挤出型PB-1/LLDPE共混合金的结构与性能  

Structure and Properties of PB-1/LLDPE Extruding Blends Alloy

作　　者：陈素兰[1] 李树材[1] 尚翠[1] 刘娜[1] 

机构地区：[1]天津科技大学材料科学与化学工程学院,天津300457

出　　处：《塑料》2015年第3期42-44,共3页Plastics

摘　　要：采用Brabender单螺杆挤出机熔融共混挤出制备聚丁烯-1/线性低密度聚乙烯(PB-1/LLDPE)共混合金,借助扫描电镜、偏光显微镜、差示扫描量热仪、电子万能试验机等分别对共混合金的相结构、结晶和力学性能进行了研究。结果表明:共混合金中PB-1与LLDPE相之间具有一定的相互作用;LLDPE的添加导致PB-1晶体的细化,并提高了两组分结晶的完善性,拉伸强度与这两组分拉伸强度的线性加和值相近。The blends of polybutene-1 and linear low density polyethylene （PB-1/LLDPE） were prepared by melt blending through brabender single screw extruder. Morphology, crystallization and mechanical properties were studied via scanning electron microscope （SEM） , polarized optical microscopy （POM） , differential scanning calorimeter （DSC） and mechanical testing machines, respectively. The results showed that PB-1 and LLDPE phases in the blends had some interaction. After adding the LLDPE, the PB-1 formed small crystal and the crystal of two components became perfect, the tensile strength of the blends was closed to the values obtained by the linear addition method.

关 键 词：聚丁烯-1 线性低密度聚乙烯 共混合金 形态 力学性能 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]