Ecodesign Applied to Components Based on Sugarcane Fibers Composites

2010 ◽  
Vol 636-637 ◽  
pp. 226-232 ◽  
Author(s):  
Sandra M. Luz ◽  
Paulo M.C. Ferrão ◽  
C. Alves ◽  
M. Freitas ◽  
Armand Caldeira-Pires
Keyword(s):  
Life Cycle ◽  
End Of Life ◽  
Environmental Impacts ◽  
Sugarcane Bagasse ◽  
Environmental Performance ◽  
Natural Fiber ◽  
Fiber Composites ◽  
Flexural Properties ◽  
Natural Fiber Composites ◽  
Technical Performance

This work evaluates the technical performance and environmental impacts, when sugarcane bagasse is applied as reinforcement of polypropylene in a component instead neat polypropylene (PP). To achieve the goals of this study, the tensile and flexural properties and Life Cycle Assessment (LCA) as a function of fiber content were performed. In addition, different end-of-life (EOL) options for natural fiber composites were proposed, including incineration, recycling (with economic reuse) and discharging (landfill). Besides the good mechanical properties, natural fiber composites showed great environmental performance during the entire life cycle, mainly in the cultivation phase, when sugarcane consumes carbon while growing, contributing to global warming decreases. As a conclusion, sugarcane bagasse fibers production results in lower environmental impacts compared to neat PP and the recycling with economic reuse of sugarcane bagasse-PP composite was the best alternative to minimize environmental impacts after the end-of-life.

Life Cycle Impacts of Natural Fiber Composites for Automotive Applications: Effects of Renewable Energy Content and Lightweighting

2015 ◽  
Vol 20 (1) ◽  
pp. 179-189 ◽  
Author(s):  
Claire S. Boland ◽  
Robb De Kleine ◽  
Gregory A. Keoleian ◽  
Ellen C. Lee ◽  
Hyung Chul Kim ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Life Cycle ◽  
Natural Fiber ◽  
Energy Content ◽  
Fiber Composites ◽  
Natural Fiber Composites ◽  
Automotive Applications

Bagasse composites

2017 ◽  
Vol 31 (8) ◽  
pp. 1112-1146 ◽  
Author(s):  
Wei Xiong
Keyword(s):  
Mechanical Properties ◽  
Sugarcane Bagasse ◽  
Natural Fiber ◽  
Fiber Composites ◽  
Natural Fiber Composites ◽  
Environmental Friendly ◽  
Broad Field ◽  
Low Costs ◽  
Future Reference

This study provides a bibliographic review for future reference in the broad field of bagasse composites by looking for factors that influence their attributes. As an abundant agriculture resource, sugarcane bagasse has attracted extensive research interests because of its high annual yields, low costs, and environmental-friendly characters. During these research, various parameters have been tested to identify their effects; however, these studies are carried out dispersedly. This review provides a summary of these factors, their impacts, and mechanisms. Three factors are used to explain the attributes of bagasse composites followed by the factors involved in preparation, modification, and additives and also their influences. Then the best mechanical properties of different bagasse composites and their achieving condition are summarized. Durability is also reviewed. Additionally, competitive application of bagasse composites is defined by comparing their attributes with other natural fiber composites.

High-Performance Natural Fiber Composites Made from Technical Flax Textiles and Manufactured by Resin Transfer Molding

2017 ◽  
Vol 742 ◽  
pp. 263-270
Author(s):  
Stefan Pichler ◽  
Günter Wuzella ◽  
Thomas Hardt-Stremayr ◽  
Arunjunai Raj Mahendran ◽  
Herfried Lammer
Keyword(s):  
Water Absorption ◽  
High Performance ◽  
Natural Fiber ◽  
Volume Fraction ◽  
Resin Transfer Molding ◽  
Fiber Composites ◽  
Water Bath ◽  
Flexural Properties ◽  
Natural Fiber Composites ◽  
Transfer Molding

In the present work it is shown that the resin transfer molding (RTM) is a beneficial technique to manufacture natural fibers into high-performance natural fiber composites. At first, three different types of weaves were produced by using low-twist flax yarns and standard-twisted flax yarns. Laminates based on the weaves and a petrochemical derived epoxy thermoset were fabricated by RTM process. For each laminate different numbers of plies (4, 5, 6, and 7) were used to achieve a broad range of vf (from 32 % up to 55 %) which are having a pore volume fraction, vp, as low as possible (min. 0.7 % - max. 2.7 %). For the laminates, flexural properties in warp and weft direction were determined (ISO 14125) and the effect of respective yarn type on flexural properties was investigated. The best properties were achieved for the laminate based on weave2 with vf = 55 % (strength=303 MPa, modulus=19.3 GPa). When laminates were tested again after half of the year the modulus and strength were reduced, but the strainincreased. The laminates were immersed into a water bath (ASTM D570) to test the influence of vf and vp on the water absorption behavior. The maximum water uptake (4-7 wt.-%) and the maximum thickness swelling (3-12 %) were observed for the samples with higher vf. Laminates based on weave1 were immersed again into the water bath to investigate the extent of deterioration of flexural properties with respect to water absorption at various time intervals. The laminates were tested immediately after removing from the water bath and after re-drying.

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