马来酸酐接枝胶粉对胶粉/HDPE共混材料影响的研究

Study on the GRT/GRT-g-MAH/HDPE blends

探讨了胶粉(GRT)和高密度聚乙烯(HDPE)共混时胶粉的粒径、相容剂以及马来酸酐接枝胶粉(GRT-g-MAH)的用量对GRT/HDPE共混物力学性能的影响。用热分析以及扫描电子显微镜对共混材料的热行为以及形貌进行了分析。结果表明:制备GRT/HDPE复合材料时,胶粉的粒径越小,所得材料的拉伸性能越好,添加相容剂可进一步改善共混材料的性能。在体系中添加GRT-g-MAH时,共混物的力学强度也能得到提高,且GRT-g-MAH的加入量为17%时,共混物的力学强度达到最高,表明GRT-g-MAH可用作胶粉/HDPE共混的相容剂。

The effects of the particle size, the different compatilizers and the content of ground rubber tire grafted maleic anhydride （GRT-g-MAH） on the mechanical property of ground rubber tire （GRT）/high- density polyethylene （HDPE） were investigated. The thermal behavior and morphology of GRT/GRT-g- MAH/HDPE blends were studied by differential scanning calorimetry （DSC） and scanning electron microscope （SEM）. It showed that the tensile properties of blends increased with the decrease of GRT size. The addition of GRT-g-MAH improved the compatibility and the mechanical property of the GRT/HDPE blends. The best mechanical strength was achieved based on the recipe containing 17% GRT-g-MAH. The GRT-g- MAH could be used as compatilizer for GRT/HDPE blending.