Effect of Chemical and Physical Cross-Linking on Tensile Characteristics of Solution-Blown Soy Protein Nanofiber Mats

2012 ◽  
Vol 51 (46) ◽  
pp. 15109-15121 ◽  
Author(s):  
S. Sinha-Ray ◽  
S. Khansari ◽  
A. L. Yarin ◽  
B. Pourdeyhimi
Keyword(s):  
Soy Protein ◽  
Cross Linking ◽  
Nanofiber Mats

scholarly journals Stress-strain dependence for soy-protein nanofiber mats

2012 ◽  
Vol 111 (4) ◽  
pp. 044906 ◽  
Author(s):  
S. Khansari ◽  
S. Sinha-Ray ◽  
A. L. Yarin ◽  
B. Pourdeyhimi
Keyword(s):  
Soy Protein ◽  
Stress Strain ◽  
Strain Dependence ◽  
Nanofiber Mats

scholarly journals Fabrication and Properties of High-Content Keratin/Poly (Ethylene Oxide) Blend Nanofibers Using Two-Step Cross-Linking Process

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Yong Liu ◽  
Xia Yu ◽  
Jia Li ◽  
Jie Fan ◽  
Meng Wang ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Average Diameter ◽  
Diglycidyl Ether ◽  
Cross Linking ◽  
Electrospun Fibers ◽  
Hydrophobic Property ◽  
Poly Ethylene Oxide ◽  
Cross Linker ◽  
Poly Ethylene ◽  
Nanofiber Mats

High-content keratin/poly (ethylene oxide) (PEO) (90/10) blend nanofibers were prepared by electrospinning combined with a two-step cross-linking process. The keratin/PEO aqueous solution was firstly mixed with ethylene glycol diglycidyl ether (EGDE) as cross-linker and then electrospun into nanofibers. The resulting nanofibrous mats were cross-linked with EGDE vapor to decrease the solubility of nanofibers in water. The morphologies and properties of electrospun fibers were investigated by SEM, FTIR, TG, XRD, and contact angle testing, respectively. The results showed that the morphologies of nanofibers were uniform at the fiber average diameter of 300 nm with negligible bead defects by adding EGDE to keratin/PEO solutions. The cross-linking results showed that EGDE vapor could improve the hydrophobic property of blended nanofibers. The crystallinity of the keratin/PEO blend nanofiber mat increased from 13.14% for the uncross-linked sample to 21.54% and 35.15% for the first cross-linked and second cross-linked samples, respectively. Free defect nanofiber mats with high keratin content producing from this two-step cross-linking process are particularly promising for tissue engineering and cell-seeded scaffold.

scholarly journals Mechanical Properties and Biodegradability of the Kenaf/Soy Protein Isolate-PVA Biocomposites

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Jong Sung Won ◽  
Ji Eun Lee ◽  
Da Young Jin ◽  
Seung Goo Lee
Keyword(s):  
Mechanical Properties ◽  
Soy Protein ◽  
Low Cost ◽  
Soy Protein Isolate ◽  
Natural Fibers ◽  
Protein Isolate ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Adhesion Properties ◽  
The Cross

The effective utilization of original natural fibers as indispensable components in natural resins for developing novel, low-cost, eco-friendly biocomposites is one of the most rapidly emerging fields of research in fiber-reinforced composite. The objective of this study is to investigate the interfacial adhesion properties, water absorption, biodegradation properties, and mechanical properties of the kenaf/soy protein isolate- (SPI-) PVA composite. Experimental results showed that 20 wt% poly (vinyl alcohol) (PVA) and 8 wt% glutaraldehyde (GA) created optimum conditions for the consolidation of the composite. The increase of interfacial shear strength enhanced the composites flexural and tensile strength of the kenaf/SPI-PVA composite. The kenaf/SPI-PVA mechanical properties of the composite also increased with the content of cross-linking agent. Results of the biodegradation test indicated that the degradation time of the composite could be controlled by the cross-linking agent. The degradation rate of the kenaf/SPI-PVA composite with the cross-linking agent was lower than that of the composite without the cross-linking agent.

scholarly journals Improve Performance of Soy Flour Based-Adhesive with a Lignin Based Resin

2017 ◽  
Author(s):  
Xiaochun Zhang ◽  
Yuding Zhu ◽  
Youming Yu ◽  
Jiangang Song
Keyword(s):  
Bond Strength ◽  
Soy Protein ◽  
Crosslinking Density ◽  
Solid Content ◽  
Soy Flour ◽  
Cross Linking ◽  
Polycondensation Reaction ◽  
Improve Performance ◽  
Thermo Stability ◽  
Strength Improvement

The aim of this study was to using a lignin based resin (LB) to improve the performance of the soy flour based adhesive. Soy flour (SF), polyamidoamine-epichlorohydrin (PAE), LB was used to develop a plywood adhesive. The solid content and viscosity of the adhesive, functional groups, thermo-stability, and crystallinity of the cured adhesive were characterized and the performance of the resultant adhesive was evaluated by fabricating three-ply plywood. Results showed using LB and PAE mixture to modify SF adhesive improves dry and wet bond strength by 66.3 and 184.2%. PAE contributed more for the wet bond strength improvement and the LB contributed more for the dry bond strength. The improvement was attributed to: 1) LB/PAE reacted with the functions of the soy protein and form a cross-linking network; 2) Polycondensation reaction between LB molecules further improved crosslinking density of the adhesive and formed a interpenetration structure with crosslinked protein; 3)The easy penetration of LB on wood surface and formed more interlock with wood. The denser structure created by LB and PAE mixture improved the thermal stability and decreased the crystallinity of cured adhesive. The usage of the LB and PAE mixture increased solid content by 35.5%, meanwhile, makes its viscosity acceptable for the industrial application.

Antibacterial activity of photocatalytic electrospun titania nanofiber mats and solution-blown soy protein nanofiber mats decorated with silver nanoparticles

2013 ◽  
Vol 34 ◽  
pp. 35-40 ◽  
Author(s):  
Yiyun Zhang ◽  
Min Wook Lee ◽  
Seongpil An ◽  
Suman Sinha-Ray ◽  
Shahrzad Khansari ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Soy Protein ◽  
Nanofiber Mats
Sign in / Sign up

Export Citation Format

Share Document