Binary PCL–waste photopolymer blends for biodegradable food packaging applications

Gürler, Nedim; Pekdemir, Mustafa Ersin; Torğut, Gülben; Kök, Mediha

doi:10.1016/j.molstruc.2023.134990

Cited by 7 publications

(3 citation statements)

References 38 publications

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“…[22] The sharp and strong signal seen at 1753 cm À 1 is attributed to the characteristic C=O stretching vibrations of PLA, and the signal at 1722 cm À 1 is attributed to the characteristic C=O stretching vibrations of PHA. [23] Asymmetric À CH bending appeared at 1452 cm À 1 , and symmetrical À CH bending appeared at 1380 cm À 1 . [24] The peaks at 1181 cm À 1 and 1089 cm À 1 are asymmetric and symmetric stretching of CÀ OÀ C stretching vibrations, respectively.…”

Section: Atr-ir Analysismentioning

confidence: 96%

Shape Memory Materials Based on a NiMnSb Alloy and Polylactic Acid/Polyhydroxyalkanoate: Evaluation of The Chemical And Physical Properties

Coşkun,

Kök,

Pekdemir

2024

ChemistrySelect

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In this study, NiMnSb alloy and PLA/PHA blend composite films with shape memory properties, which exhibit magnetic, elastic, and smart properties at the same time, were prepared by solution casting method. After the magnetic shape memory alloy (MSMA) used in different ratios was doped into the polymer, its effect on the characteristic functional groups of PLA and PHA was examined by attenuated total reflectance‐infrared spectroscopy (ATR‐IR). When the thermal data were examined, it was determined that as the NiMnSb ratio increased, the percentage residue amount increased and the highest residue amount at 500 °C was in the PLA/PHA blend composite film containing 20 % alloy. In X‐ray diffraction (XRD), it was observed that the characteristic signal of the NiMnSb alloy in polymer blend composite films became evident with increasing concentration at 2θ=45° (222). VSM results showed that when a ferromagnetic material such as NiMnSb was doped into the diamagnetic PLA/PHA blend film, the resulting composite now showed ferromagnetic properties. In addition, it has been determined that MSMA further improves this feature of the PLA/PHA blend, which has a shape memory effect.

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Section: Atr-ir Analysismentioning

confidence: 96%

Shape Memory Materials Based on a NiMnSb Alloy and Polylactic Acid/Polyhydroxyalkanoate: Evaluation of The Chemical And Physical Properties

Coşkun,

Kök,

Pekdemir

2024

ChemistrySelect

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“…This point is of crucial importance for applications such as food packaging or for bioapplications. [33][34][35][36] To overcome the problem of migration, different crosslinkable photoinitiators have been designed and synthesized. Besides, compared to the parent structure, chemical engineering has to be carried out in order to introduce these crosslinkable groups, what can furnish costly compounds.…”

Section: Introductionmentioning

confidence: 99%

Recent advances on phenothiazine-based oxime esters as visible light photoinitiators of polymerization

Dumur

2024

European Polymer Journal

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“…They can not only effectively extend the shelf life of food but also relieve the environmental impact of human activity. − Most of these materials consist of biodegradable polymers combined with natural or synthetic antibacterial agent. The biodegradable polymers commonly include polysaccharide, , protein, , the aliphatic polyester, , and so on. Polylactic acid (PLA), a common biodegradable aliphatic polyester, derives from renewable resources, such as corn, cassava, and sugar beet, and eventually degrades into water and carbon dioxide.…”

Section: Introductionmentioning

confidence: 99%

Development of Active Antibacterial CEO/CS@PLA Nonwovens and the Application on Food Preservation

Sun,

Wang,

Xie

et al. 2023

ACS Omega

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The biodegradable activity antibacterial materials have been widely applied on food preservation because they not only protect foods from pathogenic attacks but also relieve environmental pollution. Biodegradable melt-blown nonwovens (MB) have several advantages over the other materials in terms of a simpler and more environmentally friendly fabrication process, higher specific surface area, and lower cost. Herein, polylactic acid (PLA) MB is first modified by polydopamine (PDA) to activate the surface. Then, chitosan (CS) and cinnamon essential oil (CEO) are used to decorate the surface of the modified PLA MB via a simple one-pot method to prepare CEO/CS@PLA MB with different CEO contents. Compared with PLA MB, CEO/CS@PLA MB had a rougher surface and larger average fiber diameter, while the average pore diameter and air permeability reduced. The input of CEO led to a decrease in the tensile strength of CEO/CS@PLA MB and an obvious increase in the elongation at break. The combination of CS and CEO shows excellent synergistic antibacterial effect. The antibacterial efficiencies of CEO/CS@PLA MB against Escherichia coli and Staphylococcus aureus enhance with the increase of the CEO content. When the weight ratio of CS to CEO is 1:2, the antibacterial efficiencies of CEO2/CS@PLA MB against E. coli and S. aureus are 99.98 and 99.99%, respectively. When being applied to the preservation of fresh strawberry, CEO2/CS@PLA MB can effectively inhibit the microbial growth in strawberry and reduce decay, which extends the shelf time of strawberry.

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Binary PCL–waste photopolymer blends for biodegradable food packaging applications

Cited by 7 publications

References 38 publications

Shape Memory Materials Based on a NiMnSb Alloy and Polylactic Acid/Polyhydroxyalkanoate: Evaluation of The Chemical And Physical Properties

Shape Memory Materials Based on a NiMnSb Alloy and Polylactic Acid/Polyhydroxyalkanoate: Evaluation of The Chemical And Physical Properties

Recent advances on phenothiazine-based oxime esters as visible light photoinitiators of polymerization

Development of Active Antibacterial CEO/CS@PLA Nonwovens and the Application on Food Preservation

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