摘要
在分析PE100级管材专用进口树脂流变性能的基础上,利用零切黏度对相对分子质量特别是高相对分子质量级分的敏感性和毛细管流变曲线上高剪切速率区域剪切黏度对剪切变稀行为较敏感的流变特性,针对高密度聚乙烯7600M建立了分析加工流动性的方法。应用该方法对比分析了7600M与PE100级管材专用进口树脂的加工流动性,结果表明,7600M树脂的加工流动性达到了北欧化工PE100+树脂的水平。
The authors established a quantitative analysis method for processing flowability of high density polyethylene（HDPE） 7600M, based on the analyses of rheological properties of the imported PE 100 grade special resins for tubing. The method involved the sensitivity of zero shear viscosity to relative molecular mass, especially high relative molecular mass fractions, and the sensitivity of shear viscosity to shear thinning behavior in the high shear rate region on capillary flow curves. The method was applied to compare the processing performance of 7600M with the imported PE100 grade samples. The results indicate that the processing fluidity of 7600M reaches the level of PE 100＋ products of Borealis.
出处
《合成树脂及塑料》
CAS
北大核心
2010年第5期31-34,共4页
China Synthetic Resin and Plastics
关键词
高密度聚乙烯
零切黏度
剪切黏度
剪切速率
high density polyethylene
zero shear viscosity
shear viscosity
shear rate
