Synthesis, structural characterization, and tensile properties of fructose functionalized multi-walled carbon nanotubes/chitosan nanocomposite films

Mallakpour, Shadpour; Madani, Maryam

doi:10.1177/8756087915578184

Cited by 12 publications

(7 citation statements)

References 32 publications

(41 reference statements)

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“…The first weight loss step ( T d 1 ) is attributed to the evaporation of water absorbed in the CS and the second one ( T d 2 ) corresponds to the degradation and deacetylation of CS. This was similar to the results reported by other researchers . Figure a shows the TGA of CS film where the thermal degradation of the CS film occurs in a temperature range of 200°C–400°C.…”

Section: Resultssupporting

confidence: 89%

“…Figure c illustrates the FTIR of CS /MWCNTs composite film in which the absorption peaks at 3,357.46 and 2,921.66 cm −1 in the FTIR of CS /MWCNTs composite film are broadened compared with these peaks in the FTIR of CS film. This indicates that MWCNTs‐COOH interacted with CS matrix, and the hydrogen bonding among CS chains was partially destructed . These results could have positive effects on mechanical properties.…”

Section: Resultsmentioning

confidence: 93%

“…The absorption bands at 2,912 cm −1 are related to aliphatic sp3 C[sbond]H of MWCNTs. The characteristic absorption bands of MWCNTs‐COOH at 1,624 and 1,424 cm −1 pertain to the stretching of the carbon nanotube backbone . Furthermore, the absorption bands in the range of 870–1,150 cm −1 are associated with C‐O bond .…”

Section: Resultsmentioning

confidence: 98%

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Chitosan/MWCNTs composite as bone substitute: Physical, mechanical, bioactivity, and biodegradation evaluation

et al. 2018

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In the present research, via the solvent casting method, Chitosan(CS)/multiwalled carbon nanotubes (MWCNTs) nanocomposite films were prepared through the use of four different percentages (1, 1.5, 2, and 2.5 wt%) of CS as polymer matrix and two percentages (0.5 and 1 wt%) of MWCNTs as ceramic reinforcement. Based on the results of TGA, it was shown that the addition of MWCNTs augmented the thermal stability of CS film. The results of XRD showed that MWCNTs induced the crystallization of chitosan film and FTIR analysis demonstrated the formation of CS/MWCNTs composite film. According to the results of tensile tests, the highest strength belonged to 2.5 wt% CS/0.5 wt% MWCNTs nanocomposite film which was increased by 176% (from 18.26 to 50.46 MPa) in comparison to tensile strength of 2.5 wt% CS film and the Young's modulus of CS/MWCNTs film increased by 195% (from 406 to 1,197 MPa) in comparison to the Young's modulus of CS film. The best film with 2.5 wt% CS/0.5 wt % MWCNTs was selected as an optimum sample for other experiments. Contact angle analysis indicated that with the addition of MWCNTs, the contact angle of CS films decreased. The results of bioactivity test showed that adding 0.5 wt% MWCNTs to CS film improved the bioactivity of CS film. Based on the biodegradability evaluation, the addition of MWCNTs to CS film reduced the degradation rate of CS film. The research illustrated the potentials of CS/MWCNTs in bone substitute. POLYM. COMPOS., 40:E1622–E1632, 2019. © 2018 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 93%

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Chitosan/MWCNTs composite as bone substitute: Physical, mechanical, bioactivity, and biodegradation evaluation

et al. 2018

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“…Theses disadvantages of chitosan are attributed to the hydrophilic nature of chitosan [5, 6]. A commonly used method to improve the mechanical and barrier properties of chitosan is by the addition of nanoscale reinforcements into chitosan chains [7, 8, 9, 10, 11]. Montmorillonite clay has been widely used as an effective reinforcement in polymer/clay nanocomposites due to consisted of the several silicate layers, high aspect ratio and strong interaction with polymer matrix [12, 13, 14, 15].…”

Section: Introductionmentioning

confidence: 99%

Water sorption, antimicrobial activity, and thermal and mechanical properties of chitosan/clay/glycerol nanocomposite films

Kusmono

Abdurrahim

2019

Heliyon

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Chitosan-based nanocomposites films with different clay loadings (0, 5, 10, 15 wt %), with (10, 20, 30 wt%) and without glycerol as plasticizer, were prepared by solution casting. The effects of the addition of clay and glycerol on the thermal, mechanical, water absorption, and antimicrobial activity properties of chitosan/clay nanocomposites films were investigated in this study. XRD results indicated that the intercalated structure was obtained in the chitosan/clay nanocomposites with and without glycerol. The thermal stability of the chitosan was significantly enhanced by the presence of clay and glycerol. It was found that the addition of clay into the chitosan improved significantly the tensile strength and tensile modulus. The highest values in strength and stiffness were achieved for the chitosal/clay nanocomposites with 5 wt% of clay and 20 wt% of glycerol. The addition of both clay and glycerol reduced drastically the ductility of chitosan. The best water resistance was obtained for the chitosan film containing 5 wt% of clay and 20 wt% of glycerol. The chitosan/clay nanocomposite film had potential for application of alternative food packing materials.

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“…1 Chitosan (CS) is a crystalline polymer in solid form, which is nontoxic, biodegradable, and biocompatible. 2 Both thermoplastic and thermosetting polymers have been reinforced with natural materials. CS and other natural materials are promising alternatives to replace synthetic fibers.…”

Section: Introductionmentioning

confidence: 99%

Scientific potential of chitosan blending with different polymeric materials: A review

Kausar

2016

Journal of Plastic Film & Sheeting

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Chitosan, the second most abundant natural fiber after cellulose, is a partially deacetylated polymer of N-acetyl-d-glucosamine. Chitosan is nontoxic, biodegradable, and biocompatible. It also has film-forming properties. Chitosan is blended with many polymeric materials such as: poly(methyl methacrylate), epoxy, polystyrene, polyaniline, polysulfone, and polycarbonate. Chitosan has been used as a filler as well as a fiber material in thermoplastic polymers. However, polymer/chitosan blends may show incompatibility owing to repulsion between polar chitosan functional groups and hydrophobic polymeric matrices. Other limitations associated with the using chitosan in blends are high moisture absorption, low processing temperature, low heat stability, and low flame resistance. Consequently, the fabrication techniques, miscibility, mechanical strength, morphology, and structural features of polymer/chitosan blends have been investigated. Moreover, chitosan addition as a compatibilizer in blended systems has been explored. There are many potential applications for polymer/chitosan in membrane technology, dye removal, packaging materials, drug delivery, tissue engineering, and biochemical relevance.

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Synthesis, structural characterization, and tensile properties of fructose functionalized multi-walled carbon nanotubes/chitosan nanocomposite films

Cited by 12 publications

References 32 publications

Chitosan/MWCNTs composite as bone substitute: Physical, mechanical, bioactivity, and biodegradation evaluation

Chitosan/MWCNTs composite as bone substitute: Physical, mechanical, bioactivity, and biodegradation evaluation

Water sorption, antimicrobial activity, and thermal and mechanical properties of chitosan/clay/glycerol nanocomposite films

Scientific potential of chitosan blending with different polymeric materials: A review

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