摘要
用扫描电镜、偏光显微镜研究了具有优良刚性增韧高密度聚乙烯增韧母料(E-TMB)的相态结构和结晶形态.结果表明,E-TMB与简单共混母料对照样(E-SMB)具有不同的相态结构:E-SMB不具有香肠状结构,且存在明显的"空化"和"脱粘"现象,而E-TMB具有以HDPE为连续相,弹性体为分散相,分散相中包容有相当数量HDPE的胞状(香肠状)结构,其弹性体的分散性明显优于E-SMB;和纯HDPE相比,E-TMB的结晶细化,晶体数目增多;且随弹性体配比(M/N)的逐渐减小,晶粒尺寸逐渐减小,细化程度逐渐增强.
Using transmission electron microscope and polarizering light microscope,the phase structure and the crystalline morphology of the toughening master batch（E-TMB） of toughened HDPE with excellent rigidity were studied.The results show that there is different phase structure between the E-TMB and the simple blending master batch contrast（E-SMB）： E-SMB has not sausage structure,and there are ＂cavitation＂ and ＂debond＂ in it.But E-TMB has celluar structure（sausage structure）,in which HDPE is continuous phase,elastomer is dispersed phase,the dispersed phase contains considerable HDPE,the elastomer dispersibility of E-TMB＇s in HDPE is superior to E-SMB＇s.The crystallite size of E-TMB is remarkably smaller and the number of the crystal is obviously more than that of the pure HDPE.The crystallite size substantially reduces and the refined extend gradually increases with the elastomer ratio（M/N） decreasing.
出处
《郑州大学学报（工学版）》
CAS
北大核心
2011年第1期51-53,58,共4页
Journal of Zhengzhou University（Engineering Science）
基金
郑州市科技攻关计划资助项目(10PTGS484-8)
关键词
高密度聚乙烯
增韧母料
相态结构
结晶形态
HDPE
toughening master batch
phase structure
crystalline morphology
