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| 1 | Sustainable and invisible anti-counterfeiting inks based on waterborne polyurethane and upconversion nanoparticles for leather products显示文摘Counterfeit leather products infringe the intellectual property rights of the business,cause enormous economic loss,and negatively influence the business enthusiasm for innovation.However,traditional anti-counterfeiting materials for leather products suffer from complicated fabrication procedures,photobleaching,and high volatile organic com-pound(VOC)emissions.Here,a sustainable and invisible anti-counterfeiting ink composed of waterborne polyure-thane and water-dispersible lanthanide-doped upconversion nanoparticles(UCNPs)featuring ease of preparation,high photostability,non-toxicity,low VOC emissions,and strong adhesion strength for leather products is designed and synthesized.After decorating on the surface of leather products,the obtained patterns are invisible under normal light conditions.Upon irradiation at 808 nm,the invisible patterns can be observed by naked eyes due to the visible light emitted by 808 nm excited UCNPs.Our approach described here opens a new pathway to realize the long-term,stable anti-counterfeiting function of leather products. | Jun Xiang Jianxun Lin Zhonghui Wang Shenglin Zhou Zhenya Wang Qiang Yan Yidong Liu Haojun Fan | 2021 | Journal of Leather Science and Engineering2021，3，1： | 4 |
| 2 | Epoxidized methyl ricinoleate bio-plasticizer with a pendant acetate ester for PVC artificial material:circumventing existing limit on achievable migration resistance显示文摘Processing polyvinyl chloride(PVC)artificial material requires plasticizer that softens the PVC coating.Currently,utilizing unsaturated fatty acid methyl esters to obtain epoxidized fatty acid methyl ester(EFAME)bio-plasticizers constitutes an environmentally responsible solution to substitute conventional ortho-phthalates that are endocrine disruptors or probable carcinogens.However,commercial EFAMEs,even with the highest epoxy value(ca.5.5-5.8%)so far,still suffer from fast leaching from the PVC matrix,burdening the environment and shortening lifespan of the artificial material.Here,we report a proof-of-principle demonstration of a new strategy to obtain migration-resistant EFAME that harnesses the midchain hydroxyl of methyl ricinoleate and covalently attachment of a pendant acetate ester.Despite a low epoxy value(3.0%),the engineered bio-plasticizer displays significantly suppressed migration in multiple scenarios compared with one conventional EFAME with much higher epoxy value(5.8%).Circumventing the limit confronting previous strategy that highlights the sole contribution of epoxy value to achievable migration resistance,the rationale herein may provide guidance for designing new EFAMEs with comparable performance to ortho-phthalates,thus bringing the old and oft-maligned PVC artificial material industry one step closer to sustainability. | Siyu Pan Delong Hou Gaofu Yang Qiuping Xie Sunxian Yan Qi Zeng Zhonghui Wang Yi Chen Haojun Fan | 2019 | Journal of Leather Science and Engineering2019，1，1： | 3 |
| 3 | Novel side-chain liquid- crystalline polyimide for film materials 显示文摘 | FAN Haojun GU Yi XIE Meili | 2003 | J Polym Sci Part A: PolymChem2003，41，4： | 1 |
| 4 | The polyurethane membranes with temperature sensitivity for water vapor permeation显示文摘 | Chen Yi Liu Yan Fan Haojun | 2007 | Journal of Membrane Science2007，287，2： | 1 |
| 5 | Waterborne polyurethane/O-MMT nanocomposites for flame retardant leather finishing 显示文摘 | Zhang Xiuli Chen Yi Fan Haojun | 2010 | Journal of the Society of Leather Technologists and Chemists2010，94，2： | 1 |
| 6 | The polyurethane membranes with tem- perature sensitivity for water vapor permeation 显示文摘 | Chen Yi Liu Yan Fan Haojun | 2007 | Journal of Membrane Science2007，287，： | 1 |
| 7 | Tanning characteristics and tanning mechanism of nano - SiO2 显示文摘 | Fan Haojun Shi Bi He Qiang | 2004 | Journal of the Society of Leather Technologies and Chemists2004，88，4： | 1 |
| 8 | Characteristics of leather tanned with nano - SiO2显示文摘 | Fan Haojun Li Ling Shi Bi | 2005 | Journal tithe American Leather Chemists Association2005，100，1： | 1 |
| 9 | Tanning characteristics and Tanning Mechanism of Nano - SiO2 显示文摘 | Fan Haojun Shi Bi He Qiang | 2004 | Journal of the Society of Leather Technologists and Chemists2004，88，4： | 1 |
| 10 | The polyurethane membranes with temperature sensitivity for water vapor permeation显示文摘 | Chen Yi Liu Yan Fan Haojun | 2007 | J Membr Sci2007，287，2： | 1 |
| 11 | Fluorine- containing aqueous copoly- mer emulsion for waterproof leather 显示文摘 | Luo Zhaoyang Fan Haojun Lu Yan | 2008 | Journal of the Society of Leather Technol- ogists and Chemists2008，92，3： | 1 |
| 12 | 显示文摘 | Fan Haojun Gu Yi | 2003 | J Polym Sci: Polym Chem2003，41，4： | 1 |
| 13 | Tanning Characteristics and tanning mechanism of leather Tanned with of Nano-SiO2 显示文摘 | Haojun Fan Ling Li Bi Shi | 2004 | The Journal of the Society of Leather Technologists and Chemists2004，88，4： | 1 |
| 14 | A novel pre-tanning agent for high exhaustion chromium tannage 显示文摘 | Luan Shifang Liu Yan Fan Haojun | 2007 | JSLTC2007，91，4： | 1 |
| 15 | Waterborne polyurethane/O-MMT nanocomposites for flame retardant leather finishing显示文摘 | Zhang Xiuli Chen Yi Fan Haojun Shi Bi | | 0，，02： | 1 |
| 16 | The water vapor permeability of leather finished by thermal-responsive polyurethane显示文摘 | FAN Haojun LI Ling FAN Xinnian | 2005 | Journal of the Society of Leather Technologists and Chemists2005，，1： | 1 |
| 17 | The polyurethane membranes with temperature sensitivity for water vapor permeation显示文摘 | Chen Yi Liu Yan Fan Haojun | 2007 | Journal of Membrane Science2007，287，2： | 1 |
| 18 | High Stability organic Tanning Using Plant Polyphenol 显示文摘 | Shi Bi He Youjie Fan Haojun | 1998 | JSLTC1998，83，4： | 1 |
| 19 | Modification of collagen for high Cr (Ⅲ) adsorption 显示文摘 | Luo Zhaoyang Zhang Xiuli Fan Haojun | 2009 | Journal of the A- merican Leather Chemists Association2009，104，4： | 1 |
| 20 | Thermo-Sensitive Polyurethane Membrane with Controllable Water Vapor Permeation for Food Packaging显示文摘 | Hu Zhou Huanhuan Shi Haojun Fan Jian zhou and Jixin Yuan | 2009 | Macromolecular Research2009，17，7： | 1 |
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