[article]
| Titre : |
Effect of rubber reinforcement with filler on extrusion flow and extrudate swell |
| Type de document : |
texte imprimé |
| Auteurs : |
Hidenori Hirai, Auteur ; Hideyuki Uematsu, Auteur ; Yuji Sakai, Auteur ; Shuichi Tanoue, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 226-235 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Caoutchouc styrène-butadiène
Charges (matériaux)
Dioxyde de titane
Elastomères -- Extrusion
Extrusion capillaire
Mesure
Rhéologie
SiliceLa silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux.
La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...).
Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale.
Viscoélasticité
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
The extrusion process of silica rubber through a chemical reaction is unstable, and the flow mechanism in the extruder is still unclear. In this study, styrene-butadiene rubber (SBR) has been chosen as the matrix and the reinforcing effects of two different kinds of fillers, silica and titanium dioxide, have been investigated on SBR. Additionally, the effect of the properties of the SBR/filler composites on extrudate swelling has been examined. The reinforcing effect of the filler was confirmed by dynamic viscoelasticity, and the swell ratio was measured using a capillary rheometer. The results suggest that titanium dioxide has no reinforcing effect, as there is no interaction between titanium dioxide and the molecular structure of SBR. In contrast, there was a significant interaction between silica and SBR. It was found that the bound rubber, which is an SBR gel with restricted molecular chains, causes a reduction in the swell ratio, and this reduction effect is larger than that caused by filling the filler in the matrix. Furthermore, it was observed that this bound rubber deforms during flow and affects the extrudate swell phenomenon. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Dynamic viscoelasticity measurement - Morphology of filler in the rubber - Capillary extrusion - Bound rubber measurement
- RESULTS AND DISCUSSION : Dynamic viscoelasticity and morphology - Effect of filler on capillary extrusion characteristics - Effect of bound rubber on capillary extrusion characteristics
- Table : Composition of the compounds |
| DOI : |
https://doi.org/10.1515/ipp-2022-4153 |
| En ligne : |
https://drive.google.com/file/d/1vNb4ggmDR9uDhqNpZ1hISFfoI07hKyCf/view?usp=shari [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37627 |
in INTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 2 (2022) . - p. 226-235
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Effect of rubber reinforcement with filler on extrusion flow and extrudate swell in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 2 (2022)
