PRELIMINARY STUDY ON PEROXIDE VULCANIZATION WITH GAMMA IRRADIATION

  • Sofian Ibrahim
  • Khairiah Badri
  • Chantara Thevy Ratnam
  • Chee Keong Chai
  • Noor Hasni M. Ali
  • Mohd Noorwadi Mat Lazim

Abstract

Peroxide pre-vulcanized natural rubber latex prepared by using gamma irradiation technique is an alternative over the conventionally prepared peroxide pre-vulcanized that used activator to promote the peroxide decomposition in natural rubber latex. Through this technique the problems aroused by some activators such as tends to darken the natural rubber latex film during the drying process can also be overcome. For this preliminary study, data obtained from crosslink density and mechanical measurements were used to evaluate the effectiveness of gamma irradiation in the vulcanization process. Increasing the quantity of tert-butyl hydroperoxide (t-BHPO) from 0.1 pphr to 0.3 pphr while the irradiation dose maintain at 12 kGy has successfully delivered peroxide vulcanized natural rubber latex films with average tensile strength, modulus @ 500% and modulus @ 700% around 15.33, 1.01 and 3.42 MPa, respectively. The effective pre-vulcanization irradiation dose with respect to maximum crosslinking density (85.8 %) was observed on film prepared at 0.1 pphr t-BHPO.

Published
2018-06-06
How to Cite
IBRAHIM, Sofian et al. PRELIMINARY STUDY ON PEROXIDE VULCANIZATION WITH GAMMA IRRADIATION. Jurnal Sains Nuklear Malaysia, [S.l.], v. 30, n. 2, p. 39 - 46, june 2018. ISSN 2232-0946. Available at: <https://jsnm.nuclearmalaysia.gov.my/index.php/jsnm/article/view/137>. Date accessed: 17 feb. 2019.