低温大气压等离子体技术改性聚合物提高附着力的研究进展

IF 3.5 Q2 Materials Science

Reviews of Adhesion and Adhesives Pub Date : 2021-06-02 DOI:10.1002/9781119846703.CH19

H. Baniya, R. P. Guragain, D. Subedi

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引用次数: 19

摘要

综述了冷常压等离子体技术在聚合物表面处理中的应用成果。当暴露于大气压等离子体时，根据处理时间、施加电压、气体流速和与表面的距离，注意通过引入极性官能团而改变聚合物表面亲水性的结果。我们成功开发了一种等离子体装置，该装置能够使用高压电源在下游产生低温（20–26）°C的冷大气压氩等离子体，可广泛用于材料加工。因此，已经开发出一种具有潜在应用价值的在大气压下产生等离子体射流的成本效益高的系统。冷大气压等离子体射流（CAPPJ）近年来在材料加工、表面改性和生物医学材料加工等领域有着广泛的应用。CAPPJ由高压（0-20kV）和高频（20-30kHz）电源产生。放电已通过光学和电学方法进行了表征。为了表征冷气压氩等离子体射流，分别用功率平衡法、强度比法、斯塔克增宽法和玻尔兹曼图法测定了其电子密度、电子温度、旋转温度和振动温度。通过接触角测量、表面自由能分析、傅立叶变换红外光谱（FTIR）和扫描电子显微镜（SEM）表征了冷等离子体处理聚合物样品亲水性的改善。接触角分析表明，放电能有效地改善处理后聚合物的润湿性。此外，大气等离子体可以有效地用于去除表面污染和化学改性不同的聚合物表面。化学变化，特别是氧化和交联，增强了聚合物的表面性质。

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Cold Atmospheric Pressure Plasma Technology for Modifying Polymers to Enhance Adhesion: A Critical Review

This review summarizes the results of cold atmospheric pressure plasma technology application in polymers surface treatment. Attention is given to results of changes in the hydrophilic property of polymer surfaces by incorporation of polar functional groups when exposed to atmospheric pressure plasma, depending on the time of treatment, applied voltage, gas flow rate, and distance from the surface. We have successfully developed a plasma device that is able to generate cold atmospheric pressure argon plasma of low temperature (20 – 26) ° C downstream using a high-voltage power source which can be widely used in materials processing. Therefore, a cost-effective system of generating a plasma jet at atmospheric pressure with potential applications has been developed. Cold atmospheric pressure plasma jet (CAPPJ) has shown a lot of applications in recent years such as in materials processing, surface modification, and biomedical materials processing. CAPPJ has been generated by a high voltage (0-20 kV) and high frequency (20-30 kHz) power supply. The discharge has been characterized by optical and electrical methods. In order to characterize cold atmospheric pressure argon plasma jet, its electron density, electron temperature, rotational temperature, and vibration temperature have been determined using the power balance method, intensity ratio method, Stark broadening method, and Boltzmann plot method, respectively. The improvement in hydrophilicity of the cold plasma-treated polymer samples was characterized by contact angle measurements, surface free energy analysis, Fourier transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM). Contact angle analysis showed that the discharge was effective in improving the wettability of polymers after the treatment. Furthermore, atmospheric plasma can be effectively used to remove surface contamination and to chemically modify different polymer surfaces. The chemical changes, especially oxidation and cross-linking, enhance the surface properties of the polymers.

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来源期刊

Reviews of Adhesion and Adhesives MATERIALS SCIENCE, MULTIDISCIPLINARY-

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期刊介绍： With the explosion of research activity and reports, the need for concise and critical reviews of topics of contemporary research interest is manifest. Reviews of Adhesion and Adhesives (RAA) provides in-depth, incisive, illuminating and thought-provoking reviews written by subject matter experts covering all aspects of adhesion science and adhesive technology. Each review will be imbued with the author’s experience so that the reader will be able to assimilate the research in the area discussed easily and will be able to apply it in practice.The journal has relevance to a myriad of industries including textiles, printing, coatings, aerospace, medical, nanotechnology, biotechnology, building and construction, and microelectronics. The topics to be covered include, but not limited to, basic and theoretical aspects of adhesion; modeling of adhesion phenomena; mecha¬nisms of adhesion; surface and interfacial analysis and characterization; unraveling of events at interfaces; characterization of interphases; adhesion of thin films and coatings; adhesion aspects in reinforced composites; formation, characterization and durability of adhesive joints; surface preparation methods; polymer surface modification; biological adhesion; particle adhesion; adhesion of metallized plastics; adhesion of diamond-like films; adhesion pro¬moters; contact angle, wettability· and adhesion; superhydrophobicity and superhydrophilicity. With regard to adhesives, RAA will include, but not limited to, green adhesives; novel and high-performance adhesives; and medical adhesive applications.