26
views
0
recommends
+1 Recommend
2 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Tensile and structural properties of natural rubber vulcanizates with different mastication times

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Abstract Mastication reduced the molecular weight of natural rubber (NR). This would affect the tensile properties and strain-induced crystallization of the rubber vulcanizates due to the structural changes of the rubber molecules. In this study, influences of mastication time on tensile response, deformation-induced crystallization, and structural effects of crosslinked NR were investigated. The crystallization behavior and structural changes during stretching were studied by means of wide angle X-ray scattering (WAXS) and small angle X-ray scattering (SAXS). Increased mastication time significantly affected modulus at specified strain and upturn point of strain-induced crystallization of the crosslinked samples while the tensile strength was influenced slightly by mastication. During stretching, degree of crystallinity at given strain was found to decrease with increasing mastication time, while the crystallite size was reduced. Moreover, the size of crosslinked network structures induced by crosslinking also decreased slightly with increasing mastication time, as suggested by SAXS measurement.

          Related collections

          Most cited references36

          • Record: found
          • Abstract: not found
          • Article: not found

          Statistical Mechanics of Cross-Linked Polymer Networks II. Swelling

            Bookmark
            • Record: found
            • Abstract: not found
            • Book: not found

            Methods of X-Ray and Neutron Scattering in Polymer Science

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Flow-induced shish-kebab precursor structures in entangled polymer melts

                Bookmark

                Author and article information

                Journal
                po
                Polímeros
                Polímeros
                Associação Brasileira de Polímeros (São Carlos, SP, Brazil )
                0104-1428
                1678-5169
                2021
                : 31
                : 1
                : e2021003
                Affiliations
                [05] Perlis orgnameUniversiti Malaysia Perlis orgdiv1Centre of Excellence orgdiv2Geopolymer & Green Technology Malaysia
                [02] Pattani orgnamePrince of Songkla University orgdiv1Faculty of Science and Technology orgdiv2Research Unit of Advanced Elastomeric Materials and Innovations for BCG Economy Thailand
                [06] Hat Yai Songkhla orgnamePrince of Songkla University orgdiv1International College orgdiv2Rubber Engineering and Technology Program Thailand
                [03] Muang District Nakhon Ratchasima orgnameSynchrotron Light Research Institute Thailand
                [01] Pattani orgnamePrince of Songkla University orgdiv1Faculty of Science and Technology orgdiv2Department of Rubber Technology and Polymer Science Thailand
                [04] Perlis orgnameUniversiti Malaysia Perlis orgdiv1Faculty of Chemical Engineering Technology Malaysia
                Article
                S0104-14282021000100403 S0104-1428(21)03100100403
                10.1590/0104-1428.09120
                635fd9e6-9f74-4c79-80b9-099d37e2b684

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 15 February 2021
                : 07 October 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 36, Pages: 0
                Product

                SciELO Brazil

                Self URI: Full text available only in PDF format (EN)
                Categories
                Original Articles

                strain-induced crystallization,mastication,natural rubber,tensile properties

                Comments

                Comment on this article