Research on Mechanical Properties of Several New Regenerated Cellulose Fibers

2011 ◽  
Vol 332-334 ◽  
pp. 489-495 ◽  
Author(s):  
Rong Zhou ◽  
Ming Xia Yang
Keyword(s):  
Mechanical Properties ◽  
Phase Change Materials ◽  
Cellulose Fiber ◽  
Cellulose Fibers ◽  
Regenerated Cellulose ◽  
Pulp Fiber ◽  
Pulp Fibers ◽  
Bast Fiber ◽  
Bamboo Pulp ◽  
Lyocell Fiber

Regenerated cellulose fiber is the most widely-used and most variety of cellulose fiber. Five categories and ten kinds of fibers such as lyocell fiber, modal fiber, bamboo pulp fiber, sheng-bast fiber, Outlast viscose fiber were chosen as the research object. The strength property and elasticity of fibers in dry and wet state were tested and analysis. The comprehensive performances of fabrics were studied and mechanical properties of the fibers were listed in the order from good to bad by grey clustering analysis. The results show lyocell G100 and lyocell LF have better comprehensive mechanical properties ,while other new regenerated cellulose fibers’ comprehensive mechanical properties are general. Among these fibers modal fiber’s comprehensive mechanical properties are slightly better than sheng-bast fibers’ and bamboo pulp fibers’. Modal fiber, sheng-bast fiber and Bamboo pulp fiber have no significantly poor single parameter and all of them have better comprehensive mechanical properties than various viscose fibers. Outlast viscose in which has been added phase change materials sensitive to temperature by Microcapsule techniques fundamentally keeps similar comprehensive mechanical properties with other regenerated cellulose fibers,but its properties decline slightly .

Comparative Study on Structural Performance of Several New Regenerated Cellulose Fibers

2012 ◽  
Vol 573-574 ◽  
pp. 174-180
Author(s):  
Rong Zhou ◽  
Chun Guang Li ◽  
Ming Xia Yang
Keyword(s):  
Cellulose Fiber ◽  
Degree Of Polymerization ◽  
Structural Performance ◽  
Regenerated Cellulose ◽  
Pulp Fiber ◽  
Bast Fiber ◽  
Bamboo Pulp ◽  
Lyocell Fiber ◽  
Regenerated Cellulose Fiber ◽  
Sectional Shape

Regenerated cellulose fiber is the most widely-used and most variety of cellulose fiber. Five categories and ten kinds of fibers such as lyocell fiber, viscose fiber, modal fiber, bamboo pulp fiber, and sheng-bast fiber were chosen as the research object. The sectional shape, crystallinity and degree of polymerization of fibers were tested and analysis, to explore the nature of the reasons for the formation of fiber performance difference, and to verify through experiments.

Infrared Spectrum Test and Analysis of Regenerated Cellulose Fibers

2013 ◽  
Vol 671-674 ◽  
pp. 1954-1957
Author(s):  
Shun Bin Ma
Keyword(s):  
Infrared Spectrum ◽  
Cellulose Fiber ◽  
Cellulose Fibers ◽  
Regenerated Cellulose ◽  
Pulp Fiber ◽  
Test Results ◽  
Bamboo Pulp ◽  
Lyocell Fiber ◽  
Regenerated Cellulose Fiber ◽  
Regenerated Fibers

In this paper, the infrared spectrum of regenerated fibers have been tested and analyzed, such as Lyocell fiber, Modal fiber, regenerated cellulose fiber and Bamboo pulp fiber. Test results shown that: Lyocell fiber, Modal fiber, Bamboo pulp fiber are similar to viscose fiber in their infrared spectrogram, but the transmittance of characteristic absorption peaks of them are different.

scholarly journals Fabrication and Application of SERS-Active Cellulose Fibers Regenerated from Waste Resource

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2142
Author(s):  
Shengjun Wang ◽  
Jiaqi Guo ◽  
Yibo Ma ◽  
Alan X. Wang ◽  
Xianming Kong ◽  
...  
Keyword(s):  
Au Nanoparticles ◽  
Cellulose Fiber ◽  
Cellulose Fibers ◽  
Regenerated Cellulose ◽  
Sers Substrate ◽  
Au Nps ◽  
Convenient Approach ◽  
Theoretical Simulations ◽  
Difference Time ◽  
Raman Probe

The flexible SERS substrate were prepared base on regenerated cellulose fibers, in which the Au nanoparticles were controllably assembled on fiber through electrostatic interaction. The cellulose fiber was regenerated from waste paper through the dry-jet wet spinning method, an eco-friendly and convenient approach by using ionic liquid. The Au NPs could be controllably distributed on the surface of fiber by adjusting the conditions during the process of assembling. Finite-difference time-domain theoretical simulations verified the intense local electromagnetic fields of plasmonic composites. The flexible SERS fibers show excellent SERS sensitivity and adsorption capability. A typical Raman probe molecule, 4-Mercaptobenzoicacid (4-MBA), was used to verify the SERS cellulose fibers, the sensitivity could achieve to 10−9 M. The flexible SERS fibers were successfully used for identifying dimetridazole (DMZ) from aqueous solution. Furthermore, the flexible SERS fibers were used for detecting DMZ from the surface of fish by simply swabbing process. It is clear that the fabricated plasmonic composite can be applied for the identifying toxins and chemicals.

Structure and Mechanical Properties of Regenerated Cellulose Fibers Wet-Spun from Ionic Liquid/Cosolvent Systems

2019 ◽  
Vol 20 (3) ◽  
pp. 501-511
Author(s):  
Young Jae Lee ◽  
Sung Jun Lee ◽  
Sang Won Jeong ◽  
Hyun-chul Kim ◽  
Tae Hwan Oh ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ionic Liquid ◽  
Cellulose Fibers ◽  
Regenerated Cellulose

Mechanical and dynamic mechanical properties of polystyrene composites reinforced with cellulose fibers

2015 ◽  
Vol 30 (9) ◽  
pp. 1242-1254 ◽  
Author(s):  
Matheus Poletto ◽  
Ademir J Zattera
Keyword(s):  
Mechanical Properties ◽  
Coupling Agent ◽  
Interfacial Adhesion ◽  
Cellulose Fiber ◽  
Cellulose Fibers ◽  
Dynamic Mechanical Properties ◽  
Filler Loading ◽  
Fixed Amount ◽  
Dynamic Mechanical ◽  
Damping Peak

The mechanical and dynamic mechanical properties of cellulose fibers-reinforced polystyrene composites were investigated as a function of cellulose fiber content and coupling agent effect. The composites were prepared using a corotating twin-screw extruder and after injection molding. Three levels of filler loading (10, 20, and 30 wt%) and a fixed amount of coupling agent (2 wt%) were used. The results showed that a cellulose fiber loading of more than 20 wt% caused decrease in the mechanical properties. The addition of coupling agent substantially improves the mechanical and dynamic mechanical properties. The use of coupling agent improved the storage modulus and reduced the damping peak values of the composites due to the improved interfacial adhesion. The height of the damping peak was found to be dependent on the content of cellulose fiber and the interfacial adhesion between fiber and matrix. The adhesion factor values confirm that the better adhesion occurs when coupling agent is used.

scholarly journals Natural Cellulose Fibers for Surgical Suture Applications

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3042
Author(s):  
María Paula Romero Guambo ◽  
Lilian Spencer ◽  
Nelson Santiago Vispo ◽  
Karla Vizuete ◽  
Alexis Debut ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Wound Repair ◽  
Cocos Nucifera ◽  
Cellulose Fiber ◽  
Cellulose Fibers ◽  
Uniform Structure ◽  
Rapid Weight Loss ◽  
Handling Characteristics ◽  
Surgical Suture

Suture biomaterials are critical in wound repair by providing support to the healing of different tissues including vascular surgery, hemostasis, and plastic surgery. Important properties of a suture material include physical properties, handling characteristics, and biological response for successful performance. However, bacteria can bind to sutures and become a source of infection. For this reason, there is a need for new biomaterials for suture with antifouling properties. Here we report two types of cellulose fibers from coconut (Cocos nucifera) and sisal (Agave sisalana), which were purified with a chemical method, characterized, and tested in vitro and in vivo. According to SEM images, the cellulose fiber from coconut has a porous surface, and sisal has a uniform structure without internal spaces. It was found that the cellulose fiber from sisal has mechanical properties closer to silk fiber biomaterial using Ultimate Tensile Strength. When evaluating the cellulose fibers biodegradability, the cellulose from coconut showed a rapid weight loss compared to sisal. The antifouling test was negative, which demonstrated that neither possesses intrinsic microbicidal activity. Yet, a weak biofilm was formed on sisal cellulose fibers suggesting it possesses antifouling properties compared to cellulose from coconut. In vivo experiments using healthy mice demonstrated that the scarring and mechanical connection was like silk for both cellulose fibers. Overall, our results showed the potential use of cellulose fibers from vegetal for surgical sutures due to excellent mechanical properties, rapid degradation, and no bacterial adhesion.

Influence of Domain Orientation on the Mechanical Properties of Regenerated Cellulose Fibers

2007 ◽  
Vol 8 (2) ◽  
pp. 624-630 ◽  
Author(s):  
Kenny Kong ◽  
Richard J. Davies ◽  
Michael A. McDonald ◽  
Robert J. Young ◽  
Michael A. Wilding ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cellulose Fibers ◽  
Regenerated Cellulose ◽  
Domain Orientation

scholarly journals Effects of Pulp Fiber and Epoxidized Tung Oil Content on the Properties of Biocomposites Based on Polylactic Acid

2020 ◽  
Vol 4 (2) ◽  
pp. 56 ◽  
Author(s):  
Van Khoi Nguyen ◽  
Thanh Tung Nguyen ◽  
Thu Ha Pham Thi ◽  
Thu Trang Pham
Keyword(s):  
Mechanical Properties ◽  
Polylactic Acid ◽  
Fiber Composites ◽  
Pulp Fiber ◽  
Fiber Reinforced ◽  
Pulp Fibers ◽  
Plant Fibers ◽  
Tung Oil ◽  
Degradation Temperature ◽  
Internal Mixer

Recently, various environmental-friendly materials have been investigated and developed, especially composites of polylactic acid (PLA) and plant fibers. This paper investigates the effects of pulp fiber (PF) and epoxidized Tung oil (ETO) content on the properties of biocomposites, based on polylactic acid. The bleached pulp fiber reinforced PLA (PLA/PF) composites with 10–50 wt% fiber contents and 0–15% epoxidized Tung oil contents (with a certain number of fiber) were prepared in an internal mixer (Plastograph® EC) at 150 °C. The mechanical properties of PLA/PF composites were improved significantly. The pulp fiber reinforced PLA composites, with the fiber content of 30 wt%, were found to have the highest mechanical properties. The tensile and flexural properties of PLA/Tung oil-soaked-pulp fiber composites were higher than those of PLA/Tung oil unsoaked pulp fiber composites. In addition, the degradation temperature of PLA-based composites decreased after adding more pulp fiber. The pulp fibers were well-dispersed in the PLA matrix with the content up to 30 wt%. The interaction between pulp fiber and PLA matrix improved by the addition of epoxidized Tung oil. Epoxidized Tung oil also improved tensile and flexural strength of composite materials when it was added with a number of below 10% of fiber.

Investigation of bamboo pulp fiber-reinforced unsaturated polyester composites

Holzforschung ◽  
2015 ◽  
Vol 69 (8) ◽  
pp. 967-974 ◽  
Author(s):  
Renhui Qiu ◽  
Wendi Liu ◽  
Kaichang Li
Keyword(s):  
Tensile Strength ◽  
Flexural Strength ◽  
Photoelectron Spectroscopy ◽  
Unsaturated Polyester ◽  
Flexural Modulus ◽  
Pulp Fiber ◽  
Pulp Fibers ◽  
Chemical Pulp ◽  
Bamboo Pulp ◽  
Bamboo Fibers

Abstract Mechanical pulp fibers (MPFs) and chemical pulp fibers (CPFs) from moso bamboo have been characterized in terms of their length and width distributions, and their reinforcing effects in unsaturated polyester (UPE) composites have also been investigated. CPF-UPE composites had much higher tensile strength, flexural strength, and flexural modulus than MPF-UPE composites. CPF-UPE composites also absorbed less water than MPF-UPE composites. Treatments of the fibers with a combination of 1,6-diisocyanatohexane (DIH) and 2-hydroxyethyl acrylate (HEA) significantly increased the tensile strength, flexural strength, flexural modulus, and water resistance of the resulting composites. Fourier transform infrared and X-ray photoelectron spectroscopy analyses indicated that DIH-HEA was bound onto bamboo fibers (BFs) via carbamate linkages. The scanning electron microscopy images of the tensile-fractured surfaces of the composites revealed that the DIH-HEA treatments for BFs greatly improved the interfacial adhesion between the fibers and UPE resins.

scholarly journals The colloidal structure of a cellulose fiber

Cellulose ◽  
2021 ◽  
Author(s):  
Marta Gubitosi ◽  
Shirin Asaadi ◽  
Herbert Sixta ◽  
Ulf Olsson
Keyword(s):  
Cellulose Fiber ◽  
Cellulose Fibers ◽  
Liquid Solution ◽  
Fiber Axis ◽  
Regenerated Cellulose ◽  
Colloidal Structure ◽  
Amorphous Cellulose ◽  
X Ray ◽  
Saxs Pattern ◽  
Ionic Liquid Solution

Abstract We present a small angle X-ray scattering (SAXS) study of the colloidal structure of regenerated cellulose fibers, air-gap spun from an ionic liquid solution. Based on the data, and a different interpretation of the anisotropic SAXS pattern, we propose a slightly different colloidal structure of the fibers, than what is commonly assumed for regenerated cellulose fibers. Fibers with two different degrees of orientation, as produced by different draw ratios, DR = 2 and 15, respectively, are analyzed. The 2D SAXS pattern is highly anisotropic with striking cross-like pattern, having scattering predominantly perpendicular and parallel to the fiber axis. This cross-like pattern suggest a colloidal structure with oriented crystalline lamellae of ca. 10 nm thickness, embedded within a continuous matrix of amorphous cellulose. The lamellae are oriented with their normal parallel with the fiber axis. Complementary wide angle X-ray diffraction data confirm that the lamellae normal direction corresponds to the cellulose chain direction (c-direction) in the monoclinic cellulose crystal (Cellulose II). Graphic abstract

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