回收聚酯基合金同质复合材料的微结构与性能

发布时间：2018-03-24 07:18

  本文选题：废弃涤纶纺织品　切入点：回收聚对苯二甲酸乙二醇酯(r-PET)　出处：《华东理工大学学报(自然科学版)》2017年03期

【摘要】：由低温固相挤出工艺制备了连续废弃涤纶纺织品/回收聚对苯二甲酸乙二醇酯(r-PET)/高密度聚乙烯(HDPE)同质复合材料。采用扫描电子显微镜(SEM)、动态热机械分析仪(DMA)、差示扫描量热仪(DSC)、热重分析仪(TGA)、毛细管流变仪及万能电子拉力机等对含有不同编织结构的废弃涤纶纺织品复合材料微观结构和性能进行了研究。研究结果表明,线圈结构的废弃涤纶纺织品(F2)对复合材料结构与性能影响最显著。F2明显改善了HDPE在r-PET中的分散性,提高了复合材料的表观黏度、刚性以及热稳定性,并使得复合材料的拉伸强度、弯曲强度和弯曲模量分别提高了13.3%、28%和24%。
[Abstract]:Continuous waste polyester textile / recycled polyethylene terephthalate / high density polyethylene terephthalate (HDPE) homogenous composites were prepared by low temperature solid state extrusion process. Scanning electron microscopy (SEM), dynamic thermal mechanical analyzer (DMA), differential analysis (DMA) were used. The microstructure and properties of waste polyester textile composites with different braiding structures were studied by scanning calorimeter, thermogravimetric analyzer (TGA), capillary rheometer and universal electronic tensioning machine. The structure and properties of the composite were most significantly affected by the waste polyester textile F2 with coil structure. F2 significantly improved the dispersion of HDPE in r-PET, and increased the apparent viscosity, rigidity and thermal stability of the composite. The tensile strength, flexural strength and flexural modulus of the composites were increased by 13.328% and 24% respectively.
【作者单位】： 华东理工大学材料科学与工程学院;
【分类号】：TB332
，

本文编号：1657280