Green composition

As the mesophase has a much lower volatile content than the original binder pitch, and because the mesophase is still deformable by molding, a carbonization process was developed by Bruckmann (19) in which mechanical pressure is applied after the green composite has been pyrolyzed at 450°C for 5 h. A tensile strength of about 800 MPa and a Young s modulus of about 150 GPa were achieved without subsequent impregnation processes. These values were measured after final baking to 950°C. 

A. Bismark, S. Mishra, and T. Lampke. Plant fibers as reinforcement for green composites. In A.K. Mahanty, M. Misra, and L.T. Drzal (Eds.), Natural Fibers, Biopolymers, and Biocomposites, Taylor Francis, CRC, Boca Raton, 2005, p. 65. 

Liu, Z. S.Z. Erhan D.E. Akin F.E. Barton. Green composites from renewable resources Preparation of epoxidized soybean oil and flax fiber composites. J. Agric. Food Chem. 2006, 54 2134-2137. 

Keywords Polysaccharides, green composites, graft copolymers, drug-fungicide delivery, thermal stability, biodegradation... 

Graft Copolymers as Reinforcing Agents in Green Composites... 

For making CA-based green composites by process II, a two-step extrusion was used to make CA-hemp biocomposite pellets which were then injection molded. The first step was to produce CA plastic granules from CA powder and 30 wt.% TEC plasticizer. [Note CA needs an external plasticizer added to enhance its flow and allow processing below its degradation temperature (230°C), which is near... 

The ultimate goal of research in green composites is to replace the existing synthetic glass fibers with natural fibers as reinforcements and also to replace petroleum-based polymers with renewable-resource-based bipolymers as matrices in designing and engineering of biocomposite materials [33]. 

C. Billie, Green Composites, Woodhead Publishing, Cambridge, 2004. 

Edited by M. J. Owen and I. A. Jones Fatigue in composites Edited by B. Harris Green composites... 

Figure 14.2 is an SWOT (strengths, weaknesses, opportunities and threats) analysis that summarises benefits and drawbacks of the use of green composites produced with natural fibres and bio-derived matrices to replace traditional composites. The benefits appear superior to the disadvantages and the market opportunities are increasing for many industrial sectors. 

Figure 14.2 SWOT analysis of the market of green composites compared to traditional composites.

Ashori, A., 2008. Wood—plastic composites as promising green-composites for automotive industries Bio-resource Technology 99, 4661—4667. 

La Mantia, F.P., Morreale, M., 2011. Green composites a brief review. Composites Part A 42, 579-588. 

Figure 10.1 Load elongation curve of Eulaliopsis binata fiber-reinforced green composites.

Thakur, V., Thakur, M., Gupta, R. (2013). Eulaliopsis binata Utilization of waste biomass in green composites. In NaWralResource pp. 125-32. CRC Press... 

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