Preparation, Characterization, and Biodegradability Assessment of Maize Starch-(PVOH)/Clay Nanocomposite Films

High-strength elastic nanocomposite materials were successfully prepared from waxy maize starch nanocrystals as the reinforcing phase and waterborne polyurethane (WPU) as the matrix by casting and evaporating. Sulfuric acid hydrolysis of waxy maize starch granules yielded the crystalline platelets of the starch nanocrystals with an average equivalent diameter of 25–40 nm. The morphology, thermal behavior and mechanical properties of the nanocomposite films were investigated by means of transmission electron microscopy, wide-angle X-ray diffraction, scanning electron microscopy, ultraviolet-visible spectroscopy, thermogravimetric analysis, differential scanning calorimetry and tensile testing. The results revealed that the pre-dispersing process made a good effort on dispersing starch nanocrystals into the WPU matrix as small aggregates, and strong interactions occurred between filler and matrix, leading to the efficient strengthening of the composites. The films having 1 wt% starch nanocrystal, rested for one week in 75% RH, exhibited a significant increase from 0.6 to 3.2 MPa for Young's modulus and from 10.4 to 24.1 MPa for tensile strength. Interestingly, they showed high elongation at break, and remained basically in the range from 1148 to 1136%. Further, the WPU based composites possessed good thermal stability. This work provided a new environmentally friendly pathway to prepare WPU based elastomer with high strength.

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Investigation on the Effects of Glycerol and Clay Contents on the Structure and Mechanical Properties of Maize Starch Nanocomposite Films

Starch - Stärke ◽

10.1002/star.201900166 ◽

2020 ◽

Vol 72 (3-4) ◽

pp. 1900166 ◽

Cited By ~ 1

Author(s):

Gabriel Mansour ◽

Maria Zoumaki ◽

Anna Marinopoulou ◽

Stylianos N. Raphaelides ◽

Dimitris Tzetzis ◽

...

Keyword(s):

Mechanical Properties ◽

Nanocomposite Films ◽

Maize Starch

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Microstructural and Finite Element Analysis - Assisted Nanomechanical Characterization of Maize Starch Nanocomposite Films

Materials Research ◽

10.1590/1980-5373-mr-2020-0409 ◽

2021 ◽

Vol 24 (2) ◽

Author(s):

G. Mansour ◽

M. Zoumaki ◽

K. Tsongas ◽

D. Tzetzis

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Nanocomposite Films ◽

Maize Starch ◽

Element Analysis

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STRUCTURE AND MECHANICAL PROPERTIES OF Nb-Al-N NANOCOMPOSITE FILMS AS A FUNCTION OF THE DEPOSITION PARAMETERS

High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes) ◽

10.1615/hightempmatproc.2016015994 ◽

2015 ◽

Vol 19 (2) ◽

pp. 179-187 ◽

Cited By ~ 2

Author(s):

Volodymyr Ivashchenko ◽

Vladyslav Rogoz ◽

Pavlo Skrynskiy ◽

Czeslaw Kozak ◽

Marek Opielak

Keyword(s):

Mechanical Properties ◽

Nanocomposite Films ◽

Deposition Parameters

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Formulation and Evaluation of Chitosan-Polyaniline Nanocomposites for Controlled Release of Anticancer Drug Doxorubicin

International Journal of Drug Delivery Technology ◽

10.25258/ijddt.v8i2.13874 ◽

2018 ◽

Vol 8 (2) ◽

Author(s):

Dillip Kumar Behera ◽

Kampal Mishra ◽

Padmolochan Nayak

Keyword(s):

Tensile Strength ◽

Drug Release ◽

Nanocomposite Films ◽

Casting Method ◽

Sustained Drug Release ◽

In Vitro Drug Release ◽

Clay Particles ◽

Solution Casting Method ◽

Nanoclay Content

In this present work, chitosan (CS) crosslink with polyaniline (PANI) with montmorilonite (MMT) called as (CSPANI/MMT) and CS crosslink with PANI without MMT called as (CS-PANI) were prepared by employing the solution casting method. Further the formation of nanocomposites CS-PANI/MMT and CS-PANI were investigated using XRD, FTIR, SEM and tensile strength. Water uptake and swelling ratio of the CS-PANI and CS-PANI/MMT were found to decrease with increase in concentration of clay. Mechanical properties of the CS-PANI and CS-PANI/MMT were assessed in terms of tensile strength and extensibility using texture analyzer. Increase in tensile strength and reduction in extensibility was reported with increase in the nanoclay content. In vitro drug release study on CS-PANI and CS-PANI/MMT indicated pronounced sustained release of doxorubicin by the incorporation of clay particles in the CS polymer matrix. Overall CSPANI/MMT nanocomposite films exhibited improved mechanical and sustained drug release properties than CS-PANI.

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A comparison of the effect of native and sonicated Maize starch on batter rheology and nugget quality

International Journal of Advanced Life Sciences ◽

10.26627/ijals/2017/10.04.0038 ◽

2017 ◽

Vol 10 (4) ◽

pp. 448-459

Author(s):

Sepideh Yosefzadeh Sani* ◽

◽

Ali Mortazavi** ◽

Zahra Sheikholeslami*** ◽

Amir Hosesein Elhamirad***** ◽

...

Keyword(s):

Maize Starch

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Nanocomposites: - A Recent Overview

Global Journal of Medical Research ◽

10.34257/gjmrbvol20is7pg9 ◽

2020 ◽

pp. 9-21

Author(s):

Pavan C ◽

Madhavi BLR

Keyword(s):

Targeted Drug Delivery ◽

Current Trend ◽

Nanocomposite Films ◽

Cancer Drug ◽

Preparation Methods ◽

Standard Material ◽

Global Issues ◽

Sustainable Solutions ◽

Anti Cancer ◽

Treatment And Diagnosis

Nanocomposites are substances that incorporate nanoparticles (0.5-5% by weight) into a matrix of standard material, which enhances the mechanical strength, toughness including thermal or electrical conductivity and other properties. Nanocomposites are versatile in terms of their applications such as anti-corrosive, healing of bones, sensors, environmental protection, packaging, wastewater treatment, and diagnosis of tumors and other diverse uses. They may be fabricated by blending nanofillers with a polymer to produce a composite. The current trend of processing is by polymerizing monomers. Nanocomposites serve as sustainable solutions to curb global issues. Evaluation is performed on properties such as mechanical, thermal, dispersion, and toxicological. Some marketed products of nanocomposites include In Mat (coating), FiltekZ350 XT by 3M (tooth fillers), chitosan/organic rectorite nanocomposite films (bactericidal activity), graphene oxide/Carboxymethylcellulose (targeted drug delivery of anti-cancer drug doxorubicin), MD1 Flex, Nano Clean MD1, Plactive TM (Antimicrobial nanocomposites) and NovaProTM(Tooth fillers). This article discusses about Nanocomposites–their types, preparation methods, recent research and applications.

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