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Modelling and optimization of rebound resilience and hardness of defatted rice bran/calcium carbonate-filled NR vulcanisates
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Modelling and optimization of rebound resilience and hardness of defatted rice bran/calcium carbonate-filled NR vulcanisates

Author: Sompop Moonchai; Darinya Moonchai Affiliation: Rubber and Polymer Technology Programme, Faculty of Engineering and Agricultural Industry, Maejo University, Chiang Mai 50290, Thailand
Edition/Format: Article Article : English
Publication:Polymer Testing, v32 n8 (December 2013): 1472-1478
Summary:
Hardness and rebound resilience of natural rubber (NR) vulcanisates filled with defatted rice bran (DRB)/calcium carbonate (CaCO3) were modelled and optimized. Second-order polynomial functions were generated to model the properties and to generate contour plots. Predicted properties of NR vulcanisates showed good agreement with experimental results. Hardness of filled-NR vulcanisates increased with filler loading, whereas rebound resilience decreased. At a fixed hardness level, lower CaCO3 loading can be used with partial DRB replacement. DRB incorporation into rubber compounds can improve their stiffness. Contour plots were used to identify DRB and CaCO3 level ranges for achieving optimum hardness and rebound resilience.  Read more...
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Details

Document Type: Article
All Authors / Contributors: Sompop Moonchai; Darinya Moonchai Affiliation: Rubber and Polymer Technology Programme, Faculty of Engineering and Agricultural Industry, Maejo University, Chiang Mai 50290, Thailand
ISSN:0142-9418
Language Note: English
Unique Identifier: 5161763514
Awards:

Abstract:

Hardness and rebound resilience of natural rubber (NR) vulcanisates filled with defatted rice bran (DRB)/calcium carbonate (CaCO3) were modelled and optimized. Second-order polynomial functions were generated to model the properties and to generate contour plots. Predicted properties of NR vulcanisates showed good agreement with experimental results. Hardness of filled-NR vulcanisates increased with filler loading, whereas rebound resilience decreased. At a fixed hardness level, lower CaCO3 loading can be used with partial DRB replacement. DRB incorporation into rubber compounds can improve their stiffness. Contour plots were used to identify DRB and CaCO3 level ranges for achieving optimum hardness and rebound resilience.

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