Modification of polymer blend properties by argon plasma/electron beam treatment: surface properties
Modification of polymer blend properties by argon plasma/electron beam treatment: surface properties
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DOI：
10.1016/s0254-0584(03)00092-0
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发表时间：
2003-05-26
影响因子：
4.6
通讯作者：
Gheorghiu, M
中科院分区：
文献类型：
--
作者：
Pascu, M;Vasile, C;Gheorghiu, M
研究了等规聚丙烯(IPP)/环氧改性木质素(LER)/甲基丙烯酸甘油酯接枝聚丙烯（PP-g-GMA）共混物在不同处理条件下的氩等离子体暴露和电子束轰击。通过接触角测量、紫外-可见（UV-Vis）椭偏仪、x射线光电子能谱（XPS）和偏振光光学显微镜观察了它们相对于未处理样品表面性质的变化。很明显，这两种处理类型都导致了暴露的聚合物薄膜上极性基团的掺入，这些基团负责其性质的所有观察到的改变。与等离子体暴露相比，电子束引起的效应更高。对等离子体辐照/电子束轰击共混聚合物的老化过程进行了跟踪研究，发现聚合物基体中LER含量不同，其老化行为也不同。(C) 2003 Elsevier Science B.V.版权所有
Blends of isotactic polypropylene (IPP)/epoxy-modified lignin (LER)/glycidyl methacrylate grafted polypropylene (PP-g-GMA) have been subjected to both argon plasma exposure and electron beam bombardment, for different treatment conditions. The changes of their surface properties with respect to the untreated samples have been followed by means of contact angle measurements, ultraviolet-visible (UV-Vis) ellipsometry, X-ray photoelectron spectroscopy (XPS), and optical microscopy in polarized light. It was obvious that both treatment types led to the incorporation of polar groups on the exposed polymer films, groups responsible for all the observed modifications in their properties. The effects induced by the electron beam are higher when compared with those attributed to plasma exposure. Aging of the plasma exposed/electron beam bombarded polymer blends has been followed, evidencing different behaviors depending on LER content in IPP matrix. (C) 2003 Elsevier Science B.V. All rights reserved.