Enhancement of Mechanical and Thermal Properties of Polycaprolactone/Chitosan Blend by Calcium Carbonate Nanoparticles

Abdolmohammadi, Sanaz; Siyamak, Samira; Ibrahim, Nor Azowa; Yunus, Wan Md Zin Wan; Rahman, Mohamad Zaki Ab.; Azizi, Susan; Fatehi, Asma

doi:10.3390/ijms13044508

Cited by 143 publications

(85 citation statements)

References 40 publications

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“…The increased thermal stability of PP composites can be attributed to enhanced adhesion between filler and matrix. The effect is much more pronounced in the case of RHA incorporation than that CC because its porous structure offers enhanced interfacial interactions . It is notable that a small amount of residue left after combustion of neat PP is ~4.6% because all the organic components decompose into gaseous products .…”

Section: Resultsmentioning

confidence: 99%

Interfacial strengthening of polypropylene composites via bimodal porosity in Rice husk ash: Comparison with calcium carbonate reinforcement

Sharma

Lohia²,

Sharma³

et al. 2018

J of Applied Polymer Sci

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Polypropylene is used in the textile industry in the manufacturing of plastic yarns, tapes, etc., but its low tensile strength and Young's modulus limits its associated applications. Composites of polypropylene with reinforcement of CaCO3 and rice husk ash were processed by compression molding. Bimodal porosity in rice husk ash particles has shown an improved interfacial anchoring effect via capillary effect resulting in enhanced mechanical properties, whereas such an effect is not observed with CaCO3 reinforcement in polypropylene matrix. On reinforcement with 10 wt % of each of rice husk ash and CaCO3, thermal decomposition temperature of polypropylene (333.3 °C) shifted to higher value of 415.9 °C and polypropylene Young's modulus (749.5 MPa) increased to 789.5 MPa (by 5.3%), but tensile strength decreased from 23.5 to 21.2 MPa (by 2.3 MPa only). The isolated contribution of CaCO3 and rice husk ash has been delineated, and resulting interfacial strengths have been quantified using analytical models. Rice husk ash has shown a stronger interfacial anchoring and can effectively replace CaCO3 as reinforcement for achieving improved mechanical and thermal properties of polypropylene composites. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46989.

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Section: Resultsmentioning

confidence: 99%

Interfacial strengthening of polypropylene composites via bimodal porosity in Rice husk ash: Comparison with calcium carbonate reinforcement

Sharma

Lohia²,

Sharma³

et al. 2018

J of Applied Polymer Sci

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“…The PEGMA‐ graft ‐CSNP/PLA blend possessed a higher thermal stability compared to the neat PLA; this was due to the high thermal stability of CS. The better adhesion between the PEGMA‐ graft ‐CSNPs and PLA matrix (Figure ) may help to reduce the diffusion of volatile decomposition products as a result of the homogeneous dispersion of the PEGMA‐ graft ‐CSNPs within the polymer blend . The thermal stability of the PEGMA‐ graft ‐CSNP/PLA blend was comparable to PLA containing modified montmorillonite (3% w/w); the thermal stability increased with 10–15°C .…”

Section: Resultsmentioning

confidence: 99%

Poly(ethylene glycol) methyl ether methacrylate‐graft‐chitosan nanoparticles as a biobased nanofiller for a poly(lactic acid) blend: Radiation‐induced grafting and performance studies

Kongkaoroptham

Piroonpan

Hemvichian³

et al. 2015

J of Applied Polymer Sci

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In this study, we aimed to modify chitosan (CS) as a novel compatible bio-based nanofiller for improving the compatibility including the thermal and mechanical properties of poly(lactic acid) (PLA). The modification of CS with poly(ethylene glycol) methyl ether methacrylate (PEGMA) was done by radiation-induced graft copolymerization. The effects of the dose rate, irradiation dose, and PEGMA concentration on the degree of grating (DG) were investigated. The chemical structure, packing structure, thermal stability, particle morphology, and size of the PEGMA-graft-chitosan nanoparticles (PEGMA-graft-CSNPs) were characterized by fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, and transmission electron microscopy. The compatibility of the PEGMA-graft-CSNP/PLA blends was also assessed by field emission scanning electron microscopy. The PEGMAgraft-CSNPs exhibited a spherical shape with the DG and particle sizes in the ranges of 3-145% and 35-104 nm, respectively. The PEGMA-graft-CSNPs showed compatible with PLA because of the grafted PEGMA segment. A model case study of the PEGMA-graft-CSNP/PLA blend demonstrated the improvement not only the compatibility but also thermal stability flexibility, and ductility of PLA.

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“…In addition, the increase in the weight residues at 400°C suggested successful formation of PLLA‐MCM41 possessing higher amount of silicas. The improved thermal stability could be attributed to the stronger interaction between the PLLA‐MCM41 nanoparticles and PLTG matrix and the homogeneous dispersion of the nanoparticles . These factors restrained the movement of PLTG molecule chains that increased the decomposition temperature.…”

Section: Resultsmentioning

confidence: 99%

“…The improved thermal stability could be attributed to the stronger interaction between the PLLA-MCM41 nanoparticles and PLTG matrix and the homogeneous dispersion of the nanoparticles. 41 These factors restrained the movement of PLTG molecule chains that increased the decomposition temperature. The importance of filler-matrix interactions and nanoparticles dispersion was confirmed by the thermal behavior of the PLTG/PLLA-MCM41 and PLTG/MCM41 composites.…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

Biodegradable polyester/modified mesoporous silica composites for effective bone repair with self‐reinforced properties

Wang

Yan

et al. 2019

Polymers for Advanced Techs

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A series novel composites based on poly(L‐lactide) (PLLA) oligomer modified mesoporous silica (MCM41) homogeneous dispersed into poly(L‐lactide‐co‐trimethylene carbonate‐co‐glycolide) (PLTG) terpolymer has been successfully prepared. The structure of PLTG terpolymer was characterized by 1H NMR. The structure and properties of modified and unmodified MCM41 were attested by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analyzer (TGA), X‐ray diffraction (XRD), N2 adsorption–desorption, scanning electron microscope (SEM), and transmission electron microscope (TEM), which demonstrated that the MCM41 was successfully grafted by the PLLA oligomer. The effect of different concentration of modified MCM41 in PLTG matrix on thermal properties, mechanical properties, and hydrophilicity was investigated by TGA, differential scanning calorimetry (DSC), mechanical testing, contact angle measurement, and SEM. The results of mechanical tests showed that 5 wt% of modified MCM41 nanoparticles gave rise to optimal reinforcing effect. The tensile strength, Young's modulus, and elongation at break of the PLTG/PLLA‐MCM41 (5%) composites were 33.2 Mpa, 1.58 Gpa, and 268.7%, respectively, which were all higher than the PLTG/MCM41 (5%) composites and pristine PLTG matrix, which were due to good interfacial adhesion between the PLTG matrix and MCM41 nanoparticles. TGA and DSC have shown that 5% modified MCM41 in the PLTG increased the temperature of composite degradation and Tg. Water contact angle measurement showed the hydrophilicity of the composites increases with the increase of modified MCM41 content. The live/dead assay showed that the modified MCM41 existing on the PLTG matrix presents very excellent cytocompatibility. Therefore, the novel composite material represents promising way for bone tissue engineering application.

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Enhancement of Mechanical and Thermal Properties of Polycaprolactone/Chitosan Blend by Calcium Carbonate Nanoparticles

Cited by 143 publications

References 40 publications

Interfacial strengthening of polypropylene composites via bimodal porosity in Rice husk ash: Comparison with calcium carbonate reinforcement

Interfacial strengthening of polypropylene composites via bimodal porosity in Rice husk ash: Comparison with calcium carbonate reinforcement

Poly(ethylene glycol) methyl ether methacrylate‐graft‐chitosan nanoparticles as a biobased nanofiller for a poly(lactic acid) blend: Radiation‐induced grafting and performance studies

Biodegradable polyester/modified mesoporous silica composites for effective bone repair with self‐reinforced properties

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