Preparation of Bio-Based Foams with a Uniform Pore Structure by Nanocellulose/Nisin/Waterborne-Polyurethane-Stabilized Pickering Emulsion

Article Chemistry, Physical

Recent advances in superhydrophobic polyurethane: preparations and applications

Hui Zhao et al.

Summary: This review presents the recent preparation methods for superhydrophobic polyurethane (SHPU) and discusses its potential applications in various fields.

ADVANCES IN COLLOID AND INTERFACE SCIENCE (2022)

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Article Biochemistry & Molecular Biology

Fabrication and characterization of Pickering high internal phase emulsions stabilized by debranched starch-capric acid complex nanoparticles

Yuhan Jia et al.

Summary: This study fabricated high internal phase emulsions (HIPEs) stabilized by debranched starch-capric acid (DBS-CA) complex nanoparticles and evaluated their performance. The DBS-CA nanoparticles displayed enhanced hydrophobicity compared to native starch, and could stabilize HIPEs with high oil volume fraction. The HIPEs showed good storage stability and mechanical strength within pH range from 3 to 11, especially under alkaline conditions.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2022)

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Article Chemistry, Physical

pH-Responsive Pickering high internal phase emulsions stabilized by Waterborne polyurethane

Jianhui Wu et al.

Summary: Waterborne polyurethane (WPU) nanoparticles were used to prepare high internal phase emulsions (HIPEs) with tailored morphology and excellent pH-responsiveness. The WPU-stabilized emulsions exhibited high stability, shear sensitivity, and excellent thixotropic recovery. They showed potential applications in oil transportation and recovery, emulsion polymerization, and heterogeneous catalysis.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Microstructure and viscoelastic behavior of waterborne polyurethane/cellulose nanofiber nanocomposite

Hui Zhao et al.

Summary: This study aimed to improve the mechanical properties of waterborne polyurethane (WPU) by incorporating modified cellulose nanofiber (m-CNF). The results showed that the introduction of m-CNF significantly increased the tensile strength and improved the viscosity and storage modulus of the nanocomposites. Moreover, m-CNF enhanced the thermal stability and creep resistance of WPU.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY (2022)

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Article Polymer Science

CO2-based fabrication of biobased and biodegradable poly (3-hydroxybutyrate-co-3-hydroxyvalerate)/graphene nanoplates nanocomposite foams: Toward EMI shielding application

Jingyun Luo et al.

Summary: This study successfully developed an eco-friendly polymer foam with outstanding electromagnetic interference (EMI) property by incorporating graphene nanoplates (GNPs). The addition of GNPs improved the electrical properties of the foam and achieved adjustable EMI shielding effectiveness.

POLYMER (2022)

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Article Chemistry, Physical

Beyond particle stabilization of emulsions and foams: Proteins in liquid-liquid and liquid-gas interfaces

Fuchao Zhan et al.

Summary: This article discusses the use of solid particles in stabilizing emulsions and foams, highlighting the advantages of particle-stabilization over surfactant stabilization. It explains the internal mechanism and principle of particle-stabilized interfaces, as well as the important role of proteins in the interface. The article also proposes a new concept of edible capillary foam.

ADVANCES IN COLLOID AND INTERFACE SCIENCE (2022)

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Article Engineering, Environmental

Preparation and Properties of Self-healing Triboelectric Nanogenerator Based on Waterborne Polyurethane Containing Diels-Alder Bonds

Bing-Xu Cheng et al.

Summary: A waterborne polyurethane (WPU) with excellent self-healing and recyclable properties was successfully prepared by introducing Diels-Alder (DA) reaction groups into it. The WPU-DA film showed high self-healing efficiency and could be used to prepare a triboelectric nanogenerator (TENG). The electrical output properties of the TENG could be restored to more than 90% of the original values after damage-healing.

JOURNAL OF POLYMERS AND THE ENVIRONMENT (2022)

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Article Biophysics

Thermal insulation and antibacterial foam templated from bagasse nanocellulose/nisin complex stabilized Pickering emulsion

Peng Lu et al.

Summary: This study reports a novel foam packaging material with good thermal insulation and antibacterial properties, which was templated from bagasse nanocellulose complex particle-stabilised acrylate epoxy soybean oil Pickering emulsions. The foam exhibited increased porosity, decreased thermal conductivity, and good antibacterial activity.

COLLOIDS AND SURFACES B-BIOINTERFACES (2022)

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Review Chemistry, Multidisciplinary

Thermally Insulating Nanocellulose-Based Materials

Varvara Apostolopoulou-Kalkavoura et al.

Summary: Thermally insulating materials based on renewable nanomaterials like nanocellulose have the potential to reduce energy consumption and environmental impact in the building sector. Recent advances in superinsulating cellulose nanomaterial-based aerogels and foams have shown significantly better heat transport properties than traditional materials, leading to increased research activity in this area.

ADVANCED MATERIALS (2021)

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Article Materials Science, Multidisciplinary

An antimicrobial bio-based polymer foam from ZnO-stabilised pickering emulsion templated polymerisation

Xuwang Tian et al.

Summary: The study reports the preparation of an antibacterial foam through Pickering emulsion templating, which shows strong stability and antimicrobial activity. This provides a convenient method for preparing innovative bio-based materials.

JOURNAL OF MATERIALS SCIENCE (2021)

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Review Food Science & Technology

Recent Advances in Food Emulsions and Engineering Foodstuffs Using Plant-Based Nanocelluloses

Long Bai et al.

Summary: This article reviews the application of nanocelluloses, such as cellulose nanofibrils and cellulose nanocrystals, as functional ingredients in foods. These ingredients can alter the physicochemical, sensory, and nutritional properties of foods and create novel structures. By extending their functionality through chemical modification or combining with other natural food ingredients, nanocelluloses can be used to create stimuli-responsive and active functional biomaterials for various food applications.

ANNUAL REVIEW OF FOOD SCIENCE AND TECHNOLOGY, VOL 12, 2021 (2021)

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Review Chemistry, Multidisciplinary

Recent Developments in Nanocellulose-Based Aerogels in Thermal Applications: A Review

Sandeep Ahankari et al.

Summary: Naturally derived nanocellulose (NC) is a renewable and biodegradable nanomaterial with high strength, low density, and tunable surface chemistry, allowing controlled interactions with other polymers and nanomaterials. NC aerogels have gained attention due to environmental concerns, and recent developments have focused on their applications in thermal fields such as electronics, apparel, and smart building materials with properties categorized as thermally insulated, thermally conductive, and flame-retardant.

ACS NANO (2021)

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Article Chemistry, Applied

Cellulose nanofibrils-based hybrid foam generated from Pickering emulsion toward high-performance microwave absorption

Yingying He et al.

Summary: The study developed foam-based microwave absorbers with excellent photo-thermal conversion and thermal insulation properties using the oil-in-water Pickering emulsion gelation approach combined with freeze-drying. The hybrid foam consisted of cellulose nanofibrils and polylactic acid as three-dimensional skeleton, with carbon nanotubes and Fe3O4 nanoparticles homogeneously incorporated to form a conductive network with hetero-interfaces. The foam exhibited an optimal reflection loss value of -65.14 dB and high photo-thermal conversion performance, with superior thermal insulation compared to commercial foams. This research may provide a promising approach for developing ultralight and high-performance microwave absorbers with multifunctional applications.

CARBOHYDRATE POLYMERS (2021)

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Review Chemistry, Applied

Nanocellulose in food packaging: A review

Sandeep S. Ahankari et al.

Summary: Research on using NC as a sustainable food packaging material has accelerated, with a focus on its application in nanocomposites, future directions, and challenges in commercial exploitation.

CARBOHYDRATE POLYMERS (2021)

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Article Polymer Science

Influence of a Non-Ionic Surfactant in the Microstructure and Rheology of a Pickering Emulsion Stabilized by Cellulose Nanofibrils

Jorge Velasquez-Cock et al.

Summary: This study explores the potential application of cellulose nanofibrils as a Pickering emulsifier in the food industry. The addition of a non-ionic food-grade surfactant, polysorbate 80, results in smaller droplet diameter and decreased network stiffness according to rheology analysis. The presence of surfactant affects the stability and physical properties of the emulsion containing coconut oil.

POLYMERS (2021)

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Article Biochemistry & Molecular Biology

Bottom-Up Assembly of Nanocellulose Microgels as Stabilizer for Pickering Foam Forming

Yang Yang et al.

Summary: Microgels assembled from bio-based nanomaterials, such as nanocellulose, showed promising foaming properties and stability as a soft stabilizer in Pickering systems. The unique dendritic microstructure of the microgels prepared at specific nisin concentrations contributed to their improved foaming ability and foam stability, preventing coalescence of bubbles. This novel nanocellulose microgel has the potential to expand the application of nanocellulose in functional interfacial design of Pickering foams.

BIOMACROMOLECULES (2021)

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Article Chemistry, Applied