Sustainable multifunctional zinc oxide quantum dots-aided double-layers security paper sheets

Hasanin, Mohamed S.; Nassar, Mona A.; Hassan, Youssef R.; Piszczyk, Łukasz; Saeb, Mohammad Reza; Kot‐Wasik, Agata

doi:10.1016/j.heliyon.2023.e14695

Cited by 7 publications

(2 citation statements)

References 42 publications

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“…Previous research has demonstrated that wrapping paper can be given a variety of functions. For example, Hasanin et al 8 developed zinc oxide quantum dots (ZnOQds) via a green method and applied them into anti‐counterfeiting paper, resulting in highly stable paper with broad‐spectrum antimicrobial properties. However, there are some challenges in this area, for example, the large‐scale fabrication of biodegradable coatings and the migration of the coating into the packaged food 9 .…”

Section: Introductionmentioning

confidence: 99%

Cellulose nanocrystal‐modified bio‐based aqueous polyurethane coating agent for kraft paper packaging

Chen,

Feng,

Han

et al. 2024

J of Applied Polymer Sci

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With the implementation of the “plastic restriction order” and the demand for sustainable society development, biodegradable coatings derived from biomass materials have garnered significant interest. This study presents the synthesis of a double‐salt bio‐based waterborne polyurethane (PLA‐WPU) by utilizing poly(lactic acid) polyol (PLA) and isophorone diisocyanate (IPDI) as the main raw materials, along with 2,2‐dihydroxymethylpropionic acid (DMPA) and sodium ethylenediamine ethanesulfonate (A‐95) as a hydrophilic chain extender. Synergistic reinforcement of PLA‐WPU using hydrophobically modified cellulose nanocrystals (M‐CNC) and polycarbonate diimide (PDCDA). At an M‐CNC content of 3% relative to the effective mass of PLA‐WPU, the tensile strength reached 36.12 MPa. After 8 days a lipase PBS solution, the degradation rate reached 54%. Excellent waterproof performance was observed, exhibiting a contact angle of 143.5°. When applied as a surface coating on kraft paper, the Cobb 60 value decreased from 74.0 to 28.6 g/m2, while increasing the tensile strength by 451.3%. Importantly, the kraft paper maintained excellent waterproofing, mechanical strength, and high barrier properties even after repeated folding, high and low‐temperature conditions, and exposure to varying pH solutions. It proved to be both degradable and recyclable, making it a promising alternative to liner paper or plastic membrane, especially in food packaging.

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Section: Introductionmentioning

confidence: 99%

Cellulose nanocrystal‐modified bio‐based aqueous polyurethane coating agent for kraft paper packaging

Chen,

Feng,

Han

et al. 2024

J of Applied Polymer Sci

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“…Such materials can be suitably developed by exploiting the synergistic effect deriving from the combination of components whose properties have already been investigated for specific applications but which provide an additional dimension to their properties by becoming part of the hybrid compound [ 9 , 10 ]. Through this synergy of properties, it is possible to create multifunctional materials that can offer new solutions that fully meet the requirements of a targeted application [ 11 , 12 , 13 , 14 ]. These materials have exhibited dramatic variations in properties ranging from impressive improvements in mechanical properties to excellent electrical properties [ 15 , 16 ] with profound implications in structure–property relationships at the nanoscale [ 17 ], leading to a growing interest in the area of nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Properties of Polyhedral Oligomeric Silsesquioxanes (POSS)-Based Epoxy Nanocomposites

et al. 2023

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In this study, a tetrafunctional epoxy resin was loaded with 5 wt% of three different types of polyhedral oligomeric silsesquioxane (POSS) compounds, namely, DodecaPhenyl POSS (DPHPOSS), Epoxycyclohexyl POSS (ECPOSS), Glycidyl POSS (GPOSS), and 0.5 wt% of multi-walled carbon nanotubes (CNTs) in order to formulate multifunctional structural nanocomposites tailored for aeronautic and aerospace applications. This work aims to demonstrate how the skillful combination of desired properties, such as good electrical, flame-retardant, mechanical, and thermal properties, is obtainable thanks to the advantages connected with nanoscale incorporations of nanosized CNTs with POSS. The special hydrogen bonding-based intermolecular interactions between the nanofillers have proved to be strategic in imparting multifunctionality to the nanohybrids. All multifunctional formulations are characterized by a Tg centered at values close to 260 °C, fully satisfying structural requirements. Infrared spectroscopy and thermal analysis confirm the presence of a cross-linked structure characterized by a high curing degree of up to 94% and high thermal stability. Tunneling atomic force microscopy (TUNA) allows to detect the map of the electrical pathways at the nanoscale of the multifunctional samples, highlighting a good dispersion of the carbon nanotubes within the epoxy resin. The combined action of POSS with CNTs has allowed to obtain the highest values of self-healing efficiency if compared to those measured for samples containing only POSS in the absence of CNTs.

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Burkholderia sp. EIKU21 mediated synthesis of biogenic ZnO nanoparticle–based pigment for development of antibacterial cotton fabric through nanocoating

Roy,

Basak,

Mainak

et al. 2024

Biomass Conv. Bioref.

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Sustainable multifunctional zinc oxide quantum dots-aided double-layers security paper sheets

Cited by 7 publications

References 42 publications

Cellulose nanocrystal‐modified bio‐based aqueous polyurethane coating agent for kraft paper packaging

Cellulose nanocrystal‐modified bio‐based aqueous polyurethane coating agent for kraft paper packaging

Multifunctional Properties of Polyhedral Oligomeric Silsesquioxanes (POSS)-Based Epoxy Nanocomposites

Burkholderia sp. EIKU21 mediated synthesis of biogenic ZnO nanoparticle–based pigment for development of antibacterial cotton fabric through nanocoating

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