摘要
本论文采用高密度聚乙烯(HDPE)为主要原料,使用碳纳米管(CNTs)为增强剂材料,进行聚乙烯/碳纳米管纳米复合材料的配方设计。通过设计不同原料配比的配方进行哈克密炼机混炼、造粒机造粒,再经平板硫化剂压片,最后裁成测试样条,然后通过使用各项专业仪器设备对各组配方样条的拉伸性能、结晶性能及热性能进行测试,最终得到HDPE99.7%,碳纳米管0. 3%的配方为最优配方。CNTs使得聚合物的ΔH_f以及T_m下降。随着碳纳米管含量的增加,复合材料的T_c值逐渐上升。含量为0.3%时,材料断面依然有少量平滑区域。PE-CNTs复合材料晶格数量大致相同,晶格的好坏程度大致相同。当碳纳米管含量为0.3%(质量分数)时,复合材料弹性模量最高、刚度最大、拉伸强度最大。
In this paper, the formulation of polyethylene / carbon nanotube nanocomposites was designed with high density polyethylene （HDPE） as the main raw material and carbon nanotube （CNTs） as the reinforcing agent. By designing the formula of different raw material ratio, through HAAKE mixer, granulator and platen press, the test samples were cut to strips. Then the tensile properties, crystallization and thermal properties of all kinds of samples were tested by using various professional instruments. Finally, HDPE 99.7% and carbon nanotube 0.3% were selected as the best formula. CNTs reduced the AHf and Tm of the polymer. With the increase of carbon nanotubes content, the Tc value of composites gradually increased. When the carbon nanotube content was 0.3%, there was still a small amount of smooth section. The lattice numbers of PE-CNTs composites were approximately the same, and the lattice quality was similar. When the content of carbon nanotubes was 0.3% （mass fraction）, the modulus of elasticity, stiffness and tensile strength of the composites were the highest.
作者
杨高峰
Yang Gaofeng(Yulin Chemical Energy College,Yulin 718100,Shaanxi,China)
出处
《橡塑技术与装备》
CAS
2018年第20期47-53,共7页
China Rubber/Plastics Technology and Equipment
