Department of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614, Poznan, Poland.
Department of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614, Poznan, Poland.
Carbohydr Polym. 2019 Feb 15;206:742-748. doi: 10.1016/j.carbpol.2018.11.058. Epub 2018 Nov 19.
This article presents synthesis and properties of the fibers modified with luminescent, inorganic nanoparticles doped with lanthanide(III) ions, i.e. LaF:Ce, Gd, Eu; CeF:Tb and CePO:Tb. The fibers with luminescent properties were prepared via so called Lyocell process. This method involves dissolving cellulose in aqueous solution of N-methylmorpholine-N-oxide (NMMO) and a subsequent spinning of the fibers, using a dry-wet method. Thanks to the successful incorporation of the modifier nanoparticles (NPs) into the cellulose matrices, the fibers exhibited bright, multicolor emission upon UV irradiation and good mechanical properties, which allowed further textile processing. This type of fibers, as well as the as-prepared textiles/fabric can be used as an anti-counterfeiting agent for clothes and documents protection.
本文介绍了用掺镧（III）离子的发光无机纳米粒子修饰的纤维的合成和性能，即 LaF：Ce、Gd、Eu；CeF：Tb 和 CePO：Tb。具有发光性能的纤维是通过所谓的 Lyocell 工艺制备的。该方法涉及将纤维素溶解在 N-甲基吗啉-N-氧化物（NMMO）的水溶液中，并随后使用干湿纺丝法纺丝。由于成功地将改性剂纳米颗粒（NPs）掺入纤维素基质中，纤维在紫外光照射下表现出明亮的多色发射，并且具有良好的机械性能，这允许进一步进行纺织品加工。这种纤维以及制备的纺织品/织物可用作衣服和文件保护的防伪剂。
