通过 SI-AGET ATRP 对纤维素纳米晶体进行表面改性及其在水性涂料中去除甲醛的应用。
Surface modification of cellulose nanocrystals via SI-AGET ATRP and application in waterborne coating for removing of formaldehyde.
机构信息
School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai, China.
School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai, China.
出版信息
Carbohydr Polym. 2022 Feb 1;277:118851. doi: 10.1016/j.carbpol.2021.118851. Epub 2021 Nov 4.
The hazardous indoor air pollutants of formaldehyde (HCHO) are harmful for human health. Nowadays, it is important to design and fabricate green and efficient HCHO removal materials for HCHO removal from polluted indoor air. In this manuscript, cellulose nanocrystals (CNCs) as green nanomaterials were successfully surface-initiated by 2-(methacryloyloxy)ethyl acetoacetate (MEAA) as functional monomer via surface-initiated Activator Generated by Electron Transfer Atom Transfer Radical Polymerization (SI-AGET ATRP) for the application in removal of HCHO. The employment of CNCs/Poly(2-(methacryloyloxy)ethyl acetoacetate) (CNCs@PMEAA) as nanocomposites were further implanted self-healing waterborne coating for an effective way to remove HCHO. From the result, the HCHO removal efficiency reached 97.5% of CNCs@PMEAA-type coating within 300 min at room temperature, which was much higher than that of the conventional coating (82.8%). This study provides some promising green methods for designing nanocomposite's waterborne coating to remove HCHO at room temperature.
室内空气污染物甲醛（HCHO）对人体健康有害。如今，设计和制造绿色高效的 HCHO 去除材料以去除污染室内空气中的 HCHO 非常重要。在本文中，成功地通过表面引发的电子转移原子转移自由基聚合（SI-AGET ATRP）将纤维素纳米晶体（CNCs）作为绿色纳米材料用 2-（甲基丙烯酰氧）乙基乙酰乙酸酯（MEAA）表面引发，作为功能单体，用于去除 HCHO。将 CNCs/聚（2-（甲基丙烯酰氧）乙基乙酰乙酸酯）（CNCs@PMEAA）纳米复合材料进一步植入自修复水性涂层中，作为去除 HCHO 的有效方法。结果表明，在室温下，300 分钟内，CNCs@PMEAA 型涂层的 HCHO 去除效率达到 97.5%，远高于传统涂层（82.8%）。该研究为设计纳米复合材料水性涂层以去除室温下的 HCHO 提供了一些有前途的绿色方法。
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