The effects of crosslink density and crosslink type on the tensile and tear strengths of NR,SBR and EPDM gum vulcanizates |
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| Institution: | 1. Department of Chemical Engineering, University of Nottingham, Malaysia Campus, Broga, 43500 Semenyih, Selangor, Malaysia;2. Environmental Research Group, School of Engineering, Taylor''s University, 47500 Subang Jaya, Selangor, Malaysia;3. Radiation Processing Technology Division, Malaysia Nuclear Agency (Nuclear Malaysia), Bangi, 43000 Kajang, Malaysia;4. Department of Chemical & Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia;5. Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia;1. College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China;2. Agricultural Product Processing Research Institute, Chinese Academy of Tropical Agriculture Sciences, Zhanjiang 524001, China;1. Department of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand;2. Green Materials for Industrial Application Research Unit, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand;3. Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok, 10330, Thailand;1. Centre Català del Plàstic (CCP) - Universitat Politècnica de Catalunya Barcelona Tech (EEBE-UPC), Av. D''Eduard Maristany, 16, 08019, Spain;2. Faculty of Engineering and Natural Sciences, Materials Science and Nano Engineering, Sabanci University, 34956, Orhanli, Turkey;3. Sabanci University Integrated Manufacturing Technologies Research and Application Center, Composite Technologies Center of Excellence, Teknopark, Istanbul, Turkey;4. Department of Materials Research and Technology (MRT), Luxembourg Institute of Science and Technology (LIST), ZAE Robert Steichen, L-4940, Hautcharage, Luxembourg;5. Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000, Lille, France |
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| Abstract: | The effects of crosslink density and crosslink type on the tensile and tear strengths of gum NR, SBR and EPDM vulcanizates have been studied. Over a wide range of crosslink densities, sulphur vulcanizates for these rubbers have higher strengths than the peroxide vulcanizates. These results show that crystallizability of the rubbers is not an important factor in producing separate curves in the strength vs crosslink density plots. Tear strengths appear to be more sensitive to crosslink structures than tensile strengths. A composite plot shows that tensile strengths are approximately proportional to tear strengths for all three rubbers. |
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