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Article
Synthesis of a novel compound based on chitosan and ammonium polyphosphate for flame retardancy applications
In this investigation, a novel compound (NCSAPP) based on chitosan (CS) and ammonium polyphosphate (APP) was synthesized by employing solutions of chitosan and ammonium polyphosphate. The synthesized compound ...
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Article
Phytosynthesis of silver nanoparticles; naked eye cellulose filter paper dual mechanism sensor for mercury ions and ammonia in aqueous solution
In the present study, low cost novel cellulose filter paper based silver nanoparticles (CF-AgNPs) sensor was developed. AgNPs were synthesized via green approach using aqueous leaf extract of Convolvulus cneorum ...
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Article
Mechanical, thermal, and water vapor barrier properties of regenerated cellulose/nano-SiO2 composite films
Bionanocomposite films were fabricated by reinforcing regenerated cellulose (RC) with 3-aminopropyl-functionalized silica nanoparticles (nano-SiO2). The composite films were prepared by dissolving cotton linter R...
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Article
Development of a pH indicator composed of high moisture-absorbing materials for real-time monitoring of chicken breast freshness
A colorimetric bromocresol purple dye-based pH-responsive indicator was developed to monitor the quality of chicken breast meat by direct surface contact. To prevent direct contact of the dye with the chicken ...
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Article
Water resistance and antimicrobial properties of poly(vinyl alcohol) composite films containing surface-modified tetrapod zinc oxide whiskers
Tetrapod zinc oxide whiskers (TZnO-W) were successfully synthesized via a thermal oxidation method and surface-modified TZnO-W (STZnO-W) were prepared using a silane coupling agent to ensure good dispersion in...
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Article
Poly(propylene carbonate)/exfoliated graphite nanocomposites: Selective adsorbent for the extraction and detection of gold(III)
In this study, poly(propylene carbonate) (PPC) and exfoliated graphite (PPC–EG) composites were prepared by the solution blending method and their selective extraction and detection of gold(III) were investiga...
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Article
Effects of the paraffin wax (PW) content on the thermal and permeation properties of the LDPE/PW composite films
A series of low density polyethylene/paraffin wax (LDPE/PW) composite films were fabricated via a twin-screw extruder, and their morphologies, thermal properties, gas and vapor permeations, and surface propert...
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Article
Effect of tetrapod ZnO whiskers on the physical and moisture barrier properties of transparent polyimide/TZnO-W composite films
Tetrapod zinc oxide whiskers (TZnO-Ws) were successfully prepared by a thermal oxidation method and confirmed using scanning electron microscopy (SEM) and wide angle X-ray diffraction (WAXD). A series of polyi...
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Article
Preparation and properties of poly(vinyl alcohol)/vinyltrimethoxysilane (PVA/VTMS) hybrid films with enhanced thermal stability and oxygen barrier properties
To enhance the thermal stability and barrier properties of pure poly(vinyl alcohol) (PVA), a series of poly(vinyl alcohol)/vinyltrimethoxysilane (PVA/VTMS) hybrid films were prepared via a sol-gel process, and th...
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Article
Residual stress behavior and physical properties of transparent polyimide/surface-modified CaCO3 nanocomposite films
A series of polyimide (PI) nanocomposite films with various surface-modified colloidal calcium carbonate (SCaCO3) contents were prepared and their physical properties were investigated to understand their possibl...
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Article
Water sorption behavior in polyimide thin films controlled by inorganic additives
We investigated the decreased water diffusivity depending on the content and size of carbon black (CB) added to polyimide (PI) in order to synthesize composite films (PI-CB). CBs with different diameters were ...
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Article
Enhanced moisture barrier films based on EVOH/exfoliated graphite (EGn) nanocomposite films by solution blending
A series of ethyl-vinyl alcohol (EVOH) nanocomposite films with exfoliated graphite nanosheets (EGn) were prepared via a solution blending method and their physical and moisture barrier properties were investigat...
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Article
Effect of nano-filler dispersion on the thermal, mechanical and water sorption properties of green environmental polymer
Partially exfoliated nanocomposite (2) has been synthesized by intercalation of poly(propylene carbonate) (PPC) into commercial clay, Cloisite 20B (PPC/C-20B). Nanocomposite 2 was characterized phiso-chemically a...
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Article
Preparation of cationic latent initiators containing imidazole group and their effects on the properties of DGEBA epoxy resin
The thermal cationic latent initiators, N-benzyl-3-methylimidazolium hexafluoroantimonate (BMH1) and N-butyl-3-methylimidazolium hexafluoroantimonate (BMH2) were synthesized and applied to the thermal cationic po...
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Article
Synthesis and characterization of novel UV-Curable PU-Si hybrids: Influence of silica on thermal, mechanical, and water sorption properties of polyurethane acrylates
Organic-inorganic hybrid membranes (HM1-HM4) were synthesized by incorporating 3 wt% (HM1), 5 wt% (HM2), 10 wt% (HM3), and 20 wt% (HM4) of silica precursors into UV-curable polyurethane acrylate (PU) matrix us...
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Article
Synthesis and characterization of novel PPC-silica hybrid with improved thermal, mechanical, and water sorption properties
Organic-inorganic hybrids (H1-H5) based on environmentally friendly and biodegradable polymer, poly (propylene carbonate) (PPC) and tetraethoxysilane (TEOS) were synthesized using the sol-gel technique. The sy...
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Article
Thermal properties and water sorption behaviors of epoxy and bismaleimide composites
In this work, we prepared epoxy/BMI composites by usingN,N′-bismaleimide-4,4′-diphenylmethane (BMI), epoxy resin (diglycidyl ether of bisphenol-A (DGEBA)), and 4,4’-diamino diphenyl methane (DDM). The thermal pro...
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Article
Optical Properties of Polyimide Thin Films. Effect of Chemical Structure and Morphology
The optical properties of polyimide (PI) thin films with various backbone structures were investigated with prism coupler. PI films were prepared from two types of dianhydrides: pyromellitic dianhydride (PMDA)...
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Article
Effects of Diamines (1,4-Phenylene Diamine and 4,4′-Oxydianiline) on Water Sorption Behavior of Polyimide Thin Film
Several polyimide thin films based on two widely commercialized diamines, 1,4-phenylene diamine (PDA) and 4,4′-oxydianiline (ODA), were prepared from respective poly(amic acid) precursors. Water sorption behav...
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Article
Effect of Isomeric Oxydiphenylene Diamine on the Water Sorption Behavior of High Temperature Polyimide Thin Films
The effects of isomeric oxydiphenylene diamines (ODA), 3,4′ODA and 4,4′ODA, on the water sorption behavior in pyromellitic dianhydride (PMDA)-ODA, biphenyltetracarboxylic dianhydride (BPDA)-ODA, 3,3′,4,4′-benz...
