Chitosan/polyvinyl alcohol/thiabendazoluim-montmorillonite bio-nanocomposite films: Mechanical, morphological and antimicrobial properties

Bourakadi, Khadija El; Merghoub, Nawal; Fardioui, Meriem; Mekhzoum, Mohamed El Mehdi; Kadmiri, Issam Meftah; Essassi, El Mokhtar; Qaiss, Abou el kacem; Bouhfid, Rachid

doi:10.1016/j.compositesb.2019.05.042

Cited by 85 publications

(30 citation statements)

References 36 publications

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“…Higher mechanical properties can be explained by the formation of hydrogen bonds between the SA and APP, which make them more compatible with the interface filler matrix. However, the addition of AgNPs leads to the decrease in hydrogen bond interaction between SA and APP, the separation of film liquid phase, and the damage of compatibility between SA and APPs [ 34 ]. This conclusion is similar to the study of Kim et al [ 35 ].…”

Section: Resultsmentioning

confidence: 99%

Investigation of Ultrasonic Treatment on Physicochemical, Structural and Morphological Properties of Sodium Alginate/AgNPs/Apple Polyphenol Films and Its Preservation Effect on Strawberry

Lan

Shama

et al. 2020

Polymers

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An antibacterial and anti-oxidation composite film was prepared by a casting method using sodium alginate (SA) and apple polyphenols (APPs) as the base material and glycerol as the plasticizer. Silver nanoparticles (AgNPs) were deposited by ultrasonic-assisted electrospray method. The degree of influence of the addition ratio of SA and AgNPs and different ultrasonic time on the mechanical properties, barrier properties, optical properties, and hydrophilicity of the composite film was explored. The composite films were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that the SA: AgNPs ratio of 7:3 and the ultrasonic time for 30 min have the best comprehensive performance, and SA/AgNPs/APP films showed the lowest water vapor permeability value of 0.75 × 10−11 g/m·s·Pa. The composite film has good strength and softness, with tensile strength (TS) and elongation at break (E) at 23.94 MPa and 29.18%, respectively. SEM images showed that the surface of the composite film was smooth and the AgNPs’ distribution was uniform. The composite film showed broad antibacterial activity, and the antibacterial activity of Escherichia coli (92.01%) was higher than that of Staphylococcus aureus (91.26%). However, due to the addition of APP, its antioxidant activity can reach 98.39%, which has a synergistic effect on antibacterial activity. For strawberry as a model, the results showed that this composite film can prolong the shelf life of strawberries for about 8 days at 4 °C, effectively maintaining their storage quality. Compared with the commonly used PE(Polyethylene film) film on the market, it has a greater fresh-keeping effect and can be used as an active food packaging material.

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Section: Resultsmentioning

confidence: 99%

Investigation of Ultrasonic Treatment on Physicochemical, Structural and Morphological Properties of Sodium Alginate/AgNPs/Apple Polyphenol Films and Its Preservation Effect on Strawberry

Lan

Shama

et al. 2020

Polymers

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“…Polyvinyl alcohol (PVA) is a material with good structural properties but poor mechanical properties. That is why it is frequently reinforced with chitosan (Cs), which, in addition to improving the mechanical properties of the material, has amino (-NH2) groups, which makes its charge more positive [3][4][5][6][7][8][9]. Recent discoveries associated with conductive polymers have generated great interest recently.…”

Section: Introductionmentioning

confidence: 99%

Physico-Chemical Properties of a Hybrid Biomaterial (Pva/Chitosan) Reinforced With Conductive Fillers

Olarte¹,

Salgado²,

Rubio³

et al. 2021

Preprint

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A novel hybrid material based on Polyvinyl alcohol-Chitosan (PVA-Cs) was made, reinforced with conductive polymer fillers such as polypyrrole (PPy), Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS), carbon black (CB) and multi-wall carbon nanotubes (MW CNT). Our proposal is to use these fillers, which have not been studied in this context before, for obtaining composite materials, and to characterize them for the development of applications in microelectronics. FTIR analysis made evident the different func-tional groups present in the matrix and the fillers used. The use of quaternary mixtures (4 fillers) increased the contact angle, which increased the degree of hydrophobicity of the biocomposite. The Nyquist diagram of the analyzed samples showed a decrease in resistance and energy diffu-sion; the latter due to the transfer of electrons caused by the conductive polymers CB and the MWCNT. In the mechanical tension tests, Young's modulus values of 18.386 MPa were obtained, in contrast with the material matrix of PVA-Cs, which showed values of 11.628 MPa. Further-more, morphological analysis by SEM showed that the materials obtained were homogeneous, with no phase formation. The materials obtained showed higher electrical conductivity in the presence of the OH and NH2 groups, which could have possible applications in biopolymer elec-trodes.

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“…PVP ve PVA suda çözünür, biyouyumlu ve tüm oranlarda karıştırılabilir polimerlerdir (Tommalieh et al 2020). CS'ı PVA ve PVP gibi sentetik polimerlerle karıştırmak, biyobozunurluk korunurken, hibrit matrisin hidrofilik karakterini, film oluşturma özelliğini, biyolojik performansını arttırır ve maliyeti düşürür (Saeedi et al 2020, Bourakadi et al 2019, Husain et al 2018. Bu polimerlerin eşsiz özellikleri ve avantajlarına rağmen zayıf mekanik özellikleri, düşük elektrik ve termal iletkenliği endüstriyel kullanım alanlarını sınırlar (Özkan et al 2019).…”

Section: Introductionunclassified

CS/PVA/PVP/GO Hibrit Kompozitlerin Hazırlanması ve Optik Bant Boşluğu Enerjilerinin Belirlenmesi

Mergen¹

2021

Afyon Kocatepe University Journal of Sciences and Engineering

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Günümüzde düşük maliyetli, gelişmiş ve çevre dostu nano kompozit malzemeler geliştirme çabaları artmaktadır. Bu nano kompozit malzemelerin optik özellikleri, dolgu konsantrasyonları değiştirilerek kontrol edilebildikleri için mühendislik açısından kritik öneme sahiptir. Bu çalışmada, farklı konsantrasyonlarda grafen oksit (GO) içeren Kitosan/Poli (vinil alkol)/Poli (vinil pirolidon) (CS/PVA/PVP) kompozitler, iyi bilinen çözelti karıştırma, ultrasonik karıştırma ve döndürerek kaplama teknikleri ile hazırlandı. Kompozitlerdeki değişen GO konsantrasyonlarının optik özellikler üzerindeki etkisi araştırıldı. CS/PVA/PVP/GO kompozitlerin optik bant aralığı enerjileri (Eg) Tauc ve Soğurma Spektrumunu Fit Etme (ASF) yöntemleri kullanılarak elde edildi ve karşılaştırıldı. Ayrıca bant kuyruğu (Urbach) enerjisi (Eu), kırılma indisi (n), soğurma (α) ve sönüm (k) katsayısı gibi optik parametrelerdeki değişiklikler de araştırıldı. Sonuçlar, CS/PVA/PVP/GO kompozitlerin, ultraviyole koruma, kaplama, fotonik ve optoelektronik cihazlarda uygulanabilirliğinin umut verici olduğunu göstermektedir.

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Chitosan/polyvinyl alcohol/thiabendazoluim-montmorillonite bio-nanocomposite films: Mechanical, morphological and antimicrobial properties

Cited by 85 publications

References 36 publications

Investigation of Ultrasonic Treatment on Physicochemical, Structural and Morphological Properties of Sodium Alginate/AgNPs/Apple Polyphenol Films and Its Preservation Effect on Strawberry

Investigation of Ultrasonic Treatment on Physicochemical, Structural and Morphological Properties of Sodium Alginate/AgNPs/Apple Polyphenol Films and Its Preservation Effect on Strawberry

Physico-Chemical Properties of a Hybrid Biomaterial (Pva/Chitosan) Reinforced With Conductive Fillers

CS/PVA/PVP/GO Hibrit Kompozitlerin Hazırlanması ve Optik Bant Boşluğu Enerjilerinin Belirlenmesi

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