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This Special Issue deals with the fascinating material class of nanocomposites consisting of extremely small particles (nanoparticles) which are embedded in polymers. Such materials are of paramount interest in various disciplines, especially chemistry, physics, biomedicine and materials science. Due to the diversity of the components of nanocomposites, they provide a broad spectrum of material properties and applications. The versatility of nanocomposites is indeed reflected by the research covered in this Special Issue. The field of nanocomposites includes innovative science and a source of inspiration for currently relevant economic topics as well as for envisaged technologies of the future. Indeed, this volume alludes to strategies for the preparation of nanocomposites and possibilities for a variety of applications, such as catalytic reactions, gas barriers, high refractive index materials, corrosion protection, electromagnetic inference (EMI) shielding, lithium ion batteries, tissue engineering and plastic surgery.

Research & information: general --- broadband dielectric spectroscopy --- dielectric strength --- loss factor --- magnesium oxide --- nanocomposite --- relative permittivity --- surface functionalization --- voltage response --- lithium-ion battery --- ionic-liquid-based separator --- hot-pressing --- inorganic nanoparticle --- fractal cluster --- nanostructures --- polymer matrix composites (PMCs) --- mechanical properties --- thermal properties --- elastomeric foam --- plastic reconstruction --- hydroxyapatite/polyurethane --- nanosized dispersion --- viscoelasticity --- biocompatibility --- nanoreactor --- catalyst confinement --- Flash Nanoprecipitation --- diffusion --- poly(vinyl alcohol) --- nanofiller --- film --- catalytic durability --- nanoparticle --- supported catalyst --- radical reactions --- platinum (Pt) --- H2O2 decomposition --- contact lens cleaning --- polymer brushes --- nanoparticles --- SPION --- thin magnetic films --- ATRP --- hybrid polymer/inorganic composites --- titanium oxide --- hybrid material --- anatase --- organic-inorganic hybrid --- high refractive index material --- MXene --- oxidized carbon nanotube (CNTO) --- nanoparticle decoration --- functionalization --- electromagnetic interference (EMI) shielding --- anti-corrosion --- tin sulfide (SnS) --- molybdenum disulfide (MoS2) --- electrochemical test --- composite coating --- nanocomposites --- surface-functionalization --- secondary dispersion --- hot-stretching --- metal–polymer interface --- multilayer --- structure–function correlation --- indirect band gap --- GISAXS --- GIWAXS --- UV-Vis

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This Special Issue deals with the fascinating material class of nanocomposites consisting of extremely small particles (nanoparticles) which are embedded in polymers. Such materials are of paramount interest in various disciplines, especially chemistry, physics, biomedicine and materials science. Due to the diversity of the components of nanocomposites, they provide a broad spectrum of material properties and applications. The versatility of nanocomposites is indeed reflected by the research covered in this Special Issue. The field of nanocomposites includes innovative science and a source of inspiration for currently relevant economic topics as well as for envisaged technologies of the future. Indeed, this volume alludes to strategies for the preparation of nanocomposites and possibilities for a variety of applications, such as catalytic reactions, gas barriers, high refractive index materials, corrosion protection, electromagnetic inference (EMI) shielding, lithium ion batteries, tissue engineering and plastic surgery.

broadband dielectric spectroscopy --- dielectric strength --- loss factor --- magnesium oxide --- nanocomposite --- relative permittivity --- surface functionalization --- voltage response --- lithium-ion battery --- ionic-liquid-based separator --- hot-pressing --- inorganic nanoparticle --- fractal cluster --- nanostructures --- polymer matrix composites (PMCs) --- mechanical properties --- thermal properties --- elastomeric foam --- plastic reconstruction --- hydroxyapatite/polyurethane --- nanosized dispersion --- viscoelasticity --- biocompatibility --- nanoreactor --- catalyst confinement --- Flash Nanoprecipitation --- diffusion --- poly(vinyl alcohol) --- nanofiller --- film --- catalytic durability --- nanoparticle --- supported catalyst --- radical reactions --- platinum (Pt) --- H2O2 decomposition --- contact lens cleaning --- polymer brushes --- nanoparticles --- SPION --- thin magnetic films --- ATRP --- hybrid polymer/inorganic composites --- titanium oxide --- hybrid material --- anatase --- organic-inorganic hybrid --- high refractive index material --- MXene --- oxidized carbon nanotube (CNTO) --- nanoparticle decoration --- functionalization --- electromagnetic interference (EMI) shielding --- anti-corrosion --- tin sulfide (SnS) --- molybdenum disulfide (MoS2) --- electrochemical test --- composite coating --- nanocomposites --- surface-functionalization --- secondary dispersion --- hot-stretching --- metal–polymer interface --- multilayer --- structure–function correlation --- indirect band gap --- GISAXS --- GIWAXS --- UV-Vis

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Over the last decades, natural fibers have received growing attention as alternatives to synthetic materials for the reinforcement of polymeric composites. Their specific properties, low price, health advantages, renewability and recyclability make natural fibers particularly attractive for these purposes. Furthermore, natural fibers have a CO2-neutral life cycle, in contrast to their synthetic counterparts. However, natural fibers are also widely known to possess several drawbacks, such as a hydrophilic nature, low and variable mechanical properties, poor adhesion to polymeric matrices, high susceptibility to moisture absorption and low aging resistance. Therefore, extensive research has been conducted on natural fiber-reinforced composites in the last 20 years. In this context, this book presents several interesting papers concerning the use of natural fibers for the reinforcement of polymer-based composites, with a focus on the evaluation of their mechanical performances, ballistic properties, rheological behavior, thermal insulation response and aging resistance in humid or aggressive environments.

Research & information: general --- flax FRP --- basalt FRP --- glass FRP --- wood beam --- bending --- hybrid FRP --- flax fiber --- nano-clay --- water uptake --- hygrothermal properties --- coaxial electrospinning --- length of straight fluid jet --- spreading angle --- nanoribbons --- linear relationship --- curaua fibers --- graphene oxide coating --- epoxy composites --- ballistic performance --- recycled cotton fibers --- stiffness --- micromechanics --- Young's modulus --- polymer matrix composites --- flax fibers --- surface treatments --- adhesion --- polymer-matrix composites (PMCs) --- composite laminates --- low-velocity impact --- delamination --- X-ray micro CT --- polypropylene --- basalt fibers --- composite laminate --- flexural --- impact damage --- dog wool fibers --- fillers --- polyurethane --- eco-composites --- renewable resources --- poly(lactic acid) --- poly(butylene succinate) --- plasticizer migration --- diffusion --- natural fibre composites --- mechanical properties --- elastic behaviour --- viscous response --- empty fruit bunch fiber (EFB) --- polybutylene succinate (PBS) --- starch --- glycerol --- characterizations --- biocomposite --- polymer Blends --- Mopa-Mopa resin --- biobased composite --- fique fibers --- wood-plastic --- leather waste --- thermoplastic starch --- mechanical characterization --- thermal characterization --- flax FRP --- basalt FRP --- glass FRP --- wood beam --- bending --- hybrid FRP --- flax fiber --- nano-clay --- water uptake --- hygrothermal properties --- coaxial electrospinning --- length of straight fluid jet --- spreading angle --- nanoribbons --- linear relationship --- curaua fibers --- graphene oxide coating --- epoxy composites --- ballistic performance --- recycled cotton fibers --- stiffness --- micromechanics --- Young's modulus --- polymer matrix composites --- flax fibers --- surface treatments --- adhesion --- polymer-matrix composites (PMCs) --- composite laminates --- low-velocity impact --- delamination --- X-ray micro CT --- polypropylene --- basalt fibers --- composite laminate --- flexural --- impact damage --- dog wool fibers --- fillers --- polyurethane --- eco-composites --- renewable resources --- poly(lactic acid) --- poly(butylene succinate) --- plasticizer migration --- diffusion --- natural fibre composites --- mechanical properties --- elastic behaviour --- viscous response --- empty fruit bunch fiber (EFB) --- polybutylene succinate (PBS) --- starch --- glycerol --- characterizations --- biocomposite --- polymer Blends --- Mopa-Mopa resin --- biobased composite --- fique fibers --- wood-plastic --- leather waste --- thermoplastic starch --- mechanical characterization --- thermal characterization

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Discontinuous fiber-reinforced polymers have gained importance in transportation industries due to their outstanding material properties, lower manufacturing costs and superior lightweight characteristics. One of the most attractive attributes of discontinuous fiber-reinforced composites is the ease with which they can be manufactured in large numbers, using injection and compression molding processes. The main aim of this Special Issue is to collect various investigations focused on the processing of discontinuous fiber-reinforced composites and the effect that processing has on fiber orientation, fiber length and fiber density distributions throughout the final product. Papers presenting investigations on the effect that fiber configurations have on the mechanical properties of the final composite products and materials were welcome in the Special Issue. Researchers who model and simulate processes involving discontinuous fiber composites as well as those performing experimental studies involving these composites were welcomed to submit papers. The authors were encouraged to present new models, constitutive laws, and measuring and monitoring techniques to provide a complete framework on these groundbreaking materials and to facilitate their use in different engineering applications.

Research & information: general --- fiber reinforced plastics --- long fiber reinforced thermoplastics (LFT) --- sliding plate rheometer --- fiber microstructure --- fiber orientation --- direct fiber simulation --- mechanistic model --- fiber reinforced thermoplastics --- modeling --- short fiber reinforcement --- process simulation --- smoothed particle hydrodynamics --- composite foams --- closed cells --- image processing --- finite element analysis --- polymer composites --- long fiber-reinforced thermoplastics (LFTs) --- core region --- shell region --- fiber length distribution (FLD) --- selective laser sintering --- recoating --- PA6 --- polyamide --- glass --- fibres --- beads --- orientation --- recoating speed --- layer thickness --- energy density --- pARD-RSC --- short fiber reinforced --- mechanistic modelling --- Carbon nanotubes --- CNTs --- nanocomposites --- electrical resistivity --- conductivity --- electric fields --- computational modelling --- compression moulding --- moulding compounds --- optimisation --- wet laid --- isotropic --- tensile --- carbon fiber --- discontinuous --- recycling --- hybrid composites --- polymer-matrix composites (PMCs) --- thermotropic liquid crystalline polymer --- glass fibers --- long fiber reinforced plastics --- fiber breakage --- fiber length --- additive tooling --- additive manufacturing --- rapid tooling --- injection molding --- polypropylene --- long-fiber-reinforced thermoplastics --- fiber concentration --- stereolithography --- carbon fiber recycling --- lightweight design --- long fiber-reinforced thermoplastics --- parameter-optimization --- injection molding compounding --- long fiber reinforced thermoplastics --- fiber orientation models --- calibration --- discontinuous fiber composites (DFC) --- compression molding --- sheet molding compound (SMC) --- carbon fiber sheet molding compound (CF-SMC) --- randomly oriented strands (ROS) --- computed tomography (CT) --- direct fiber simulation (DFS) --- prepreg platelet molding compound (PPMC) --- tow-based discontinuous composite (TBDC) --- plastics processing --- composites --- glass fiber --- sheet molding compound --- long fiber --- fiber content --- fiber reinforced plastics --- long fiber reinforced thermoplastics (LFT) --- sliding plate rheometer --- fiber microstructure --- fiber orientation --- direct fiber simulation --- mechanistic model --- fiber reinforced thermoplastics --- modeling --- short fiber reinforcement --- process simulation --- smoothed particle hydrodynamics --- composite foams --- closed cells --- image processing --- finite element analysis --- polymer composites --- long fiber-reinforced thermoplastics (LFTs) --- core region --- shell region --- fiber length distribution (FLD) --- selective laser sintering --- recoating --- PA6 --- polyamide --- glass --- fibres --- beads --- orientation --- recoating speed --- layer thickness --- energy density --- pARD-RSC --- short fiber reinforced --- mechanistic modelling --- Carbon nanotubes --- CNTs --- nanocomposites --- electrical resistivity --- conductivity --- electric fields --- computational modelling --- compression moulding --- moulding compounds --- optimisation --- wet laid --- isotropic --- tensile --- carbon fiber --- discontinuous --- recycling --- hybrid composites --- polymer-matrix composites (PMCs) --- thermotropic liquid crystalline polymer --- glass fibers --- long fiber reinforced plastics --- fiber breakage --- fiber length --- additive tooling --- additive manufacturing --- rapid tooling --- injection molding --- polypropylene --- long-fiber-reinforced thermoplastics --- fiber concentration --- stereolithography --- carbon fiber recycling --- lightweight design --- long fiber-reinforced thermoplastics --- parameter-optimization --- injection molding compounding --- long fiber reinforced thermoplastics --- fiber orientation models --- calibration --- discontinuous fiber composites (DFC) --- compression molding --- sheet molding compound (SMC) --- carbon fiber sheet molding compound (CF-SMC) --- randomly oriented strands (ROS) --- computed tomography (CT) --- direct fiber simulation (DFS) --- prepreg platelet molding compound (PPMC) --- tow-based discontinuous composite (TBDC) --- plastics processing --- composites --- glass fiber --- sheet molding compound --- long fiber --- fiber content

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Continuous research advances have been observed in the field of environmentally-friendly polymers and polymer composites due to the dependence of polymers on fossil fuels and the sustainability issues related to plastic wastes. This book compiles the most recent research works in biopolymers, their blends and composites, and the use of natural additives, such as vegetable oils and other renewable and waste-derived liquids, with their marked environmental efficiency devoted to developing novel sustainable materials. Therefore, Environmentally Friendly Polymers and Polymer Composites provides an overview to scientists of the potential of these environmentally friendly materials and helps engineers to apply these new materials for industrial purposes.

Research & information: general --- PLA --- PCL --- TPS --- biopolymer blends --- mechanical properties --- compostable plastics --- green composites --- natural fillers --- poly(butylene succinate) (PBS) --- almond shell flour (ASF) --- poly (lactic acid) (PLA) --- poly(butylene succinate-co-adipate) (PBSA) --- binary blends --- shape memory behaviour --- polymer‒matrix composites (PMCs) --- thermomechanical --- electron microscopy --- compatibilizers --- poly(lactic acid) (PLA) --- natural fibre (NF) --- nano-hydroxyapatite (nHA) --- flammability --- crab shell --- chitin --- spherical microgels --- reverse micelle --- gelation --- chitosan (CS) --- anti-oxidant --- anti-apoptotic activity --- rotenone --- Parkinson’s disease (PD) --- composite materials --- hybrid resin --- natural reinforcement --- non-uniformities --- mechanical behavior --- antifungal activity --- dendrimer --- Origanum majorana L. essential oil --- Phytophthora infestans --- maleinized linseed oil MLO --- poly(lactic acid) --- diatomaceous earth --- biocomposites --- active containers --- polymer mixtures --- blends --- cashew nut shell liquid (CNSL) --- polypropylene --- high impact polystyrene --- compatibilization --- PHB --- PHBV --- rice husk --- biosustainability --- waste valorization --- bacterial cellulose --- natural rubber --- reinforcing --- biodegradable polymers --- Arboform --- epoxidized oil --- maleinized linseed oil --- toughness --- thermal stability --- pectin --- food packaging --- active compounds --- agro-waste residues --- circular economy --- graphene oxide --- size selection --- sodium alginate --- bio-based polymers --- biodegradable polyesters --- wood plastic composites --- natural additives and fillers --- composites characterization --- bioplastics manufacturing