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首页> 外文期刊>Journal of Applied Polymer Science >Treatment of PET Nonwoven with a Water Vapor or Carbon Dioxide Plasma
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Treatment of PET Nonwoven with a Water Vapor or Carbon Dioxide Plasma

机译：水蒸气或二氧化碳等离子处理PET无纺布

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摘要

Gas plasma treatment of poly(ethylene terephthalate) nonwoven (NW-PET) was used to increase the hydrophilicity of single- and multilayer NW-PET. NW-PET was treated with a pulsatile CO_2 or with a pulsatile H_2O glow discharge. X-ray photoelectron spectroscopy (XPS) showed significantly more oxygen with CO_2 glow-discharge-treated NW-PET than with H_2O glow-discharge-treated-NW-PET surfaces. Moreover, the introduction rate of oxygen at a single layer of NW-PET was hgiher for a CO_2 than for a H_2O glow-discharge treatment. Titration data revealed significantly higher surface concentrations of carboxylic groups for CO_2 glow-discharge NW-PET than for H_2O glow-discharge-treated NW-PET. Mass spectrometry analysis revealed that the entire internal surface of a single layer of NW-PET was modified. XPS and contact measurements confirmed the modification of the incornal surface of multilayers of NW-PET. H_2O and CO_2 glow-discharge-treated substrates consisting of six layers of NW-PET had a nonuniform surface concentration of carboxylic acid groups as determined with titration experiments. The outside layers of the substrate contained a higher surface concentration of carboxylic acid groups than did the inside layers. XPS analysis and titration data showed that the rinsing of H_2O and CO_2 glow-discharge-treated NW-PET with water changed the surface composition considerably. Part of the carboxylic acid group-containing species were washed off.
机译：聚对苯二甲酸乙二酯非织造布（NW-PET）的气体等离子处理用于增加单层和多层NW-PET的亲水性。 NW-PET用脉冲CO_2或脉冲H_2O辉光放电处理。 X射线光电子能谱（XPS）显示，CO_2辉光放电处理的NW-PET表面的氧含量明显高于H_2O辉光放电处理的NW-PET表面的氧含量。此外，对于CO_2，单层NW-PET的氧气引入速率比H_2O辉光放电处理高。滴定数据表明，CO_2辉光放电NW-PET的羧基表面浓度明显高于H_2O辉光放电处理的NW-PET。质谱分析表明，单层NW-PET的整个内表面都经过了改性。 XPS和接触测量结果证实了NW-PET多层膜的角膜表面改性。由滴定实验确定，由六层NW-PET组成的H_2O和CO_2辉光放电处理的基材具有不均匀的羧酸基表面浓度。基材的外层比内层具有更高的羧酸基表面浓度。 XPS分析和滴定数据表明，用水冲洗H_2O和CO_2辉光放电处理的NW-PET大大改变了表面成分。洗掉一部分含羧酸基的物质。

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