Physical, Mechanical and Thermal Properties of Novel Bamboo/Kenaf Fiber-Reinforced Polylactic Acid (PLA) Hybrid Composites

Composites Communications, Journal Year: 2024, Volume and Issue: unknown, P. 102103 - 102103

Published: Sept. 1, 2024

Language: Английский

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Optimization of Microwave-Assisted Polycondensation for Flexible Biodegradable Polyurethane in Sustainable Packaging Applications

Materials Today Communications, Journal Year: 2025, Volume and Issue: unknown, P. 111878 - 111878

Published: Feb. 1, 2025

Language: Английский

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Synthesis, Modification, and Applications of Poly(vinyl chloride) (PVC)

Polymer-Plastics Technology and Materials, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 40

Published: Nov. 1, 2024

One of the polymers with biggest production volume is poly(vinyl chloride) (PVC) considering their versatility, durability, lightweight, as well low cost production, plastics have recently become an essential part everyone's daily life. However, increased and usage poses significant environmental problems because incomplete utilization, a lengthy biodegradation period, detrimental effects on living things. This study examines latest findings in PVC research, including its properties, polymerization, modification, recycling, diverse applications. It has been proposed that during along application both inorganic organic thermal stabilizers, can mitigate some basic limiting characteristics PVC. chemistry extended by vast continuous study, mainly chemical transformations this polymeric material. describes modification using different materials active modifying agent. The latter included substitutions, modifications, nucleophilic radicals, removal or dehydrochlorination, grafting polymerizations. PVC's consequences are examined, overview functionalization provided article, discussion main reactivity trends lens recycling.

Language: Английский

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Development of biobased poly(urethanes-co-oxazolidones) organogels

Soft Matter, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Epoxidized castor oil in polyurethanes preparation opens for a new class of “green” and sustainable poly(urethanes- co -oxazolidiones) organogels with enhanced mechanical thermal properties.

Language: Английский

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Optimization and characterization of ultrasonically extracted oil from watermelon seeds using response surface methodology: a pathway to biodiesel and epoxy oil production

Biomass Conversion and Biorefinery, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Language: Английский

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Experimental study on the shearing mechanical behavior of contact surface between polydimethylsiloxane modified polyaspartate polyurea and concrete

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 463, P. 140157 - 140157

Published: Jan. 25, 2025

Language: Английский

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Sustainable Strong Adhesive from Fully Biobased Itaconate Polyester and Brewer’s Spent Grain via Molar Ratio Optimization

ACS Applied Engineering Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Language: Английский

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Computational Approach for Optimizing Resin Flow Behavior in Resin Transfer Molding with Variations in Injection Pressure, Fiber Permeability, and Resin Sorption

Journal of Composites Science, Journal Year: 2025, Volume and Issue: 9(3), P. 129 - 129

Published: March 11, 2025

Resin transfer molding (RTM) is a key process for manufacturing high-performance fiber-reinforced composites, in which resin infiltration dynamics play critical role efficiency and defect minimization. This study presents numerical experimental analysis of flow biaxial noncrimp carbon fiber reinforcement using FormuLITE 2500A/2401B epoxy. A model based on Darcy’s law sorption effects was developed to investigate the influence injection pressure (15–25 kPa), permeability (350 × 10−12 m2 0.035 m2), porosity (0.78–0.58), viscosity (0.28–0.48 Pa·s), radius (0.001–0.003 m) flow-front progression. The results show that higher increased depth by 30% at 250 s, while 100× reduction reduced 75%. slowed ~18%, lower progression 15%. validation demonstrated relative error <5% between predictions measured data. provides insights into RTM optimization uniform impregnation

Language: Английский

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Sustainable strategy for the synthesis of novel vegetable oil derived polymeric materials

Polymers for Advanced Technologies, Journal Year: 2024, Volume and Issue: 35(8)

Published: Aug. 1, 2024

Abstract This study reports a sustainable strategy to produce polymeric materials with convenient properties, employing principles close green chemistry, starting from epoxy/methacrylate vegetable oil monomers. New bio‐based derivatives were obtained the well‐known epoxidized linseed oil, reacted renewable reagent, undecylenic acid, using suitable synthesis parameters in heterogeneous catalysis. The double bonds grafted on structure then reacted, resulting acid‐linseed (monomer 1). Monomer 1 was further used as an intermediate obtain methacrylic derivatives: monomer 2—methacrylate (bearing both epoxy and moieties) 3—methacrylate only functionalities). These three monomers employed different eco‐friendly ultraviolet/visible light curing attempts, proving their ability generate polymer networks reaction conditions. investigated through thermal thermo‐mechanical assays, establishing general properties. influence of fragments, content conditions established. Gel fraction varied according initial precursor composition (62/87% for epoxy‐based materials; 58/91% methacrylic‐based materials). A good elasticity observed new ( T g ranging 20 44°C), great resistance also (thermal degradation temperatures 400/453°C network 382°C one), agreement other studied mono‐ or di‐functional matrices.

Language: Английский

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Organic–Inorganic Hybrid Materials from Vegetable Oils

Macromolecular Rapid Communications, Journal Year: 2024, Volume and Issue: 45(23)

Published: Oct. 16, 2024

Abstract The production of materials based on fossil resources is yielding more sustainable and ecologically beneficial methods. Vegetable oils (VO) are one example base whose derivatives rival the properties their petro‐based counterparts. Gaps exist however way to fill them by employing sol–gel processes synthesize organic–inorganic hybrid materials, often derived from silane/siloxane compounds. Creating Si─O─Si inorganic networks in organic VO matrix permits attainment necessary strength, among other property enhancements. Consequently, many efforts have been directed optimally achieve with VOs. However, compatibilization challenging, desirable conditions for matching filler remain a key stumbling block toward wider application. Therefore, this review aims detail recent progress these new hybrids, focusing main strategies polymerize functionalize raw VO, followed routes highlighting addition fillers obtain composites.

Language: Английский

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