摘要
研究了线性双峰聚乙烯(LBPE)与低密度聚乙烯(LDPE)共混物熔体的流变行为。讨论了共混物的组成、剪切应力和剪切速率以及温度对熔体流变行为、熔体粘度的影响,测定了不同配比熔体的非牛顿指数(n)．熔体流动速率(MFR)及力学性能,为双峰聚乙烯的加工和使用提供了理论依据.
Rheological behavior of linear bimodal polyethylene(LBPE)/low density polyethylene(LDPE)blends is stud ied. Influences of composition of the blends,shear ratio, temperature and shear stress on melt rheological behavior and viscosity are discussed. Non-Newtonian index (n ), melt flowing rate (MFR ) and mechanical properties of the blends with different proportions are measured. Theoretical basis for LBPE processing and application is provided.
出处
《中国塑料》
CAS
CSCD
北大核心
2002年第2期28-32,共5页
China Plastics
基金
河北省自然科学基金(批准号:201068)
河北省教育厅科研基金(批准号:2000105)资助
关键词
线性双峰聚乙烯
低密度聚乙烯
流变性
力学性能
linear bimodal polyethylene
low density polyethylene
rheological behavior
mechanical property
