High fluidity polyethylene R335L for rotational moulding was developed in gas phase polyethylene plant,whose properties were analyzed by gel permeation chromatography,rotational rheometer,differential scanning calorimeter,and polarizing microscope.The results show that R335L shows a wider molecular mass distribution and obvious shear-thinning characteristics,whose tensile yield stress is 13.4 MPa and charpy notched impact strength is 65.0 kJ/m2.R335L performs excedently in processability and moulding properties,good melting and crystallization properties,good mechanical properties.
关键词
滚塑聚乙烯/高流动性/加工成型性能/力学性能
Key words
polyethylene for rotational moulding/high fluidity/processability and moulding property/mechanical property
维普
万方数据