Application of polymethylmethacrylate-grafted cellulose as reinforcement for compatibilised polylactic acid/natural rubber blends

•Addition of cell-g-PMMA improves the mechanical properties of biocomposites.•Addition of cell-g-PMMA increases the water contact angle of biocomposites.•Degradation of biocomposites decreases with an increase in cell-g-PMMA content.•Weight loss after burial was higher for biocomposites than for the...

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Veröffentlicht in:Carbohydrate polymers 2019-06, Vol.213, p.50-58
Hauptverfasser: Rosli, Noor Afizah, Ahmad, Ishak, Anuar, Farah Hannan, Abdullah, Ibrahim
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container_title Carbohydrate polymers
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creator Rosli, Noor Afizah
Ahmad, Ishak
Anuar, Farah Hannan
Abdullah, Ibrahim
description •Addition of cell-g-PMMA improves the mechanical properties of biocomposites.•Addition of cell-g-PMMA increases the water contact angle of biocomposites.•Degradation of biocomposites decreases with an increase in cell-g-PMMA content.•Weight loss after burial was higher for biocomposites than for the polymer alone. In this study, modified agave cellulose fibre combined by graft copolymerisation with methylmethacrylate was tested as a potential reinforcement for polylactic acid (PLA)-natural rubber/liquid natural rubber blends. Mechanical, morphological, thermal, wetting, and biodegradation characterisations were performed to assess the influence of cellulose-graft-polymethylmethacrylate (cell-g-PMMA) content on the properties of biocomposites. The addition of cell-g-PMMA improved the mechanical properties of the composites because of the chemical interaction between PLA and PMMA. Thermal stability decreased slightly upon cell-g-PMMA addition because of the low thermal stability of PMMA. A soil burial test revealed that the degradation of composites decreased with an increase in the cell-g-PMMA content. However, the weight loss after burial, which directly affected the water absorption capacity, was still higher for the cell-g-PMMA composites than for the polymer alone.
doi_str_mv 10.1016/j.carbpol.2019.02.074
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In this study, modified agave cellulose fibre combined by graft copolymerisation with methylmethacrylate was tested as a potential reinforcement for polylactic acid (PLA)-natural rubber/liquid natural rubber blends. Mechanical, morphological, thermal, wetting, and biodegradation characterisations were performed to assess the influence of cellulose-graft-polymethylmethacrylate (cell-g-PMMA) content on the properties of biocomposites. The addition of cell-g-PMMA improved the mechanical properties of the composites because of the chemical interaction between PLA and PMMA. Thermal stability decreased slightly upon cell-g-PMMA addition because of the low thermal stability of PMMA. A soil burial test revealed that the degradation of composites decreased with an increase in the cell-g-PMMA content. 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subjects Biopolymer
Cellulose modification
Composite
Grafting
title Application of polymethylmethacrylate-grafted cellulose as reinforcement for compatibilised polylactic acid/natural rubber blends
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