Preparation and applications of chitosan and cellulose composite materials

2022 ◽  
Vol 301 ◽  
pp. 113850
Author(s):  
Teklit Gebregiorgis Ambaye ◽  
Mentore Vaccari ◽  
Shiv Prasad ◽  
Eric D. van Hullebusch ◽  
Sami Rtimi
Keyword(s):  
Composite Materials ◽  
Cellulose Composite

Mineral/microfibrillated cellulose composite materials: High performance products, applications, and product forms

TAPPI Journal ◽  
2018 ◽  
Vol 17 (09) ◽  
pp. 507-515 ◽  
Author(s):  
David Skuse ◽  
Mark Windebank ◽  
Tafadzwa Motsi ◽  
Guillaume Tellier
Keyword(s):  
Composite Materials ◽  
High Performance ◽  
Aqueous Suspension ◽  
Production Capacity ◽  
Cost Savings ◽  
Cost Effective ◽  
New Materials ◽  
Wet Strength ◽  
Product Forms ◽  
Cellulose Composite

When pulp and minerals are co-processed in aqueous suspension, the mineral acts as a grinding aid, facilitating the cost-effective production of fibrils. Furthermore, this processing allows the utilization of robust industrial milling equipment. There are 40000 dry metric tons of mineral/microfbrillated (MFC) cellulose composite production capacity in operation across three continents. These mineral/MFC products have been cleared by the FDA for use as a dry and wet strength agent in coated and uncoated food contact paper and paperboard applications. We have previously reported that use of these mineral/MFC composite materials in fiber-based applications allows generally improved wet and dry mechanical properties with concomitant opportunities for cost savings, property improvements, or grade developments and that the materials can be prepared using a range of fibers and minerals. Here, we: (1) report the development of new products that offer improved performance, (2) compare the performance of these new materials with that of a range of other nanocellulosic material types, (3) illustrate the performance of these new materials in reinforcement (paper and board) and viscosification applications, and (4) discuss product form requirements for different applications.

Chiroptical, morphological and conducting properties of chiral nematic mesoporous cellulose/polypyrrole composite films

2017 ◽  
Vol 5 (36) ◽  
pp. 19184-19194 ◽  
Author(s):  
Erlantz Lizundia ◽  
Thanh-Dinh Nguyen ◽  
Jose L. Vilas ◽  
Wadood Y. Hamad ◽  
Mark J. MacLachlan
Keyword(s):  
Composite Materials ◽  
Composite Films ◽  
Cellulose Nanocrystal ◽  
Chemical Polymerization ◽  
Chiral Nematic ◽  
Polypyrrole Composite ◽  
Surface Modified ◽  
Cellulose Composite

Conductive chiral nematic cellulose composite materials have been fabricated via in situ oxidative chemical polymerization of pyrrole onto surface-modified mesoporous cellulose nanocrystal (CNC) films.

Characterization of interfacial stress transfer ability of particulate cellulose composite materials

2011 ◽  
Vol 43 (11) ◽  
pp. 693-704 ◽  
Author(s):  
E. Kristofer Gamstedt ◽  
Robert Sandell ◽  
Fredrik Berthold ◽  
Torbjörn Pettersson ◽  
Niklas Nordgren
Keyword(s):  
Composite Materials ◽  
Stress Transfer ◽  
Interfacial Stress ◽  
Cellulose Composite

scholarly journals Novel Composite Materials for Chiral Separation from Cellulose and Barium Sulfate

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Wei Chen ◽  
Zhaoqun Wang ◽  
Xiaolin Xie ◽  
Xingping Zhou ◽  
Zheng-Wu Bai
Keyword(s):  
Aqueous Solution ◽  
Particle Size ◽  
Composite Materials ◽  
Barium Sulfate ◽  
Stationary Phases ◽  
Feed Ratio ◽  
Composite Particles ◽  
Enhancement Effect ◽  
Packing Materials ◽  
Cellulose Composite

Cellulose was dissolved in an aqueous solution of sodium hydroxide (NaOH) and urea followed by the addition of barium sulfate (BaSO4) to yield the BaSO4/cellulose composite particles. The morphology, particle size, and BaSO4content of the composite particles were adjusted by controlling the feed ratio of cellulose and BaSO4. The cellulose within the composite particles then reacted with 3,5-dimethylphenyl isocyanate. The resulting materials were utilized as the chiral stationary phases (CSPs) whose enantioseparation capabilities were evaluated by various chiral analytes. Due to the mechanical enhancement effect of BaSO4, the composite particles could be applied to the chromatographic packing materials.

scholarly journals Renewable Additives that Improve Water Resistance of Cellulose Composite Materials

2017 ◽  
Vol 5 (1) ◽  
pp. 1-13
Author(s):  
Heather L. Buckley ◽  
Caitlin H. Touchberry ◽  
Jonathan P. McKinley ◽  
Zachary S. Mathe ◽  
Hurik Muradyan ◽  
...  
Keyword(s):  
Composite Materials ◽  
Water Resistance ◽  
Improve Water Resistance ◽  
Cellulose Composite

Solvent infusion processing of all-cellulose composite materials

2012 ◽  
Vol 90 (1) ◽  
pp. 730-733 ◽  
Author(s):  
Tim Huber ◽  
Simon Bickerton ◽  
Jörg Müssig ◽  
Shusheng Pang ◽  
Mark P. Staiger
Keyword(s):  
Composite Materials ◽  
Cellulose Composite

Foam-formed cellulose composite materials with potential applications in sound insulation

2017 ◽  
Vol 52 (6) ◽  
pp. 747-754 ◽  
Author(s):  
P Nechita ◽  
S Năstac
Keyword(s):  
Composite Materials ◽  
Environmental Impact ◽  
Transmission Loss ◽  
Raw Materials ◽  
Sound Insulation ◽  
Low Density ◽  
Cellulose Fibres ◽  
Manufacturing Method ◽  
Cellulose Composites ◽  
Cellulose Composite

Use of foam-formed cellulose composite materials is a viable alternative that provides potential savings in terms of raw materials, energy and water compared with conventional methods for obtaining the fibrous composites. This new innovative manufacturing method leads to obtaining porous materials with low density and low environmental impact, which could replace the petroleum-based products in different industrial application fields like sound control. In this paper is presented a methodology for producing low-density cellulose composite materials in foam media. In this methodology a surfactant is mixed with cellulose fibres (from virgin pulp and recovered papers) at high shear velocity (2000 r/min) to entrain air, dewatered on Buchner funnel under low vacuum and air dried in non-restrained conditions. The obtained composite materials have been tested by sound insulation parameters (sound transmission loss and absorption coefficients) using two experimental impedance tubes with four-microphone configuration and anechoic termination. Three samples of foam-formed cellulose composites and one water-formed composite sample were obtained. Their sound insulation performances were compared with two different commercially available petroleum-based materials currently used in sound insulation applications (i.e. expanded/extruded polystyrene). The experimental results show comparable performances between foam-formed cellulose composites and polystyrene-based samples, but in terms of the environmental impact, these materials can be an appropriate green alternative which can cut the costs of recycling process.

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