Danilova Sakhayana N, Dyakonov Afanasy A, Vasilev Andrey P, Okhlopkova Aitalina A, Tuisov Aleksei G, Kychkin Anatoly K, Kychkin Aisen A
Department of Chemistry, Institute of Natural Sciences, North-Eastern Federal University, 677013 Yakutsk, Russia.
Institute of the Physical-Technical Problems of the North, Siberian Branch of the Russian Academy of Sciences, 677980 Yakutsk, Russia.
Nanomaterials (Basel). 2021 Dec 15;11(12):3398. doi: 10.3390/nano11123398.
The paper presents the results of studying the effect of borpolymer (BP) on the mechanical properties, structure, and thermodynamic parameters of ultra-high molecular weight polyethylene (UHMWPE). Changes in the mechanical characteristics of polymer composites material (PCM) are confirmed and complemented by structural studies. X-ray crystallography (XRC), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and infrared spectroscopy (IR) were used to study the melting point, morphology and composition of the filler, which corresponds to the composition and data of the certificate of the synthesized BP. Tensile and compressive mechanical tests were carried out in accordance with generally accepted standards (ASTM). It is shown that BP is an effective modifier for UHMWPE, contributing to a significant increase in the deformation and strength characteristics of the composite: tensile strength of PCM by 56%, elongation at break by 28% and compressive strength at 10% strain by 65% compared to the initial UHMWPE, due to intensive changes in the supramolecular structure of the matrix. Structural studies revealed that BP does not chemically interact with UHMWPE, but due to its high adhesion to the polymer, it acts as a reinforcing filler. SEM was used to establish the formation of a spherulite supramolecular structure of polymer composites.
本文介绍了研究硼聚合物（BP）对超高分子量聚乙烯（UHMWPE）的力学性能、结构和热力学参数影响的结果。聚合物复合材料（PCM）力学特性的变化通过结构研究得到证实和补充。采用X射线晶体学（XRC）、差示扫描量热法（DSC）、扫描电子显微镜（SEM）和红外光谱（IR）研究了填料的熔点、形态和组成，这些结果与合成BP的证书中的组成和数据相符。拉伸和压缩力学试验按照公认标准（ASTM）进行。结果表明，BP是UHMWPE的有效改性剂，由于基体超分子结构的强烈变化，复合材料的变形和强度特性显著提高：与初始UHMWPE相比，PCM的拉伸强度提高了56%，断裂伸长率提高了28%，10%应变下的压缩强度提高了65%。结构研究表明，BP与UHMWPE没有化学相互作用，但由于其对聚合物的高附着力，它起到了增强填料的作用。利用SEM确定了聚合物复合材料球晶超分子结构的形成。
