Bio-Based Polyurethane Composites with Adjustable Fluorescence and Ultraviolet Shielding for Anti-Counterfeiting and Ultraviolet Protection

被引:0
作者
Zhai, Mengyao [1 ]
Shou, Tao [1 ]
Yin, Dexian [1 ]
Chen, Zhi [1 ]
Wu, Yaowen [1 ]
Liu, Yue [1 ]
Zhao, Xiuying [1 ,2 ]
Hu, Shikai [1 ,2 ]
Zhang, Liqun [1 ,2 ]
机构
[1] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
[2] Beijing Univ Chem Technol, Beijing Engn Res Ctr Adv Elastomers, Beijing 100029, Peoples R China
基金
中国国家自然科学基金;
关键词
biobased; polyurethane; fluorescence; ultraviolet shielding; anticounterfeiting;
D O I
10.1021/acsami.4c12183
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Polyurethane and its composites play an important role in innovative packing materials including anticounterfeiting and ultraviolet protection, however, they are mainly derived from petroleum resources that are not sustainable. In this study, a 100% biobased thermoplastic polyurethane (Bio-TPU) was synthesized using biobased poly(trimethylene ether) glycol, pentamethylene disocyanate, and 1,4-butanediol. Subsequently, biobased tannic acid (TA) was employed to prepare biobased composites. The structures and properties of Bio-TPU and its composites were systematically evaluated. The results showed that the Bio-TPU/TA composite films had excellent and controllable fluorescence and UV-shielding properties. The fluorescence colors of the Bio-TPU/TA composite films could be adjusted to blue, green, and yellow by varying the TA content and adding coupling agents. Moreover, the UV transmittance of the Bio-TPU/TA composites decreased from 79.25 to 5.43% below 400 nm with an increasing TA content, indicating an excellent ultraviolet-barrier performance. Consequently, biobased TPU/TA composite films can be utilized as innovative anticounterfeiting materials and UV-shielding protection films. This study is expected to facilitate sustainable development in the polyurethane industry and broaden the high-end applications of polyurethane such as fashion, electronics, food manufacturing, pharmaceuticals, and finance.
引用
收藏
页码:62606 / 62616
页数:11
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