In the current study,the effect of flyash(FA)on the physic-mechanical,electrical,thermal and morphological behavior of nylon-66(PA)was inves-tigated.PA/FA composites were prepared by melt mixing via twin screw ex-trud...In the current study,the effect of flyash(FA)on the physic-mechanical,electrical,thermal and morphological behavior of nylon-66(PA)was inves-tigated.PA/FA composites were prepared by melt mixing via twin screw ex-truder,with varying weight percent(5 wt%,10 wt%,15 wt%and 20 wt%)of flyash.The results of composites were optimized and compared with vir-gin nylon-66.Mechanical and electrical properties of composites improved up to 10 wt%of FA loading without compromising the properties.The fly-ash filled nylon-66 composites showed a low abrasive wear rate.Increase the heat distortion temperature of composites with an increase in weight percent of flyash while opposing the melt flow rate.Flyash filler enhances the stiffness of plastics but significantly reduces the impact properties.Dis-persion of flyash was examined by impact fracture surface of composites using a scanning electron microscope.展开更多
利用双螺杆挤出机熔融共混的方法制备了不同含量的碳纤维(CF)与尼龙共聚物(PA6T/66)复合材料,通过差示扫描量热仪、热重分析仪、扫描电子显微镜和力学性能测试研究了该复合材料的热性能、力学性能和断面形态结构。结果显示,复合材料的...利用双螺杆挤出机熔融共混的方法制备了不同含量的碳纤维(CF)与尼龙共聚物(PA6T/66)复合材料,通过差示扫描量热仪、热重分析仪、扫描电子显微镜和力学性能测试研究了该复合材料的热性能、力学性能和断面形态结构。结果显示,复合材料的起始分解温度均在400℃以上,熔点都在300℃左右。随着CF含量的增加,复合材料的拉伸强度、弯曲强度和冲击强度都相应增加,当CF质量分数达到40%时,复合材料的拉伸强度、弯曲强度和冲击强度分别达到最大值:226.1 MPa、354.7 MPa、54.1 k J/m2。展开更多
文摘In the current study,the effect of flyash(FA)on the physic-mechanical,electrical,thermal and morphological behavior of nylon-66(PA)was inves-tigated.PA/FA composites were prepared by melt mixing via twin screw ex-truder,with varying weight percent(5 wt%,10 wt%,15 wt%and 20 wt%)of flyash.The results of composites were optimized and compared with vir-gin nylon-66.Mechanical and electrical properties of composites improved up to 10 wt%of FA loading without compromising the properties.The fly-ash filled nylon-66 composites showed a low abrasive wear rate.Increase the heat distortion temperature of composites with an increase in weight percent of flyash while opposing the melt flow rate.Flyash filler enhances the stiffness of plastics but significantly reduces the impact properties.Dis-persion of flyash was examined by impact fracture surface of composites using a scanning electron microscope.
文摘利用双螺杆挤出机熔融共混的方法制备了不同含量的碳纤维(CF)与尼龙共聚物(PA6T/66)复合材料,通过差示扫描量热仪、热重分析仪、扫描电子显微镜和力学性能测试研究了该复合材料的热性能、力学性能和断面形态结构。结果显示,复合材料的起始分解温度均在400℃以上,熔点都在300℃左右。随着CF含量的增加,复合材料的拉伸强度、弯曲强度和冲击强度都相应增加,当CF质量分数达到40%时,复合材料的拉伸强度、弯曲强度和冲击强度分别达到最大值:226.1 MPa、354.7 MPa、54.1 k J/m2。
