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首页> 外文期刊>Journal of Cleaner Production >Effect of low-temperature oxygen plasma on the degumming of ramie fabric
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Effect of low-temperature oxygen plasma on the degumming of ramie fabric

机译:低温氧等离子体对麻织物脱胶的影响

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Ramie fiber is one of the most important materials for textile manufacturing. However, the conventional degumming processes for ramie involve numerous chemicals and water consumptions, resulting in a serious environmental concern. The purpose of this work is to investigate the effect of low-temperature oxygen plasma (LTP-O-2) treatment on ramie fabric degumming in combination with a subsequent mild wet chemical process. The oxygen plasma treatment variables such as oxygen gas pressure, discharge power and exposure time were investigated and optimized according to the indexes of fabric total impurity removal, whiteness, capillary rise height, tensile strength and elongation, etc. The results show that a notable effect of oxygen plasma on ramie degumming was observed in a subsequent mild wet chemical process. The fabric capillary rise height, whiteness, tensile strength and elongation of the pretreated ramie were improved with gas pressures from 20 Pa to 40 Pa, although accompying with a decrease tendency in impurity removal, as well as for the capillary rise height as pressures higher than 40 Pa. Furthermore, the fabric impurity removal, capillary rise height were enhanced with plasma discharge power from 30.0 W to 250.0 W, with less affects on fabric whiteness, tensile strength and elongation. Moreover, most of the degumming indexes were also improved as the exposure time from 1.0 min to 3.0 min, except for a worse deterioration of fabric tensile strength as an exposure time longer than 5.0 min. An optimized plasma process for ramie fabric degumming was at 4010 Pa of oxygen gas and 250.0 W of glow discharge for 3.0 min. In comparison with a control and conventional degumming processes, higher degumming effects and mechanical properties of ramie fabric were achieved by the combination degumming process with more environmentally friendly due to less consumption of chemicals, water and energy. Moreover, the effect of oxygen plasma on ramie fiber was further confirmed and characterized by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). (C) 2014 Elsevier Ltd. All rights reserved.
机译:ie麻纤维是纺织生产中最重要的材料之一。然而,用于麻的常规脱胶工艺涉及许多化学药品和水的消耗,导致严重的环境问题。这项工作的目的是研究低温氧等离子体(LTP-O-2)处理对麻织物脱胶的影响,并结合随后的温和湿化学工艺。根据织物总杂质去除率,白度,毛细上升高度,拉伸强度和伸长率等指标,对氧气等离子体处理变量如氧气压力,放电功率和暴露时间进行了研究和优化。结果表明,该方法效果显着。在随后的温和湿化学过程中观察到氧等离子体对ie麻脱胶的影响。在20 Pa至40 Pa的气压下,预处理麻的织物毛细上升高度,白度,拉伸强度和伸长率均得到改善,尽管伴随着杂质去除趋势的降低,以及压力高于20Pa时毛细上升高度也随之降低。 40 Pa。此外,等离子放电功率从30.0 W到250.0 W,可提高织物杂质的去除率和毛细管上升高度,对织物白度,拉伸强度和伸长率的影响较小。此外,随着脱胶时间从1.0分钟增加到3.0分钟,大多数脱胶指数也得到改善,但当接触时间超过5.0分钟时,织物的拉伸强度会恶化。麻织物脱胶的最佳等离子工艺是在4010 Pa的氧气和250.0 W的辉光放电下进行3.0分钟。与对照和常规脱胶工艺相比,由于减少了化学药品,水和能源的消耗,通过组合脱胶工艺实现了对ie麻织物更高的脱胶效果和机械性能,并且对环境更加友好。此外,通过X射线光电子能谱(XPS)和扫描电子显微镜(SEM)进一步证实了氧等离子体对麻纤维的影响。 (C)2014 Elsevier Ltd.保留所有权利。

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