Synthesis of nano cellulose fibers and effect on thermoplastics starch based films

Ni-P composite coatings were prepared on cellulose fiber surface via a simple electroless Ni-P approach. The metal-coated extent, dispersion extent of micro or nano cellulose fibers and crystalline structure of Ni-P composite coatings were investigated. The homogeneous hollow composite coatings and metal-coated extent of micro or nano cellulose fibers were improved with the increase in ultrasonic power, and the ideal composite coatings were obtained as ultrasonic up to 960 W. The metallization for cellulose fibers enhanced the dispersion extent of micro or nano cellulose fibers. A uniform coating, consisting of the hollow coating on cellulose fibers surface, could be obtained. At the same time, metallization did not damage the original structure and surface functional groups of cellulose fibers. The concentration of cellulose fibers and ultrasonic power had a direct influence on the metal-coated extent of cellulose fiber surface. The metal-coated extent, dispersion extent of micro or nano cellulose fibers and crystalline structure of Ni-P composite coatings exhibited excellent properties as the concentration of cellulose fibers and ultrasonic power were 2 g/L and 960 W, respectively.

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Effect of nano silica addition on enhancing the performance of cement composites reinforced with nano cellulose fibers

AIMS Materials Science ◽

10.3934/matersci.2019.6.864 ◽

2019 ◽

Vol 6 (6) ◽

pp. 864-883 ◽

Cited By ~ 4

Author(s):

Mohamed Samy El-Feky ◽

◽

Passant Youssef ◽

Ahmed Maher El-Tair ◽

Sara Ibrahim ◽

...

Keyword(s):

Cellulose Fibers ◽

Cement Composites ◽

Nano Silica ◽

Nano Cellulose ◽

Silica Addition

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Computational Simulation Tools to Support the Tissue Paper Furnish Management: Case Studies for the Optimization of Micro/Nano Cellulose Fibers and Polymer-Based Additives

Polymers ◽

10.3390/polym13223982 ◽

2021 ◽

Vol 13 (22) ◽

pp. 3982

Author(s):

Flávia P. Morais ◽

Ana M. M. S. Carta ◽

Maria E. Amaral ◽

Joana M. R. Curto

Keyword(s):

Case Studies ◽

Raw Materials ◽

Computational Simulation ◽

Cellulose Fibers ◽

Paper Properties ◽

Fiber Modification ◽

Simulation Tools ◽

Tissue Paper ◽

Nano Cellulose ◽

End Use

Tissue paper production frequently combines two main types of raw materials: cellulose fibers from renewable sources and polymer-based additives. The development of premium products with improved properties and functionalities depends on the optimization of both. This work focused on the combination of innovative experimental and computational strategies to optimize furnish. The main goal was to improve the functional properties of the most suitable raw materials for tissue materials and develop new differentiating products with innovative features. The experimental plan included as inputs different fiber mixtures, micro/nano fibrillated cellulose, and biopolymer additives, and enzymatic and mechanical process operations. We present an innovative tissue paper simulator, the SimTissue, that we have developed, to establish the correlations between the tissue paper process inputs and the end-use paper properties. Case studies with industrial interest are presented in which the tissue simulator was used to design tissue paper materials with different fiber mixtures, fiber modification treatments, micro/nano fibrillated cellulose, and biopolymer formulations, and to estimate tissue softness, strength, and absorption properties. The SimTissue was able to predict and optimize a broader range of formulations containing micro/nanocellulose fibers, biopolymer additives, and treated-fiber mixtures, saving laboratory and industrial resources.

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Mechanical performance and electromagnetic shielding effectiveness of composites based on Ag-plating cellulose micro-nano fibers and epoxy

Journal of Polymer Engineering ◽

10.1515/polyeng-2016-0132 ◽

2017 ◽

Vol 37 (8) ◽

pp. 805-813 ◽

Cited By ~ 2

Author(s):

Yu Wang ◽

Jin Tian Huang

Keyword(s):

Electromagnetic Wave ◽

Electromagnetic Interference ◽

Mechanical Performance ◽

Oxide Phase ◽

Cellulose Fibers ◽

Electromagnetic Shielding ◽

Shielding Effectiveness ◽

Emi Shielding Effectiveness ◽

Nano Cellulose ◽

Electromagnetic Shielding Effectiveness

Abstract Mechanical and electromagnetic interference shielding composites containing Ag-plating micro-nano cellulose fibers (ANCFs) were prepared as multifunctional materials. ANCFs, as electromagnetic wave reflection filler containing micro-nano cellulose fibers (NCFs) used as the structural component to reinforce the mechanical strength and Ag enhancing electromagnetic shielding effectiveness, were prepared by electroless Ag-plating technology on NCFs surfaces. Ag coating had a thickness of 60 µm without the oxide phase detected. The incorporation of 5 wt % ANCFs into epoxy (EP) substrate yielded impact strength and flexural strength of 1.84 kJ/m2 and 41.6 MPa, which is approximately 2.4 times and 1.41 times higher than EP. The ANCFs-EP composite performed an electromagnetic shielding effectiveness of 34–25 dB at a frequency of 90 kHz in the electromagnetic wave; the EMI shielding effectiveness was improved obviously up to 34 dB, which can meet the requirement of general places.

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