Enhancement the Thermal Stability and the Mechanical Properties of Acrylonitrile-Butadiene Copolymer by Grafting Antioxidant
Monomeric antioxidants are widely used as effective antioxidants to protect polymers against thermal oxidation. Low molecular weight antioxidants are easily lost from polymer through migration, evaporation, and extraction. Physical loss of antioxidants is considered to be major concern in the enviro...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2010/981690 |
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| author | Abdulaziz Ibrahim Al-Ghonamy A. A. El-Wakil M. Ramadan |
| author_facet | Abdulaziz Ibrahim Al-Ghonamy A. A. El-Wakil M. Ramadan |
| author_sort | Abdulaziz Ibrahim Al-Ghonamy |
| collection | DOAJ |
| description | Monomeric antioxidants are widely used as effective antioxidants to protect polymers against thermal oxidation. Low molecular weight antioxidants are easily lost from polymer through migration, evaporation, and extraction. Physical loss of antioxidants is considered to be major concern in the environmental issues and safety regulation as well as long life time of polymers. The grafting copolymerization of natural rubber and o-aminophenol was carried out by using two-roll mill machine. The prepared natural rubber-graft-o-Aminophenol, NR-graft-o-AP, was analysed by using Infrared and 1H-NMR Spectroscopy techniques. The thermal stability, mechanical properties, and ultrasonic attenuation coefficient were evaluated for NBR vulcanizates containing the commercial antioxidant, N-phenyl-𝛽-naphthylamine (PBN), the prepared grafted antioxidant, NR-graft-o-AP, and the control vulcanizate. Results of the thermal stability showed that the prepared NR-graft-o-AP can protect NBR vulcanizate against thermal treatment much better than the commercial antioxidant, PBN, and control mix, respectively. The prepared grafted antioxidant improves the mechanical properties of NBR vulcanizate. |
| format | Article |
| id | doaj-art-7edd366110a044e38ca386baefe31f97 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-7edd366110a044e38ca386baefe31f972025-02-03T01:26:20ZengWileyInternational Journal of Polymer Science1687-94221687-94302010-01-01201010.1155/2010/981690981690Enhancement the Thermal Stability and the Mechanical Properties of Acrylonitrile-Butadiene Copolymer by Grafting AntioxidantAbdulaziz Ibrahim Al-Ghonamy0A. A. El-Wakil1M. Ramadan2Faculty of Engineering, Hail University, Saudi ArabiaFaculty of Engineering, Hail University, Saudi ArabiaFaculty of Engineering, Hail University, Saudi ArabiaMonomeric antioxidants are widely used as effective antioxidants to protect polymers against thermal oxidation. Low molecular weight antioxidants are easily lost from polymer through migration, evaporation, and extraction. Physical loss of antioxidants is considered to be major concern in the environmental issues and safety regulation as well as long life time of polymers. The grafting copolymerization of natural rubber and o-aminophenol was carried out by using two-roll mill machine. The prepared natural rubber-graft-o-Aminophenol, NR-graft-o-AP, was analysed by using Infrared and 1H-NMR Spectroscopy techniques. The thermal stability, mechanical properties, and ultrasonic attenuation coefficient were evaluated for NBR vulcanizates containing the commercial antioxidant, N-phenyl-𝛽-naphthylamine (PBN), the prepared grafted antioxidant, NR-graft-o-AP, and the control vulcanizate. Results of the thermal stability showed that the prepared NR-graft-o-AP can protect NBR vulcanizate against thermal treatment much better than the commercial antioxidant, PBN, and control mix, respectively. The prepared grafted antioxidant improves the mechanical properties of NBR vulcanizate.http://dx.doi.org/10.1155/2010/981690 |
| spellingShingle | Abdulaziz Ibrahim Al-Ghonamy A. A. El-Wakil M. Ramadan Enhancement the Thermal Stability and the Mechanical Properties of Acrylonitrile-Butadiene Copolymer by Grafting Antioxidant International Journal of Polymer Science |
| title | Enhancement the Thermal Stability and the Mechanical Properties of Acrylonitrile-Butadiene Copolymer by Grafting Antioxidant |
| title_full | Enhancement the Thermal Stability and the Mechanical Properties of Acrylonitrile-Butadiene Copolymer by Grafting Antioxidant |
| title_fullStr | Enhancement the Thermal Stability and the Mechanical Properties of Acrylonitrile-Butadiene Copolymer by Grafting Antioxidant |
| title_full_unstemmed | Enhancement the Thermal Stability and the Mechanical Properties of Acrylonitrile-Butadiene Copolymer by Grafting Antioxidant |
| title_short | Enhancement the Thermal Stability and the Mechanical Properties of Acrylonitrile-Butadiene Copolymer by Grafting Antioxidant |
| title_sort | enhancement the thermal stability and the mechanical properties of acrylonitrile butadiene copolymer by grafting antioxidant |
| url | http://dx.doi.org/10.1155/2010/981690 |
| work_keys_str_mv | AT abdulazizibrahimalghonamy enhancementthethermalstabilityandthemechanicalpropertiesofacrylonitrilebutadienecopolymerbygraftingantioxidant AT aaelwakil enhancementthethermalstabilityandthemechanicalpropertiesofacrylonitrilebutadienecopolymerbygraftingantioxidant AT mramadan enhancementthethermalstabilityandthemechanicalpropertiesofacrylonitrilebutadienecopolymerbygraftingantioxidant |