Microcrystalline cellulose as reinforcing agent in silicone elastomers
| Autor: | Sandra Binauld, Jean-Marc Frances, Gino Mangiante, Julien Bernard, S. Deng, Aurélia Charlot, Xin Zhou, Etienne Fleury |
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| Přispěvatelé: | Shanghai Institute of Medical Mycology, Changzheng Hospital, Second Military Medical University, Ingénierie des Matériaux Polymères (IMP), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS), Department of Crop and Soil Sciences, Pennsylvania State University (Penn State), Penn State System-Penn State System, Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon |
| Rok vydání: | 2016 |
| Předmět: |
Filler (packaging)
Materials science Polymers and Plastics Surface Properties Hydrosilylation Microcrystalline cellulose 02 engineering and technology 010402 general chemistry 01 natural sciences chemistry.chemical_compound Silicone Materials Chemistry Silicone elastomer Alkyne modification Propargyl bromide Cellulose Composite material ComputingMilieux_MISCELLANEOUS chemistry.chemical_classification Biohybrids Organic Chemistry food and beverages [CHIM.MATE]Chemical Sciences/Material chemistry Polymer 021001 nanoscience & nanotechnology Grafting 0104 chemical sciences [CHIM.POLY]Chemical Sciences/Polymers chemistry Alkynes Silicone Elastomers 0210 nano-technology |
| Zdroj: | Carbohydrate Polymers Carbohydrate Polymers, Elsevier, 2016, 151, pp.899-906. ⟨10.1016/j.carbpol.2016.06.035⟩ |
| ISSN: | 0144-8617 |
| DOI: | 10.1016/j.carbpol.2016.06.035 |
| Popis: | International audience; Cellulose is commonly used as filler for the reinforcement of polymer materials but data in the case of silicones remain rare. In this work we report the modification of microcrystalline cellulose (MCC) fibers from cotton linters by propargyl bromide, in aqueous medium without alteration of the crystalline domains. The analysis evidenced the efficient grafting of alkyne functions at the surface of the fibers, the DS being 0.5. The resulting MCC-Alkyne fibers were introduced within a bi-component reactive silicone formulation (up to 20 wt%), allowing the formation of network through hydrosilylation reaction in which MCC-Alkyne played the role of a reactive fillers. Comparison between the properties of composites prepared with unmodified MCC and MCC-Alkyne highlighted a densification of the network and an enhancement of mechanical and thermal properties when coupling reactions occurred. Mechanical properties of silicone elastomers were better if the load of MCC-Alkyne remains low. |
| Databáze: | OpenAIRE |
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