Chemical Engineering Department, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, Canada; Department of Mechanical Engineering, University of Tehran, Tehran, Iran.
Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran; Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
Carbohydr Polym. 2018 Mar 15;184:376-382. doi: 10.1016/j.carbpol.2018.01.002. Epub 2018 Jan 2.
Nanocrystalline cellulose (NCC) a nature-based material, has gained significant attentions for its unique properties. The present study aims to investigate the flow behavior of cellulosic suspension containing non-wood pulp fibers and NCC, by means of rheological and pressure drop measurements. The NCC sample was prepared by sulfuric acid hydrolysis from Acacia mangium fibers. The rheological properties of kenaf/NCC suspensions were studied using viscosity and yield stress measurements. The pressure drop properties of the suspension flow were studied with respect to variation in flow velocity (0.4 m/s-3.6 m/s) and the NCC concentration (70 mg/l and 150 mg/l). The pressure drop results showed that the pulp suspension containing 150 mg/l NCC had higher drag reduction than kenaf suspension alone. The present insights into the flow of pulp/NCC suspension provide a new data and promote the application of NCC in industries.
纳米纤维素(NCC)是一种基于天然的材料,因其独特的性质而受到广泛关注。本研究旨在通过流变学和压降测量来研究含有非木材纸浆纤维和 NCC 的纤维素悬浮液的流动行为。NCC 样品是通过从银荆纤维中用硫酸水解制备的。使用粘度和屈服应力测量来研究麻纤维/NCC 悬浮液的流变性质。研究了悬浮液流动的压降特性,流速变化(0.4 m/s-3.6 m/s)和 NCC 浓度(70 mg/l 和 150 mg/l)。压降结果表明,含有 150 mg/l NCC 的纸浆悬浮液比单独的麻纤维悬浮液具有更高的减阻效果。本研究深入了解了纸浆/NCC 悬浮液的流动情况,提供了新的数据,并促进了 NCC 在工业中的应用。