Sofian, Ibrahim and Khairiah Haji, Badri and Chantara Thevy, Ratnam and Noor Hasni, M. Ali and Muhammad Abdurrahman, Munir (2019) Radiation dose required for the vulcanization of natural rubber latex via hybrid gamma radiation and peroxide vulcanizations. IOP Conference Series: Materials Science and Engineering, 55. pp. 1-8. ISSN 1757-899X
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Abstract
To enhance the crosslinking of prevulcanized natural rubber latex, combination of Irradiation and peroxide vulcanizations were used. Through this method, hexanediol diacrylate (HDDA) from irradiation vulcanization acted as the main sensitizer, while cumene hydroperoxide (CHPO) from peroxide vulcanization would act as the co-sensitizer. The effects of irradiation doses on the mechanical properties of latex film were investigated. 16 kGy irradiation dose, 2.5 parts perhundred rubber (pphr) of HDDA, 0.1 pphr of CHPO and 2.5 phr of Aquanox LP antioxidant were found to be the optimum conditions for compounding formulation. The rubber film obtained had tensile strength, modulus at 500% and modulus at 700% of 27.7, 3.5 and 12.4 MPa respectively, which is more than 21% increment compared to control film. Besides, the crosslink percentage of the rubber film showed 7 % increment from 90.7% to 97.7%.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | natural rubber latex (RVNRL), vulcanization, mechanical properties. |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology Faculties, Institutes, Centres > Faculty of Resource Science and Technology |
| Depositing User: | Munir |
| Date Deposited: | 29 Dec 2023 07:11 |
| Last Modified: | 29 Dec 2023 07:11 |
| URI: | http://ir.unimas.my/id/eprint/43941 |
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