Mechanical properties of silk fibroin-microcrystalline cellulose composite films

2002 ◽  
Vol 86 (13) ◽  
pp. 3425-3429 ◽  
Author(s):  
Yasutomo Noishiki ◽  
Yoshiharu Nishiyama ◽  
Masahisa Wada ◽  
Shigenori Kuga ◽  
Jun Magoshi
Keyword(s):  
Mechanical Properties ◽  
Silk Fibroin ◽  
Microcrystalline Cellulose ◽  
Composite Films ◽  
Cellulose Composite

Preparation of Silk Fibroin/Bacterial Cellulose Composite Films and their Mechanical Properties

2007 ◽  
Vol 342-343 ◽  
pp. 741-744 ◽  
Author(s):  
Rira Jung ◽  
Hyoung Joon Jin
Keyword(s):  
Mechanical Properties ◽  
Bacterial Cellulose ◽  
Silk Fibroin ◽  
Composite Films ◽  
Water Molecules ◽  
X Ray Diffraction ◽  
X Ray ◽  
The Individual ◽  
Fibroin Solution ◽  
Cellulose Composite

We prepared composite films consisting of two biocompatible materials, bacterial cellulose and silk fibroin. Aqueous silk fibroin solution and bacterial cellulose excreted by Acetobacter xylinum were used to fabricate the composite films. It was verified by field emission scanning electron microscopy and X-ray diffraction that the two components were finely blended and that the silk fibroin was crystallized during the composition of the films. The silk fibroin penetrated well between the individual fibrils of the bacterial cellulose, while the water molecules inside the pellicular bacterial cellulose were evaporating. The composite films did not dissolve in water due to the crystallization of the silk fibroin in the composite films. We also observed the change in the mechanical properties of the composite films according to the water content. The composite films became more flexible and tougher when they were dipped in water, whereas they were very brittle in the dehydrated state.

scholarly journals Physical and mechanical properties of modified bacterial cellulose composite films

2016 ◽  
Author(s):  
Lucia Indrarti ◽  
Indriyati ◽  
Anung Syampurwadi ◽  
Sri Pujiastuti
Keyword(s):  
Mechanical Properties ◽  
Bacterial Cellulose ◽  
Composite Films ◽  
Physical And Mechanical Properties ◽  
Cellulose Composite

scholarly journals Morphology, mechanical properties, and biodegradability of all‐cellulose composite films from oil palm empty fruit bunch

SPE Polymers ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 4-14 ◽  
Author(s):  
Nur Liyana Izyan Zailuddin ◽  
Azlin Fazlina Osman ◽  
Rozyanty Rahman
Keyword(s):  
Mechanical Properties ◽  
Oil Palm ◽  
Composite Films ◽  
Empty Fruit Bunch ◽  
Cellulose Composite

Graphene oxide/cellulose composite films with enhanced UV-shielding and mechanical properties prepared in NaOH/urea aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (77) ◽  
pp. 73358-73364 ◽  
Author(s):  
Xiaoting Liu ◽  
Tongping Zhang ◽  
Kai Pang ◽  
Yongxin Duan ◽  
Jianming Zhang
Keyword(s):  
Mechanical Properties ◽  
Aqueous Solution ◽  
Graphene Oxide ◽  
Composite Films ◽  
Microstructure Formation ◽  
Uv Shielding ◽  
Sampling Process ◽  
Urea Aqueous Solution ◽  
Ultraviolet Shielding ◽  
Cellulose Composite

The scheme demonstrates the sampling process and microstructure formation of GO/cellulose composite films, which have excellent ultraviolet-shielding and mechanical properties with optimal GO loading.

Preparation and characterization of whey protein isolate/chitosan/microcrystalline cellulose composite films

2021 ◽  
Author(s):  
Xinyu Zhai ◽  
Xia Zhang ◽  
Huanping Ao ◽  
Yuxi Yin ◽  
Xue Li ◽  
...  
Keyword(s):  
Whey Protein ◽  
Microcrystalline Cellulose ◽  
Composite Films ◽  
Whey Protein Isolate ◽  
Protein Isolate ◽  
Cellulose Composite

scholarly journals Hydrophobic modification of nanocellulose and all-cellulose composite films using deep eutectic solvent as a reaction medium

Cellulose ◽  
2021 ◽  
Author(s):  
Matias Lakovaara ◽  
Juho Antti Sirviö ◽  
Mostafa Y. Ismail ◽  
Henrikki Liimatainen ◽  
Rafal Sliz
Keyword(s):  
Mechanical Properties ◽  
Photoelectron Spectroscopy ◽  
Composite Films ◽  
Deep Eutectic Solvent ◽  
Reaction Medium ◽  
High Strength ◽  
Contact Angles ◽  
Angle Measurements ◽  
Diffuse Reflectance Infrared ◽  
Cellulose Composite

Abstract In this work, deep eutectic solvent (DES) based on imidazole and triethylmethylammonium chloride was used as a reaction medium for the esterification of cellulose nanofiber (CNF) and all-cellulose composite (ACC) films with n-octylsuccinic anhydride (OSA) to obtain high strength and sustainable films with increased hydrophobicity. Diffuse reflectance infrared Fourier transform spectroscopy and X-ray photoelectron spectroscopy were used to prove the success of the modification. The mechanical strength of the modified films was analyzed in dry, humid, and wet conditions, and the hydrophobicity of the films was indicated in terms of contact angle measurements. In addition, water absorption and transparency of the films were characterized. The modification was proven to be simple and fast, and mild conditions of 80 °C reaction temperature and 1 h reaction time were used. DES/OSA- modified CNF film exhibited better mechanical properties in dry, humid, and wet conditions compared to reference CNF film, and DES/OSA-modified ACC film displayed notable higher mechanical properties in wet state compared to that of reference CNF film (31 MPa tensile strength and 6.1% strain at break vs. 18 MPa and 2.2%, respectively). These improvements were partly attributed to higher contact angles of modified films (ACC-DES/OSA 60° and CNF-DES/OSA 51°) compared to CNF film (37°). Graphic abstract

Pullulan–nanofibrillated cellulose composite films with improved thermal and mechanical properties

2012 ◽  
Vol 72 (13) ◽  
pp. 1556-1561 ◽  
Author(s):  
Eliane Trovatti ◽  
Susana C.M. Fernandes ◽  
Laurent Rubatat ◽  
Denilson da Silva Perez ◽  
Carmen S.R. Freire ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Films ◽  
Nanofibrillated Cellulose ◽  
Thermal And Mechanical Properties ◽  
Cellulose Composite

Properties of All-Cellulose Composite Films from Coconut Shell Powder and Microcrystalline Cellulose

2015 ◽  
Vol 754-755 ◽  
pp. 39-43 ◽  
Author(s):  
H. Farah Norain ◽  
Husseinsyah Salmah ◽  
M. Mostapha Zakaria
Keyword(s):  
Microcrystalline Cellulose ◽  
Composite Films ◽  
Selective Dissolution ◽  
Coconut Shell ◽  
Lignocellulosic Material ◽  
Elongation At Break ◽  
Cellulose Composites ◽  
Coconut Shell Powder ◽  
Cellulose Composite ◽  
Shell Powder

All-cellulose composite using coconut shell powders (CSP) as natural lignocellulosic material and microcrystalline cellulose (MCC) were prepared by a surface selective dissolution. The effect of CSP content on tensile properties and crystallinity of CSP/MCC all-cellulose composites were investigated. It was found that the addition of CSP have increased the tensile strength and modulus of elasticity up to 3 wt% and decreased with further increment of CSP content. The elongation at break decreased with CSP content. The crystallinity of cellulose composites increased with the increasing of CSP content.

Roles of xyloglucan and pectin on the mechanical properties of bacterial cellulose composite films

Cellulose ◽  
2013 ◽  
Vol 21 (1) ◽  
pp. 275-289 ◽  
Author(s):  
Jin Gu ◽  
Jeffrey M. Catchmark
Keyword(s):  
Mechanical Properties ◽  
Bacterial Cellulose ◽  
Composite Films ◽  
Cellulose Composite
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