The necessary composition and content of fillers of a multicomponent extrudable composition based on an ultrahigh-molecular polyethylene (UHMPE) with specified mechanical and tribotechnical characteristics are determined. For the purpose of effective and operational development of extrudable composites based on an UHMPE, a minimum amount of experimental data and an algorithm for determining the governing parameters (formulations) is used, which give the needed (restrictive) values for the effective characteristics of multicomponent polymer-polymer compositions. This allows one to secure the tribological, mechanical and technological properties required. The limited amount of experimental data for the relation between the effective properties and the formulation required is supplemented by values calculated using the Lagrange interpolation polynomial. The relations obtained are represented as surfaces and the corresponding level lines. The imposition of level lines allows one to determine the area that meets the requirements specified and to find the formulation necessary for it. On the basis of this algorithm, the optimum formulation of a three-component mixture consisting of an UHMPE, a high-density polyethylene grafted with maleic anhydride, and a polypropylene having tribomechanical properties at the level of an UHMPE, but with a melt flow-behavior index suitable for 3D printing by fused deposition modeling, is determined. According to the formulation found, samples were made and tested, and they completely satisfied the properties prescribed.

中文翻译：

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基于具有预定性能的超高分子量聚乙烯的耐磨可挤出复合材料的开发

确定基于具有特定机械和摩擦技术特性的超高分子量聚乙烯 (UHMPE) 的多组分可挤出组合物的必要组成和填料含量。为了有效和可操作地开发基于 UHMPE 的可挤出复合材料，使用了最少量的实验数据和确定控制参数（配方）的算法，这给出了多组分有效特性所需的（限制性）值聚合物-聚合物组合物。这使人们能够确保所需的摩擦学、机械和技术特性。使用拉格朗日插值多项式计算的值补充了有限数量的关于有效特性和所需公式之间关系的实验数据。获得的关系表示为曲面和相应的水平线。水平线的施加允许人们确定满足指定要求的区域并找到所需的公式。基于该算法，三组分混合物的最佳配方由 UHMPE、接枝马来酸酐的高密度聚乙烯和具有 UHMPE 水平摩擦力学性能的聚丙烯组成，但具有熔体流动-确定了适合通过熔融沉积建模进行 3D 打印的行为指标。根据发现的配方，制作样品并进行测试，