含湿强树脂的改进漂白桉木硫酸盐纸浆基薄纸

IF 2.2 3区 农林科学 Q2 FORESTRY Holzforschung Pub Date : 2023-08-03 DOI:10.1515/hf-2023-0007
Marina Matos, Ana M. M. S. Carta, P. Pinto, D. Evtuguin
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引用次数: 0

摘要

常见的生活用纸生产趋势是用硬木纸浆部分或全部替代软木纸浆,如漂白桉树硫酸盐纸浆(BEKP),以优化工艺和最终产品的性能,如柔软性。然而,使用单一类型的硬木纤维会导致湿网和干网的强度降低。为了保持必要的强度和所需的性能,通常需要加入几种添加剂。在这种情况下,低分子量聚乙二醇(PEG)和不同的湿强度树脂,如聚酰胺-环氧氯丙烷(PAE)和乙草酸化聚丙烯酰胺(GPAM)树脂结合在一起,获得了性能更好的创新产品。特别是,当PEG与湿强树脂组合时,湿、干拉伸强度显著提高,特别是在PAE树脂、高电荷阳离子剂和大量应用PEG水溶液制备的生活用纸中。值得注意的是,无论使用何种应用方法(散装或喷雾),PEG掺入对纸巾的吸水能力和柔软度都没有严重影响。
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Improved bleached eucalyptus kraft pulp-based tissue papers incorporating wet-strength resins
Abstract Common tissue paper manufacturing trends aim at partial or total replacement of softwood pulp with hardwood pulp for its production, such as bleached eucalyptus kraft pulp (BEKP), in order to optimize the process and the final product properties such as softness. However, the use of a single type of hardwood fiber results in lower strengths of both wet and dry webs. To maintain necessary strength and desired properties, the incorporation of several additives is often required. In this context, low molecular weight polyethylene glycol (PEG) and different wet strength resins, such as polyamideamine-epichlorohydrin (PAE) and glyoxalated polyacrylamide (GPAM) resins, were combined to achieve an innovated product with improved properties. In particular, wet and dry tensile strength was significantly improved when combining PEG and wet strength resins, especially observed in tissue papers prepared with PAE resin, high-charge cationic agent and bulk applied aqueous PEG solution. Noteworthy that water absorption capacity and softness of tissue paper were not critically affected by PEG incorporation, regardless of application method used (in bulk or by spray).
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来源期刊
Holzforschung
Holzforschung 工程技术-材料科学:纸与木材
CiteScore
4.60
自引率
4.20%
发文量
83
审稿时长
3.3 months
期刊介绍: Holzforschung is an international scholarly journal that publishes cutting-edge research on the biology, chemistry, physics and technology of wood and wood components. High quality papers about biotechnology and tree genetics are also welcome. Rated year after year as one of the top scientific journals in the category of Pulp and Paper (ISI Journal Citation Index), Holzforschung represents innovative, high quality basic and applied research. The German title reflects the journal''s origins in a long scientific tradition, but all articles are published in English to stimulate and promote cooperation between experts all over the world. Ahead-of-print publishing ensures fastest possible knowledge transfer.
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