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61,005 resultsShowing papers similar to Valorization of wood pulp to mechanically strong and biodegradable packaging foams by wet foaming process
ClearEnergy absorption and resilience in quasi-static loading of foam-formed cellulose fibre materials
Researchers investigated lightweight foam-formed cellulose fibre materials as potential replacements for fossil-based plastic cushioning in packaging applications. They tested a wide range of material compositions and densities, finding that fibre type and refining significantly influenced energy absorption and resilience during compression. The study demonstrates that cellulose-based foams could provide adequate mechanical protection for packaging while avoiding the microplastic pollution associated with conventional plastic foams.
PET foaming: development of a new class of rheological additives for improved processability
This paper describes development of rheological additives to improve PET foaming for lightweight packaging, as an alternative to hard-to-recycle foamed polystyrene. Replacing polystyrene foam with more recyclable materials is important for reducing ocean microplastic pollution from packaging waste.
Preparation and Study of a Waste Corrugated Cardboard Fiber‐Based Foamed Material With Good Hydrophobicity and Flame‐Retardant Properties
Researchers fabricated biomass foams from waste corrugated cardboard fibres using a microwave-assisted foaming technique, investigating the synergistic effects of silane fibre modification and kaolin doping on mechanical, hydrophobic, and flame-retardant properties. The optimised foam achieved a compressive stress of 0.53 MPa at 50% strain, a 20.1% reduction in water absorption, and a 34.7% increase in limiting oxygen index compared to conventional foams, presenting a sustainable alternative to petroleum-based cushioning materials.
Energy Absorption and Resilience in Quasi-Static Loading of Foam-Formed Cellulose Fibre Materials
Researchers investigated foam-formed cellulose fibre materials as biodegradable replacements for fossil-based plastic cushioning in packaging, testing 129 trial formulations with densities from 21 to 123 kg per cubic meter to characterize quasi-static energy absorption and mechanical resilience properties.
Analisis Sifat Fisis dan Mekanik Biodegradable Foam Berbahan Dasar Selulosa Jerami Padi dan Polivinyl Alcohol
This paper is not about microplastics — it reports on the physical and mechanical properties of biodegradable foam made from rice straw cellulose and polyvinyl alcohol as a potential alternative to styrofoam, focusing on material science rather than microplastic pollution or health impacts.
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.
Green coniferous wood pulp–polyurethane composites by planetary centrifugal mixing technology for high energy buffering applications
Researchers developed a wood pulp–polyurethane composite cushioning material using planetary centrifugal mixing, achieving uniform dispersion of up to 75% pulp content and demonstrating impact forces 40–60% lower than conventional petroleum-based foams alongside biodegradation rates exceeding 50% within 100 days of soil burial.
Optimisation des mousses de PLA produites par méthode supercritique : Influence de la modification chimique et de l'incorporation de CNC sur les structures cellulaires résultantes
Researchers investigated the influence of chemical modification and cellulose nanocrystal (CNC) incorporation on the properties of polylactic acid (PLA) foams produced by supercritical CO2 foaming, motivated by the need for biodegradable alternatives to microplastic-generating petroleum-based foam materials. Chemical modification improved PLA melt elasticity and resulted in significant changes to cellular foam structure, advancing the development of biodegradable packaging foams.
Bio-based foams with low density and thermal conductivity through ethyl cellulose and SiO2 stabilized Pickering emulsion templating
Researchers developed fully bio-based foams using ethyl cellulose and SiO2 to stabilize Pickering emulsions as a sustainable alternative to petroleum-based plastic foams that shed microplastics. Optimized curing conditions (80°C, 3h, 3% benzoyl peroxide) produced low-density, low-thermal-conductivity porous foams with potential to replace conventional plastic foams in insulation and packaging.
A Facile One-Step Synthesis of Polystyrene/Cellulose (PS@MFC) Biocomposites for the Preparation of Hybrid Water-Absorbing Sponge Materials
Researchers developed a facile one-step emulsion polymerization method to synthesize polystyrene/cellulose microfibrils (PS@MFC) biocomposites, which were then fabricated into hybrid water-absorbing sponge materials as a sustainable alternative to conventional plastics that overcomes cellulose's hydrophilic incompatibility with hydrophobic polymer matrices.
A Biodegradable Bamboo-Based Foam as a Cleaner Alternative to Petroleum-Based Cushioning Materials for Sustainable Fruit Packaging
Scientists created a new packaging foam made from bamboo that works just as well as plastic foam for protecting fruit during shipping, but completely breaks down in compost instead of creating lasting waste. This matters because traditional plastic packaging foams don't decompose and break into tiny pieces called microplastics that can end up in our food and water. The bamboo foam could help reduce our exposure to these harmful plastic particles while still keeping our food safe during transport.
A sustainable acoustic customization of open porous materials using recycled plastics
Researchers developed a sustainable foamy acoustic material by incorporating recycled marine microplastic waste — polyethylene terephthalate (PET) and polystyrene (PS) — into a bio-based matrix, characterizing samples of different compositions for sound absorption and thermal insulation properties.
Vacuum pyrolysis depolymerization of waste polystyrene foam into high-purity styrene using a spirit lamp flame for convenient chemical recycling
Researchers developed a simple method for recycling waste polystyrene foam by vacuum pyrolysis over a spirit lamp flame for just 20 minutes, producing styrene monomer at 98% purity without additional purification steps, enabling low-cost closed-loop chemical recycling.
Characteristics of Styrofoam Waste-based Membrane Through Vapor and Liquid-induced Phase Inversion Process
Researchers prepared polymeric membranes from recycled Styrofoam waste using a phase-inversion technique with either immersion or evaporation solidification, finding that the solidification method significantly influenced hydrophobicity, pore configuration, porosity, and thermal stability of the resulting membranes.
Recycling of Waste Bamboo Biomass and Papermaking Waste Liquid to Synthesize Sodium Lignosulfonate/Chitosan Glue-Free Biocomposite
Not a microplastics paper — this study creates a biodegradable composite material from papermaking waste liquid (sodium lignosulfonate) and waste bamboo as a glue-free alternative to conventional wood-based building materials.
Effect of pulp prehydrolysis conditions on dissolution and regenerated cellulose pore structure
Researchers investigated how pre-treating wood pulp with acid hydrolysis affects the quality of regenerated cellulose films — a biodegradable alternative to synthetic plastic films. Lowering the cellulose chain length through hydrolysis dramatically improved how well the pulp dissolved and changed the porosity of the final film, with important implications for designing plant-based packaging materials.
Scalable Bamboo Fiber/Microfibrillated Cellulose Foam via Solvent‐Exchange‐Assisted Ambient Drying for Highly Efficient Microplastics Capture
Researchers developed a scalable bamboo fiber and microfibrillated cellulose foam for capturing microplastics from water, achieving 99.4% filtration efficiency with high flow rates. The foam was fabricated using an energy-efficient ambient drying process without toxic crosslinkers, and demonstrated excellent reusability and effectiveness across various plastic types and real water samples. The study presents a sustainable, high-performance approach to microplastic remediation in aquatic environments.
Polystyrene Waste Recycling Process as an Alternative Antistatic Packaging Raw Material
Researchers synthesized a composite from recycled polystyrene and coconut shell carbon black that could serve as antistatic packaging material, demonstrating a value-added use for styrofoam waste.
Development of Biodegradable Rigid Foams from Pineapple Field Waste
Not relevant to microplastics — this paper develops biodegradable rigid foam materials from pineapple agricultural waste (starch and cellulose) as a sustainable packaging alternative to petroleum-based plastics.
Influence of Lignin and Polymeric Diphenylmethane Diisocyante Addition on the Properties of Poly(butylene succinate)/Wood Flour Composite
Researchers developed biodegradable composite materials by blending poly(butylene succinate) with wood flour, studying how wood content affects mechanical properties. This biobased material research is relevant to developing plastic alternatives that would reduce long-term microplastic accumulation in the environment.
Cellulose Nanopaper: A Study of Composition and Surface Modifications to Develop Sustainably-Sourced Alternatives to Plastics
This study developed cellulose nanopaper — derived from wood pulp — with surface modifications to improve its properties as a sustainable alternative to petroleum-based plastic packaging films. The research addresses the need for biodegradable packaging materials that reduce the plastic waste that becomes microplastic contamination.
Efektivitas Pelepah Pinang (Areca catechu) dan Ampas Tebu (Saccharum officinarum) dalam Pembuatan Bio-Styrofoam
Researchers investigated the feasibility of making bio-styrofoam from areca nut (pinang) fronds and sugarcane bagasse as an eco-friendly alternative to expanded polystyrene. The natural fibre composites achieved mechanical and thermal properties suitable for food service packaging while avoiding the microplastic generation and toxicological risks of conventional styrofoam.
An evaluation model to predict microplastics generation from polystyrene foams and experimental verification
Researchers developed a simulation model that predicts when aged polystyrene foams will generate microplastics by linking plastic aging with mechanical failure over time, offering a tool to guide timely recycling before microplastic release occurs.
Characterization of Biodegradable Polymers for Porous Structure: Further Steps toward Sustainable Plastics
Four biodegradable polymers -- PBAT, PBS, PHBV, and PLA -- were systematically characterized for mechanical, thermal, and porous structural properties to assess their suitability as more sustainable alternatives to conventional plastics.