Preparation and characterization of interface-modified PLA/starch/PCL ternary blends using PLLA/triclosan antibacterial nanoparticles for medical applications

Davoodi, Saeed; Oliaei, Erfan; Davachi, Seyed Mohammad; Hejazi, Iman; Seyfi, Javad; Heidari, Behzad Shiroud; Ebrahimi, Hossein Pasha

doi:10.1039/c6ra07667j

Cited by 50 publications

(47 citation statements)

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“…All the adjustments were carried out according to ASTM D3418 standard. The degree of crystallinity ( X t ) for samples was determined according to

X_{t} (() %) = \frac{Δ H_{m} - Δ H_{c}}{Δ H_{m}^{0}} \times 100

, where Δ H m and Δ H c are the enthalpies of melting and cold crystallization and

{Δ H}_{m}^{0}

is melting enthalpy of 100% crystalline LDPE, respectively .…”

Section: Methodsmentioning

confidence: 99%

“…The surface free energy of every discrete component of samples was determined using Owens–Wendt by dispersive and polar surface energy (γ d and γ p ) with a set of test liquids on a solid surface, where s and l represent the solid and liquid surfaces, respectively, and θ is the contact angle of liquid droplet on the surface ( Eqs . and ) . After obtaining γ s for all the nanocomposites, the differences based on nanocontents can be compared.

γ_{s} = γ_{s}^{p} + γ_{s}^{d}

γ_{l} ((), 1 + cosθ) = 2 \sqrt{γ_{s}^{d} . γ_{l}^{d}} + 2 \sqrt{γ_{s}^{p} . γ_{l}^{p}}

…”

Section: Methodsmentioning

confidence: 99%

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Investigating Thermal and Surface Properties of Low‐Density Polyethylene/Nanoperlite Nanocomposites for Packaging Applications

Heidari¹,

Davachi

Sahraeian

et al. 2018

Polymer Composites

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Nanocomposites films based on low‐density polyethylene (LDPE) and different compositions of treated and untreated nanoperlite were prepared via melt mixing of the ingredients on a corotating twin‐screw extruder and then film blowing the nanocomposites. The physical dispersion of the nanocomposites is confirmed using Fourier transform infrared‐attenuated total reflectance (FTIR‐ATR) method. According to the thermal studies, the nanocomposites with untreated nanoperlite showing higher melting temperature and crystallinity, while their thermal stability is lower than nanocomposites with treated nanoperlite. The thermal and FTIR‐ATR studies also revealed the ethylene absorption of the nanocomposites. According to the surface energy results, the treatment of the nanoparticles completely changes the surface behavior and hydrophobicity of the films. Finally, peel color index and field study observations showed that increase in nanoperlite will increase the shelf life of the fruits; however, the nanocomposite with 6% untreated nanoperlite is the best choice for the packaging applications. POLYM. COMPOS., 40:2929–2937, 2019. © 2018 Society of Plastics Engineers

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“…All the adjustments were carried out according to ASTM D3418 standard. The degree of crystallinity ( X t ) for samples was determined according to

X_{t} (() %) = \frac{Δ H_{m} - Δ H_{c}}{Δ H_{m}^{0}} \times 100

, where Δ H m and Δ H c are the enthalpies of melting and cold crystallization and

{Δ H}_{m}^{0}

is melting enthalpy of 100% crystalline LDPE, respectively .…”

Section: Methodsmentioning

confidence: 99%

γ_{s} = γ_{s}^{p} + γ_{s}^{d}

γ_{l} ((), 1 + cosθ) = 2 \sqrt{γ_{s}^{d} . γ_{l}^{d}} + 2 \sqrt{γ_{s}^{p} . γ_{l}^{p}}

…”

Section: Methodsmentioning

confidence: 99%

Investigating Thermal and Surface Properties of Low‐Density Polyethylene/Nanoperlite Nanocomposites for Packaging Applications

Heidari¹,

Davachi

Sahraeian

et al. 2018

Polymer Composites

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“…In our previous study, TBC and PHB were with CNC selected as additives to improve the elongation at break of the PLLA [7]. Many scientists have been focused on studying the effect of plasticizers and other bio-polymer materials on the mechanical properties of PLLA like poly (glycolic acid) and amorphous poly (D,L-lactic acid) (PGA and PDLLA) blend [8], Poly (propylene carbonate) PPC [9,10], poly (butylene adipate) (BAT) [11], starch and PCL [12], Poly (Butylene Succinate-Co-Adipate) [13].…”

Section: Introductionmentioning

confidence: 99%

Role of lubricant with a plasticizer to change the glass transition temperature as a result improving the mechanical properties of poly(lactic acid) PLLA

Alamri

El-Hadi

AlQahtani

et al. 2020

Mater. Res. Express

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Poly (lactic acid) (PLLA) is the best important bioplastics derived from renewable resources like blackstrap molasses (sugar beet, date palm and sugar cane). PLLA is brittle and has a low elongation at break, which hinders its applications in the industry. One method to solve this problem is to improve its mechanical properties by adding plasticizers. The PLLA blends were prepared at first by solution blending as a solvent casting method and then melting using a hydraulic hot press. PLLA was blended with a plasticizer (GMS/ TA) to obtain a higher ductile of PLLA. The addition of lubricant and plasticizer (GMS/TA) leads to reduce the glass transition temperature (T g ), melting point (T m ), and the cold crystallization temperature (T cc ) in PLLA blends. The mechanical properties of PLLA have been investigated. The results indicated compatibility between PLLA and additives. The elongation at the break of the PLLA blend is stretched 270% with a tensile strength of 16 MPa. The addition of lubricant with the plasticizer leads to sliding the chain of PLLA, which causes to increase the strain. The physical blending has been demonstrated to be an effective technique to obtain an environmentally friendly PLLA blend with good mechanical properties, therefore it can be used in the food packaging sector.

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“…Biocompatible and environmentally friendly materials have received a remarkable interest from both academy and industry within the last two decades majorly due to the adverse influence of petroleum‐based plastics on the environment . Poly(lactic acid) (PLA) is a fully biodegradable polymer that could be produced from renewable resources . PLA is an aliphatic thermoplastic polyester which possesses high modulus, high strength, and good clarity, making it a promising potential replacement for petroleum‐based plastics .…”

Section: Introductionmentioning

confidence: 99%

“…[1,2] Poly(lactic acid) (PLA) is a fully biodegradable polymer that could be produced from renewable resources. [3][4][5][6][7] PLA is an aliphatic thermoplastic polyester which possesses high modulus, high strength, and good clarity, making it a promising potential replacement for petroleum-based plastics. [8] However, several drawbacks have limited its practical applications as compared with commodity thermoplastics such as polypropylene.…”

Section: Introductionmentioning

confidence: 99%

Effect of nanoparticle type and content on morphology, rheology, and crystallinity of poly(lactic acid) using titanium dioxide and polyhedral oligomeric silsesquioxane nanoparticles

et al. 2019

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In this study, under the same conditions, two different nanoparticles, namely, titanium dioxide (TiO2) and polyhedral oligomeric silsesquioxane (POSS) were added to the poly(lactic acid) (PLA) matrix via the solution casting technique. Morphological analysis showed that POSS had a better distribution within the PLA matrix. However, rheological analysis revealed the stronger influence of TiO2 on shear viscosity values, and a more notable viscosity upturn at moderate to high inclusions of TiO2 within the low shear rate zone. On the other hand, POSS was found to act as a lubricant even at a content of 3 wt% which was attributed to the very small dimensions of POSS. Such lubricating role, found from rheology, caused a boost in the crystallinity of PLA based on differential scanning calorimetry results. Moreover, it was found that TiO2 had an adverse effect on the crystallinity of PLA which was ascribed to the hindered motions of PLA chains upon addition of moderate to high inclusions of TiO2. The results of this study emphasize the crucial role of nanoparticle type and content on the properties of PLA.

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Preparation and characterization of interface-modified PLA/starch/PCL ternary blends using PLLA/triclosan antibacterial nanoparticles for medical applications

Abstract: In this study, the antibacterial, interface-modified ternary blends based on polylactic acid/starch/polycaprolactone were prepared for medical applications.

Cited by 50 publications

References 50 publications

Investigating Thermal and Surface Properties of Low‐Density Polyethylene/Nanoperlite Nanocomposites for Packaging Applications

Investigating Thermal and Surface Properties of Low‐Density Polyethylene/Nanoperlite Nanocomposites for Packaging Applications

Role of lubricant with a plasticizer to change the glass transition temperature as a result improving the mechanical properties of poly(lactic acid) PLLA

Effect of nanoparticle type and content on morphology, rheology, and crystallinity of poly(lactic acid) using titanium dioxide and polyhedral oligomeric silsesquioxane nanoparticles

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