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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research. B, Beam Interactions with Materials and Atoms >Modification of polymer membranes by ion implantation
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Modification of polymer membranes by ion implantation

机译：通过离子注入改性聚合物膜

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摘要

This paper presents an experimental study of the transport properties of ion implanted isotactic polypropylene (iPP) polymer membranes. The polymer samples have been irradiated with O~(7+), S~(9+) and F~(6+) ions having the energy 10 keV/q with fluence up to 10~(16) ions/cm~2. In this experiments the incident ions were produced by the ECR ion source. The transport properties (diffusive permeability), changes of the chemical structure and wettability of ion implanted membranes were investigated. The transport properties were studied by measurements of the solute concentration profiles. The changes of the chemical structure were investigated by the differential scanning calorimetry (DSC) ther-mograms and the atom force microscopy (AFM) images measurements. Finally, the wettability - by the contact-angles methods. The results of the AFM imaging show that ion implantation induce changes in surface topography of polypropylene samples. The degree of crystallinity of iPP foils is decreased by ion implantation. The hydrophilicity of the modified iPP is increased considerably in comparison to the unimplanted foils. Also the hysteresis in the contact-angle gives some indication about the surface roughness or composition. The behavior of the iPP membranes modified by ion implantation shows greater permeability for transported substance.
机译：本文介绍了离子注入等规聚丙烯（iPP）聚合物膜的传输特性的实验研究。用能量为10 keV / q的O〜（7 +），S〜（9+）和F〜（6+）离子辐照聚合物样品，注量最高为10〜（16）离子/ cm〜2。在该实验中，入射离子是由ECR离子源产生的。研究了离子注入膜的传输性能（扩散渗透率），化学结构的变化和润湿性。通过测量溶质浓度曲线研究了传输性质。通过差示扫描量热法（DSC）热像图和原子力显微镜（AFM）图像测量研究了化学结构的变化。最后，润湿性-通过接触角方法。原子力显微镜成像的结果表明，离子注入引起聚丙烯样品表面形貌的变化。 iPP箔的结晶度会因离子注入而降低。与未植入的箔相比，改性iPP的亲水性大大提高。接触角的磁滞也给出了有关表面粗糙度或组成的一些指示。通过离子注入改性的iPP膜的行为显示出对转运物质的更大渗透性。

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