Forschung Zur Rubrik

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Mechanical, physical, and Wear Resistant Properties of different Epoxy Composites

Enhancing the Strength and Wear Resistance of Rocca Oil based Epoxy/TiO2 NPs Matrix as Eco-Friendly Reinforcements

This study investigates the mechanical, physical, and wear-resistant properties of different epoxy composites. An ­epoxy matrix is used as the base material, while a combination of rocca natural oil and TiO2 nanoparticles is used as filler. The experiments include XRD analysis, hardness measurements, stress-strain curve analysis, friction coefficient and wear rate calculations and topography examination of worn surfaces using optical 3D and SEM imaging. The results show that the hybrid filler is well-dispersed throughout the matrix according to XRD analysis. Additionally, filling the matrix with 1.5 % TiO2 nanoparticles and 10 % rocca/epoxy matrices increases the hardness value by approximately 13.3 %. The lowest friction coefficient and wear rate were found in the sample filled with 10 % rocca oil and 1 % TiO2 nanoparticles, with reductions of 61 % and 70 %, respectively.

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Biodegradable and environmentally friendly Polymers made from renewable Raw Materials

Perspective Application of Biopolymers as Components of Rubber Compounds

Biodegradable and environmentally friendly polymers made from renewable raw materials are now the preferred choice for a wide range of applications. However, a combination of petroleum and bio-based sources is now being studied for developing cost-effective and environmentally friendly rubber products, with a specific pursuit of the European Green Deal. This research is focused on the application of calcium lignosulfonate into NBR rubber. The incorporation of plasticizer into the rubber compounds aimed to plasticize the biopolymer, to achieve a higher degree of homogeneity, improve the interfacial adhesion between the biopolymer and rubber matrix, and consequently achieve improved mechanical properties. The obtained results clearly show that it is possible to incorporate calcium lignosulfonate into the rubber matrix and to achieve the required characteristics of prepared vulcanizates.

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