This study examines the influence of nanofillers on ultraviolet (UV) penetration depth photopolymer resins used in stereolithography (SLA) 3D printing, and their impact printability. Three nanofillers, multiwalled carbon nanotubes (MWCNT), graphene nanoplatelets (xGNP), boron nitride nanoparticles (BNNP), were incorporated into a commercially available resin to prepare nanocomposite formulations. The UV (Dp) was assessed using Windowpane method, revealing significant reduction with addition...

Abstract Poly(lactic acid) (PLA) is derived from crops, and has a broad application prospect in electronics electrical, automotive industries due to its biodegradability good physical mechanical properties. However, PLA's flammability serious melt dripping cannot meet the requirements of terminal products, thus limiting application. Over past decade, much research on flame retardant PLA emerged. This paper reviews development retardants recent years, focusing phosphorus‐based,...

This study investigates the development of sustainable nanocomposites using recycled polyethylene terephthalate (RPET) and polyamide 11 (PA-11) blends reinforced with graphene nanoplatelets (GNPs). RPET/PA-11 were compatibilized 2 phr Joncryl® processed melt blending followed by injection moulding. The effects varying GNP contents (1–4 phr) on mechanical, thermal, flame-retardant properties analysed. nanocomposite 1 GNPs exhibited an optimal balance flame-retardant, thermal properties, along...

The study examined the impact of sepiolite filler-filled nanocomposites in a novel recycled polyethylene terephthalate (rPET)/polyamide (PA11)/joncryl® blend. Sepiolite filler significantly improved mechanical and thermal properties nanocomposites. A twin-screw extruder injection moulding machines were employed to manufacture five different formulations tensile strength (37.6 MPa) Young's modulus (944.25 blend NCS-0 with addition 2 phr sepiolite. (NCS-2) recorded at 41.3 MPa 974.25 MPa,...

Flame retardant ethylene‐vinyl acetate (EVA) nanocomposites were prepared by melt blending using unmodified and modified sepiolite. Modification process of sepiolite was carried out 3‐aminopropyltrimethoxysilane in water/ethanol medium. Thermal, mechanical, flame retardancy properties the evaluated compared with each other. X‐ray diffraction scanning electron microscopy indicated that fibers are well‐dispersed EVA matrix. By addition (un)modified sepiolite, both thermal stability...

ABSTRACT In this study, the performance of an epoxy coating with hybrid nanozinc dust and halloysite nanotube (HNT) fillers on corrosion protection a carbon steel substrate was investigated. The resin mixed constant amount (1%) different contents HNTs (0, 0.5, 1, 1.5%) high speed mixer. Fourier transform infrared spectroscopy thermogravimetric analysis were used to analyze interactions between components in material thermal stability coating, respectively. Open‐circuit potential, salt spray...

This work explores a novel blend of recycled polyethylene terephthalate/polyamide 11 (rPET/PA11). The rPET/PA11 was introduced to enhance the mechanical properties rPET at various ratios. work’s main advantage utilize in thermoplastic form for applications. Three different ratios, i.e. 10, 20 and 30 wt.% PA11 samples, were prepared using twin-screw extruder injection moulding machine. examined terms tensile, flexural impact strength. tensile strength improved more than 50%, while increase...

Abstract This study investigated the synergistic effects of two different type nanofillers, that is, halloysite nanotube (HNT) and montmorillonite (MMT) on anticorrosion performance flame retardancy properties graphene oxide reinforced epoxy coatings for structural steel application. Electrochemical impedance spectroscopy (EIS), Tafel polarization, salt spray test (SST) limiting oxygen index (LOI) tests were conducted to reveal hybrid nanofillers corrosion protection coatings. The dispersion...

This research delves into the novel development of hybrid nanocomposites using recycled polyethylene terephthalate (rPET)/polyamide (PA11) with sepiolite, enhanced by integration Graphene Nanoplatelets (GNP). Five different formulations were produced co-rotating twin-screw extrusion and injection moulding techniques. The optimal blend, which includes equal amounts sepiolite graphene nanoplatelets (phr, 1 part per hundred resin each), exhibited a tensile strength 54.5 MPa, representing an...

This study presents an innovative approach to improving the mechanical and viscoelastic properties of 3D-printed stereolithography (SLA) nanocomposites by incorporating graphene nanoplatelets (xGNP) into photopolymer matrices. Utilizing SLA 3D printer, formulations with xGNP concentrations up 0.25 wt% were successfully produced. Post-print curing was carried out using two different methods: ultraviolet (UV) high-temperature at 160 °C. Mechanical characterization nanoindentation showed a...

Abstract Oil palm mesocarp fiber (MF) holds the potential to be used as a filler in polymeric biocomposite systems. To further improve dispersion and interfacial adhesion between polymer matrix, MF was treated with sodium hydroxide (NaOH) at different concentrations (1%, 3%, 5%, 8% 10%) soaking times (1 h, 4 8 24 h 48 h). The effects of NaOH solution duration on oil residue, thermal stability surface morphology were investigated. It found that time had prominent effect residue content...

Various concentrations of graphene nanoplatelets (GNP) i.e. 0.2, 0.4, 0.6, 0.8 and 1.0 wt. % were incorporated into the epoxy resin by sonication technique mechanical agitation process. Limiting oxygen index (LOI) test thermogravimetric analysis (TGA) indicated that presence GNP greatly enhanced flame retardancy properties coating. Salt spray results obtained suggested addition corrosion performance reducing water absorption in comparison with pristine Adhesion (cross-cut test) revealed...

Abstract The main disadvantages of plastic materials are that they do not readily break down in the environment and cause harmful effects. For a specific use, biodegradable and/or edible films have been produced to totally replace some typical polymeric packaging materials. Protein polysaccharides biopolymers film‐forming properties useful for food packaging. Gelatin is an example protein has ability form film, strong functional qualities, can be used as exterior barrier prevent drying....

Nanocomposites consisting of polyamide 6 (PA6) matrix with epoxidized natural rubber 50 (ENR-50) and organoclay-modified montmorillonite was prepared by melt blending in a twin-screw extruder followed injection molding. The influence varying amounts (0–30 phr) ENR-50 loadings on ENR-50-toughened PA6 nanocomposites examined. Morphological characterizations mechanical thermal properties the blend were investigated. Addition resulted decrease tensile strength modulus, while impact enhanced...

Abstract Nanocomposites consisting of polyamide 6 (PA6) matrix with epoxidized natural rubber-50 (ENR-50) and organoclay-modified montmorillonite (OMMT) were prepared by melt blending in a twin-screw extruder followed injection molding. The influence varying amounts (0–6 phr) OMMT loadings on ENR-50 (10 wt.%) toughened PA6 nanocomposites was examined. Morphological characterizations mechanical thermal properties the blend investigated. addition resulted an increase tensile strength modulus,...

Abstract BACKGROUND A poly(ethylene terephthalate) (PET) based carrier was used for enzyme immobilization due to its good physical and mechanical properties. However, high hydrophobicity chemically inactive properties hindered capability as an carrier. This study developed a PET‐based by grafting PET with maleic anhydride (MAH) before electrospinning. immobilize laccase characterized on stability after immobilization. RESULTS The highest activity recovery immobilized PET‐ g ‐MAH nanofiber...

Polymer foam biocomposites based on polypropylene/rice straw (PP/RS) were successfully prepared by using an extrusion foaming process. The compounding of PP and RS was performed in a twin-screw extruder which blended with crosslinker; dicumyl peroxide (DCP) blowing agent; azodicarbonamide (AZ). biocomposite extruded at temperatures 180, 190, 190 200 °C respectively, set from the feeder until die zone. thermal properties investigated gravimetric analysis (TGA).