Maślana Klaudia, Sielicki Krzysztof, Wenelska Karolina, Kędzierski Tomasz, Janusz Joanna, Mariańczyk Grzegorz, Gorgon-Kuza Aleksandra, Bogdan Wojciech, Zielińska Beata, Mijowska Ewa
Department of Nanomaterials Physicochemistry, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastow Ave. 45, 70-311 Szczecin, Poland.
Arctic Paper Kostrzyn SA, ul. Fabryczna 1, 66-470 Kostrzyn nad Odra, Poland.
Polymers (Basel). 2023 Dec 29;16(1):110. doi: 10.3390/polym16010110.
Achieving the desired properties of paper such as strength, durability, and printability remains challenging. Paper mills employ calcium carbonate (CaCO) as a filler to boost paper's brightness, opacity, and printability. However, weak interaction between cellulose fibers and CaCO particles creates different issues in the papermaking industry. Therefore, this study explores the influence of various inorganic additives as crosslinkers such as mesoporous SiO nanospheres, TiO nanoparticles, h-BN nanoflakes, and hydroxylated h-BN nanoflakes (h-BN-OH) on inorganic fillers content in the paper. They were introduced to the paper pulp in the form of a polyethylene glycol (PEG) suspension to enable bonding between the inorganic particles and the paper pulp. Our findings have been revealed based on detailed microscopic and structural analyses, e.g., transmission and scanning electron microscopy, X-ray diffraction, Raman spectroscopy, and N adsorption/desorption isotherms. Finally, the inorganic fillers (CaCO and respective inorganic additives) content was evaluated following ISO 1762:2001 guidelines. Conducted evaluations allowed us to identify the most efficient crosslinker (SiO nanoparticles) in terms of inorganic filler retention. Paper sheets modified with SiO enhance the retention of the fillers by ~12.1%. Therefore, we believe these findings offer valuable insights for enhancing the papermaking process toward boosting the quality of the resulting paper.
实现纸张所需的性能，如强度、耐久性和可印刷性，仍然具有挑战性。造纸厂使用碳酸钙（CaCO）作为填料，以提高纸张的亮度、不透明度和可印刷性。然而，纤维素纤维与CaCO颗粒之间的弱相互作用在造纸工业中产生了不同的问题。因此，本研究探讨了各种无机添加剂作为交联剂，如介孔SiO纳米球、TiO纳米颗粒、h-BN纳米片和羟基化h-BN纳米片（h-BN-OH）对纸张中无机填料含量的影响。它们以聚乙二醇（PEG）悬浮液的形式引入纸浆中，以使无机颗粒与纸浆之间能够结合。我们的研究结果是基于详细的微观和结构分析得出的，例如透射和扫描电子显微镜、X射线衍射、拉曼光谱和N吸附/解吸等温线。最后，按照ISO 1762:2001指南评估无机填料（CaCO和相应的无机添加剂）含量。进行的评估使我们能够确定在无机填料保留方面最有效的交联剂（SiO纳米颗粒）。用SiO改性的纸张增强了填料的保留率，提高了约12.1%。因此，我们相信这些发现为改进造纸工艺以提高最终纸张的质量提供了有价值的见解。
