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首页> 外文会议>SPE Annual Technical Conference >A Novel Characterization Method for Investigating the Morphology of Polymer Blends Including Polyolefin/Polyolefin Blends
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A Novel Characterization Method for Investigating the Morphology of Polymer Blends Including Polyolefin/Polyolefin Blends

机译：研究具有聚烯烃/聚烯烃共混物的聚合物共混物形态的一种新的表征方法

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摘要

A new characterization method for investigating the morphology of polymer blends was proposed in this paper. This new technique involves cryo-microtoming, plasma etching in the presence of oxygen gas and SEM observation. In binary and ternary polymer blending systems, the SEM observation has been generally performed on the fracture surfaces treated or untreated with etching chemicals. It has known that the fractured surface does not always give clear interfaces between blending components, specifically in compatible polymer blends. For chemical etching, it is very difficult to find a proper solvent for the selective etching when the solubility parameters of the blending components are similar each other. However, the plasma etching technique proposed in this study gives us very clear contrast on the interface because of the different susceptibility of polymers to the oxygen plasma. Therefore, various ternary polymer blends having encapsulated morphology were successfully characterized. It should be noted that this technique was also applied for the morphological characterization of polyolefin/polyolefin blends including PP/HDPE, PP/LDPE, and LLDPE/LDPE blends.
机译：本文提出了一种研究了研究聚合物共混物形态的新表征方法。这种新技术涉及在存在氧气和SEM观察的存在下进行低温微量矩形，等离子体蚀刻。在二元和三元聚合物混合系统中，SEM观察通常在用蚀刻化学物质处理或未治疗的裂缝表面上进行。已知破裂表面并不总是在混合组分之间提供透明的界面，特别是在相容的聚合物共混物中。为了化学蚀刻，当混合组分的溶解度参数相似时，很难找到用于选择性蚀刻的适当溶剂。然而，该研究中提出的等离子体蚀刻技术使我们在界面上非常清楚地对比，因为聚合物与氧等离子体的易感性不同。因此，成功表征了具有包封形态的各种三元聚合物共混物。应当注意，该技术也应用于包括PP / HDPE，PP / LDPE和LLDPE / LDPE共混物的聚烯烃/聚烯烃共混物的形态学特征。

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