Strain and filler ratio transitions from chains network to filler network damage in EPDM during single and cyclic loadings
| Autor: | Jean-Luc Bouvard, Edith Peuvrel-Disdier, Christophe Pradille, Nicolas Candau, Noëlle Billon, Oguzhan Oguz |
|---|---|
| Přispěvatelé: | Centre de Mise en Forme des Matériaux (CEMEF), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Ecole Polytech Fed Lausanne, EPFL STI IMX LMOM, Inst Mat, Lab Macromol & Organ Mat,Stn 12, CH-1015 Lausanne, Switzerland, Mat Xper, BPiFrance, Projet ECOTHER, Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Filler (packaging)
Elastòmers Materials science Polymers and Plastics mechanical-properties constitutive model 02 engineering and technology Enginyeria dels materials [Àrees temàtiques de la UPC] 010402 general chemistry 01 natural sciences composites law.invention [PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] Breakage Natural rubber Filler network law natural-rubber Materials Chemistry Composite material volume Strain (chemistry) behavior Organic Chemistry Vulcanization deformation Strain transition 021001 nanoscience & nanotechnology carbon-black 0104 chemical sciences Damage Elastomers visual_art visual_art.visual_art_medium propylene-diene rubber induced crystallization Slippage Rubber 0210 nano-technology |
| Zdroj: | Polymer Polymer, Elsevier, 2020, 197, pp.122435. ⟨10.1016/j.polymer.2020.122435⟩ |
| ISSN: | 0032-3861 |
| DOI: | 10.1016/j.polymer.2020.122435⟩ |
| Popis: | International audience; Chains and filler network damage were investigated during single and multiple cycles on a series of vulcanized EPDM containing various filler contents. In both series of experiments, a strain and a filler ratio transitions for damage mechanisms were identified. For low filler content (≤40 phr), damage mechanisms mostly occur in the elastically active rubber network consistent with the chains network alteration theory associated with irreversible chains scission/bond breakage. For high filler content (>40 phr), a strain transition occurs with damage initially located in the elastically active rubber network, but subsequently localizes in the vicinity of the filler-filler network. This is ascribed to filler re-aggregation with strain, improving its load-bearing capacity, that may release the immobilized rubber formed by the chains that are occluded and bonded to fillers. During cyclic experiments, such reversible release involving loss of weak physical bonds and chains slippage yields in a progressive cavity closing with cyclic accumulation that prevents further irreversible damage of the elastically active rubber network. |
| Databáze: | OpenAIRE |
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