Listing 1 - 10 of 18 | << page >> |
Sort by
|
Choose an application
Biocomposites made from starch and natural fibers were studied in this work. Starch is abundantly produced by fractionation processes of crops and legumes while natural fibers, such as flax and hemp fibers, are largely produced in Europe. A new processing method, through microwave-assisted plasticization, was studied in this work. Thermoplastic starch (TPS) samples were produced from pea starch, glycerol and water. Low percentages of starch (20% (w/w)) and high temperatures (190°C) gave the most optimal results in terms of homogeneous plasticization and ability to be molded. Flax, hemp and microcrystalline cellulosic natural fibers were processed with the selected TPS matrices to create biocomposites. FTIR analyses and optical microscopy highlighted the presence of matrix around the fibers, indicating a good compatibility between the initial components. No degradation of the TPS matrix or the fibers relatable to the microwave process was identified. The fibers and starch composition of biocomposites, as well as their processing parameters, were related to their tensile test measurements through multilinear regression modeling. The database built with TPS and biocomposites data gave models with most of the variability explained when studying the Young’s modulus and tensile strength (R² > 0.96). The analysis of the regression coefficients significance indicated that many variables and interactions had an impact on the mechanical properties of the final material. To help the scientific literature in their further research, a list of significant parameters was produced.
Thermoplastic starch --- Biocomposites --- Natural fibers --- Microwave --- Explanatory model --- Mechanical properties --- Ingénierie, informatique & technologie > Ingénierie chimique --- Ingénierie, informatique & technologie > Multidisciplinaire, généralités & autres --- Sciences du vivant > Multidisciplinaire, généralités & autres
Choose an application
In recent years, there has been significant progress in biomass research as bio-based products are beneficial to the environment, energy-saving, and cost-saving if they are processed properly. The book collects the most state-of-the-art works related to the natural fiber composites in a Special Issue entitled “Natural Fiber Biocomposites”. These works address all the issues related the manufacturing of natural fiber composite products, from (1) raw materials, such as wood, flax fiber, and cellulose nanofiber; to the (2) raw material treatments, such as furfuryl alcohol pretreatment, ultrasonic vibration treatment (UVT), and extraction method for the resins; to the (3) process of the composites fabrication, such as thermo-hygro-mechanical densification; and to the (4) performance of the composites, including mechanical, moisture absorption, opacity, thermal, and biodegradability. Discussions on the adhesives/resins used in the natural fiber composites fabrication, such as dried distiller’s grains and solubles (DDGS), pennycress (Thlaspi arvense L.) press cakes (PPC), and lesquerella [Lesquerella fendleri (A. Gary) S. Watson] press cake (LPC), starch, and polylactic acid (PLA), are also part of the book. It is believed the technical information presented in this book will contribute to the development of the bio-based composites.
Research & information: general --- flexural properties --- panels --- by-products --- non-dietetic uses --- modulus of rupture --- modulus of elasticity --- nanofiber cellulose --- water hyacinth --- thermoplastic starch --- bionanocomposites --- ultrasonic vibration time --- density --- gas permeability --- thermal conductivity --- densification --- durability --- green composites --- cellulosic fibers --- water uptake --- biocomposite --- starch --- cellulose --- ultrasonication --- moisture absorption --- opacity --- mat porosity --- mat thermal conductivity --- fiber size --- hot-pressing process --- PLA --- flax --- thermoplastic composites --- mechanical properties --- biodegradability
Choose an application
In recent years, there has been significant progress in biomass research as bio-based products are beneficial to the environment, energy-saving, and cost-saving if they are processed properly. The book collects the most state-of-the-art works related to the natural fiber composites in a Special Issue entitled “Natural Fiber Biocomposites”. These works address all the issues related the manufacturing of natural fiber composite products, from (1) raw materials, such as wood, flax fiber, and cellulose nanofiber; to the (2) raw material treatments, such as furfuryl alcohol pretreatment, ultrasonic vibration treatment (UVT), and extraction method for the resins; to the (3) process of the composites fabrication, such as thermo-hygro-mechanical densification; and to the (4) performance of the composites, including mechanical, moisture absorption, opacity, thermal, and biodegradability. Discussions on the adhesives/resins used in the natural fiber composites fabrication, such as dried distiller’s grains and solubles (DDGS), pennycress (Thlaspi arvense L.) press cakes (PPC), and lesquerella [Lesquerella fendleri (A. Gary) S. Watson] press cake (LPC), starch, and polylactic acid (PLA), are also part of the book. It is believed the technical information presented in this book will contribute to the development of the bio-based composites.
flexural properties --- panels --- by-products --- non-dietetic uses --- modulus of rupture --- modulus of elasticity --- nanofiber cellulose --- water hyacinth --- thermoplastic starch --- bionanocomposites --- ultrasonic vibration time --- density --- gas permeability --- thermal conductivity --- densification --- durability --- green composites --- cellulosic fibers --- water uptake --- biocomposite --- starch --- cellulose --- ultrasonication --- moisture absorption --- opacity --- mat porosity --- mat thermal conductivity --- fiber size --- hot-pressing process --- PLA --- flax --- thermoplastic composites --- mechanical properties --- biodegradability
Choose an application
In recent years, there has been significant progress in biomass research as bio-based products are beneficial to the environment, energy-saving, and cost-saving if they are processed properly. The book collects the most state-of-the-art works related to the natural fiber composites in a Special Issue entitled “Natural Fiber Biocomposites”. These works address all the issues related the manufacturing of natural fiber composite products, from (1) raw materials, such as wood, flax fiber, and cellulose nanofiber; to the (2) raw material treatments, such as furfuryl alcohol pretreatment, ultrasonic vibration treatment (UVT), and extraction method for the resins; to the (3) process of the composites fabrication, such as thermo-hygro-mechanical densification; and to the (4) performance of the composites, including mechanical, moisture absorption, opacity, thermal, and biodegradability. Discussions on the adhesives/resins used in the natural fiber composites fabrication, such as dried distiller’s grains and solubles (DDGS), pennycress (Thlaspi arvense L.) press cakes (PPC), and lesquerella [Lesquerella fendleri (A. Gary) S. Watson] press cake (LPC), starch, and polylactic acid (PLA), are also part of the book. It is believed the technical information presented in this book will contribute to the development of the bio-based composites.
Research & information: general --- flexural properties --- panels --- by-products --- non-dietetic uses --- modulus of rupture --- modulus of elasticity --- nanofiber cellulose --- water hyacinth --- thermoplastic starch --- bionanocomposites --- ultrasonic vibration time --- density --- gas permeability --- thermal conductivity --- densification --- durability --- green composites --- cellulosic fibers --- water uptake --- biocomposite --- starch --- cellulose --- ultrasonication --- moisture absorption --- opacity --- mat porosity --- mat thermal conductivity --- fiber size --- hot-pressing process --- PLA --- flax --- thermoplastic composites --- mechanical properties --- biodegradability --- flexural properties --- panels --- by-products --- non-dietetic uses --- modulus of rupture --- modulus of elasticity --- nanofiber cellulose --- water hyacinth --- thermoplastic starch --- bionanocomposites --- ultrasonic vibration time --- density --- gas permeability --- thermal conductivity --- densification --- durability --- green composites --- cellulosic fibers --- water uptake --- biocomposite --- starch --- cellulose --- ultrasonication --- moisture absorption --- opacity --- mat porosity --- mat thermal conductivity --- fiber size --- hot-pressing process --- PLA --- flax --- thermoplastic composites --- mechanical properties --- biodegradability
Choose an application
Over the few coming decades, bio-based and biodegradable plastics produced from sustainable bioresources should essentially substitute the prevalent synthetic plastics produced from exhaustible hydrocarbon fossils. To the greatest extend, this innovative trend has to apply to the packaging manufacturing area and especially to food packaging implementation. To supply the rapid production increment of biodegradable plastics, there must be provided the effective development of scientific-technical potential that promotes the comprehensive exploration of their structural, functional, and dynamic characteristics. In this regard, the transition from passive barrier materials preventing water and oxygen transport as well as bacteria infiltration to active functional packaging that ensures gas diffusion selectivity, antiseptics' and other modifiers' release should be based on the thorough study of biopolymer crystallinity, morphology, diffusivity, controlled biodegradability and life cycle assessment. This Special Issue accumulates the papers of international teams that devoted to scientific and industrial bases providing the biodegradable material development in the barrier and active packaging as well as in agricultural applications. We hope that book will bring great interest to the experts in the area of sustainable biopolymers.
Research & information: general --- bio-HDPE --- GA --- natural additives --- thermal resistance --- UV stability --- food packaging --- antimicrobial properties --- polyethylene --- birch bark extract --- ultrasound --- thermoplastic starch --- biodegradation --- permeability --- diffusion --- sorption --- porous membranes --- hydrophilic and hydrophobic polymers --- PLA bottle --- bio-based and biodegradable polymers --- life cycle assessment --- environmental impact --- ReCiPe2016 method --- packaging material --- bio-based polymer composite --- natural rubber --- water absorption --- mycological test --- biodegradability --- mechanical properties --- poly(3-hydroxybutyrate) (PHB) --- polylactic acid (PLA) --- biomaterials --- gas permeability --- gas diffusion --- segmental dynamics --- electron spin resonance (ESR) --- scanning electron microscopy (SEM) --- differential scanning calorimetry (DSC) --- poly(3-hydroxybutyrate) --- poly(3-hydroxybutyrate-co-3-hydroxyvalerate) --- poly(3-hydroxybutyrate-co-4-methyl-3-hydroxyvalerate) --- hydrolysis --- pancreatic lipase --- mechanical behavior --- chitosan --- polymeric films --- crosslinking --- genipin --- sorption isotherm --- degree of crosslinking --- polylactide --- poly(ethyleneglycol) --- blending under shear deformations --- electrospinning --- oil absorption --- Monte Carlo --- bio-based polymers --- biodegradable packaging --- biopolymer structure --- encapsulation --- life cycle analysis
Choose an application
Additive manufacturing technology offers the ability to produce personalized products with lower development costs, shorter lead times, less energy consumed during manufacturing and less material waste. It can be used to manufacture complex parts and enables manufacturers to reduce their inventory, make products on-demand, create smaller and localized manufacturing environments, and even reduce supply chains. Additive manufacturing (AM), also known as fabricating three-dimensional (3D) and four-dimensional (4D) components, refers to processes that allow for the direct fabrication of physical products from computer-aided design (CAD) models through the repetitious deposition of material layers. Compared with traditional manufacturing processes, AM allows the production of customized parts from bio- and synthetic polymers without the need for molds or machining typical for conventional formative and subtractive fabrication.In this Special Issue, we aimed to capture the cutting-edge state-of-the-art research pertaining to advancing the additive manufacturing of polymeric materials. The topic themes include advanced polymeric material development, processing parameter optimization, characterization techniques, structure–property relationships, process modelling, etc., specifically for AM.
Technology: general issues --- History of engineering & technology --- polylactic acid (PLA) --- natural fibres --- biocomposite --- mechanical properties --- thermoplastic starch --- biopolymer --- composite --- food packaging --- pitch --- polyethylene --- carbon fibres --- extrusion --- blend --- antimicrobial --- antibacterial --- 3D printing --- fused filament fabrication --- composite material --- fused-filament fabrication --- mechanical strength --- naked mole-rat algorithm --- optimization --- process parameters --- bio-based polyethylene composite --- X-ray tomography --- CNT --- MWCNT --- non-covalent functionalisation --- polythiophene --- P3HT --- reaction time --- natural fiber composite --- product design --- sustainability design --- design process --- epoxidized jatropha oil --- shape memory polymer --- bio-based polymer --- jatropha oil --- ABS --- fatigue --- thermo-mechanical loads --- building orientation --- nozzle size --- layer thickness --- drug delivery --- biodegradable polymers --- polymeric scaffolds --- natural bioactive polymers --- antimicrobial properties --- anticancer activity --- tissue engineering --- lattice material --- flexible TPU --- internal architecture --- minimum ignition temperature of dispersed dust --- dust explosion --- dust cloud --- polyamide 12 --- additive technologies --- kenaf fibre --- fibre treatment --- thermal properties --- Fused Deposition Modelling (FDM) --- silver nanopowder --- kenaf --- high-density polyethylene
Choose an application
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 --- n/a --- Young's modulus --- wood-plastic
Choose an application
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.
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 --- n/a --- Young's modulus --- wood-plastic
Choose an application
Over the few coming decades, bio-based and biodegradable plastics produced from sustainable bioresources should essentially substitute the prevalent synthetic plastics produced from exhaustible hydrocarbon fossils. To the greatest extend, this innovative trend has to apply to the packaging manufacturing area and especially to food packaging implementation. To supply the rapid production increment of biodegradable plastics, there must be provided the effective development of scientific-technical potential that promotes the comprehensive exploration of their structural, functional, and dynamic characteristics. In this regard, the transition from passive barrier materials preventing water and oxygen transport as well as bacteria infiltration to active functional packaging that ensures gas diffusion selectivity, antiseptics' and other modifiers' release should be based on the thorough study of biopolymer crystallinity, morphology, diffusivity, controlled biodegradability and life cycle assessment. This Special Issue accumulates the papers of international teams that devoted to scientific and industrial bases providing the biodegradable material development in the barrier and active packaging as well as in agricultural applications. We hope that book will bring great interest to the experts in the area of sustainable biopolymers.
bio-HDPE --- GA --- natural additives --- thermal resistance --- UV stability --- food packaging --- antimicrobial properties --- polyethylene --- birch bark extract --- ultrasound --- thermoplastic starch --- biodegradation --- permeability --- diffusion --- sorption --- porous membranes --- hydrophilic and hydrophobic polymers --- PLA bottle --- bio-based and biodegradable polymers --- life cycle assessment --- environmental impact --- ReCiPe2016 method --- packaging material --- bio-based polymer composite --- natural rubber --- water absorption --- mycological test --- biodegradability --- mechanical properties --- poly(3-hydroxybutyrate) (PHB) --- polylactic acid (PLA) --- biomaterials --- gas permeability --- gas diffusion --- segmental dynamics --- electron spin resonance (ESR) --- scanning electron microscopy (SEM) --- differential scanning calorimetry (DSC) --- poly(3-hydroxybutyrate) --- poly(3-hydroxybutyrate-co-3-hydroxyvalerate) --- poly(3-hydroxybutyrate-co-4-methyl-3-hydroxyvalerate) --- hydrolysis --- pancreatic lipase --- mechanical behavior --- chitosan --- polymeric films --- crosslinking --- genipin --- sorption isotherm --- degree of crosslinking --- polylactide --- poly(ethyleneglycol) --- blending under shear deformations --- electrospinning --- oil absorption --- Monte Carlo --- bio-based polymers --- biodegradable packaging --- biopolymer structure --- encapsulation --- life cycle analysis
Choose an application
Additive manufacturing technology offers the ability to produce personalized products with lower development costs, shorter lead times, less energy consumed during manufacturing and less material waste. It can be used to manufacture complex parts and enables manufacturers to reduce their inventory, make products on-demand, create smaller and localized manufacturing environments, and even reduce supply chains. Additive manufacturing (AM), also known as fabricating three-dimensional (3D) and four-dimensional (4D) components, refers to processes that allow for the direct fabrication of physical products from computer-aided design (CAD) models through the repetitious deposition of material layers. Compared with traditional manufacturing processes, AM allows the production of customized parts from bio- and synthetic polymers without the need for molds or machining typical for conventional formative and subtractive fabrication.In this Special Issue, we aimed to capture the cutting-edge state-of-the-art research pertaining to advancing the additive manufacturing of polymeric materials. The topic themes include advanced polymeric material development, processing parameter optimization, characterization techniques, structure–property relationships, process modelling, etc., specifically for AM.
polylactic acid (PLA) --- natural fibres --- biocomposite --- mechanical properties --- thermoplastic starch --- biopolymer --- composite --- food packaging --- pitch --- polyethylene --- carbon fibres --- extrusion --- blend --- antimicrobial --- antibacterial --- 3D printing --- fused filament fabrication --- composite material --- fused-filament fabrication --- mechanical strength --- naked mole-rat algorithm --- optimization --- process parameters --- bio-based polyethylene composite --- X-ray tomography --- CNT --- MWCNT --- non-covalent functionalisation --- polythiophene --- P3HT --- reaction time --- natural fiber composite --- product design --- sustainability design --- design process --- epoxidized jatropha oil --- shape memory polymer --- bio-based polymer --- jatropha oil --- ABS --- fatigue --- thermo-mechanical loads --- building orientation --- nozzle size --- layer thickness --- drug delivery --- biodegradable polymers --- polymeric scaffolds --- natural bioactive polymers --- antimicrobial properties --- anticancer activity --- tissue engineering --- lattice material --- flexible TPU --- internal architecture --- minimum ignition temperature of dispersed dust --- dust explosion --- dust cloud --- polyamide 12 --- additive technologies --- kenaf fibre --- fibre treatment --- thermal properties --- Fused Deposition Modelling (FDM) --- silver nanopowder --- kenaf --- high-density polyethylene
Listing 1 - 10 of 18 | << page >> |
Sort by
|