Marble powder was modified by stearic acid coupling agent after marble scraps were grinded. Natural rubber/marble powder composites were prepared by direct blending technology.The results showed that the average particle size of marble powder was 24.18μm.The best mechanical properties of composites were obtained after modified marble powder content were 10 percent in the natural rubber
and the tensile strength was 20.11Mpa.The heat resistance of composites was higher than unmodified marble powder/NR composites. Activated marble powder has excellent reinforcement effect and ideal processing characteristics
and can replace carbon black in rubber to achieve its application.
关键词
大理石粉天然橡胶拉伸性能热稳定性
Keywords
Marble stone powderNatural rubberTensile propertyThermal stability