Mrówka Maciej, Franke Dawid, Ošlejšek Martin, Jureczko Mariola
Department of Material Technologies, Faculty of Materials Engineering, Silesian University of Technology, Krasińskiego 8, 40-019 Katowice, Poland.
Material Innovations Laboratory, Silesian University of Technology, Krasińskiego 8, 40-019 Katowice, Poland.
Materials (Basel). 2023 Oct 6;16(19):6569. doi: 10.3390/ma16196569.
Silicones have been used as protective coatings due to their resistance to hydrolytic degradation and UV (ultraviolet) degradation. There is a growing problem with managing organic waste, which can be used as fillers in composites. This research demonstrated the use of organic waste from citrus peels, including grapefruit, lime, lemon, and orange peels. Silicone-based composites were prepared by gravity-casting using 2.5, 5, and 10 wt.% waste filler. Samples made from the composite panels were subjected to static tensile, density, hardness, pin-on-disc, and Schopper-Schlobach abrasion tests. The test results showed that lower tensile strength values characterized the composite materials compared to the silicone used as a filler. All materials had greater hardness than the silicone without the addition. At the same time, composites with a mass density of the filler of 2.5 and 5 wt.% showed more excellent abrasion resistance than the silicone used as a matrix. This research showed that the samples containing 2.5 wt.% grapefruit filler had the best mechanical properties and the lowest abrasive wear.
由于有机硅具有抗水解降解和抗紫外线降解的特性，因此一直被用作防护涂层。管理有机废物正成为一个日益严重的问题，而有机废物可用作复合材料的填料。本研究展示了柑橘皮有机废物的用途，包括葡萄柚皮、酸橙皮、柠檬皮和橙子皮。通过重力浇铸，使用2.5%、5%和10%重量比的废填料制备了有机硅基复合材料。由复合板制成的样品进行了静态拉伸、密度、硬度、销盘和肖珀-施洛巴赫磨损试验。测试结果表明，与用作填料的有机硅相比，复合材料的拉伸强度值较低。所有材料的硬度都比未添加有机硅时更高。同时，填料质量密度为2.5%和5%的复合材料比用作基体的有机硅表现出更优异的耐磨性。这项研究表明，含有2.5%重量比葡萄柚填料的样品具有最佳的机械性能和最低的磨料磨损。
