scholarly journals Ultrasonic-modified montmorillonite uniting ethylene glycol diglycidyl ether to reinforce protein-based composite films

e-Polymers ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 433-442
Author(s):  
Hua He ◽  
Rui-jing Jia ◽  
Kai-qiang Dong ◽  
Jia-wen Huang ◽  
Zhi-yong Qin
Keyword(s):  
Ethylene Glycol ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Composite Films ◽  
Barrier Properties ◽  
Protein Isolate ◽  
Diglycidyl Ether ◽  
X Ray Diffraction ◽  
Protein Film ◽  
Modified Montmorillonite

Abstract A novel biodegradable protein-based material (UMSPIE) that consists of natural polymer soy protein isolate (SPI), ultrasonic-modified montmorillonite (UMMT), and ethylene glycol diglycidyl ether (EGDE) was produced by solution casting. Fourier infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TG), and scanning electron microscopy (SEM) were used to characterize the chemical structure and micro-morphologies of as-synthesized protein-based composite films. The results showed that the interlayer structure of MMT was destroyed by ultrasonic treatment, and the hydrogen bonding between SPI chains and the ultrasound-treated MMT plates was enhanced. The synergistic effect of UMMT and EGDE on SPI molecules made the network structure of the UMSPIE film denser. In addition, the mechanical and barrier properties of the as-synthesized films were explored. Compared with pure soy protein film, the tensile strength of the UMSPIE film has an increase of 266.82% (increasing from 4.4 to 16.14 MPa). From the above, the modified strategy of layered silicates filling combining crosslinking agents is considered as an effective method to improve the functional properties of bio-based polymer composites.

Robust, self-cleaning, anti-fouling, superamphiphobic soy protein isolate composite films using spray-coating technique with fluorinated HNTs/SiO2

2019 ◽  
Vol 174 ◽  
pp. 107002 ◽  
Author(s):  
Xiaorong Liu ◽  
Kaili Wang ◽  
Wei Zhang ◽  
Jizhi Zhang ◽  
Jianzhang Li
Keyword(s):  
Soy Protein ◽  
Soy Protein Isolate ◽  
Composite Films ◽  
Spray Coating ◽  
Protein Isolate ◽  
Coating Technique ◽  
Self Cleaning

Study of the retention and release of n-hexanal incorporated into soy protein isolate–lipid composite films

2010 ◽  
Vol 100 (1) ◽  
pp. 133-138 ◽  
Author(s):  
F. María Monedero ◽  
Alicia Hambleton ◽  
Pau Talens ◽  
Fréderic Debeaufort ◽  
Amparo Chiralt ◽  
...  
Keyword(s):  
Soy Protein ◽  
Soy Protein Isolate ◽  
Composite Films ◽  
Protein Isolate

Modification of Soy Protein Isolate-Polyethylene Glycol Composite Packaging Films with Ethylene Glycol

2015 ◽  
Vol 731 ◽  
pp. 565-568
Author(s):  
Pei Wang ◽  
Zhen Huang ◽  
Wei Zheng ◽  
Ma Dong Si
Keyword(s):  
Polyethylene Glycol ◽  
Ethylene Glycol ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Raw Material ◽  
Casting Method ◽  
Elongation At Break ◽  
E Coli ◽  
Solution Casting Method

With soy protein isolate (SPI) as the main raw material, and ethylene glycol (EG) and polyethylene glycol (PEG) as two additives, a number of SPI-based films were prepared through the solution casting method. Results show that the film flexibility is obviously improved after adding EG and the film tensile strength and elongation at break could reach more than 10.5 MPa and 140%, respectively. The antimicrobial results exhibit EG has higher antibacterial effect against both bacteria ofE. coliandS. aureusthan PEG-400.

Preparation and characterization of poly(vinyl alcohol) and 1,2,3-propanetriol diglycidyl ether incorporated soy protein isolate-based films

2015 ◽  
Vol 132 (39) ◽  
pp. n/a-n/a ◽  
Author(s):  
Fengjuan Xu ◽  
Wei Zhang ◽  
Shifeng Zhang ◽  
Li Li ◽  
Jianzhang Li ◽  
...  
Keyword(s):  
Soy Protein ◽  
Vinyl Alcohol ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Diglycidyl Ether ◽  
Poly Vinyl Alcohol

scholarly journals Construction of conductive hydroxyethyl cellulose/soy protein isolate/polypyrrole composite sponges and their performances

2021 ◽  
Author(s):  
Yanteng Zhao ◽  
Qiankun Yang ◽  
Qianqian Cheng ◽  
Junjie Ai ◽  
Mengna Feng ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Mechanical Tests ◽  
Protein Isolate ◽  
Hydroxyethyl Cellulose ◽  
X Ray Diffraction ◽  
Polypyrrole Composite ◽  
Tissue Restoration

Abstract In the present study, we have in situ synthesized polypyrrole (PPy) on the hydroxyethyl cellulose/soy protein isolate (HEC/SPI) sponges to construct electro-conductive HEC/SPI/PPy composite sponges (EHSS-Pn, n༞0). The composite sponges were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), conductivity and mechanical tests. The results indicated that EHSS-Pn still exhibit homogenous inter-connected macroporous structure for cell adhesion, proliferation and metabolism, indicating that the incorporation of PPy didn’t break the original HEC/SPI sponge structure. The electrical conductivity and mechanical properties of the HEC/SPI sponge were improved significantly by the incorporation of PPy. Cytocompatibility and hemocompatibility of all the sponges were evaluated by a series of in vitro experiments. The results of MTT assay and cell direct contact tests showed that the introduction of PPy didn’t cause any cytotoxicity and EHSS-Pn had good biocompatibility. Moreover, EHSS-Pn had good hemocompatibility and no significant side effects on the anticoagulant whole blood with the introduction of PPy. Therefore, the electro-conductive EHSS-Pn showed potential application in the tissue engineering field that requires electrical conductivity for stimulation or sensing such as neural tissue restoration.

Accelerated skin wound healing by soy protein isolate–modified hydroxypropyl chitosan composite films

2018 ◽  
Vol 118 ◽  
pp. 1293-1302 ◽  
Author(s):  
Yanan Zhao ◽  
Zijian Wang ◽  
Qiang Zhang ◽  
Feixiang Chen ◽  
Zhiyi Yue ◽  
...  
Keyword(s):  
Wound Healing ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Composite Films ◽  
Protein Isolate ◽  
Skin Wound ◽  
Skin Wound Healing ◽  
Chitosan Composite

Mechanical and Physical Properties of Soy Protein Films with pH-Modified Microstructures

2008 ◽  
Vol 14 (2) ◽  
pp. 119-125 ◽  
Author(s):  
A.N. Mauri ◽  
M.C. Añón
Keyword(s):  
Soy Protein ◽  
Disulfide Bonds ◽  
Mechanical Test ◽  
Soy Protein Isolate ◽  
Water Vapor Permeability ◽  
Barrier Properties ◽  
Protein Isolate ◽  
Vapor Permeability ◽  
Protein Films ◽  
The One

Mechanical, physical, and barrier properties of films obtained from soy protein isolate solutions at different pH were studied and correlated with the structural properties and the microstructure of films. Films obtained at pH 2 and 11, which had denser microstructures and a higher amount of disulfide bonds, showed a higher tensile strength — of about 1.05 MPa — and a higher Young's modulus — of at least 0.15MPa — than the one at pH 8. However, films formed at alkaline pH (8 and 11) exhibited a higher deformation than films at pH 2 — by about 70%. The presence of at least a protein fraction in native state allowed macromolecules to unfold during the mechanical test, reaching greater deformation before breaking. Acidic films exhibited higher water vapor permeability — of about 7 × 10-11 g/m s Pa — and water content — of about 1.5% — and a lower glass transition temperature — of at least 15 °C — than basic ones, due to their higher hydrophilic nature.

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