Design and Manufacturing of High‐Performance Green Composites Based on Renewable Materials

Composite materials do offer freedom to design a material fitting best to the requirements of a given application. In case of fiber reinforced polymers especially the low weight in combination with other favorable properties, e.g. high mechanical performance, are the driving force for their application. Materials from renewable resources are of high interest if sustainability is aimed. In this paper, in a holistic approach a green composite is aimed to be used in a rotor blade for wind energy production. The challenging topic for this approach is to identify a possibility to gain a thermoset resin being really green, i.e. based on renewable resources and being not critical, e.g. toxic, at any stage of the whole processing chain. For this purpose several different approaches are studied and compared with other solutions based on green resin systems from other resources and conventional petrochemical based resin systems. A hemp seed oil based epoxy resin has been tested successfully. But to be completely free of petrochemicals, bio-based hardener and catalysts are still an open topic. For manufacturing of a rotor blade an infusion process has been used and it was found, a through thickness impregnation of the natural fiber yarn based textile structure results in entrapped air. Only in-plane saturation delivered completely impregnated structures.

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“…Intense research is still necessary to define and verify alternative systems, like proposed e.g. in [6].…”

Section: Discussionmentioning

confidence: 99%

High Performance Green Composites for Green Technologies

Schledjewski

Pertegas

Blößl

et al. 2017

KEM

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“…In recent years, composites based on renewable resources are becoming increasingly interesting/important as economic and ecological alternative to conventional composites produced from synthetic fibers and petrochemical-based matrix materials.1-3 Next to the employment of natural fibers, much effort has been directed toward the development of matrix thermosets based on renewable resources for high-performance composites. 4,5 In this regard, polyfurfuryl alcohol (PFA), also referred to as furan resin, represents a promising, highly ecological (carbon neutral) and fully non-toxic material. [6][7][8][9][10] Furfuryl alcohol is produced by digesting hemicellulose-rich agricultural waste into furfural, followed by catalytic hydrogenation.…”

Section: Introduction and Scopementioning

confidence: 99%

Effect of the water absorptive capacity of reinforcing fibers on the process ability, morphology, and performance characteristics of composites produced from polyfurfuryl alcohol

Resch‐Fauster

Džalto

Anusic

et al. 2018

Advanced Manufacturing: Polymer & Composites Science

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Some matrix polymers, such as polyfurfuryl alcohol (PFA) generate water during the processing of fiber-reinforced polymer composites which slows down the process speed and may adversely affect the overall material properties. In this paper, the effect of the water absorbance characteristics of reinforcing fibers on the process ability of PFA composites at short cycle times (industrial processing) is investigated and evaluated. Natural and synthetic fiber types which exhibit a high, medium, and low water absorbance capacity as well as different textile architectures are compared. The processing-induced composite morphology is assessed and correlated with the material's mechanical properties. The results reveal a high potential of hydrophilic natural fibers for significantly reducing the processing time while maintaining the overall performance characteristics of PFA composites.

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Design and Manufacturing of High‐Performance Green Composites Based on Renewable Materials

Cited by 2 publications

References 130 publications

High Performance Green Composites for Green Technologies

High Performance Green Composites for Green Technologies

Effect of the water absorptive capacity of reinforcing fibers on the process ability, morphology, and performance characteristics of composites produced from polyfurfuryl alcohol

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