Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector
Elucidation of the principle of microwave rubber vulcanization based on dielectric parameters and vulcanization of tire rubber by variable frequency microwave
The microcapsules with various nanosilica/urea formaldehyde nanocomposite shells containing the diluted epoxy healing agent were dispersed into the glass fibers/epoxy composite to create the self?healing ability in this composite. The healing?mechanical features of this smart composite especially the recovery ability and healing efficiency were investigated under the tensile, flexural and shear loads.AbstractIn the current study, the effect of adding the encapsulated healing agent with neat polymeric and nanocomposite shells on the mechanical?healing features of glass fibers/epoxy composite under various loads was investigated. Therefore, the microcapsules with urea?formaldehyde (UF) nanocomposite shell containing the various weight fraction of silica nanoparticles (0, 1, 2, 3) were synthesized. After that, the flexural, tensile, and interlaminar shear strength (ILSS) samples were destructed by using the quasi?static penetration method with the damaging force of 500, 1050, and 2900?N, respectively. The maximum healing efficiency in the flexural loads belonged to the composite with the 3 wt% nanosilica on the surface of microcapsules, which was 83.9%. Also, it was found the increment in the weight fraction of silica nanoparticles had a negligible effect on the healing ability of composite under tensile loading. Achieving 135.8% healing efficiency in the composite with the 2 wt% nanosilica under the shear loads can be one of the most important findings in this work.
» Publication Date: 22/10/2022
This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement Nº 768737
