Cherkashina Natalia Igorevna, Pavlenko Zoya Vladimirovna, Pushkarskaya Dar'ya Vasil'yevna, Denisova Lyubov Vasilievna, Domarev Semen Nikolayevich, Ryzhikh Dar'ya Aleksandrovna
Department of Theoretical and Applied Chemistry, Belgorod State Technological University Named after V.G. Shukhov, 308012 Belgorod, Russia.
Polymers (Basel). 2023 Jul 28;15(15):3212. doi: 10.3390/polym15153212.
In this study we evaluated the potential use of hazelnut shell powder in the production of a composite material. Polystyrene was used as a polymer matrix. This work presents the results of modifying hazelnut powder particles to create a polystyrene shell on their surfaces. Modification of the filler increased its contact angle wetted with water from θ=60.16±1.03° to θ=87.02±1.10°. Composite materials containing from 10 to 50 wt.% of modified hazelnut shell powder were prepared and studied. As a result of the experiments, it was found that the composites have optimal physical, mechanical, and operational properties at the following ratio: polystyrene 60-80 wt.%, modified hazelnut shell powder 20-40 wt.%. If the introduction of polystyrene was more than 90 wt.%, the flexural strength and Vickers hardness were quite low at the load of 200 g, and accordingly, the durability of such materials was not satisfactory. These samples are characterized by small percentages of hazelnut shells; therefore, the resulting material will be of pale, unsaturated color. The upper limit of the working temperature range for the composite lies between 265.0-376.0 °C, depending on the percentage of the hazelnut shell powder filling.
在本研究中，我们评估了榛子壳粉在复合材料生产中的潜在用途。使用聚苯乙烯作为聚合物基体。这项工作展示了对榛子粉颗粒进行改性以在其表面形成聚苯乙烯壳层的结果。填料的改性使其与水的接触角从θ = 60.16±1.03°增加到θ = 87.02±1.10°。制备并研究了含有10至50 wt.%改性榛子壳粉的复合材料。实验结果表明，在以下比例下，复合材料具有最佳的物理、机械和使用性能：聚苯乙烯60 - 80 wt.%，改性榛子壳粉20 - 40 wt.%。如果聚苯乙烯的引入量超过90 wt.%，在200 g载荷下的弯曲强度和维氏硬度相当低，因此，这类材料的耐久性不令人满意。这些样品中榛子壳的百分比小；因此，所得材料将呈浅色、不饱和颜色。复合材料的工作温度范围上限在265.0 - 376.0℃之间，这取决于榛子壳粉填充的百分比。
