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采用一步法活化增容制备了回收高密度聚乙(烯RHDPE/)胶粉管材专用料,并研究了引发剂过氧化二异丙苯强度从37.5 kJ/m2提高到48 kJ/m2;弯曲强度从10.5 MPa提高到12.9 MPa;弯曲模量从356 MPa提高到405(DCP)、接枝单体马来酸酐(MAH用)量对体系力学性能的影响。结果表明:当DCP、MAH用量分别为0.1份、1.0份时,RHDPE/胶粉体系获得最佳的力学性能,与简单共混物比较,拉伸强度从18.8 MPa提高到23.8 MPa;缺口冲击MPa。通过流变性能测试结果和扫描电(镜SEM)照片分析活,化增容对RHDPE/胶粉体系有效。
The single-step activated compatibilization was used to prepare high-density polyethylene (RHDPE /) rubber powder. The strength of the initiator, dicumyl peroxide, was increased from 37.5 kJ / m2 to 48 kJ / m2. The flexural strength From 10.5 MPa to 12.9 MPa; the flexural modulus increased from 356 MPa to 405 (DCP), and the amount of maleic anhydride (MAH) used as grafting monomer on the mechanical properties of the system. The results showed that the optimum mechanical properties of RHDPE / rubber powder system were obtained when the dosage of DCP and MAH were 0.1 and 1.0, respectively. Compared with the simple blends, the tensile strength increased from 18.8 MPa to 23.8 MPa. The notched impact MPa . The rheological performance test results and scanning electron microscopy (SEM) photo analysis of living and compatibilizing RHDPE / rubber powder system effective.