27-11-2012 | Yutaka Yoshida, Akira Isogai, Cellulose, 2012

A hardwood bleached kraft pulp (HBKP) was reacted with alkyl ketene dimer (AKD) under solvent-free and heterogeneous conditions, and a fibrous chloroform-insoluble fraction with a degree of substitution of AKD β-ketoester groups of 0.75 was obtained at a weight ratio of 95 % of the total ...

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26-11-2012 | Richard W. Hutchinson, Kavita George, Doug Johns, Lee Craven, Gary Zhang, Pullen Shnoda, Cellulose, 2012

Oxidized regenerated cellulose (ORC) has been used as an absorbable hemostat since World War II. In the present study, hemostasis time was determined in a spleen incision model in swine. The effect of mass on absorbable hemostat efficacy and hemostasis time was evaluated by standardizing the ...

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26-11-2012 | Peng Chen, Haipeng Yu, Yixing Liu, Wenshuai Chen, Xiaoqing Wang, Mi Ouyang, Cellulose, 2012

Chemical pretreatment combined with high-intensity ultrasonication was performed to disintegrate cellulose nanofibers from poplar wood powders. The cellulose content in each suspension was treated as the control variable because the suspension concentration significantly influences the ...

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26-11-2012 | Hannu Teisala, Mikko Tuominen, Milena Stepien, Janne Haapanen, Jyrki M. Mäkelä, Jarkko J. Saarinen, Martti Toivakka, ..., Cellulose, 2012

Titanium dioxide (TiO2) is a photoactive material with various interesting and useful properties. One of those is the perfect wettability of TiO2 surface after ultraviolet (UV) illumination. Wettability of a solid surface plays an important role in the field of printing, coating, and adhesion ...

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26-11-2012 | Eldho Abraham, B. Deepa, L. A. Pothan, Maya John, S. S. Narine, S. Thomas, R. Anandjiwala, Cellulose, 2012

Cellulose nanofibres (CNF) with diameter 10–60 nm were isolated from raw banana fibres by steam explosion process. These CNF were used as reinforcing elements in natural rubber (NR) latex along with cross linking agents to prepare nanocomposite films. The effect of CNF loading on the ...

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26-11-2012 | Teresa Matamá, Margarida Casal, Artur Cavaco-Paulo, Cellulose, 2012

In this work, the surface of cellulose, either Avicel or cotton fabric, was modified using cutinases without any previous treatment to swell or to solubilise the polymer. Aiming further improvement of cutinase ester synthase activity on cellulose, an engineered cutinase was investigated. ...

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26-11-2012 | Yihao Luan, Jin Wu, Maosheng Zhan, Jinming Zhang, Jun Zhang, Jiasong He, Cellulose, 2012

Using native cellulose as the starting material, cellulose acetate-graft-ploy (l-lactide) (CA-g-PLA) copolymers were successfully synthesized by “one-pot” process in an ionic liquid 1-allyl-3-methylimidazolium chloride (AmimCl). In this process, cellulose was first reacted with acetic ...

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26-11-2012 | Swambabu Varanasi, Warren J. Batchelor, Cellulose, 2012

Cellulose nanofibre sheet materials are of great interest in various applications because of their excellent properties, but are difficult to prepare rapidly and as large sheets. This paper describes a quick preparation procedure for preparing optically transparent, flat and smooth nanofibre ...

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19-11-2012 | Jelena Vasiljević, Marija Gorjanc, Brigita Tomšič, Boris Orel, Ivan Jerman, Miran Mozetič, Alenka Vesel, Barbara Sim ..., Cellulose, 2012

The surface modification of cellulose fibres was performed with the use of low-pressure water vapour plasma, followed by the application of a pad-dry-cure sol–gel coating with the water- and oil-repellent organic–inorganic hybrid precursor fluoroalkyl-functional siloxane (FAS), with the aim ...

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19-11-2012 | Deng-Guang Yu, Xiao-Yan Li, Xia Wang, Wei Chian, Yao-Zu Liao, Ying Li, Cellulose, 2012

Novel drug-loaded cellulose acetate (CA) nanofibres were prepared by a modified coaxial electrospinning process, after which their zero-order drug release profiles were determined. Using 2 % (w/v) unspinnable CA solution as a sheath fluid, coaxial electrospinning can be conducted smoothly to ...

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