Polymeric Matrix Nanocomposites: Influence of Cadmium Sulfide Nanostructure on the Thermal Degradation of Poly(Vinyl Alcohol) and Cellulose Acetate

Ghanbari, Davood; Salavati‐Niasari, Masoud; Sabet, Mohammad

doi:10.1007/s10876-012-0500-0

Cited by 28 publications

(12 citation statements)

References 14 publications

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“…Aluminum oxide provides heat insulation by reflecting heat when it accumulates on the surface. It's widely used because of its low cost and non-toxicity and easy to incorporate into various thermo-sets polymers [1][2][3][4][5]. One of the main disadvantages of nonnanostructure Al(OH) 3 is that for pass flame retardancy tests, 30-65 wt% of aluminum hydroxide is required.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Al(OH)3, Al2O3 Nanoparticles and Polymeric Nanocomposites

et al. 2015

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Applying of the most toxic halogenated and aromatic flame retardants is limited with respect to the environmental requirements. Nontoxic Al(OH) 3 nanoparticles were synthesized via a simple surfactant-free precipitation reaction at room temperature. The effect of various precipitation-agents on the morphology of the products was investigated. Al(OH) 3 nanoparticles were added to the polysulfone and poly styrene (PS) matrices. Electron microscope images show excellent dispersion of aluminium hydroxide in PS matrix. Nanoparticles appropriately enhanced both thermal stability and flame retardant property of the polymeric matrices. The enhancement of flame retardancy is due to endothermic decomposition of Al(OH) 3 that absorbs heat and simultaneously releases of water (makes combustible gases diluted and cold). Dispersed nanoparticles play the role of a barrier layer against flame, oxygen and polymer volatilization. Al(OH) 3 was converted to Al 2 O 3 and its photo-catalyst property in degradation three different organic dyes as pollutants was investigated.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Al(OH)3, Al2O3 Nanoparticles and Polymeric Nanocomposites

et al. 2015

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“…The sample is classified V-2 if it satisfies the combustion time criteria of V-1, but flaming drips are allowed. Materials are ranked as N.C. in UL-94 tests when the maximum total flaming time is above 50 s [24][25][26][27][28].…”

Section: Materials and Physical Measurementsmentioning

confidence: 99%

“…The use of halogen-free flame retardants is widespread due to the increasing concern about the health and environmental risks. The scientific literature contains very diverse strategies for improving fire resistance of poly vinyl alcohol and cellulose acetate [24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Sonochemical Synthesis of Spherical Silica Nanoparticles and Polymeric Nanocomposites

2015

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In this work spherical SiO 2 nanoparticles were synthesized by sonochemical method using a new Schiff-base as a capping agent. The silica nanoparticles were obtained by hydrolysis of tetraethyl orthosilicate in aqueous alcohol solution. The effect of different parameters such as molar concentration of Schiffbase ligands and ultrasonic irradiation on the morphology and size of the products was examined. The results demonstrated that applying the appropriate amount of Schiff-base could be effective in control of particle size. The influence of SiO 2 nanostructures on the flame retardancy of the poly styrene, poly vinyl alcohol, cellulose acetate and ethyl cellulose was studied. In-situ and ex situ nanocomposites were investigated and results confirm that flame retardancy of in situ nanocomposites were better than ex situ samples. HOÁÁÁSi-O-SiÁÁÁOH barrier prevents reaching of flame, heat and oxygen to the polymeric nanocomposites.

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“…They have several applications such as optical electronic devices, catalyst supports, semiconductor gas sensors and dye-based solar cells. Semiconductor nanomaterials with controllable sizes and shapes have been an active investigation subject because of their shape and size dependent physical and chemical properties [23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Photo-catalyst thallium sulfide: synthesis and optical characterization different morphologies of Tl2S nanostructures

Goudarzi

Ghanbari

Salavati‐Niasari

2015

J Mater Sci: Mater Electron

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In this work various morphologies of thallium sulfide nanostructures were synthesized via a hydrothermal reaction between thallium acetate and thioglycolic acid. The effect of different surfactants such as cationic, anionic and neutral on the morphology of Tl 2 S nanostructures was investigated. Thioglycolic acid was used as sulphur source and capping agent simultaneously. Photo-catalytic property of Tl 2 S was examined by degradation of organic dyes under UV light irradiation. Nanostructures were characterized by X-ray diffraction, photo luminescence, Fourier transform infra-red, diffuse reflectance spectroscopy, energy dispersive spectroscopy, scanning electron microscopy and transmission electron microscopy. Mono-dispersed nanoparticles were achieved by using poly ethylene glycol and poly vinyl pyrrolidone as capping agents.

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Polymeric Matrix Nanocomposites: Influence of Cadmium Sulfide Nanostructure on the Thermal Degradation of Poly(Vinyl Alcohol) and Cellulose Acetate

Cited by 28 publications

References 14 publications

Synthesis and Characterization of Al(OH)3, Al2O3 Nanoparticles and Polymeric Nanocomposites

Synthesis and Characterization of Al(OH)3, Al2O3 Nanoparticles and Polymeric Nanocomposites

Sonochemical Synthesis of Spherical Silica Nanoparticles and Polymeric Nanocomposites

Photo-catalyst thallium sulfide: synthesis and optical characterization different morphologies of Tl2S nanostructures

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