نتایج جستجو برای: nanoclay

تعداد نتایج: 770  

Journal: :علوم و تکنولوژی پلیمر 0
الهام فیض یوسف جهانی مسعود اسفنده سیدحسن جعفری

nanoclay/triphenyl phosphate hybrid system was employed to examine the fire retardancy and mechanical properties of pc/abs blends. each of the polymers and their blends are widely used in the automotive, electrical andelectronic industries. because most thermoplastics are easily combustible they need to be flame retarded to reduce the burning rate especially in the initial phase of a fire incid...

Journal: :جنگل و فرآورده های چوب 0
هاجر رئیسی نافچی دانشجوی گروه علوم و صنایع چوب و کاغذ دانشکدة منابع ‏طبیعی دانشگاه تربیت مدرس، نور، ایران مجید عبدوس دانشیار گروه شیمی دانشکدة شیمی دانشگاه صنعتی امیرکبیر، تهران، ایران سعید کاظمی نجفی استاد گروه علوم و صنایع چوب و کاغذ دانشکدة منابع ‏طبیعی دانشگاه تربیت مدرس، نور، ایران رحیم محبی گرگری مربی گروه علوم و صنایع چوب و کاغذ دانشکدة منابع طبیعی دانشگاه زابل، زابل، ایران

utilization of the new compatibilizers to improve matrix/filler interface adhesion and also, nanoparticles to improve the properties of wpc products have always been of interest to researchers. in this study, the effect of oxidized polypropylene in solution phase as a comptibilizer and nanoclay particles on the physical and mechanical properties of wood fiber reinforced polypropylene composite ...

دشت بیاض, محمدرضا, محمودی میمند, مریم,

In this research, stiffness of polymer-clay nanocomposites was simulated by Mori-Tanaka and two and three dimensional finite element models. Nanoclays were dispersed into polymer matrix in two ways, namely parallel and random orientations toward loading direction. Effects of microstructural parameters including volume fraction of nanoclays, elastic modulus of nanoclays and interphase, thickness...

Journal: :علوم و تکنولوژی پلیمر 0
حسین روغنی ممقانی محمد نجفی وحید حدادی اصل مهدی سلامی کلجاهی

styrene nanocomposites were synthesized by in-situ atom transfer radical polymerization at 110oc. the variations of monomer conversion and the linearity of semilogarithmic kinetic plot, some signs of living polymerizationand constant radical concentration in the reaction medium, were revealed by gas chromatography technique (gc). according to the gel permeation chromatography (gpc) results, the...

Journal: :Inorganics (Basel) 2021

Nanoclays are widespread materials characterized by a layered structure in the nano-scale range. They have multiple applications diverse scientific and industrial areas, mainly due to their swelling capacity, cation exchange plasticity. Due nanoclays can serve as host matrices for stabilization of several molecules and, thus, they be used sensors incorporating electroactive ions, biomolecules e...

2003
Ling Chen Shing-Chung Wong Sreekumar Pisharath

Maleic anhydride-modified polypropylene was compounded with commercially available surface-modified montmorillonite in a twin-screw extruder. Recompounding ensured the removal of visible tactoids from the extrudate but TEM and XRD techniques showed nonuniform dispersion of clay platelets. In this study, we investigated the mechanical and fracture properties of nanoclayfilled polypropylene. Emph...

Journal: :Applied Water Science 2022

Abstract The Nickel oxide nanoparticles (NiO NPs) and oxide/Nanoclay nanocomposite (NiO/Nc NC) were synthesized by chemical reduction method used for the photodegradation of Orange II dyes in aqueous solution. samples characterized through SEM, EDX, FTIR TGA. SEM analysis presented that NiO NPs are spherical with irregular shapes sizes. size particles is range 100–400 nm. It was also observed d...

Journal: :Journal of Manufacturing Science and Engineering-transactions of The Asme 2021

Abstract Three-dimensional (3D) extrusion printing of cellular/acellular structures with biocompatible materials has been widely investigated in recent years. However, the requirement a suitable solidification rate printable ink constrains utilization extrusion-based 3D techniques. In this study, nanoclay yield-stress suspension-enabled system and demonstrated to overcome constraints during pri...

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