Enhancing mechanical properties of prevulcanized natural rubber latex via hybrid radiation and peroxidation vulcanizations at various irradiation doses

Sofian Ibrahim, Khairiah Badri, Chantara Thevy Ratnam, Noor Hasni M. Ali

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

At present, there are three popular vulcanization processes being used in natural rubber latex industries, which are sulfur, radiation and peroxide vulcanization. Sulfur vulcanization produced products with superior mechanical properties compared to radiation and peroxide vulcanization. This paper discussed the effect of gamma irradiation dose on hybrid radiation and peroxidation vulcanizations in improving the mechanical properties of radiation vulcanized natural rubber latex (RVNRL). Latex compounding formulations are developed based on 2.5 parts per hundred rubber (phr) of hexanediol diacrylate (HDDA) as the sensitizer, 0.1 phr of tert-butyl hydroperoxide (t-BHPO) as the co-sensitizer and 2.5 phr of Aquanox LP antioxidant. The RVNRL was prepared and irradiated at various gamma radiation doses of 2, 4, 6, 8, 10 and 12 kiloGray (kGy). The rubber film obtained from irradiation at 6 kGy had tensile strength, modulus @ 500% and modulus @ 700% of 27.0, 3.0 and 11.0 MPa, respectively, which is more than 37% increment compared to the control film. Besides, the crosslink percentage of the rubber film showed 4% increment from 90% to 94%.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalRadiation Effects and Defects in Solids
DOIs
Publication statusAccepted/In press - 19 Apr 2018

Fingerprint

Vulcanization
Rubber
Latex
latex
Latexes
rubber
Dosimetry
Irradiation
mechanical properties
Radiation
Rubber films
dosage
Mechanical properties
irradiation
radiation
Peroxides
Sulfur
peroxides
sulfur
tert-Butylhydroperoxide

Keywords

  • gamma radiation
  • latex
  • RVNRL
  • Vulcanization

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Enhancing mechanical properties of prevulcanized natural rubber latex via hybrid radiation and peroxidation vulcanizations at various irradiation doses. / Ibrahim, Sofian; Badri, Khairiah; Ratnam, Chantara Thevy; Ali, Noor Hasni M.

In: Radiation Effects and Defects in Solids, 19.04.2018, p. 1-8.

Research output: Contribution to journalArticle

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