by 1 or 3-hour ultrasonic treatment, and polyetheramine as the curing agent. Both XRD and TEM analyses confirmed that the intercalation of Cloisite 30B was achieved. The d0 spacings for silicate in cured sample prepared at 1- and 3-hour duration of ultrasonic treatment were about 21 and 18 Å, respectively. This shows that shorter duration or ultrasonic treatment may be preferable to achieve higher d0 spacing of clay. This may be attributed to the increase in viscosity as homopolymerization process occurred, which restricts silicate dispersion. The 1-hour sonicated samples seem to be more thermally stable during the glass transition, but less stable during thermal decomposition process. |
| format | Article |
| id | doaj-art-8e3bac0e2a884af291dc66f3e46ad87e |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-8e3bac0e2a884af291dc66f3e46ad87e2025-02-03T07:24:43ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422012-01-01201210.1155/2012/789815789815The Effect of Ultrasonic Treatment on Thermal Stability of the Cured Epoxy/Layered Silicate NanocompositeN. Y. Yuhana0S. Ahmad1A. R. Shamsul Bahri2Department of Chemical and Process Engineering, Universiti Kebangsaan Malaysia, Selangor, 43000 Bangi, MalaysiaDepartment of Material Science, Universiti Kebangsaan Malaysia, Selangor, 43000 Bangi, Malaysia Crop Improvement and Protection Unit, Rubber Research Institute-Experimental Station, 47000 Sungai Buloh, MalaysiaThe effect of ultrasonic treatment on thermal stability of binary systems containing epoxy and organic chemically modified montmorillonite (Cloisite 30B) was studied. Differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), transmission electron microscopy (TEM), and wide angle X-ray diffraction (WAXD) analysis were utilized. The mixing of epoxy and Cloisite 30B nanocomposites was performed by mechanical stirring, followed by 1 or 3-hour ultrasonic treatment, and polyetheramine as the curing agent. Both XRD and TEM analyses confirmed that the intercalation of Cloisite 30B was achieved. The d0 spacings for silicate in cured sample prepared at 1- and 3-hour duration of ultrasonic treatment were about 21 and 18 Å, respectively. This shows that shorter duration or ultrasonic treatment may be preferable to achieve higher d0 spacing of clay. This may be attributed to the increase in viscosity as homopolymerization process occurred, which restricts silicate dispersion. The 1-hour sonicated samples seem to be more thermally stable during the glass transition, but less stable during thermal decomposition process.http://dx.doi.org/10.1155/2012/789815 |
| spellingShingle | N. Y. Yuhana S. Ahmad A. R. Shamsul Bahri The Effect of Ultrasonic Treatment on Thermal Stability of the Cured Epoxy/Layered Silicate Nanocomposite Advances in Materials Science and Engineering |
| title | The Effect of Ultrasonic Treatment on Thermal Stability of the Cured Epoxy/Layered Silicate Nanocomposite |
| title_full | The Effect of Ultrasonic Treatment on Thermal Stability of the Cured Epoxy/Layered Silicate Nanocomposite |
| title_fullStr | The Effect of Ultrasonic Treatment on Thermal Stability of the Cured Epoxy/Layered Silicate Nanocomposite |
| title_full_unstemmed | The Effect of Ultrasonic Treatment on Thermal Stability of the Cured Epoxy/Layered Silicate Nanocomposite |
| title_short | The Effect of Ultrasonic Treatment on Thermal Stability of the Cured Epoxy/Layered Silicate Nanocomposite |
| title_sort | effect of ultrasonic treatment on thermal stability of the cured epoxy layered silicate nanocomposite |
| url | http://dx.doi.org/10.1155/2012/789815 |
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