Investigation of High Penetration and Dispersion of Functional Nanoparticles in Leather

IF 0.6 4区 工程技术 Q4 CHEMISTRY, APPLIED Journal of The American Leather Chemists Association Pub Date : 2023-09-01 DOI:10.34314/jalca.v118i9.8192
Ji-bo Zhou, Nan Sun, Xue-pin Liao, Bi Shi
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Abstract

The use of nanoparticle-based functional leather products has stimulated sustainable growth of the conventional leather industry. However, functional nanoparticles (FNPs) face challenges to be well penetrated and dispersed in leather because of their aggregation and mismatch charges with leather. In this study, the acrylic resin (AR) retanning agent, which was originally utilized in leather processing, was applied for the modification of FNPs. It has been demonstrated that AR can improve the electrostatic and steric repulsion among nanoparticles, inhibiting their aggregation and ensuring their penetration and dispersion in leather. Because of the limitation of leather porosity, the maximum loading amount for FNPs was about 40wt% (based on leather weight). The leather got higher results in fullness, thickening ratio, and tensile strength when the loading amount of FNPs was 11.25%. Moreover, the proposed approach in this study can be used well for other types of FNPs loaded in leather, suggesting its broad applicability.
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功能纳米粒子在皮革中的高渗透性和分散性研究
基于纳米粒子的功能性皮革产品的使用刺激了传统皮革业的可持续增长。然而,功能纳米粒子(FNPs)由于其聚集性和与皮革的电荷不匹配性,在皮革中的良好渗透和分散面临着挑战。本研究将原本用于皮革加工的丙烯酸树脂(AR)复鞣剂用于改性 FNPs。研究表明,AR 可以改善纳米粒子之间的静电和立体排斥,抑制其聚集,确保其在皮革中的渗透和分散。由于皮革孔隙率的限制,FNPs 的最大负载量约为 40wt%(基于皮革重量)。当 FNPs 的添加量为 11.25% 时,皮革的丰满度、增厚率和拉伸强度都得到了提高。此外,本研究提出的方法还可用于皮革中添加其他类型的 FNPs,这表明它具有广泛的适用性。
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来源期刊
Journal of The American Leather Chemists Association
Journal of The American Leather Chemists Association 工程技术-材料科学:纺织
CiteScore
1.30
自引率
33.30%
发文量
29
审稿时长
3 months
期刊介绍: The Journal of the American Leather Chemists Association publishes manuscripts on all aspects of leather science, engineering, technology, and economics, and will consider related subjects that address concerns of the industry. Examples: hide/skin quality or utilization, leather production methods/equipment, tanning materials/leather chemicals, new and improved leathers, collagen studies, leather by-products, impacts of changes in leather products industries, process efficiency, sustainability, regulatory, safety, environmental, tannery waste management and industry economics.
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