摘要
利用凝胶渗透色谱仪(GPC)、差示扫描量热仪(DSC)和核磁共振波谱仪(NMR)等对2种进口双向拉伸聚乙烯(BOPE)薄膜专用料(SP3022和TF80)和国产茂金属线型低密度聚乙烯(mLLDPE)薄膜专用料(EZP2010HA)的结构和性能进行了分析对比。结果表明:与EZP2010HA相比,SP3022和TF80的熔体流动速率更低,相对分子质量及其分布更宽,密度、熔融温度、结晶温度、结晶度均更高,厚晶片含量更多,剪切黏度更小,更适合双向拉伸加工。
The structure and properties of two kinds of imported biaxially oriented polyethylene(BOPE)film speciality(SP3022 and TF80)and domestic metallocene linear low density polyethylene(mLLDPE)film speciality(EZP2010HA)were analyzed and compared by using gel permeation chromatography(GPC),differential scanning calorimeter(DSC),nuclear magnetic resonance spectrometer(NMR)and so on.The results show that compared with EZP2010HA,SP3022 and TF80 have lower melt flow rates,wider relative molecular weight and distribution,higher density,higher melting temperature,higher crystallization temperature,higher crystallinity,higher content of thick wafers,lower shear viscosity and are more suitable for biaxial stretching processing.
作者
关莉
杨帆
Guan Li;Yang Fan(Research Institute of CNPC Dushanzi Petrochemical Branch,Karamay,Xinjiang,833699;Xinjiang Laboratory of Rubber-Plastics Materials,Karamay,Xinjiang,833699)
出处
《现代塑料加工应用》
CAS
北大核心
2024年第1期52-55,共4页
Modern Plastics Processing and Applications
关键词
双向拉伸聚乙烯
共聚单体
热分级
晶片厚度
biaxially oriented polyethylene
copolymer monomer
thermal classification
wafer thickness
