Regenerated Cellulose/Nypa Fruticans Fiber Biocomposite Films Using Ionic Liquid

2015 ◽  
Vol 754-755 ◽  
pp. 266-270 ◽  
Author(s):  
Vaniespree Govindan ◽  
Salmah Husseinsyah ◽  
Teh Pei Leng ◽  
Marliza Mosthapa Zakaria ◽  
Faisal Amri Tanjung
Keyword(s):  
Tensile Strength ◽  
Ionic Liquid ◽  
Tensile Properties ◽  
Microcrystalline Cellulose ◽  
Regenerated Cellulose ◽  
X Ray Diffraction ◽  
Elongation At Break ◽  
X Ray ◽  
Nypa Fruticans ◽  
Biocomposite Films

Regenerated cellulose (RC) biocomposite films from Nypa Fruticans Fiber (NFF) and microcrystalline cellulose (MCC) were prepared by dissolving cellulose in lithium chloride (LiCl) and dimethylacetamide (DMAc). The effect of NFF content on tensile properties and X-ray diffraction were studied. The results found that the tensile strength and Young’s modulus of RC biocomposite films increased from 1 wt% to 3 wt% of NFF content and decreased at 4 wt% of NFF content. The elongation at break of RC biocomposite films decreased with increases NFF content. The crystallinity of RC biocomposite films also showed the highest crystallinity at 3 wt% of NFF content.

Mechanical Properties of TPNR-MWNTs-OMMT Hybrid Nanocomposites

2012 ◽  
Vol 501 ◽  
pp. 194-198 ◽  
Author(s):  
Mou'ad A. Tarawneh ◽  
Sahrim H. Ahmad ◽  
A.R. Shamsul Bahri ◽  
Yu Lih Jiun
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Aspect Ratio ◽  
Interfacial Adhesion ◽  
Hybrid Nanocomposites ◽  
X Ray Diffraction ◽  
Elongation At Break ◽  
X Ray ◽  
Maximum Value ◽  
The Matrix

This paper discusses the processing of a hybrid of TPNR-MWNTs-OMMT nanocomposites with different percentages of filler to determine the optimum mechanical properties of the hybrid nanocomposites. Three types of hybrid nanocomposites with various MWNTs-OMMT compositions (1%wt MWNTs+3%wt OMMT), (2%wt MWNTs+2%wt OMMT) and (3%wt MWNTs+1%wt OMMT) were prepared. The OMMT layers were found to be separated further with higher nanotubes content as exhibited by X-ray diffraction. The result of tensile test showed that tensile strength and Young's modulus increase in the presence of nanotubes and maximum value were obtained for the nanocomposites with highest nanotubes (3%wt) which increased about 33% and 36%, respectively compared with pure TPNR matrix. On other hand, the elongation at break considerably decreased with increasing the percentage of MWNTs. TEM micrographs revealed aspect ratio and fillers orientation in the TPNR matrix also promoted strongly to interfacial adhesion between fillers and the matrix which contributed significantly to the improvement of the mechanical properties

Effect of Corn Husk Content on Tensile Properties of Polylactic Acid Biocomposite Films

2015 ◽  
Vol 754-755 ◽  
pp. 66-70
Author(s):  
Mohd Akmalhakim bin Dato’ Hasnan ◽  
Salmah Husseinsyah ◽  
Lim Bee Ying ◽  
Mohd Faizal Abd Rahman
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Polylactic Acid ◽  
Modulus Of Elasticity ◽  
Solvent Casting ◽  
Casting Method ◽  
Elongation At Break ◽  
Study Materials ◽  
Corn Husk ◽  
Biocomposite Films

Nowadays bioplastics is the most recent study materials as the substitute for conventional plastics. The interest in bioplastics has lead to the production of polylactic acid (PLA) biocomposite films. In this study the PLA/Corn husk (CH) biocomposite films were prepared by using solvent casting method and the effect of CH content on the tensile properties were studied. The result found that increasing of CH content decreased the tensile strength and elongation at break of the biocomposites film. While, the modulus of elasticity increased with the increasing of CH content in the PLA matrix.

Preparation and Properties of Semi-Transparent EPDM/Montmorillonite Nanocomposites

2005 ◽  
Vol 13 (1) ◽  
pp. 53-60 ◽  
Author(s):  
Hua Zheng ◽  
Yong Zhang ◽  
Zonglin Peng ◽  
Yinxi Zhang
Keyword(s):  
Tensile Strength ◽  
Decomposition Temperature ◽  
Mixing Process ◽  
X Ray Diffraction ◽  
Melt Mixing ◽  
Elongation At Break ◽  
X Ray ◽  
Transmission Electron ◽  
Internal Mixer ◽  
Diene Rubber

Ethylene-propylene-diene rubber (EPDM)/organic montmorillonite (OMMT) nanocomposites were prepared through a melt-mixing process in an internal mixer. The nanoscale dispersion of OMMT in the EPDM matrix was verified by X-ray diffraction (XRD) and transmission electron microscopy (TEM), relating to an exfoliated morphology. The effects of OMMT content on the mechanical properties, curing behaviour, optical properties and thermal properties of the EPDM/OMMT nanocomposites were studied. The experimental results showed that OMMT had good reinforcement on the EPDM vulcanizates. The tensile strength and tear stress of the EPDM/OMMT nanocomposites significantly increased with increasing OMMT content. When the OMMT content was 15 phr, the tensile strength and elongation at break reached 19.8 MPa and 540%, respectively. The EPDM/OMMT nanocomposite cured by 2,5-dimethyl-2, 5-bis (tert-butyl peroxy) hexane was semi-transparent and the OMMT content had little influence on the curing behaviour of the nanocomposites. The increases in the glass transition temperature and thermal decomposition temperature were observed in the nanocomposites and were supposed to be related with the nanoscale dispersion of the OMMT and the strong interaction between EPDM and OMMT. Moreover, the permeability of oxygen for the EPDM/OMMT nanocomposites was reduced remarkably.

Synthesis of a phosphorus-containing trisilanol POSS and its application in RTV composites

e-Polymers ◽  
2018 ◽  
Vol 18 (3) ◽  
pp. 237-245 ◽  
Author(s):  
Ding Yaoke ◽  
Zhanglin Yuan ◽  
Jincheng Wang
Keyword(s):  
Tensile Strength ◽  
Room Temperature ◽  
Polyhedral Oligomeric Silsesquioxane ◽  
Fire Retardant ◽  
X Ray Diffraction ◽  
Elongation At Break ◽  
X Ray ◽  
H Nmr ◽  
Phosphorus Containing ◽  
Oligomeric Silsesquioxane

AbstractA novel trisilanol polyhedral oligomeric silsesquioxane-containing phosphorus (DPCP-TPOSS) was synthesized from trisilanolphenyl polyhedral oligomeric silsesquioxane (TPOSS) and diphenyl chlorophosphate. DPCP-TPOSS was characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), hydrogen nuclear magnetic resonance (1H-NMR), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). Then a novel type of room-temperature vulcanized silicone rubber (RTV)/DPCP-TPOSS composite was prepared. Properties such as swelling behavior, tensile strength, elongation at break, thermal stability and flame retardance were researched and compared. Results showed that RTV/DPCP-TPOSS-3 and RTV/DPCP-TPOSS-5 composites exhibited the best tensile strength and elongation at break, 4.5 MPa and 427%, which was 25% and 32% higher than that of pure RTV. TGA tests demonstrated that RTV/DPCP-TPOSS-3 owned the highest char residues, 39.7%. Tmax of RTV composites was increased from 531.9°C to 557°C with the incorporation of DPCP-TPOSS. Moreover, the addition of DPCP-TPOSS led to considerably increase of the fire-retardant performance.

Physical Properties of Silk Fabric Containing Chitosan and Silver

2012 ◽  
Vol 476-478 ◽  
pp. 1341-1344 ◽  
Author(s):  
Xiao Peng ◽  
Jun Li Chen ◽  
Qiu Bao Zhou ◽  
Xue Qin Wang ◽  
Lei Zhu
Keyword(s):  
Fourier Transform ◽  
Tensile Properties ◽  
Silk Fabric ◽  
Breaking Force ◽  
X Ray Diffraction ◽  
Dual Effect ◽  
Elongation At Break ◽  
X Ray ◽  
Antibacterial Ability ◽  
Ability Tests

As “Queen of Fibers”, silk is very popular due to its favorable properties. However, unfavorable antibacterial ability has limited the application of silk. In this paper, therefore, the antibacterial treatments containing both silver and chitosan for silk fabric were conducted. X-ray diffraction (XRD), Fourier transform infrared (FTIR), tensile properties and antibacterial ability tests were carried out to characterize the silk fabric containing chitosan and silver. The results showed that chitosan and silver treatment did not destroy the crystalline structure and molecule structure of silk fabric, however, greatly changed the tensile properties and antibacterial ability, i.e. after treatment, the breaking force decreased while elongation at break increased. Especially, the antibacterial ability of silk was greatly improved due to dual effect of chitosan and silver.

Properties Analysis of Organic Montmorillonite (OMMT) Reinforced Polybutadiene Styrene Rubber (SBR) Composites

2011 ◽  
Vol 197-198 ◽  
pp. 1240-1243
Author(s):  
Jin Cheng Wang ◽  
Xiao Yu Zheng
Keyword(s):  
Tensile Strength ◽  
Fourier Transform ◽  
Thermal Properties ◽  
Wide Angle ◽  
Trimethyl Ammonium Chloride ◽  
X Ray Diffraction ◽  
Elongation At Break ◽  
X Ray ◽  
Organic Montmorillonite ◽  
Cure Characteristic

N, N-diamino-N-octadecyl-N-trimethyl ammonium chloride were used as an intercalation agent to treat Na+-montmorillonite and for forming a kind of OMMT. OMMT was analyzed by fourier transform infrared spectroscopy (FTIR) and wide angle X-ray diffraction (XRD). Novel polybutadiene styrene rubber (SBR)/organic montmorillonite (OMMT) composites were prepared by SBR and OMMT. Properties such as cure characteristic, tensile strength, elongation at break, abrasion loss and thermal properties were researched and compared. Results showed that SBR/OMMT-10% composite had the best tensile properties.

Fabrication and characterization of electro-active cellulose films regenerated by using 1-butyl-3-methylimidazolium chloride ionic liquid

2013 ◽  
Vol 227 (12) ◽  
pp. 2665-2670 ◽  
Author(s):  
Ki-Baek Kim ◽  
Jaehwan Kim
Keyword(s):  
Ionic Liquid ◽  
Regenerated Cellulose ◽  
Cellulose Solution ◽  
Cellulose Film ◽  
X Ray Diffraction ◽  
Thermo Gravimetric ◽  
X Ray ◽  
Thermo Gravimetric Analyzer ◽  
Regenerated Cellulose Film

This article reports dissolution, regeneration, and characterization of cellulose using an ionic liquid, namely 1-butyl-3-methylimidazolium chloride (BMIMCl). During dissolving process, BMIMCl takes much less time to dissolve cellulose with high degree of polymerization (DP = 4500) than other solvent system, lithium chloride/ N,N-dimethylacetamide (LiCl/DMAc). Regenerated cellulose film from BMIMCl–cellulose solution is characterized by viscosity, thermo gravimetric analyzer, X-ray diffraction, pull test, and transmittance test. Compared with LiCl/DMAc–cellulose, BMIMCl–cellulose solution has lower viscosity and its film has lower Young's modulus and yield strength. From thermo gravimetric analyzer and X-ray diffraction experiment, BMIMCl–cellulose film has impurity and X-ray diffraction pattern similar with those of LiCl/DMAc–cellulose film. BMIMCl–cellulose film exhibits higher transmittance. The ionic liquid recovery test verifies that BMIMCl is highly recoverable with 99%, which proves that BMIMCl is a green solvent. Through the bending displacement test, the BMIMCl–cellulose film shows a good actuation behavior of electro-active paper.

Effect of Microcrystalline Cellulose from Banana Stem Fiber on Mechanical Properties and Crystallinity of PLA Composite Films

2011 ◽  
Vol 695 ◽  
pp. 170-173 ◽  
Author(s):  
Voravadee Suchaiya ◽  
Duangdao Aht-Ong
Keyword(s):  
Tensile Strength ◽  
Young’S Modulus ◽  
Microcrystalline Cellulose ◽  
Young's Modulus ◽  
Agricultural Waste ◽  
Composite Films ◽  
Sem Image ◽  
Biocomposite Films ◽  
Twin Screw ◽  
Banana Stem

This work focused on the preparation of the biocomposite films of polylactic acid (PLA) reinforced with microcrystalline cellulose (MCC) prepared from agricultural waste, banana stem fiber, and commercial microcrystalline cellulose, Avicel PH 101. Banana stem microcrystalline cellulose (BS MCC) was prepared by three steps, delignification, bleaching, and acid hydrolysis. PLA and two types of MCC were processed using twin screw extruder and fabricated into film by a compression molding. The mechanical and crystalline behaviors of the biocomopsite films were investigated as a function of type and amount of MCC. The tensile strength and Young’s modulus of PLA composites were increased when concentration of MCC increased. Particularly, banana stem (BS MCC) can enhance tensile strength and Young’s modulus of PLA composites than the commercial MCC (Avicel PH 101) because BS MCC had better dispersion in PLA matrix than Avicel PH 101. This result was confirmed by SEM image of fractured surface of PLA composites. In addition, XRD patterns of BS MCC/PLA composites exhibited higher crystalline peak than that of Avicel PH 101/PLA composites

scholarly journals Fabrication and Characterization of Electrospun Polycaprolactone Blended with Chitosan-Gelatin Complex Nanofibrous Mats

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Yongfang Qian ◽  
Zhen Zhang ◽  
Laijiu Zheng ◽  
Ruoyuan Song ◽  
Yuping Zhao
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Weight Ratio ◽  
Degree Of Crystallinity ◽  
X Ray Diffraction ◽  
Tissue Engineering Scaffolds ◽  
Elongation At Break ◽  
Nanofibrous Scaffolds ◽  
Two Peaks

Design and fabrication of nanofibrous scaffolds should mimic the native extracellular matrix. This study is aimed at investigating electrospinning of polycaprolactone (PCL) blended with chitosan-gelatin complex. The morphologies were observed from scanning electron microscope. As-spun blended mats had thinner fibers than pure PCL. X-ray diffraction was used to analyze the degree of crystallinity. The intensity at two peaks at 2θof 21° and 23.5° gradually decreased with the percentage of chitosan-gelatin complex increasing. Moreover, incorporation of the complex could obviously improve the hydrophilicity of as-spun blended mats. Mechanical properties of as-spun nanofibrous mats were also tested. The elongation at break of fibrous mats increased with the PCL content increasing and the ultimate tensile strength varied with different weight ratios. The as-spun mats had higher tensile strength when the weight ratio of PCL to CS-Gel was 75/25 compared to pure PCL. Both as-spun PCL scaffolds and PCL/CS-Gel scaffolds supported the proliferation of porcine iliac endothelial cells, and PCL/CS-Gel had better cell viability than pure PCL. Therefore, electrospun PCL/Chitosan-gelatin nanofibrous mats with weight ratio of 75/25 have better hydrophilicity mechanical properties, and cell proliferation and thus would be a promising candidate for tissue engineering scaffolds.

Sign in / Sign up

Export Citation Format

Share Document