| Title: | Preparation of a Novel Formaldehyde-Free Impregnated Decorative Paper Containing MnO(2) Nanoparticles for Highly Efficient Formaldehyde Removal |
| Author(s): | Liu R; Liang M; Xu J; Sun Y; Long L; Zhu L; Lv B; Yang B; Ni Y; |
| Address: | "Research Institute of Wood Industry, Chinese Academy of Forestry Haidian, 100091 Beijing, China. Department of Chemical Engineering, University of New Brunswick, Fredericton NBE3B5A3, Canada" |
| Journal Title: | ACS Appl Mater Interfaces |
| ISSN/ISBN: | 1944-8252 (Electronic) 1944-8244 (Linking) |
| Abstract: | "The loading of catalytic manganese dioxide (MnO(2)) nanoparticles onto an impregnated decorative paper has been an effective method for the removal of indoor formaldehyde (HCHO) pollutants. However, its preparation can present numerous challenges, including instability in dipping emulsions and leaching. In this investigation, a novel and stable formaldehyde-free polyacrylate dipping emulsion containing MnO(2) particles was prepared and then back-coated on a decorative paper. To improve the dispersion and fixation, the MnO(2) was modified with silane. HCHO can undergo physical adsorption on the cellulosic fibers present in the paper, while it can also undergo chemical degradation into CO(2) within the MnO(2) groups. The silane not only enhanced the interfacial adhesion to a polyacrylate resin but also increased the interlayer distance, thereby creating a larger space for HCHO absorption. The impregnated decorative paper back-coated with 10 wt % of silane-modified MnO(2) exhibited a removal efficiency of approximately 90% for HCHO at 20 degrees C. The removal rate further improved to approximately 100% when the temperature was increased to 60 degrees C. Moreover, it is worth noting that the release of volatile organic compounds was exceptionally minimal. Additionally, the particleboard bonded with this impregnated decorative paper exhibited an extremely low emission of HCHO, with a value that approached 0 mg.L(-1). Furthermore, the bonding strength of the surface remained unaffected. Therefore, this study provides a simple and eco-friendly method for effectively removing HCHO, which can enhance indoor air quality" |
| Keywords: | MnO2 catalytic oxidation formaldehyde impregnated decorative paper silane coupling agent; |
| Notes: | "PubMed-not-MEDLINELiu, Ru Liang, Min Xu, Jianfeng Sun, Yuhui Long, Ling Zhu, Liming Lv, Bin Yang, Bohan Ni, Yonghao eng 2023/07/18 ACS Appl Mater Interfaces. 2023 Jul 26; 15(29):34941-34955. doi: 10.1021/acsami.3c05791. Epub 2023 Jul 18" |
