Properties of soy protein isolate/poly(vinyl alcohol) blend “green” films: Compatibility, mechanical properties, and thermal stability

2008 ◽  
Vol 110 (6) ◽  
pp. 3706-3716 ◽  
Author(s):  
Jun-Feng Su ◽  
Zhen Huang ◽  
Chuan-Min Yang ◽  
Xiao-Yan Yuan
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Soy Protein ◽  
Vinyl Alcohol ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Poly Vinyl Alcohol

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.

Environmental-Friendly Soy Protein Isolate/Poly(Vinyl Alcohol) Blend Films: Biodegradation Behaviors

2010 ◽  
Vol 178 ◽  
pp. 151-155 ◽  
Author(s):  
Jun Feng Su ◽  
Shan Shan Wang ◽  
Wen Long Xia
Keyword(s):  
Soy Protein ◽  
Vinyl Alcohol ◽  
Soy Protein Isolate ◽  
Oxidative Degradation ◽  
Color Stability ◽  
Protein Isolate ◽  
Aerobic Biodegradation ◽  
Poly Vinyl Alcohol ◽  
Negative Effects ◽  
Blend Films

The objective of this work was to investigate the color stability in air under photo-oxidative degradation influencing consumer acceptance and biodegradation behaviors in soil of soy protein isolate (SPI)/poly (vinyl alcohol) (PVA) blend packaging films during 30 days. The results showed that PVA could dilute the yellow color and make the SPI-based films less darkness in application and the transparency of SPI/PVA films at various stages of degradation was improved. Aerobic biodegradation of films in soil proved that the PVA compound interacting with protein imposed negative effects on biodegradation of blend films prolonging their decomposing time. The SPI/PVA blend films decomposed into small fragments of less complex molecules along with surface completely digested after 30 days.

Heat-sealing properties of soy protein isolate/poly(vinyl alcohol) blend films: Effect of the heat-sealing temperature

2010 ◽  
Vol 115 (3) ◽  
pp. 1901-1911 ◽  
Author(s):  
Jun-Feng Su ◽  
Xin-Yu Wang ◽  
Zhen Huang ◽  
Xiao-Yan Yuan ◽  
Min Li ◽  
...  
Keyword(s):  
Soy Protein ◽  
Vinyl Alcohol ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Poly Vinyl Alcohol ◽  
Blend Films ◽  
Heat Sealing
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