The performance of Polyethylene (PE)/Clay/Silver nanocomposites is dependent to a great extent on the properties filler–matrix interface. To improve interfacial in PE/Clay/Silver composites, different types compatibilizers or adhesion promoters were introduced. compatibilization provided by maleic anhydride (MA), itaconic acid (IA) and 2-[2-(dimethylamine)-ethoxy] ethanol (DMAE) functionalized PEs for forming PE-based was studied compared. IA grafted into PE melt mixing obtain PEgIA...

Graphene oxide (GO) derived from oxidation of natural graphite contains many active groups that can interact with a great variety polar moieties. In this work, polypropylene (PP)/graphene nanocomposites using (PP) grafted amine‐alcohol (PPgDMAE) as compatibilizer were prepared by two different methods. Maleic anhydride PP (PPgMA) was reacted 2‐[2‐(dimethylamine)‐ethoxy] ethanol (DMAE) in the melt for forming functionalized (PPgDMAE). Nanocomposites one method, PP/GO nanocomposite direct...

The effect of nanometric magnesium and aluminum hydroxides on the flame retardancy high density polyethylene was studied. Additionally, maleic anhydride grafted (PEgMA) methyl acrylate (EMA) compatibilizers, tensile properties, also Morphological characterization nanocomposites carried out by means scanning transmission electron microscopy (STEM). Flame retardant properties were evaluated UL‐94 horizontal vertical tests as well cone calorimeter tests. Thermal degradation behavior analyzed...

Abstract Thermal conductivity of epoxy resins was highly improved (up to 1.95 W/mK) with the addition 7, 10, and 15 wt% a hybrid filler composed 70–30 ratio graphene copper nanoparticles, respectively. Hybrid obtained by high energy mechanical milling in two manners; just nanoparticles “dry milling” ethylene‐glycol “wet milling.” The crystalline structure severely destroyed dry but not wet milling. Wet thereafter used obtain that later producing nanocomposites. Raman spectrometry, X‐ray...

In this study, the effect on degree of organoclay exfoliation in polypropylene‐ethylene (PP‐EP)/Ethylene vinyl acetate (EVA)/organoclay blend system was studied while varying structural characteristics. Cloisite 6A, 15A, 20A, 25A, 30B, 93A, and 10A were used because they have different type modifier. Ternary PP‐EP/EVA/organoclay obtained with each clay results organized to analyze chemical modification (C20A, C15A, C6A), steric caused by surfactant structure (C15A C10A), length substitute...

ABSTRACT Polyethylene–montmorillonite nanocomposites were prepared in the melt applying various ultrasonic powers (231, 347, and 462 W) temperatures (185, 200, 215 °C) presence of itaconic acid. Dispersion–exfoliation montmorillonite situ low density polyethylene functionalization with acid carried out by ultrasound assisted extrusion process. Clay dispersion exfoliation was evaluated X‐ray diffraction (XRD) electronic microscopy (STEM). The degree grafting into (LDPE) determined infrared...

Ziegler-Natta isotactic polypropylene (iPP) was melt mixed with four different nucleating agents (carbon nanotubes (CNT), carbon nanofibers (CNF), lithium benzoate (LiBe), and a sorbitol derivative (Millad)) in order to study their effect on the crystallization of iPP. It found that promote alpha crystalline form. At 0.01 wt%, nanoparticles produced higher temperature “<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"...

Nucleation mechanisms of poly(ethylene terephthalate) (PET), poly(butylene (PBT), and naphthalate) (PEN) on single‐wall carbon nanotubes (SWNTs) are proposed, based experimental evidence, theoretical epitaxy analysis, semiempirical quantum chemical calculations. In order to elucidate early nucleation stages polyester‐coated were obtained from highly diluted solutions. High‐resolution transmission electron microscopy (HRTEM) revealed helical morphologies for PET/SWNTs PEN/SWNTs the formation...

Abstract Composite materials of polyethylene terephthalate with silanized halloysite nanoclay were prepared and characterized. Halloysite was first functionalized benzoyloxypropyltrimethoxysilane then incorporated it into the polymer matrix via melt extrusion at 0.5, 1, 2 wt% clay load ratios. The modified characterized by means elemental carbon quantification, thermogravimetric analysis, X-ray diffraction, nitrogen adsorption–desorption. silanization confirmed to have taken place an...

ABSTRACT The effect of multiwall carbon nanotubes (MWNT) concentration and cooling rate on the morphological, structural electrical properties non‐isothermally crystallized Poly(ethylene naphthalate) nanocomposites (PEN/MWNT) was studied. PEN/MWNT containing 1 2 wt % were prepared by melt blending in a mini twin screw extruder. Nanocomposite samples with different degree crystallinity ( X c ) obtained via crystallization at rates 2, 10, 20, 300°C min −1 . In this study it demonstrated that...

Maleic anhydride-grafted polypropylene (PP-g-MA) was reacted with aniline (NH2C6H5) to produce PP-g-NHC6H5 and used as a compatibilizer in polypropylene/carbon nanotube composites. Infrared spectroscopy (FTIR) nuclear magnetic resonance confirmed the reaction between PP-g-MA aniline. resulted better than PP-g-MA, producing good dispersion homogeneous distribution of carbon nanotubes less agglomerates, observed by SEM analysis. Improved is assumed be due π–π interactions –C6H5 ring prepared...

In this study, the combination of organomodified montmorillonite (MMT), magnesium hydroxide (MDH), graphene oxide (GO) and expandable graphite (EG) as intumescent flame retardant for Linear Low-Density Polyethylene-Cyclo-Olefin Copolymer (LLDPE/COC) blends has been investigated. An amine-alcohol modified polyethylene (PEgDMAE) was used compatibilizer. Limiting oxygen index (LOI), cone calorimeter determinations flammability test (Underwriters Laboratory – UL-94) were to evaluate properties....

The preparation of poly(hexylacrylate) core ‐poly(ethyleneglycol methacrylate) shell (PHA‐ co‐ PEGMA) nanogels, to be used as fillers in nanocomposite hydrogels, is reported. Stable nanogels with particle sizes between 90–300 nm were obtained varying the conditions synthesis. synthesis recipe could easily scaled up. Purified and dispersed aqueous solution soft for poly(2‐hydroxyethyl (PHEMA) crosslinked ethylene glycol dimethacrylate (EGDMA). hydrogels exhibit a larger swelling capacity...

Abstract The effect of vinyl acetat (VA) on the morphological, thermal stability, and mechanical properties heterophasic polypropylene–(ethylene‐propylene) copolymer (PP–EP)/poly(ethylene acetate) (EVA)/organoclay nanocomposites was studied. Tailored organoclay C20A selected to enhance exfoliation clay platelets. Depending VA content, there were two morphological populations in systems. Both directly observed by scanning transmission electron microscopy measured wide‐angle X‐ray diffraction...

This study presents the fabrication and characterization of cotton textile fibers coated with hydrogels containing silver Graphene or Oxide nanoparticles using 1-hexyl-3-methyl-imidazolium (HMIMPF6) ionic liquid (IL) as carbon filler dispersant. Acrylic acid/Itaconic acid (AA-IA) are synthesized by polymerizing an acrylic acid-itaconic aqueous (80/20 v/v) solution mixed 2-2-Azobis (2-methylpropionamide) diclorohydrate, N,N´-methylenbis (acrylamide). Then generated throughout hydrogel...

Abstract In this work, the methodology to obtain high‐density polyethylene (HDPE) and graphene (G) nanocomposites using phenol‐modified HDPE as compatibilizer obtained from reaction of malleated (HDPE‐g‐MA) with phenol, is described. Six different methods were used these composites, resulting combination melt solution mixing three procedures functionalize either or HDPE‐g‐MA phenol. Nanocomposites characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM), wide...

The effect of using a compatibilizer, such as maleic anhydride grafted polyethylene (PEgMA), on the flame retardancy and mechanical (tensile) properties HDPE nanocomposites with silane modified Mg(OH) 2 was studied. modification confirmed by FTIR. Filler dispersion characterized scanning electron microscopy in transmission mode (STEM) filler also evaluated. retardant were evaluated flammability tests (Underwriters Laboratory – UL‐94) cone calorimeter. mechanism which use PEgMA compatibilizer...

Abstract Natural graphite particles (NG) were surface modified via ethylene plasma treatment and characterized by infrared Raman spectroscopy, thermo‐gravimetric analysis, scanning electron microscopy, X‐ray diffraction, photoelectron spectroscopy. Ethylene polymerized during forming both a thin layer on the polyethylene that penetrate into layers, favoring its delamination or exfoliation. This beneficial effect finally impacts in thermal properties of composites: fact, conductivity ( k )...