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研究了经降温母粒改性的远红外聚丙烯的流变性能。试验结果表明 ,远红外聚丙烯与仅用降温母粒改性的普通纺丝聚丙烯的流变性能基本一致 ,但前者的粘流活化能比后者稍高。随着远红外微粉含量的增加 ,熔体的非牛顿指数略有降低
The rheological properties of far-infrared polypropylene modified by cooling masterbatch were studied. The experimental results show that the rheological properties of far-infrared polypropylene and ordinary spinning polypropylene modified with only the cooling masterbatch are basically the same, but the viscous flow activation energy of the former is slightly higher than the latter. With the increase of the content of far-infrared powder, the non-Newtonian index of melt decreases slightly