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Papers
20 resultsShowing papers similar to Relating Amorphous Structure to the Tear Strength of Polylactic Acid Films
ClearMicrostructure and performance evolution of poly (l-lactic acid) during physical aging: Determinable role of molding method on β-relaxation
Researchers investigated how the manufacturing method of poly(L-lactic acid) — a biodegradable plastic relevant to microplastic pollution reduction — affects its mechanical aging behavior, finding that quenching versus cold-pressing creates different molecular network structures that determine how quickly the material becomes brittle over time.
Modification of Poly(lactic acid) by the Plasticization for Application in the Packaging Industry
Researchers investigated the modification of poly(lactic acid) through plasticization to improve its mechanical properties for use in packaging industry applications as a biodegradable alternative to conventional plastics.
Impact of the Incorporation of Nano-Sized Cellulose Formate on the End Quality of Polylactic Acid Composite Film
Researchers found that incorporating nano-sized cellulose formate fillers, including cellulose nanofibrils and nanocrystals, into polylactic acid films significantly improved mechanical strength and barrier properties while maintaining the biodegradable character of the composite, offering a path toward higher-performance sustainable packaging.
The Potential of Bio-Based Polylactic Acid (PLA) as an Alternative in Reusable Food Containers: A Review
This review evaluates polylactic acid as a potential sustainable alternative to polypropylene in reusable food containers, examining its mechanical, thermal, and barrier properties. Researchers found that while PLA has limitations including brittleness and heat sensitivity, these can be improved through blending with other biopolymers. The study compares PLA-based composites against conventional polypropylene and considers end-of-life options and commercial costs of making the switch.
Mechanical properties of fibre/ filler based poly(Lactic Acid) (Pla) composites : A brief review
This review examines the mechanical properties of polylactic acid (PLA)-based composites reinforced with natural fibers and fillers, presenting PLA as a biodegradable alternative to conventional plastics in applications ranging from agriculture to biomedical devices. Improving the strength and durability of bio-based plastics is essential for replacing petroleum-based materials that generate persistent microplastic pollution.
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.
Crystallization behaviors of chain extended poly (lactic acid) modified with ST-NAB3 and its improved mechanical and thermal properties
Researchers modified poly(lactic acid) (PLA) with a styrene-acrylonitrile-glycidyl methacrylate chain extender (SAG) and an octamethylenedicarboxylic dibenzoylhydrazide nucleating agent (ST-NAB3) to improve its crystallization, mechanical properties, and thermal resistance as a biodegradable alternative to petroleum-based single-use plastics. The modifications significantly enhanced PLA crystallinity and mechanical performance, supporting its use in disposable packaging and tableware applications.
Poly Lactic Acid (PLA) Nanocomposites: Effect of Inorganic Nanoparticles Reinforcement on Its Performance and Food Packaging Applications
This review summarized approaches to reinforcing polylactic acid (PLA) bioplastic with inorganic nanoparticles — including clay, silica, and metal oxides — to improve its mechanical strength, barrier properties, and thermal stability for food packaging applications while retaining biodegradability.
Biaxial Stretching of PBAT/PLA Blends for Improved Mechanical Properties
Researchers used biaxial stretching to improve the mechanical properties of PBAT/PLA biodegradable polymer blends without chemical additives, demonstrating that anisotropic crystallization induced by stretching enhances tensile strength and flexibility. The approach offers a strategy for tuning biodegradable plastic performance to replace conventional plastics more effectively.
Molecular Dynamics Study on the Effect of Moisture Content on the Mechanical Properties of Amorphous Cellulose
This molecular dynamics study investigated how increasing moisture content weakens the mechanical properties of amorphous cellulose at the molecular level. Understanding this moisture-property relationship is important for developing cellulose-based green materials and biodegradable plastics that could replace conventional synthetic polymers.
Morpho-structural and thermo-mechanical characterization of recycled polypropylene and polystyrene from mixed post-consumer plastic waste
Researchers characterized recycled polypropylene and polystyrene recovered from mixed post-consumer plastic waste, assessing their morphological, structural, and thermo-mechanical properties to evaluate suitability for reuse in manufacturing.
Enhancing the Mechanical Properties of Inherently Brittle, Biobased and Biodegradable Polyhydroxybutyrate (PHB) Polymer by Cotton Fibre Reinforcement and Interfacial Grafting
This study developed biobased and biodegradable packaging films by modifying PLA and PBSA blends, achieving improved flexibility and toughness compared to brittle pure PLA, with the goal of replacing fossil-fuel-based packaging materials with compostable alternatives.
Understanding the Effects of Adding Metal Oxides to Bioplastic and Bioplastic Blends on the Mechanical and Rheological Behaviour, Wettability, and Photo-Oxidation Resistance
Not relevant to microplastics — this study examines how adding zinc oxide and titanium dioxide nanoparticles affects the mechanical and photo-oxidation properties of polylactic acid bioplastic blends, focused on materials engineering rather than environmental plastic pollution.
High-performance biodegradable poly(lactic acid) composites with xylan and lignin copolymer
Researchers developed high-performance biodegradable poly(lactic acid) composites by incorporating xylan and lignin derived from lignocellulosic biomass, improving PLA mechanical properties and addressing its brittleness limitations while maintaining biodegradability as a sustainable alternative to conventional plastics.
The Impact of Micro-Nanoparticles on Morphology, Thermal, Barrier, Mechanical, and Thermomechanical Properties of PLA/PCL Blends for Application in Personal Hygiene: A Review
This review covers how micro- and nanoparticle reinforcements alter the morphology, thermal stability, barrier properties, and mechanical performance of PLA/PCL biodegradable polymer blends for personal hygiene applications. It evaluates the potential of these composites to replace non-biodegradable plastics while meeting functional performance requirements.
Bilayer Films of Poly(lactic acid) and Cottonseed Protein for Packaging Applications
Researchers produced bilayer films combining polylactic acid with cottonseed protein isolate for food packaging applications and found that the bilayer design improved mechanical and barrier properties compared to single-layer PLA films while maintaining biodegradability.
Influence of the microstructure in the biodegradability process of eco‐friendly materials based on polylactic acid and mango seed for food packaging to minimize microplastic generation
Researchers developed biocomposite food packaging materials by loading mango seed components (kernel and integument) into a polylactic acid (PLA) matrix via casting, characterizing the resulting materials for mechanical, thermal, and biodegradation properties. They found that the mango-PLA composites showed improved performance characteristics and biodegradability potential compared to pure PLA, with implications for reducing microplastic generation from food packaging disposal.
Effect of Matrix Crystallization on Vickers Hardness of Cellulose Fiber / Poly(lactic acid) Composites
This study investigated how crystallization processes affect the hardness of composites made from cellulose nanofibers and polylactic acid, a biodegradable plastic, with implications for replacing conventional fossil-fuel-based plastics.
Chemical-Physical Characterization of Bio-Based Biodegradable Plastics in View of Identifying Suitable Recycling/Recovery Strategies and Numerical Modeling of PLA Pyrolysis
Researchers characterized several bio-based and biodegradable polymer alternatives to conventional plastics using chemical-physical methods, assessing their suitability for industrial composting and identifying challenges in managing these bioplastics in the existing waste stream.
About the transformation of low Tm into high Tm poly(l-lactide)s by annealing under the influence of transesterification catalysts
Researchers studied how polylactic acid (PLA) crystals transform into higher-melting forms during heating with catalysts. Understanding the crystallization behavior of biodegradable PLA plastics is important for designing materials that degrade more effectively in the environment.