Electrospun cellulose fiber-reinforced UV-curable composites with tunable properties

2022 ◽  
Vol 176 ◽  
pp. 114306
Author(s):  
Mindaugas Bulota ◽  
Darius Ciuzas ◽  
Edvinas Krugly ◽  
Ingrida Pauliukaityte ◽  
Odeta Baniukaitiene ◽  
...  
Keyword(s):  
Cellulose Fiber ◽  
Fiber Reinforced ◽  
Uv Curable ◽  
Tunable Properties

scholarly journals Cellulose fiber-reinforced thermosetting composites: impact of cyanoethyl modification on mechanical, thermal and morphological properties

2018 ◽  
Vol 76 (8) ◽  
pp. 4295-4311 ◽  
Author(s):  
Md Rezaur Rahman ◽  
Sinin Hamdan ◽  
Zainab Binti Ngaini ◽  
Elammaran Jayamani ◽  
Akshay Kakar ◽  
...  
Keyword(s):  
Cellulose Fiber ◽  
Morphological Properties ◽  
Fiber Reinforced

scholarly journals High-Strength Regenerated Cellulose Fiber Reinforced with Cellulose Nanofibril and Nanosilica

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2664
Author(s):  
Yu Xue ◽  
Letian Qi ◽  
Zhaoyun Lin ◽  
Guihua Yang ◽  
Ming He ◽  
...  
Keyword(s):  
Cellulose Nanofibrils ◽  
Cellulose Fiber ◽  
High Strength ◽  
Composite Fiber ◽  
Regenerated Cellulose ◽  
Fiber Reinforced ◽  
Physical Strength ◽  
Nano Sio2 ◽  
Shear Thinning Fluids ◽  
Regenerated Fibers

In this study, a novel type of high-strength regenerated cellulose composite fiber reinforced with cellulose nanofibrils (CNFs) and nanosilica (nano-SiO2) was prepared. Adding 1% CNF and 1% nano-SiO2 to pulp/AMIMCl improved the tensile strength of the composite cellulose by 47.46%. The surface of the regenerated fiber exhibited a scaly structure with pores, which could be reduced by adding CNF and nano-SiO2, resulting in the enhancement of physical strength of regenerated fibers. The cellulose/AMIMCl mixture with or without the addition of nanomaterials performed as shear thinning fluids, also known as “pseudoplastic” fluids. Increasing the temperature lowered the viscosity. The yield stress and viscosity sequences were as follows: RCF-CNF2 > RCF-CNF2-SiO22 > RCF-SiO22 > RCF > RCF-CNF1-SiO21. Under the same oscillation frequency, G’ and G” decreased with the increase of temperature, which indicated a reduction in viscoelasticity. A preferred cellulose/AMIMCl mixture was obtained with the addition of 1% CNF and 1% nano-SiO2, by which the viscosity and shear stress of the adhesive were significantly reduced at 80 °C.

Development of fiber reinforced concrete repair materials

2006 ◽  
Vol 33 (2) ◽  
pp. 126-133 ◽  
Author(s):  
N Banthia ◽  
R Gupta ◽  
S Mindess
Keyword(s):  
British Columbia ◽  
Reinforced Concrete ◽  
Cellulose Fiber ◽  
Fiber Reinforced Concrete ◽  
Test Method ◽  
Fiber Reinforced ◽  
Parking Garage ◽  
Shrinkage Cracking ◽  
University Of British Columbia ◽  
Repair Materials

Early age shrinkage cracking remains a critical concern for cement-based repairs and overlays. Fibers mitigate such cracking, but no standardized technique of assessing the performance of a given fiber exists. Recently, a novel technique of making such an assessment was developed at The University of British Columbia (UBC). In this test method, currently being balloted through the ASTM, an overlay of fiber reinforced concrete (FRC) material to be tested is cast directly on a fully matured sub-base with protuberances, and the entire assembly is subjected to controlled drying. Cracking in the overlay is then monitored and characterized. The technique was recently employed to develop "crack-free" overlay materials for two repair sites. One was a parking garage in Downtown Vancouver, British Columbia, and the other was the plaza deck at The UBC Aquatic Center. For the parking garage, a carbon fiber reinforced concrete and for the plaza deck, a cellulose fiber reinforced concrete were developed. Both overlays were instrumented with strain sensors and data were monitored over the Internet.Key words: fiber reinforced concrete, shrinkage cracking, strain monitoring, carbon fibers, cellulose fibers.

Cellulose Fiber Reinforced Starch-Based Foam Composites

2007 ◽  
Vol 1 (3) ◽  
pp. 360-366 ◽  
Author(s):  
Gregory M. Glenn ◽  
Artur Klamczynski ◽  
Kevin M. Holtman ◽  
Bor-Sen Chiou ◽  
William J. Orts ◽  
...  
Keyword(s):  
Cellulose Fiber ◽  
Fiber Reinforced

Moisture Effects on Cellulose Fiber Reinforced Concrete Properties

2013 ◽  
Vol 330 ◽  
pp. 77-81
Author(s):  
Yu Chen ◽  
David Bloomquist ◽  
Raphael Crowley
Keyword(s):  
Reinforced Concrete ◽  
Flexural Strength ◽  
Yield Strength ◽  
Cellulose Fiber ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Concrete Properties ◽  
Moisture Effects ◽  
Strength Tests ◽  
Effect Of Moisture

ASTM C78, the Flexural Strength tests were conducted on Cellulose Fiber Reinforced Concrete (CFRC) samples subjected to difference moisture-levels to quantify the effect of moisture on them. Results indicated that modulus elasticity did not change along the increase in moisture. However, flexural strength and yield strength appeared to be affected under certain conditions.

Theoretical Strength Analysis of Cellulose Fiber Reinforced Polyethylene

2018 ◽  
Vol 2018.26 (0) ◽  
pp. 112
Author(s):  
Ryohei YANAGAWA ◽  
Satoshi KOBAYASHI ◽  
Toshiko OSADA
Keyword(s):  
Cellulose Fiber ◽  
Theoretical Strength ◽  
Strength Analysis ◽  
Fiber Reinforced

scholarly journals Cellulose Fiber-Reinforced PLA versus PP

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Nina Graupner ◽  
Jörg Müssig
Keyword(s):  
Tensile Strength ◽  
Impact Strength ◽  
Load Transfer ◽  
Cellulose Fiber ◽  
Fiber Reinforced ◽  
Strain Behavior ◽  
The Matrix ◽  
Lyocell Fibers ◽  
Reinforced Thermoplastics ◽  
The Impact

The present study focuses on a comparison between different cellulose fiber-reinforced thermoplastics. Composites were produced with 30 mass-% lyocell fibers and a PLA or PP matrix with either an injection (IM) or compression molding (CM) process. Significant reinforcement effects were achieved for tensile strength, Young’s modulus, and Shore D hardness by using lyocell as reinforcing fiber. These values are significantly higher for PLA and its composites compared to PP and PP-based composites. Investigations of the fiber/matrix adhesion show a better bonding for lyocell in PLA compared to PP, resulting in a more effective load transfer from the matrix to the fiber. However, PLA is brittle while PP shows a ductile stress-strain behavior. The impact strength of PLA was drastically improved by adding lyocell while the impact strength of PP decreased. CM and IM composites do not show significant differences in fiber orientation. Despite a better compaction of IM composites, higher tensile strength values were achieved for CM samples due to a higher fiber length.

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