Reducing the raw material usage for room temperature infusible and polymerisable thermoplastic CFRPs through reuse of recycled waste matrix material
| Autor: | Ioannis Manolakis, Herbert Pfnür, Souvik Chakraborty, Gerhard Kalinka, Atasi Chatterjee, Dieter Meiners, Magnus Gebhardt, Joachim Deubener |
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| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Materials science Thermoplastic Mechanical Engineering Composite number Raw material Reuse Industrial and Manufacturing Engineering Shear (sheet metal) Matrix (chemical analysis) Gel permeation chromatography chemistry Mechanics of Materials Ceramics and Composites Thermal stability Composite material |
| Zdroj: | Composites Part B: Engineering. 216:108877 |
| ISSN: | 1359-8368 |
| DOI: | 10.1016/j.compositesb.2021.108877 |
| Popis: | In this work, a closed loop recycling process is investigated, which allows polymerised bulk thermoplastic matrix (Elium 150) from production waste (also referred to as recyclate) to be reused as additive in composite manufacturing by vacuum assisted resin infusion (VARI) of virgin Elium 150 monomer. It is shown that this process can save up to 7.5 wt% of virgin material usage in each processing cycle. At the same time, the thermal stability and stiffness of the composite increases with the proportion of recyclate introduced. Contemporarily, the shear and bending properties have also been observed to improve. Gel permeation chromatography (GPC) showed that the changes observed are due to an increase in molecular weight with the recyclate content. In particular, a correlation between the molecular weight and the shear properties of the composite was discovered using single fibre push-out tests. |
| Databáze: | OpenAIRE |
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