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Papers
61,005 resultsShowing papers similar to Conversion of Cellulose and Lignin Residues into Transparent UV-Blocking Composite Films
ClearBiodegradable, Flexible and Ultraviolet Blocking Nanocellulose Composite Film Incorporated with Lignin Nanoparticles
Composite films combining cellulose nanofibrils with lignin nanoparticles from two isolation methods were fabricated, producing biodegradable, flexible materials with strong UV-blocking performance suitable as plastic film replacements. The lignin-CNF composites achieved UV absorbance through the natural chromophore properties of lignin without requiring synthetic UV additives.
Hydrogen-bonded lignin-acrylic copolymer/WPU composites with Integrated UV shielding, antioxidancy and degradability
Researchers synthesized a lignin-acrylic copolymer from rice straw waste and blended it with waterborne polyurethane to create a composite film with 43% higher tensile strength, near-total UV blocking, and dramatically improved antioxidant capacity, offering a biodegradable, microplastic-reducing alternative to conventional plastic films.
Functional surfaces, films, and coatings with lignin – a critical review
This review examines the use of lignin, the most abundant polyaromatic biopolymer, in functional coatings and films. Researchers highlight lignin's intrinsic properties including UV-blocking, oxygen scavenging, and antimicrobial capabilities, with applications ranging from food packaging to antifouling membranes as a potential replacement for fossil-based polymers.
Effect of silane modifiednano‐SiO2on the mechanical properties and compatibility ofPBAT/lignin composite films
This study developed biodegradable PBAT/lignin composite films reinforced with silane-modified silica nanoparticles, aiming to improve mechanical strength while maintaining UV-blocking properties useful for agricultural film applications. Developing high-performance biodegradable agricultural plastics is important for reducing the plastic mulch that is a major source of microplastic contamination in farmland soils.
Biodegradable UV-Protective Composite Film from Cellulosic Waste: Utilisation of Cotton Gin Motes as Biocomponent
Researchers developed biodegradable composite films by compounding cotton gin mote waste powder (up to 50% by weight) with polycaprolactone (PCL) and polyethylene glycol plasticizer, using a solvent-free melt extrusion process. The resulting films exhibited UV-shielding properties from lignin in the cotton waste, with 9.5 MPa yield strength and 442% elongation, offering a renewable alternative to non-biodegradable plastic films.
3D-Printed Polylactic Acid/Lignin Films with Great Mechanical Properties and Tunable Functionalities towards Superior UV-Shielding, Haze, and Antioxidant Properties
Researchers incorporated lignin into polylactic acid (PLA) to create 3D-printable composite filaments, finding that lignin addition improved mechanical properties and enabled tunable functionalities in the resulting films, expanding options for sustainable additive manufacturing materials.
Constructing robust and antioxidant polyurethane–lignin coatings with biodegradable properties for grass press paper films
This study developed polyurethane coatings incorporating lignin to create robust, antioxidant surface treatments with biodegradable characteristics, testing mechanical durability and antioxidant performance. The lignin-modified coatings showed improved oxidative stability while maintaining protective properties.
Green and Scalable Preparation of Colloidal Suspension of Lignin Nanoparticles and Its Application in Eco-friendly Sunscreen Formulations
Researchers developed a scalable, solvent-free method to produce lignin nanoparticles and demonstrated their use as a natural UV-absorbing ingredient in eco-friendly sunscreen formulations, offering a biodegradable alternative to synthetic UV filters.
Effect of the Incorporation of Lignin on Starch/PVA Blend Films Produced by Casting
Researchers produced and characterized starch/PVA blend films incorporating varying amounts of lignin (0%, 0.5%, 1%, and 2%) using a casting method, aiming to improve the mechanical and barrier properties of biodegradable packaging materials. The study identified optimal lignin concentrations that enhance film performance while maintaining biodegradability as an alternative to conventional polymeric materials.
Fabrication of Lignin/Pbat Biodegradable Plastics Films via Reactive Extrusion and Their Thermal, Mechanical and Water Absorption Properties
Researchers developed biodegradable films made from poly(butylene adipate-co-terephthalate) (PBAT) and lignin as a sustainable alternative to conventional polyethylene packaging films. Replacing fossil-fuel-based plastic films with biodegradable alternatives could reduce the microplastic pollution that results from conventional plastic film degradation in the environment.
A multifunctional biogenic films and coatings from synergistic aqueous dispersion of wood-derived suberin and cellulose nanofibers
Researchers developed multifunctional bio-based packaging films and coatings using suberin, an industrial byproduct, stabilized with amphiphilic cellulose nanofibers. The resulting materials demonstrated UV shielding and antimicrobial properties while serving as effective food packaging. The study presents a sustainable alternative to conventional plastic packaging that could help reduce microplastic pollution from packaging degradation.
Nano-Structured Lignin as Green Antioxidant and UV Shielding Ingredient for Sunscreen Applications
This review covered the use of lignin nanoparticles as green antioxidants and UV-shielding agents in sunscreen and antiaging cosmetics, highlighting the enhanced properties of nanoscale lignin derived from pulp and paper industry waste.
Preparation of Film Based on Polyvinyl Alcohol Modified by Alkaline Starch and Lignin Fiber
Researchers prepared a polyvinyl alcohol film modified with alkaline starch and lignin fiber (SPL film) from agricultural and forest waste sources through polycondensation under acidic conditions, characterizing the resulting material by SEM, FTIR, ESI-MS, and mechanical testing. The SPL film showed smooth surface morphology with good compatibility between the lignin fiber and the starch-PVA hybrid matrix.
Deep eutectic solvent-mediated extraction of lignin: A novel strategy for producing high-quality biopolymers in controlled-release mulching applications
Researchers developed a biodegradable mulch film made from lignin, chitosan, and polyvinyl alcohol that can also slowly release fertilizer to crops. The film matched the thermal insulation and water retention properties of conventional plastic mulch while breaking down naturally in soil. The study offers a promising alternative to plastic mulch films, which are a major source of microplastic contamination in agricultural soils.
All-biodegradable soy protein isolate/lignin composite cross-linked by oxidized sucrose as agricultural mulch films for green farming
Researchers developed an all-biodegradable mulch film made from soy protein, lignin, and oxidized sucrose as a green alternative to conventional plastic agricultural films. The film demonstrated improved tensile strength, UV-shielding capability, moisture retention, and controlled fertilizer release properties. Field tests showed higher cabbage seed germination rates compared to traditional polyethylene film, suggesting this bio-based material could reduce microplastic generation from agricultural practices.
Reassembly of wood to plastic- and paper-like films via ultra-mild dissolution in formic acid
Lignocellulosic biomass was converted into plastic- and paper-like films by dissolving wood in formic acid without ball milling or catalysts, then reassembling the formylated cell wall components by casting. The ultra-mild process offers a simpler route to renewable bio-based film materials from wood.
Nanocellulose Hybrid Lignin Complex Reinforces Cellulose to Form a Strong, Water-Stable Lignin–Cellulose Composite Usable as a Plastic Replacement
This study developed a strong, water-stable composite material made from cellulose and lignin extracted from agricultural waste (sugarcane bagasse), as an eco-friendly alternative to plastic. The lignin-cellulose composite showed dramatically improved wet strength compared to regular cellulose sheets, demonstrating potential as a biodegradable plastic replacement that would not generate persistent microplastic pollution.
Biobased films from amphiphilic lignin-graft-PLGA copolymer
Researchers synthesized amphiphilic copolymers by grafting poly(lactic-co-glycolic) acid onto alkaline lignin and lignosulfonate, then used an interphase formation technique to produce asymmetric films with one hydrophobic and one more polar surface. The study characterized the surface properties and elemental composition of these biobased films, demonstrating their potential as environmentally friendly alternatives to conventional synthetic polymer films.
Aqueous Dispersions from Wood-Derived Biopolymers for Barrier and Packaging Applications
This thesis explored wood-derived biopolymers as sustainable alternatives to synthetic packaging polymers, examining their structural and barrier properties and their potential to replace polyethylene, PVC, and polystyrene in packaging applications while avoiding microplastic pollution.
Effect of the combined addition of ultrasonicated kraft lignin and montmorillonite on hydroxypropyl methylcellulose bionanocomposites
Researchers incorporated ultrasonicated kraft lignin (0-10% w/w) and montmorillonite clay (3% w/w) into hydroxypropyl methylcellulose bionanocomposite films, finding that the combination reduced oxygen permeability by 65.8% and water vapour permeability by 43.8%, while also providing UV-shielding, antioxidant capacity, and antibacterial activity through synergistic lignin-clay interactions.
Effects of Lignin on the Thermal and Morphological Properties and Damages Mechanisms after UV Irradiation of Polypropylene Biocomposites Reinforced with Flax and Pine Fibres: Acoustic Emission Analysis
This is not about microplastic pollution — it is a materials science study examining how lignin content affects the UV aging, thermal degradation, and structural damage of polypropylene composites reinforced with flax and pine wood fibers, evaluated using acoustic emission analysis.
Lignin beyond the status quo: recent and emerging composite applications
This review examines recent advances in using lignin, a natural plant polymer, as a component in composite materials across various industries. Researchers highlight how lignin-based composites can serve as biodegradable alternatives to conventional plastics in packaging, construction, and other applications. The study suggests that scaling up lignin-based materials could help reduce dependence on petroleum-derived plastics and the resulting microplastic pollution.
Green synthesis of lignin nano- and micro-particles: Physicochemical characterization, bioactive properties and cytotoxicity assessment.
This study produced lignin nanoparticles and microparticles using a green synthesis method and characterized their properties, finding they have good thermal stability and bioactive characteristics. While focused on biomaterial applications rather than pollution, lignin-based particles represent a potential biodegradable alternative to conventional plastic microbeads used in consumer products.
Lignocellulose-Based Materials for Food Packaging: A Biorefinery Perspective
Not directly relevant to microplastics — this review focuses on lignocellulose-based (paper and cardboard) materials as sustainable alternatives for food packaging, mentioning microplastics only briefly as a motivation for reducing conventional plastic use.