نتایج جستجو برای: Biocomposites

تعداد نتایج: 963  

2016
Liqing Wei Armando G. McDonald

A recent increase in the use of biofibers as low-cost and renewable reinforcement for the polymer biocomposites has been seen globally. Biofibers are classified into: lignocellulosic fibers (i.e., cellulose, wood and natural fibers), nanocellulose (i.e., cellulose nanocrystals and cellulose nanofibrils), and bacterial cellulose, while polymer matrix materials can be petroleum based or bio-based...

2015
Yoon Yee Then Nor Azowa Ibrahim Norhazlin Zainuddin Hidayah Ariffin Buong Woei Chieng Wan Md Zin Wan Yunus

Biodegradable and environmentally friendly biocomposites produced by a combination of biodegradable thermoplastics and natural fiber have gained increasing interest in recent years. In this work, eco-friendly biocomposites made from poly(butylene succinate) (PBS) and different weight percentages (10, 30, 50, and 70 wt%) of oil palm mesocarp fiber (OPMF) were fabricated via a melt blending proce...

2017
S. Z. A. Zaidi A. Crosky

Biocomposites is a field that has gained much scientific attention due to the current substantial consumption of nonrenewable resources and the environmentally harmful disposal methods required for traditional polymer composites. Research on natural fiber reinforced polyhydroxyalkanoates (PHAs) has gained considerable momentum over the past decade. There is little work on PHAs reinforced with u...

2008
Sarah Billington

Typical construction materials and practices have a large ecological footprint. Many materials are energyintensive to produce, and construction and demolition debris constitutes a large percentage of U.S. landfill volume. Biocomposites are structural materials made from renewable resources that biodegrade in an anaerobic environment after their useful service life to produce a fuel or feedstock...

2015
Marina Paolucci Gabriella Fasulo Maria Grazia Volpe Paola Laurienzo

In this study, polysaccharides of marine origin (agar, alginate and κ-carrageenan) were used to embed nutrients to fabricate biocomposites to be employed in animal feeding. The consistency of biocomposites in water has been evaluated up to 14 days, by several methods: swelling, nutrient release and granulometric analysis. Biocomposites were produced with varying percentages of nutrients (5%-25%...

2009
RONALD HOLSER Richard Russell

Biocomposites were prepared by the addition of flax fiber processing waste to glycerol and adipic acid mixtures. The processing waste consisted of fiber, cuticle, and shive fragments generated during the commercial cleaning of retted flax bast fibers. These waste materials were added at 1, 3, or 5 wt% levels to polymer formulations containing either 10% or 20% molar excess acid. The solids were...

Journal: :Carbohydrate polymers 2012
E Fortunati M Peltzer I Armentano L Torre A Jiménez J M Kenny

The aim of this paper is to report the impact of the addition of cellulose nanocrystals on the barrier properties and on the migration behaviour of poly(lactic acid), PLA, based nano-biocomposites prepared by the solvent casting method. Their microstructure, crystallinity, barrier and overall migration properties were investigated. Pristine (CNC) and surfactant-modified cellulose nanocrystals (...

Journal: :Biomedical materials 2012
Jerald E Dumas Pamela B BrownBaer Edna M Prieto Teja Guda Robert G Hale Joseph C Wenke Scott A Guelcher

Craniofacial injuries can result from trauma, tumor ablation, or infection and may require multiple surgical revisions. To address the challenges associated with treating craniofacial bone defects, an ideal material should have the ability to fit complex defects (i.e. be conformable), provide temporary protection to the brain until the bone heals, and enhance tissue regeneration with the delive...

2015
Patpen Penjumras Russly Abdul Rahman Rosnita A. Talib Khalina Abdan

Response surface methodology was used to optimize preparation of biocomposites based on poly(lactic acid) and durian peel cellulose. The effects of cellulose loading, mixing temperature, and mixing time on tensile strength and impact strength were investigated. A central composite design was employed to determine the optimum preparation condition of the biocomposites to obtain the highest tensi...

2015
Nilanjana Das

An intensive use of pesticides in agriculture has caused serious health and environmental problems. Various adsorbents and photocatalysts have been used for the remediation of pesticides from aqueous environment. In recent years, nanomaterials viz. nanocomposites and nano-biocomposites are playing a promising role towards the removal of pesticides. The present review focuses the updated informa...

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