木质磺酸钠基荧光碳量子点构筑皮革防伪层

doi:10.19677/j.issn.1004-7964.2023.06.003

皮革科学与工程 ›› 2023, Vol. 33 ›› Issue (6): 17-23.doi: 10.19677/j.issn.1004-7964.2023.06.003

木质磺酸钠基荧光碳量子点构筑皮革防伪层

申佳露^1,2, 林炜^1,2, 张金伟^1,2, 陈嘉怡^1,2, 辜海彬^1,2,*

1.四川大学制革清洁技术国家工程实验室四川成都 610065;
2.四川大学皮革化学与工程教育部重点实验室,四川成都 610065

收稿日期:2023-05-04 出版日期:2023-12-01 上线日期:2023-11-14
通讯作者: *辜海彬(1977-),男,教授,博士生导师,研究方向为生物质基功能材料、制革化学等。E-mail:guhaibing@scu.edu.cn。
作者简介:申佳露(1996-),男,博士研究生,研究方向为生物质化学与工程。E-mail:shenjialu@stu.scu.edu.cn。
基金资助:
国家自然科学基金项目(21978180)

Construction of Leather Anti-Counterfeiting Layer by Fluorescent Carbon Quantum Dots Prepared from Sodium Lignosulfonate

SHEN Jialu^1,2, LIN Wei^1,2, ZHANG Jinwei^1,2, CHEN Jiayi^1,2, GU Haibin^1,2,*

1. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China;
2. Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China

Received:2023-05-04 Online:2023-12-01 Published:2023-11-14

摘要/Abstract

摘要： 以木质磺酸钠(SL)为碳源,邻苯二胺(OPDA)为氮源,通过水热法制备得到了氮掺杂的荧光碳量子点(N-CQDs)。它具有类球形的微观形貌和良好的水溶性,在254 nm和365 nm紫外灯下分别发射出蓝紫色和青绿色的荧光,表现出双通道荧光发射性能。将N-CQDs与阳离子型皮革涂饰剂以1∶4的体积比共混后得到荧光乳液(N-CW_1-4),表现出良好的稳定性和分散性,平均水合粒径仅有42.3 nm,且同样表现出双通道荧光发射性能。N-CW_1-4作为荧光防伪涂层被成功应用于皮革防伪,其构建的防伪点阵图案不论是在高温(65 ℃)、低温(-21 ℃)还是连续紫外辐射(365 nm)下均表现出优异的荧光稳定性。此外,在模拟淋雨和滚筒洗衣场景内,该防伪点阵涂层仍然具有牢靠的稳定性,并且N-CW_1-4可被扩展到多种颜色皮革的防伪涂饰。研究为皮革防伪提供了新的方法和策略,对皮革市场的安全和良性发展具有积极意义。

关键词: 碳量子点, 木质磺酸钠, 荧光, 皮革, 防伪

Abstract: N-Doped fluorescent carbon quantum dots (N-CQDs) were prepared by hydrothermal method with sodium lignosulfonate as carbon source and O-phenylenediamine as nitrogen source. N-CQDs exhibited a spherical micro-morphology and good water-solubility, and could emit blue-violet and cyan-green fluorescence under 254 nm and 365 nm ultraviolet (UV) light, respectively, indicating the dual-channel fluorescence emission properties. A fluorescent emulsion (N-CW_1-4) was further prepared by blending N-CQDs with cationic leather finishing agent at a volume ratio of 1∶4. N-CW_1-4 possessed good stability and dispersion, and its average hydrated particle size was only 42.3 nm. Meanwhile, it could also exhibit the dual-channel fluorescence emission properties. N- CW_{1- 4} as a fluorescent anti- counterfeiting coating was successfully applied in the field of leather anti-counterfeiting. The resulting anti-counterfeiting lattice pattern exhibited excellent fluorescence stability at high temperature (65 ℃), low temperature (-21 ℃), and continuous UV radiation (365 nm). In addition, the fluorescent anti-counterfeiting coating was still stable in the simulated rain and roller washing scenes. N-CW_1-4 could also be extended to the anti-counterfeiting coatings with various colors of leather. This work provides a new method and strategy for leather anti-counterfeiting and has positive significance for the safety and benign development of leather market.

Key words: carbon quantum dots, sodium lignosulfonate, fluorescence, leather, anti-counterfeiting

中图分类号:

TQ127.1
TS57

申佳露, 林炜, 张金伟, 陈嘉怡, 辜海彬. 木质磺酸钠基荧光碳量子点构筑皮革防伪层[J]. 皮革科学与工程, 2023, 33(6): 17-23.

SHEN Jialu, LIN Wei, ZHANG Jinwei, CHEN Jiayi, GU Haibin. Construction of Leather Anti-Counterfeiting Layer by Fluorescent Carbon Quantum Dots Prepared from Sodium Lignosulfonate[J]. Leather Science and Engineering, 2023, 33(6): 17-23.

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木质磺酸钠基荧光碳量子点构筑皮革防伪层

Construction of Leather Anti-Counterfeiting Layer by Fluorescent Carbon Quantum Dots Prepared from Sodium Lignosulfonate

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