Abstract

Composite materials based on secondary polypropylene and short-chopped basalt fibers are presented. Composites contain from 5 to 20% basalt fibers; each composite is heated at a temperature of 500, 650, and 750°C. For all samples, stress–strain curves are obtained. The tensile modulus reaches 2120 MPa at a basalt fiber content of 20%, while for the initial secondary polypropylene this modulus is 705 MPa. The strength is 44.5 MPa (for the initial secondary polypropylene, this value is 32.0 MPa), and the specific impact strength is 18.3 kJ/m² (for the initial secondary polypropylene, this value is 14.4 kJ/m²).

中文翻译：

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基于仲聚丙烯和改性玄武岩纤维的复合材料的合成，力学和热性能

摘要

提出了基于次级聚丙烯和短切玄武岩纤维的复合材料。复合材料包含5％至20％的玄武岩纤维；将每种复合材料在500、650和750°C的温度下加热。对于所有样品，均获得了应力-应变曲线。在玄武岩纤维含量为20％时，拉伸模量达到2120 MPa，而对于初始的次级聚丙烯，该模量为705 MPa。强度为44.5MPa（对于初始的次级聚丙烯，该值为32.0MPa），并且比冲击强度为18.3kJ / m ²（对于初始的次级聚丙烯，该值为14.4kJ / m ²）。