Rigid Film Research Articles

6,6′-{[Ethane-1,2-diylbis(azaneylylidene)]bis(methaneylylidene)}bis[2-(hexyloxy)phenolato] Nickel(II)

Polymeric nickel complexes of salen ligands meet a wide range of applications in catalysis and electrochemistry. Because these polymers usually form very rigid films, the introduction of the conformationally flexible fragments in the corresponding monomers favors the amorphization and, thus, the mass transport. Herein we report a preparation of the hexyloxy-substituted monomeric NiSalen complex by the direct alkylation of the hydroxy-substituted complex. The resulting product was characterized by the 1H and 13C nuclear magnetic resonance (NMR), ESI-high resolution mass spectrometry (ESI-HRMS, and Fourier-transform infrared spectroscopy (FTIR). The crystal structure of the product was examined by an XRD, indicating the formation of the solvate with dichloromethane. The obtained product was found to be highly soluble in non-polar solvents, in contrast to typical NiSalens.

Chemically recyclable glycerol-biobased polyether thermosets

Glycerol is a chemical byproduct of biodiesel synthesis that has become an important raw material for use in the food, personal care and pharmaceutical industries. However, even with these applications, there is an imbalance between the growing production of glycerol and the demand for it. In this work we propose the use of glycerol and diglycerol as raw materials for the synthesis of fully recyclable aliphatic polyether thermosets. Fully biobased polyether thermosets are prepared by the acid-catalyzed bulk self-condensation of glycerol and diglycerol with different ratios of 1,6-hexanediol at 170 °C using an acid-base non-eutectic mixture organocatalyst (NEMO). The thermosets are characterized using solid-state 13C NMR, FTIR, DMA and DSC. The mechanical properties of the thermosets can be varied by adjusting the glycerol to diol ratio, leading to rigid or flexible thermoset films with varying Young’s modulus and elongation at break. Finally, we also demonstrate that the glycerol and diglycerol based thermosets can be depolymerized back to the initial monomers by hydrolysis under acidic conditions and subsequently repolymerized to obtain chemically recyclable biobased thermosets.

A versatile logic detector and fluorescent film based on Eu-based MOF for swift detection of formaldehyde in solutions and gas phase

Due to the huge threat of formaldehyde (FA) on human beings, the development of chemical sensors for swift detection of FA in solutions and gas phase is highly anticipated. In this paper, a versatile logic detector and a portable fluorescent film based on small-scaled Eu-based MOF were applied successfully to detect FA in solutions and gas phase, respectively. For FA in aqueous solution, the design of logic detector will efficiently identify FA in different concentration ranges: when the FA concentration are 0–500 ppb, 500–1000 ppb and >1000 ppb, the output signals of logic detector are the concentration level of FA ("L", "H" and "VH"), and accompanied by red, purple and blue signal lamps to remind, respectively. For FA in the air, the color of rigid film sensor will gradually change from red to blue with the increase of FA under UV lamp, and the detection limit of gaseous FA is 11.8 ppb. Through the preparation of logic devices and fluorescent films, Eu-based MOF realized swift detection of FA in solutions and gas phase, which will be very helpful to improve the human response level to FA from different emission sources.

High-speed droplet impingement on dry and wetted substrates

High-speed droplet impact is of great interest to power generation and aerospace industries due to the accrued cost of maintenance in steam and gas turbines. The repetitive impacts of liquid droplets onto rotor blades, at high relative velocities, result in blade erosion, which is known as liquid impingement erosion (LIE). Experimental and analytical studies in this field are limited due to the complexity of the droplet impact at such conditions. Hence, numerical analysis is a very powerful and affordable tool to investigate the LIE phenomenon. In this regard, it is crucial to understand the hydrodynamics of the impact in order to identify the consequent solid response before addressing the LIE problem. The numerical study of the droplet impingement provides the transient pressure history generated in the liquid. Determining the transient behavior of the substrate, in response to the pressure force exerted due to the droplet impact, would facilitate engineering new types of surface coatings that are more resistant to LIE. To that end, quantifying the impact pressure of compressible liquid droplets impinged at very high velocities, up to 500 m/s, on rigid solid substrates and liquid films is the main objective of the present work. A wide range of scenarios that commonly arise in the LIE problem are considered, i.e., droplet sizes between 200 µm and 1000 μm, impact velocities ranging from 100 m/s to 500 m/s, and liquid film thicknesses of 0 µm–200 μm. The maximum pressure exerted on the solid surface due to the droplet impact is calculated for both dry and wetted substrates. The results obtained from compressible fluid modeling are compared to those of other numerical studies and analytical correlations, available in the open literature. New correlations are developed for maximum impact pressure on rigid solids and liquid films that can be used to characterize the solid stress and estimate the lifetime of the material by carrying out the fatigue analysis.

Lead-free (K,Na)NbO3 Thick Films for Flexible Non-volatile Memory Applications

We report the sol-gel fabrication and electrical characterization of flexible (K,Na)NbO3 (KNN) thick films. Muscovite mica allows the growth of high-quality polycrystalline KNN thick films with flexible functionality. Because of the trade-off between increase of grain-size and volatilization of alkaline ions, the electrical polarization is optimized at certain temperature of 720 °C. The remnant and saturation polarization of flexible KNN films were recorded to Pr = 10.3 μC/cm2 and Ps = 23.3 μC/cm2, respectively, which are quite close to those of rigid films with the same chemical compositions. The KNN thick films are bendable even up to bending radius of R = 3.1 mm, and the Pr and Ps at bending states are almost the same as compared to those at unbending state. Even in the convex and concave bending, the KNN thick films show excellent non-volatile memory characteristics. The Pr is almost thesameevenafter the108 times of switching and the 104 sec of retention.

Binder-free TiO2 hydrophilic film covalently coated by microwave treatment

A binder-free attachment method for TiO2 on a substrate has been sought to retain high active photocatalysis. Here, we report a binder-free covalent coating of phase-selectively disordered TiO2 on a hydroxylated silicon oxide (SiO2) substrate through rapid microwave treatment. We found that Ti–O–Si and Ti–O–Ti bonds were formed through a condensation reaction between the hydroxyl groups of the disordered TiO2 and Si substrate, and the disordered TiO2 nanoparticles themselves, respectively. This covalent coating approach can steadily hold the active photocatalytic materials on the substrates and provide long-term stability. The binder-free disordered TiO2 coating film can have a thickness (above 38 μm) with high surface integrity with a strong adhesion force (15.2 N) against the SiO2 substrate, which leads to the production of a rigid and stable TiO2 film. This microwave treated TiO2 coating film showed significant volatile organic compounds degradation abilities under visible light irradiation. The microwave coated selectively reduced TiO2 realized around 75% acetaldehyde degradation within 12 h and almost 90% toluene degradation after 9 h, also retains stable photodegradation performance during the cycling test. Thus, the microwave coating approach allowed the preparation of the binder-free TiO2 film as a scalable and cost-effective method to manufacture the TiO2 film that shows an excellent coating quality and strengthens the application as a photocatalyst under severe conditions.

Effect of surfactant on elongated bubbles in capillary tubes at high Reynolds number

The effect of surfactants on the tail and film dynamics of elongated gas bubbles propagating through circular capillary tubes is investigated by means of an extensive three-dimensional numerical study using a hybrid front-tracking/level-set method. The focus is on the visco-inertial regime, which occurs when the Reynolds number of the flow is much larger than unity. Under these conditions, 'clean' bubbles exhibit interface undulations in the proximity of the tail [25], with an amplitude that increases with the Reynolds number. We perform a systematic analysis of the impact of a wide range of surfactant properties, including elasticity, bulk surfactant concentration, solubility, and diffusivity, on the bubble and flow dynamics in the presence of inertial effects. The results show that the introduction of surfactants is effective in suppressing the tail undulations as they tend to accumulate near the bubble tail. Here, large Marangoni stresses are generated, which lead to a local 'rigidification' of the bubble. This effect becomes more pronounced for larger surfactant elasticities and adsorption depths. At reduced surfactant solubility, a thicker rigid film region forms at the bubble rear, where a Couette film flow is established, while undulations still appear at the trailing edge of the downstream 'clean' film region. In such conditions, the bubble length becomes an influential parameter, with short bubbles becoming completely rigid.

Making Advanced Electrogravimetry as an Affordable Analytical Tool for Battery Interface Characterization.

Numerous sophisticated diagnostic techniques have been designed to monitor electrode-electrolyte interfaces that mainly govern the lifetime and reliability of batteries. Among them is the electrochemical quartz crystal microbalance (EQCM) that offers valuable insights of the interfaces once the required conditions of the deposited film in terms of viscoelastic and hydrodynamic properties are fulfilled. Herein, we propose a friendly protocol that includes the elaboration of a homogeneous deposit by spray coating followed by QCM measurements at multiharmonic frequencies to ensure the film flatness and rigidity for collecting meaningful data. Moreover, for easiness of the measurements, we report the design of a versatile and airtight EQCM cell setup that can be used either with aqueous or non-aqueous electrolytes. We also present, using a model battery material, LiFePO4, how dual frequency and motional resistance monitoring during electrochemical cycling can be used as a well-suitable indicator for achieving reliable and reproducible electrogravimetric measurements. We demonstrate through this study the essential role of the solvent assisting lithium-ion insertion at the LiFePO4 interface with a major outcome of solvent-dependent interfacial behavior. Namely, in aqueous media, we prove a near-surface desolvation of lithium ions from their water solvation shell as compared with organic molecules. This spatial dissimilarity leads to a smoother Li-ion transport across the LFP-H2O interface, hence accounting for the difference in rate capability of LFP in the respective electrolytes. Overall, we hope our analytical insights on interfacial mechanisms will help in gaining a wider acceptance of EQCM-based methods from the battery community.

Design and Implementation of Robot Skin Using Highly Sensitive Sponge Sensor

Robot skin, as a key component to collect tactile information, plays an important role in human-robot interaction (HRI). Conventional robot skin is mainly made of rigid components and bendable films, which cannot provide a fully soft physical interface in HRI. In addition, the sensitivity of robot skin is still to be enhanced so that robot could perceive touch behavior more precisely from a human. Here, a novel robot skin with features of high sensitivity and softness is designed in this article. The proposed robot skin is composed of a matrix of carbon black-polyurethane sponge sensor units through a foaming process. The sensitivity of the sensor is further enhanced by optimizing its geometric structure, based on the finite element method and physical experimental tests. The excellent cycling stability and transient responsiveness of the sponge sensor embedded into the robot skin endow host robots with an accurate long-term perception of both transient and quasi-static force. Finally, the validation of the robot skin is carried out by installing it on the back of a collaborative robot to perceive four touch modalities, illustrating great application prospects in affective HRI.

Ovalbumin-stabilized concentrated emulsion gels

In this paper, ovalbumin is used as the sole emulsifier to produce stable concentrated oil (oil phase = 70 wt%) in water emulsion near ovalbumin isoelectric point. The emulsions display excellent stability against flocculation and coalescence at ovalbumin concentration ranging from 0.6 to 1 wt%. The oil–water interfacial tension decreases in the presence of ovalbumin, indicating the adsorption of ovalbumin at the interface. Although the increase in ovalbumin from 0.1 to 1 wt% does not significantly influence the equilibrium interfacial tension, the surface mean diameter of the emulsion droplets decreases as the concentration increases from 0.1 to 1 wt%. These emulsions exhibit solid gel-like behaviour. At low ovalbumin concentrations (0.1–0.4 wt%), emulsions undergo a phase separation after 24 h. We hypothesize that emulsions with higher ovalbumin content contain oil droplets with multilayer adsorbed films. The steric stabilization due to adsorbed multilayers and the ability of rigid interfacial films to withstand external droplet pressures upon contact contributes to emulsion stability.

Uniformization of Mass Sensitivity Distribution of Silver Electrode QCM.

Quartz crystal microbalance (QCM) is a highly sensitive mass sensor and has been widely used in many fields. However, the nonuniform distribution of mass sensitivity will lead to poor reproducibility of QCM, which is not conducive to the application of QCM in some fields. Considering the effect of electrode shape, size, and material on mass sensitivity distribution, we found that for an AT-cut QCM with a fundamental frequency of 10 MHz, when the inner and outer diameters of silver ring electrode and the electrode loading factor are 2 and 5 mm and 0.0033, respectively, an approximately uniform mass sensitivity distribution can be obtained. The plating experiment in which rigid silver films were plated on the surface of electrode verified the uniformity. The uniform mass sensitivity distribution will make the application of QCM more convenient; the reproducibility can also be improved. This design of QCM will enrich QCM products and facilitate the application of QCM in various fields.

Preparation and Drug Release Mechanism of Time Controlled Explosive Pulsatile Tablets with Ethylcellulose Coating

Core tip: The development of pharmacology in the decade revealed the biological rhythm of the occurrence and development of certain diseases, usually the circadian rhythm. Therefore, chronopharmacological drug delivery is of great significance in the prevention and treatment of diseases having onset rhythm inconvenient to take drug. An easy-to-prepared, time-controlled explosive metoprolol tartaric pulsatile tablet was developed in order to provide patients with timed therapy of effective blood drug concentration at the optimal time. The formulation and process were optimized using single factor experiments and orthogonal experiments. In addition, the swelling and water absorption rate of tablet and the mechanical properties of the coating film were measured to further reveal its release mechanism. The results showed that the strong tensile strength of coating film and the weak flexibility of EC film resulted in a shell-type exploding rupture of the coating film followed by the pulsatile fast release of drug when the swelling force of core tablet caused by water uptake was high enough. Both the swelling capacity of core tablets and the thickness of coating film together controlled the lag time of drug release. The prepared time-controlled explosive pulsatile tablets with ethylcellulose coating thereafter are expected to be used for the delivery of therapeutic agents for chronotherapy by adjusting the lag time of drug release to match the different high attack rhythm of the exact diseases. Abstract: Background The time rhythm of human body is associated with the occurrence and development of many diseases, and it also affects the efficacy and pharmacokinetic characteristics of the corresponding therapeutic drugs. Therefore, the chronopharmacological drug delivery system has potential applications. Aim In this work, it is proposed to develop a kind of pulsatile release tablet of simple structure and preparing process, thus to provide an alternative drug delivery system for therapeutic agents used in treatment of diseases of typical onset biorhythm at period inconvenient to take drug. Methods Metoprolol tartrate (MT), a drug widely used clinically to treat cardiovascular diseases was selected as a model drug for developing pulsatile tablets of time-controlled explosive system (TES). The MT pulsatile tablets were ethyl cellulose (EC) coating tablets produced by pan coating process, and the core tablets were prepared by direct compression. The formulation and process was optimized by single factor test and orthogonal design. Also, the pulsatile release mechanism of the tablets was discussed through investigating the water absorption and swelling capacity of tablets as well as the mechanical properties of EC free film. Results A kind of pulsatile tablets of MT were developed with a drug release lag time around 7 h and a fast release of drug after lag time. When the swelling force of core tablet caused by water uptake was high enough over the tensile strength of EC coating film, the MT pulsatile tablets demonstrated a shell-type exploding rupture due to the great rigidity and weak flexibility of EC film, and then a fast pulsatile release of drug was observed. Both the swelling capacity of core tablet and the thickness of coating film together controlled the lag time of drug release. The lag time showed a good linear relationship with the thickness of coating film (r = 0.9984, P < 0.01). The sort and amount of fillers and disintegrants dominated the release behaviour after lag time. Conclusion The developed MT pulsatile tablets can exert a timely release of drug before peak onset period of hypertension and angina pectoris early in the morning after drug taking around 22:00 P.M the night before. The good linear relationship between lag time and coating thickness enabled the pulsatile tablets to be used for delivery of other therapeutic agents of similar chronotherapy demand by adjusting the coating thickness to achieve the appropriate lag time of drug release to match the different high attack rhythm of the exact diseases.

Microscale Interactions of Surfactant and Polymer Chemicals at Crude Oil/Water Interface for Enhanced Oil Recovery

Summary The conventional experimental techniques used for performance evaluation of enhanced oil recovery (EOR) chemicals, such as polymers and surfactants, have been mostly limited to bulk viscosity, phase behavior/interfacial tension (IFT), and thermal stability measurements. Furthermore, fundamental studies exploring the different microscale interactions instigated by the EOR chemicals at the crude oil/water interface are scanty. The objective of this experimental study is to fill this existing knowledge gap and deliver an important understanding on underlying interfacial sciences and their potential implications for oil recovery in chemical EOR. Different microscale interactions of EOR chemicals, at crude oil/water interface, were studied by using a suite of experimental techniques, including an interfacial shear rheometer, Langmuir trough, and coalescence time measurement apparatus at both ambient (23°C) and elevated (70°C) temperatures. The reservoir crude oil and high-salinity injection water (57,000 ppm total dissolved solids) were used. Two chemicals, an amphoteric surfactant (at 1,000 ppm) and a sulfonated polyacrylamide polymer (at 500 and 700 ppm) were chosen because they are tolerant to high-salinity and high-temperature conditions. Interfacial viscous and elastic moduli (viscoelasticity), interface pressures, interface compression energies, and coalescence time between crude oil droplets are the major experimental data measured. Interfacial shear rheology results showed that surfactant favorably reduced the viscoelasticity of crude oil/water interface by decreasing the elastic and viscous modulus and increasing the phase angle to soften the interfacial film. Polymers in brine either alone or together with surfactant increased the viscous and elastic modulus and decreased the phase angle at the oil/water interface, thereby contributing to interfacial film rigidity. Interfacial pressures with polymers remained almost in the same order of magnitude as the high-salinity brine. In contrast, a significant reduction in interfacial pressures with surfactant was observed. The interface compression energies indicated the same trend and were reduced by approximately two orders of magnitude when surfactant was added to the brine. The surfactant was also able to retain similar interface behavior under compression even in the presence of polymers. The coalescence times between crude oil droplets were increased by polymers, while they were substantially decreased by the surfactant. These consistent findings from different experimental techniques demonstrated the adverse interactions of polymers at the crude oil/water interface to result in more rigid films, while confirming the high efficiency of the surfactant to soften the interfacial film, promote the oil droplets coalescence, and mobilize substantial amounts of residual oil in chemical EOR. This experimental study, for the first time, characterized the microscale interactions of surfactant-polymer chemicals at the crude oil/water interface. The applicability of several interfacial experimental techniques has been demonstrated to successfully understand underlying interfacial sciences and oil mobilization mechanisms in chemical EOR. These techniques and methods can provide potential means to efficiently screen and optimize EOR chemical formulations for better oil recovery in both sandstone and carbonate reservoirs.

BNNS/PVA bilayer composite film with multiple-improved properties by the synergistic actions of cellulose nanofibrils and lignin nanoparticles

To avoid complex and toxic chemical cross-linking reaction, cellulose nanofibrils (CNF) was used to enhance the performance of hexagonal boron nitride nanosheet (BNNS)/polyvinyl alcohol (PVA)/lignin nanoparticle (LNP) composite film. The results showed that CNF and LNP had synergistic actions on enhancing the tensile strength, thermal conductivity and stability of the film. The 4 wt% CNF-reinforced composites exhibited the higher through-plane thermal conductivity (up to 1.76 W/mK) than that without CNF (1.44 W/mK), revealing an increase of 22.2% at the same BNNS loading. Meanwhile, the maximum decomposition rate (Rmax) was roughly 0.6%/oC, a decrease of 14.3% compared with the composite film without LNP. Furthermore, the rigidity of composite film was strengthened by incorporating CNF and LNP, the tensile strength of the composite film showed the highest value of 35.0 MPa with 4 wt% CNF and 0.01 g LNP, while this of BNNS/PVA/LNP film and BNNS/PVA/CNF film was only 30.66 MPa and 30.62 MPa, respectively. The green and flexible fabrication approaches will be helpful to build up eco-friendly BN composites with wide applications in thermal management of electronics.

Splitting a terahertz surface plasmon polariton beam using Kapton film

It has been experimentally shown that a rigid polyimide Kapton film of submillimeter thickness is sufficiently transparent in the frequency range of 1.2–3 THz and can be used for splitting surface plasmon polaritons (SPPs) propagating along a flat conducting surface. The transmittance T and reflectance R measured for SPPs excited by a free-electron laser radiation ( λ = 130 µ m ) in “gold–ZnS layer–air” flat structures are in good agreement with the results of numerical simulations obtained using the rigorous coupled-wave analysis technique. Transmittance of the SPPs decreases slightly when the layer gets thicker. To minimize the SPP radiative losses emerging due to diffraction of the SPPs on the impedance discontinuity, the Kapton film should be placed normal to the guiding surface and brought in good contact with it (the gap must be less than λ / 2 ). The performed experiments clearly demonstrated Kapton films to be very promising for SPP beam splitting in large-scale terahertz SPP devices.

Development and characterization of biopolymeric films of galactomannans recovered from spent coffee grounds

The search for new renewable sources for the development of biopolymer packaging has been growing. Among these are galactomannans due to their biodegradability, high availability, and biocompatibility. The objective of this work was to develop biopolymeric film comprised mostly of galactomannans recovered from spent coffee grounds through alkaline and enzymatic treatment. Through the quantification of monosaccharides, it was possible to verify the significant removal of cellulose, maintaining the mannose and galactose monosaccharides. The film was produced by the phase inversion method and characterized in terms of chemical composition, morphology, crystallinity, water vapour permeability and mechanical properties. The results showed that cellulose plays an important role in mechanical properties (tensile strength and deformation), and the water vapour permeability of the film. However, with the partial removal of cellulose, it was possible to obtain a film with different properties since galactomannan molecules form stronger bonds, and consequently generating a more rigid film.

The emergence of local wrinkling or global buckling in thin freestanding bilayer films

Periodic wrinkling of a rigid capping layer on a deformable substrate provides a useful method for templating surface topography for a variety of novel applications. Many experiments have studied wrinkle formation during the compression of a rigid film on a relatively soft pre-strained elastic substrate, and most have focused on the regime where the substrate thickness can be considered semi-infinite relative to that of the film. As the relative thickness of the substrate is decreased, the bending stiffness of the film dominates, causing the bilayer to transition to either local wrinkling or a global buckling instability. In this work optical microscopy was used to study the critical parameters that determine the emergence of local wrinkling or global buckling of freestanding bilayer films consisting of a thin rigid polymer capping layer on a pre-strained elastomeric substrate. The thickness ratio of the film and substrate as well as the pre-strain were controlled and used to create a buckling phase diagram which describes the behaviour of the system as the ratio of the thickness of the substrate is decreased. A simple force balance model was developed to understand the thickness and strain dependences of the wrinkling and buckling modes, with excellent quantitative agreement being obtained with experiments using only independently measured material parameters.

Films made from plasma-modified corn starch: Chemical, mechanical and barrier properties

In this study, the chemical, mechanical and barrier properties of films made from plasma-modified corn starch (MSF) were evaluated as a function of the amylose content (30, 50 and 70 %). SEM analysis revealed the presence of remnant starch granules (RSG) in all films, which promoted the ordering of helices as suggested by the FTIR results. Moreover, XPS analysis was used to identify the oxidation mechanism in all MSF as the atomic proportion of hydroxyl, carbonyl and carboxyl groups changed. Also, the increase of C-C proportions suggested crosslinking in MSF70. TGA analysis indicated low interaction between starch and the plasticizer as the tensile strength and elongation at break diminished in MSF50 and MSF70 due to the low plasticizing effect of glycerol, the oxidation phenomena and the depolymerization of starch chains. However, the crosslinking of MSF70 showed characteristics of rigid films with good hydrophobic performance.

Thermoplastic Starch (TPS) Films Added with Mucilage from Opuntia Ficus Indica: Mechanical, Microstructural and Thermal Characterization.

Opuntia cladodes are a typical vegetable waste, from which mucilage in gel form can be extracted. This work proposes blending it with a self-produced thermoplastic starch (TPS), originating from potato starch with a high content in glycerol (ca. 30%). Three methods were compared for extraction, bare maceration (MA), mechanical blending (ME) and mechanical blending following maceration (MPM) to produce films with an approximate thickness of 150 μm. For the comparison, tensile testing, differential scanning calorimetry and scanning electron microscopy were used. The MPM process proved the most effective, not only for extraction yielding, but also to obtain a larger deformation of the samples with respect to the one allowed by the pure TPS films. A considerable plasticization effect was observed. Despite this, the mechanical performance is still not completely satisfactory, and the expected effect of the calcium and magnesium salts contained in the mucilage to improve the rigidity of the TPS film was not really revealed. Prospected improvements would concern the fabrication process and the investigation of other possible loading modes and sample geometries.

Physical, Barrier, Mechanical, and Biodegradability Properties of Modified Starch Films with Nut By-Products Extracts.

Starch-based films with phenolic extracts could replace the use of petroleum-based plastics. In this study, octenyl succinate starch (OSS) films with pecan nutshell extract (PSE) or hazelnut skin extract (HSE) were prepared. The water resistance, as well as the optical, physical, mechanical, and biodegradable properties of these films, were investigated. The PSE and HSE improved the water resistance (decreasing the solubility to 17% and increasing the contact angle to 96.80°) and UV-light barrier properties of the films. For PSE and HSE, as their concentrations increased, the film rigidity decreased since these extracts acted as plasticizers. Micrographs obtained by scanning electron microscopy (SEM) depicted a homogeneous surface as a result of extracts dispersion through the polymeric matrix and the interactions between the phenolic compounds (PC) of the extracts and the OSS. The phenolic extracts from nut by-products and octenyl succinic anhydride (OSA) starch could be used to develop films to replace the conventional plastics.