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Improved de-inking of inkjet-printed paper using environmentally friendly atmospheric pressure low temperature plasma for paper recycling

机译:使用环保的大气压低温等离子体改善喷墨打印纸的脱墨能力以实现纸张回收

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摘要

Nowadays, due to environmental pollution and natural energy consumption caused by waste paper, many researches are being conducted on the reuse of printed-paper. To recycle the paper, de-inking has to be performed. In this article, in order to reduce the use of the commonly used de-inking chemicals, the effect of an atmospheric pressure helium plasma treatment on the de-inking enhancement of printed-paper is studied. Through colorimeter and UV-visible spectrometer measurements the plasma treatment is shown to speed up the de-inking. While SEM observations and FTIR measurements suggest that the paper quality is retained upon plasma treatment, the increase of surface hydrophilicity measured by water contact angle measurements, compared to non-treated paper, is believed to enhance the fiber swelling of the paper and lead to a faster ink removal.
机译:如今,由于废纸造成的环境污染和自然能源消耗,对印刷纸的再利用进行了许多研究。要回收纸张,必须执行脱墨。在本文中,为了减少常用脱墨剂的使用,研究了大气压氦等离子体处理对印刷纸脱墨效果的影响。通过色度计和紫外可见光谱仪的测量,显示出等离子体处理可加快脱墨速度。尽管SEM观察和FTIR测量表明,等离子处理后纸张质量得以保留,但与未处理的纸张相比,通过水接触角测量所测得的表面亲水性的增加被认为可增强纸张的纤维溶胀并导致纸的纤维膨胀。更快地去除墨水。

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