Abstract
Laminates of carbon fiber reinforced plastic (CFRP), which are manufactured by injection technology, are reinforced with boehmite particles. This doping strengthens the laminates, whose original properties are weaker than those of prepregs. Besides the shear strength, compression strength and the damage tolerance, the mode of action of the nanoparticles in resin and in CFRP is also analyzed. It thereby reveals that the hydroxyl groups and even more a taurine modification of the boehmites’ surface alter the elementary polymer morphology. Consequently a new flow and reaction comportment, lower glass transition temperatures and shrinkage, as well as a changed mechanical behavior occur. Due to a structural upgrading of the matrix (higher shear stiffness, reduced residual stress), a better fiber-matrix adhesion, and differing crack paths, the boehmite nanoparticles move the degradation barrier of the material to higher loadings, thus resulting in considerably upgraded new CFRP.
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Acknowledgments
The authors would like to thank the Helmholtz Association for the funding of the virtual institute ‘nanotechnology in polymer composites’. Under its umbrella most of the research could be done. Furthermore the authors thank Sasol Germany GmbH for providing the particles and for the great cooperation all the years.
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Arlt, C., Exner, W., Riedel, U., Sturm, H., Sinapius, M. (2013). Nanoscaled Boehmites’ Modes of Action in a Polymer and its Carbon Fiber Reinforced Plastic. In: Wiedemann, M., Sinapius, M. (eds) Adaptive, tolerant and efficient composite structures. Research Topics in Aerospace. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-29190-6_4
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DOI: https://doi.org/10.1007/978-3-642-29190-6_4
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