scholarly journals Preparation and Properties of Microcrystalline Cellulose/Fish Gelatin Composite Film

Materials ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 4370
Author(s):  
Ling Pan ◽  
Peng Li ◽  
Yubo Tao
Keyword(s):  
Composite Film ◽  
Microcrystalline Cellulose ◽  
Ultrasonic Treatment ◽  
Thermo Gravimetric Analysis ◽  
Composite Films ◽  
Gravimetric Analysis ◽  
Fish Gelatin ◽  
Hydrogen Bond Interaction ◽  
Elongation At Break ◽  
Medical Materials

As a natural macromolecule-based biomaterial, fish gelatin is used in medical materials for its low pathogen infection risk. However, because of poor mechanical properties, its application has been limited. In this study, microcrystalline cellulose-reinforced fish gelatin (FG/MCC) composite films were prepared with a biological cross-linking agent (genipin) under ultrasonic treatment. SEM micrographs showed that the smooth microstructure of FG film became increasingly disordered with the addition of MCC. The infrared spectrum analysis (FTIR) demonstrated the existence of hydrogen bond interaction between MCC and FG. Compared with the pure FG film, the tensile strength (TS) and modulus of elasticity (MOE) of composite films with MCC were improved, and the elongation at break (EAB) and swelling ratios (SR) were decreased. Ultrasonic treatment could further improve TS, MOE, and SR. When the composite film was prepared with 15% MCC and treated with ultrasound, the TS and MOE increased by 115% and 227%, respectively, while the EAB decreased by 35% and the SR decreased by 4% in comparison with pure FG films. Thermo-gravimetric analysis (TGA) showed that the FG/MCC composite films were stable below 100 °C. The above results indicate that the FG/MCC films have optimistic application prospects in the biomedical field.

Preparation and Properties of Bagasses Cellulose Microcrystal Reinforced Poly(Vinyl alcohol) Composite Film

2011 ◽  
Vol 399-401 ◽  
pp. 381-384
Author(s):  
Chun Guang Li ◽  
Bin Guo Zheng ◽  
Wei Gong Peng ◽  
Wei Tian ◽  
Rui Zhang
Keyword(s):  
Thermal Properties ◽  
Composite Film ◽  
Tensile Properties ◽  
Microcrystalline Cellulose ◽  
Vinyl Alcohol ◽  
Composite Films ◽  
Poly Vinyl Alcohol ◽  
Elongation At Break ◽  
Biodegradable Composite ◽  
Cellulose Microcrystal

The biodegradable composite films were prepared from bagasse microcrystalline cellulose as filler and poly(vinyl alcohol)(PVA) as polymeric matrix. The crystallinity, the tensile properties and the thermal properties of the composites were tested. Bagasse microcrystalline cellulose was distributed in PVA films as the crystalline state. The results show that the tensile properties and thermal properties were improved with the addition of bagasse microcrystalline cellulose. When bagasse microcrystalline cellulose mass fraction was 5%, both temperature of initial decomposition and maximum weight loss rate of composite film were raised by 11.71°C and 36.86°C, and the tensile strength increased by 17.88%, and the elongation at break increased by 36.62% compared to those of pure PVA.

The Mechanical Properties of Poly(Methyl Methacrylate) (PMMA)/ZrO2 Nanocomposite Polymer Films

2018 ◽  
Vol 24 (8) ◽  
pp. 5614-5617 ◽  
Author(s):  
Anita Rajkumar Ghandhe ◽  
Basavaraja Sannakki
Keyword(s):  
Mechanical Properties ◽  
Weight Loss ◽  
Composite Film ◽  
Melting Temperature ◽  
Electron Irradiation ◽  
Thermo Gravimetric Analysis ◽  
Testing Machine ◽  
Composite Films ◽  
Gravimetric Analysis ◽  
Weight Percentage

The composite films of Polymethylmethacrylate (PMMA) with ZrO2 at different weight percentage have been used for measurement of Mechanical properties such as stress, strain, and Young’s modulus at room temperature using the Universal Testing Machine. The value of stress is increased linearly with strain up to the stress at break and afterwards shown discontinuity. The properties of stress and strain increased as weight percentage of ZrO2 increased with PMMA and at 60 weight percent the stress in increased linearly up to 2.18 MPa with strain. The tensile strength, load at break and stress at break of the composite film of PMMA with ZrO2 is increased as weight percentage increased. Further, the weight loss and melting temperature of the composite films for pristine and for irradiation by electron beam at dose rate of 100 kGy were measured using Thermo Gravimetric Analysis and Differential Scanning Calorimeter. The weight loss of the composite film after electron irradiation is higher than that of its pristine. It is observed from DSC that melting peak is occurred at temperature 397.52 °C for pristine and at 395.94 °C after electron irradiation. Hence change in melting temperature is found to be 1.58 °C. The prepared composite films are characterized by using FTIR over the range of 3500– 500 wavenumbers (cm−1).

scholarly journals Development and Characterization of a Biodegradable Colored Film Based on Starch and Chitosan by Using Acacia Catechu

2016 ◽  
Vol 8 (2) ◽  
pp. 123-130
Author(s):  
FB Quader ◽  
RA Khan ◽  
MA Islam ◽  
S Saha ◽  
KN Sharmin
Keyword(s):  
Tensile Strength ◽  
Composite Film ◽  
Thermo Gravimetric Analysis ◽  
Chitosan Film ◽  
Green Technology ◽  
Gravimetric Analysis ◽  
Good Thermal Stability ◽  
Biodegradable Composite ◽  
Acacia Catechu

Green technology like biodegradable films using natural polymer is an obvious need of today. Attempt of this experiment was aimed at development and characterization of a biodegradable colored film based on starch and chitosan by using Acacia catechu. Chitosan reinforced starch based biodegradable composite film was prepared by casting. The chitosan content in the films was varied from 20-80 % (w/w). Tensile strength (TS) was improved significantly with the addition of chitosan but the elongation at break (EB %) of the composite decreased. With the addition of the Acacia catechu, tensile strength of the composites improved more. The acacia content of the film was varied from 0.05-0.2(w/w). The good thermal stability of this prepared film was confirmed by thermo-gravimetric analysis. Structural characterization was done by Fourier transform infrared radiation spectroscopy. Surface morphology of the composite film was examined by scanning electron microscope (SEM) which suggested sufficient homogenization of starch, chitosan and Acacia catechu. Water uptake was found lower for final composites in the comparison to starch/chitosan and chitosan film. The satisfactory rate of degradation in the soil is expected that the final composite film within less than 6 months. The developed films intended to use as the alternative of synthetic non biodegradable colored packaging films.J. Environ. Sci. & Natural Resources, 8(2): 123-130 2015

Thermal and Mechanical Properties of Corn Stalk Microcrystalline Cellulose Reinforced PLA Composites

2011 ◽  
Vol 233-235 ◽  
pp. 1726-1729
Author(s):  
Chun Guang Li ◽  
Rui Zhang ◽  
Yun Xia Li ◽  
Peng Fei Xu ◽  
Yan Qiu Wang
Keyword(s):  
Thermal Properties ◽  
Tensile Properties ◽  
Microcrystalline Cellulose ◽  
Composite Films ◽  
Decomposition Temperature ◽  
Corn Stalk ◽  
Thermal And Mechanical Properties ◽  
Initial Decomposition Temperature ◽  
Elongation At Break ◽  
Biodegradable Composite

The biodegradable composite films were prepared from corn stalk microcrystalline cellulose as filler and polylactic acid (PLA) as polymeric matrix. The crystallinity, the tensile properties and the thermal properties of the composites were tested. The results show that the tensile properties and thermal properties were improved with the addition of corn stalk microcrystalline cellulose. When corn stalk microcrystalline cellulose account for 10% of the PLA quality, the initial decomposition temperature was raised by 34.38, tensile strength increased by 58.3% and elongation at break increased by 31.1% compared to those of pure PLA.

Effects of Zein on Film-Forming Ability and Properties of Wheat Gluten Films

2013 ◽  
Vol 750-752 ◽  
pp. 1582-1585
Author(s):  
Chun Hong Zhang ◽  
Nan Chang ◽  
Chen Li ◽  
Xin Hua Li
Keyword(s):  
Water Retention ◽  
Wheat Gluten ◽  
Composite Films ◽  
Antibacterial Properties ◽  
Water Vapor Permeability ◽  
Vapor Permeability ◽  
Hydrogen Bond Interaction ◽  
Elongation At Break ◽  
Film Forming ◽  
And Staphylococcus Aureus

Zein was added into wheat gluten (WG) to prepare zein composite films (ZCF) in order to improve the properties of films. The film-forming ability, properties, surface microstructure and infrared spectrum of WG films and ZCF were investigated. The results show that the viscosity of film-forming solutions decrease, and uniformity become worse slightly, after zein added. ZCF are yellow, with metal luster, whose toughness and water retention increase. Compared to the control, the ZCF tensile strength (TS), elongation at break (EB) and resistance of oxygen are increased by 33.2%, 17.2% and 11.25%, and water vapor permeability (WVP) and transparency are decreased by 26.0% and 75.4% respectively. ZCF have better antibacterial properties than WG films. The inhibition effect on escherichia coli and staphylococcus aureus are increased by 36.36% and 32.89% respectively. Hydrogen bond interaction of ZCF become weak, and the surface of ZCF become smooth and evenly.

Novel CH3NH3PbI3/polyimide composites with enhanced film-forming and electrical conductive properties

2017 ◽  
Vol 30 (7) ◽  
pp. 847-855
Author(s):  
Qing Li ◽  
Jing Li ◽  
Shulai Zhang ◽  
Changfeng Yi ◽  
Zushun Xu
Keyword(s):  
Composite Film ◽  
Composite Films ◽  
Dielectric Materials ◽  
Visible Absorption ◽  
Elongation At Break ◽  
Maximum Value ◽  
Film Forming ◽  
Polyimide Composites ◽  
Conductive Properties ◽  
Microscopy Images

A series of CH3NH3PbI3/polyimide (PI) composite films were successfully fabricated using simple solution mixing. CH3NH3PbI3 particles were evenly dispersed into PI substrate, which could be seen from scanning electron microscopy images. Tensile test showed that the tensile strength of CH3NH3PbI3/PI composite film (5 wt%) was improved to the maximum (102.2 MPa), 127% higher than pure PI; and the elongation at break was remarkably stretched to 13% for CH3NH3PbI3/PI composite film (3 wt%), 171% greater than pure PI. Moreover, the thermal performance was enhanced to the optimum with the addition of 5 wt% CH3NH3PbI3. Ultraviolet–visible absorption curves revealed that the colors of CH3NH3PbI3/PI composite films were darkened and the red shift increased with the increasing content of CH3NH3PbI3. Furthermore, the CH3NH3PbI3/PI composite films exhibited increased dielectric constant with the maximum value of 13.8, compared with pure PI (3.6). These composite films may be promising to be used as dielectric materials in electronic industry.

scholarly journals Solid-State Compounding for Recycling of Sawdust Waste into Green Packaging Composites

Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1386
Author(s):  
Rula M. Allaf ◽  
Mohammad Futian
Keyword(s):  
Solid State ◽  
Thermo Gravimetric Analysis ◽  
Contact Angles ◽  
Raw Material ◽  
Potential Candidate ◽  
Gravimetric Analysis ◽  
Water Contact ◽  
Elongation At Break ◽  
Green Packaging ◽  
Thermal Stability Of

The present study explores solid-state cryomilling for the compounding of green composites. Herein, wood plastic composites (WPCs) composed of sawdust (SD) and poly(ε-caprolactone) (PCL) with various compositions were prepared. Two compounding techniques, namely, extrusion and cryomilling, were utilized to prepare WPC raw material pellets and powders, respectively, for comparison purposes. Flat pressing was further utilized to prepare WPC films for testing. Morphological, structural, thermal, mechanical, and surface wettability properties were investigated. Results indicate the advantages of cryomilling in producing WPCs. Scanning electron microscopy (SEM) along with optical micrographs revealed well ground SD particles and uniform distribution in the PCL matrix. Tensile strength and elongation at break of the composites declined with increasing SD content, however, the modulus of elasticity significantly increased. Water contact angles averaged less than 90°, implying partial wetting. Visual observations and thermo-gravimetric analysis (TGA) indicated thermal stability of composites during processing. In conclusion, PCL/SD WPC is a potential candidate to replace conventional plastics for packaging applications. This would also provide a much better utilization of the currently undervalued wood waste resources.

The Effect of Corn Stalk Microcrystalline Cellulose on Thermal and Mechanical Properties of Chitosan Composites

2012 ◽  
Vol 174-177 ◽  
pp. 1038-1041 ◽  
Author(s):  
Chun Guang Li ◽  
Xiang Ping Wang ◽  
Lei Liu ◽  
Jie Hu Cui ◽  
Rui Zhang
Keyword(s):  
Thermal Properties ◽  
Tensile Properties ◽  
Microcrystalline Cellulose ◽  
Loss Rate ◽  
Composite Films ◽  
Corn Stalk ◽  
Weight Loss Rate ◽  
Elongation At Break ◽  
Biodegradable Composite ◽  
Maximum Weight Loss

The biodegradable composite films were prepared from corn stalk microcrystalline cellulose as filler and chitosan as polymeric matrix. The crystallinity, the tensile properties and the thermal properties of the composites were tested. The results show that the tensile properties and thermal properties were improved with the addition of corn stalk microcrystalline cellulose. When corn stalk microcrystalline cellulose account for 10% of the chitosan quality, the initial decomposition and maximum weight loss rate temperature was raised by 13.19°C and 38.84°C, tensile strength increased by 83.55% and elongation at break increased by 77.38% compared to those of pure chitosan

scholarly journals Characterization of Chitosan Films Incorporated with Different Substances of Konjac Glucomannan, Cassava Starch, Maltodextrin and Gelatin, and Application in Mongolian Cheese Packaging

Coatings ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 84
Author(s):  
Sijun Ma ◽  
Yuanrong Zheng ◽  
Ran Zhou ◽  
Ming Ma
Keyword(s):  
Composite Film ◽  
Composite Films ◽  
Water Vapor Permeability ◽  
Cassava Starch ◽  
Konjac Glucomannan ◽  
Vapor Permeability ◽  
Elongation At Break ◽  
Chitosan Composite ◽  
Storage Characteristics

Four kinds of edible composite films based on chitosan combined with additional substances (konjac glucomannan, cassava starch, maltodextrin and gelatin) and the addition of lysozyme were prepared and used as packaging materials for Mongolian cheese. The prepared composite films were evaluated using scanning electron microscopy and Fourier transform infrared spectroscopy. The physicochemical properties of all chitosan composite films, including thickness, viscosity, opacity, color, moisture content, water vapor permeability, tensile strength and elongation at break, were measured. The results show that Konjac glucomannan–chitosan composite film presented the strongest mechanical property and highest transparency. The cassava starch–chitosan composite film presented the highest water barrier property. The study on the storage characteristics of Mongolian cheese was evaluated at 4 °C. The results show that the cheese packaging by cassava starch–chitosan composite film presented better treatment performance in maintaining the quality, reducing weight loss and delayering microbial growth.

Paper-reinforced sodium alginate/carboxyl methyl cellulose-based bio-composite films

2017 ◽  
Vol 34 (2) ◽  
pp. 179-195 ◽  
Author(s):  
Ravindra D Kale ◽  
Yashlok Maurya ◽  
Tejasvi Potdar
Keyword(s):  
Sodium Alginate ◽  
Thermo Gravimetric Analysis ◽  
Composite Films ◽  
Solution Treatment ◽  
Optimum Combination ◽  
Mechanical And Thermal Properties ◽  
Gravimetric Analysis ◽  
Potassium Alum ◽  
Vapour Permeability ◽  
X Ray

Waste paper-reinforced sodium alginate/carboxymethyl cellulose (NaCMC)-based bio-composite films were prepared by solution casting method by optimum combination of 1.5% sodium alginate and 1.5% NaCMC. The optimum combination was selected on the basis of good tensile strength and low moisture sensitivity. This film was further subjected to aqueous solution of potassium aluminium sulphate (potassium alum) to reduce water vapour permeability and moisture content. This potassium alum solution treatment further enhanced the mechanical and thermal properties, and the film biodegradability was not affected either due to the cross linking or colour addition, which has potential as a substitute for the currently used polyethylene-based films. Molecular interactions between polymers and potassium alum affected mechanical, thermal, and other properties and was confirmed by Fourier transform infrared spectroscopy, X-ray diffraction, energy dispersive X-ray, and thermo gravimetric analysis of the films. This bio-composite film may be suitable to replace non-biodegradable and costly biodegradable packaging materials.

Sign in / Sign up

Export Citation Format

Share Document