低VOC聚丙烯润滑体系的制备及其性能表征

分别以乙撑双硬脂酰胺（EBS）、双羟基乙基乙撑双硬脂酰胺（HBS）为润滑剂，聚丙烯（PP）为基体，采用熔融共混法制备了PP/HBS、PP/EBS聚合物润滑体系，研究了EBS、HBS的用量对复合体系熔体流动速率、复数黏度、拉伸强度以及挥发性有机化合物（VOC）的影响。结果表明，EBS、HBS对PP具有良好的润滑作用，其中HBS对PP具有更好的润滑效果，当润滑剂HBS的用量为1.0 %（质量分数，下同）时，复合体系的熔体流动速率增加了404.8 %；HBS、EBS对PP中的VOC具有抑制作用，其中HBS的抑制效果比EBS更明显。

Preparation and Properties of Polypropylene-matrix Lubrication System with Low VOC

Two polypropylene (PP) matrix lubrication systems were prepared by a melt-blending method using ethylene bis bisstearamide (EBS) and bishydroxyethyl ethylene bisstearamide (HBS) as lubricants, and their melt flow rate, complex viscosity, tensile strength and the release of volatile organic compounds (VOC) were investigated. The results indicated that both EBS and HBS generated good lubrication for PP, and HBS exhibited a much better lubrication effect on PP than EBS, and the lubrication system containing 1 wt % HBS achieved an increase in melt flow rate by 404.8 %. Both HBS and EBS could inhibit the release of VOC in PP effectively, but the inhibitory effect of HBS was stronger than that of EBS.