Graft copolymerization of HEMA on LLDPE films activated by low-energy electrons

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL Radiation Physics and Chemistry Pub Date : 2025-04-01 Epub Date: 2025-01-04 DOI:10.1016/j.radphyschem.2024.112507

Yue Qi , Marco Drache , Uwe Gohs , Maik Gude , Kathrin Harre , Oliver Höfft , Xiuqin Zhang

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Abstract

Hydroxyethyl methacrylate (HEMA) grafted linear low-density polyethylene (LLDPE) films were prepared via pre-treatment method. The non-polar LLDPE films were activated by low-energy electron beam (EB) treatment in vacuum and air at room temperature. The influence of the atmosphere during the EB activation of LLDPE films at fixed dose rate and dose per pass on the grafting process at room temperature were studied at well-selected grafting conditions. Non-polar LLDPE and polar HEMA were selected due to their significant differences in polarity and surface energy. After identification of the optimum atmosphere during low-energy EB activation of LLDPE films, the influence of well-known grafting parameters such as temperature and solvent was studied. The grafting effect of the EB pre-treatment method was investigated by the Relative Grafting Yield (RGY), the static contact angle measurement, the Attenuated Total Reflectance Fourier Transform Infrared spectroscopy, X-ray photoelectron spectroscopy, Scanning Electron Microscopy, and Thermogravimetric analysis.

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低能电子激活下HEMA在LLDPE薄膜上的接枝共聚

采用预处理法制备了甲基丙烯酸羟乙酯（HEMA）接枝线性低密度聚乙烯（LLDPE）薄膜。采用低能电子束（EB）在真空和室温空气中活化非极性LLDPE薄膜。在选定的接枝条件下，研究了室温下固定剂量率和单次剂量下LLDPE膜EB活化过程中气氛对接枝过程的影响。选择非极性LLDPE和极性HEMA是因为它们的极性和表面能有显著差异。在确定了LLDPE薄膜低能EB活化的最佳气氛后，研究了已知接枝参数如温度、溶剂等对LLDPE薄膜低能EB活化的影响。通过相对接枝率（RGY）、静态接触角测量、衰减全反射傅立叶变换红外光谱、x射线光电子能谱、扫描电镜和热重分析考察了EB预处理方法的接枝效果。

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.