Mechanical properties of titanium dioxide-filled polystyrene microcomposites

Selvin, Thomas P.; Joseph, Kuruvilla; Thomas, Sabu

doi:10.1016/s0167-577x(03)00470-1

Cited by 144 publications

(106 citation statements)

References 30 publications

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“…By incorporating the fillers this can be enhanced. The elongation at break values depends on the filler/matrix interaction [5]. The same explanation presented in respect of tensile strength also applies here.…”

Section: Resultssupporting

confidence: 61%

“…Therefore, the ratio is obtained from the linear region of the stress-strain curve [5,17]. A number of reports [18][19][20][21][22][23][24][25][26][27] [5].…”

Section: Resultsmentioning

confidence: 99%

“…The increase in modulus due to addition of fillers is attributed to the various parameters of the fillers added to the polymer. They include the aspect ratio of the filler [5,17], the orientation of the fillers, interfacial interaction and the nature of the failure [5]. From the studies reported [18,24,[28][29][30][31][32][33][34][35][36], it seems that there is a critical particle size, usually in nanoscale, above which there is no effect on Treated Titanium Dioxide Dispersion/Natural Rubber Latex composite modulus.…”

Section: Resultsmentioning

confidence: 99%

“…The upper bound response assumes strong adhesion between the polymer and filler, while the lower bound response assumes weak, or no, adhesion between the polymer and filler materials. Most particulate-filled polymers are said to fall somewhere between these two responses [5]. Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The inclusion of inorganic fillers in polymer usually results in improvement in strength, toughness, processability, dimensional stability, wear and lubrication properties, and in some cases resistance to thermal and UV radiation of the matrix. The effect of fillers on properties of the composites depends on the concentration, particle size, shape and the interaction of the fillers with the matrix [5]. Among these factors, the role of particle size seems to occupy a significant place in the determination of properties of polymer composites.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical and Morphological Properties of Films Based on Ultrasound Treated Titanium Dioxide Dispersion/Natural Rubber Latex

Ochigbo¹,

Luyt²

2012

CMATERIALS

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Titanium dioxide dispersion was sonicated as an attempt to reduce its particle sizes and thereafter used as fillers in making natural rubber (NR) composite films. Fillers of reduced particle sizes, owing to enhanced surface areas and aspect ratios, usually result in unique property improvements. The reinforcing effects of untreated and sonicated samples of the fillers were, therefore, compared through the measurement of tensile properties of the dry films. Results, however, indicated a monotonic decrease in moduli with filler content, contrary to behaviour due to conventional fillers, but showed improvement in both elongation at break and tensile strength data at low filler concentration (2phr), and thereafter a decrease in the trend. The affinity between the filler and matrix was examined using the composite theory of Einstein. Theoretical prediction of Young's moduli from this was compared against experimental data and it was found that there was certain level of interfacial interaction.

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Section: Resultssupporting

confidence: 61%

“…Therefore, the ratio is obtained from the linear region of the stress-strain curve [5,17]. A number of reports [18][19][20][21][22][23][24][25][26][27] [5].…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Mechanical and Morphological Properties of Films Based on Ultrasound Treated Titanium Dioxide Dispersion/Natural Rubber Latex

Ochigbo¹,

Luyt²

2012

CMATERIALS

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Light Gold: A Colloidal Approach Using Latex Templates

Hag

Handschin

Gschwend

et al. 2020

Adv Funct Materials

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A new 18 karat light gold, composed of gold single crystals, amyloids, and a polymer latex matrix is developed. It is similar to a glassy plastic, yet lighter than aluminum and of use in watches, jewelry, radiation shielding, catalysis, and electronics. The material is prepared via a hydrogel precursor dried into an aerogel. Annealing of the polystyrene matrix under vacuum gives rise to a homogeneous template. The final apparent density and porosity of the material depend directly on the volumetric concentration of the starting solution used for hydrogel formation. After annealing, a homogeneous microstructure is obtained in which the shining gold single crystal platelets are evenly embedded in a polystyrene matrix. The material has a glass transition temperature of ≈105 °C which allows for annealing and molding above this temperature. A general scaling behavior is found for the Young's modulus of the material with the density. The Young's modulus of the material with a density of 1.7 g cm−3 is ≈50 MPa. The density and stiffness, as well as the color, of the material can be tuned depending on the final application.

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Anhydrous Supercritical Carbon Dioxide Method for the Controlled Silanization of Inorganic Nanoparticles

et al. 2004

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creases in framework pore size from 3.7 nm for the carbon host to 2.9±2.5 nm for the intercalates, along with concomitant decreases in pore volume, further verified the lattice contraction upon intercalation. The conductivity of the carbon was only slightly reduced upon ppy intercalation, as expected for a binding mechanism in which the ppy is localized primarily on the intra-channel surfaces of the carbon host. The results suggest that polymer intercalation can be used as an effective means of modifying the surface chemistry of mesostructured carbon, while retaining the electrical conductivity of the carbon for potential applications in sensing. ExperimentalSynthesis: A C-MSU-H carbon replica was prepared by first impregnating 1.00 g of MSU-H silica [12] with 1.25 g sucrose and 0.14 g H 2 SO 4 in 6.00 g H 2 O and then heating the impregnated silica at 160 C for 6 h in an open beaker. The process was repeated a second time using 0.75 g sucrose and 0.08 g H 2 SO 4 in 5.00 g H 2 O as the impregnating solution. The resulting composite was carbonized at 800 C for 2 h under vacuum and then treated with 10 % hydrofluoric acid twice to remove the silica template and form the C-MSU-H carbon replica.The synthesis of ppy/C-MSU-H intercalates was accomplished by mixing 0.10 g of the C-MSU-H carbon in 40 mL of an ethanol solution containing different quantities of pyrrole (Aldrich, 98 %) and allowing the ethanol to evaporate under a stream of nitrogen. To the dried mixture was added 50 mL of an aqueous solution containing excess FeCl 3 (Aldrich, 97 %) as an oxidizing agent. After a reaction time of 20 h at room temperature, the p-doped intercalate was washed thoroughly with H 2 O, then with ethanol, and dried in a vacuum desiccator at room temperature.Characterization: X-ray diffraction analysis was undertaken using Rigaku rotaflex 200B equipped with a rotating anode and Cu Ka radiation. Thermogravimetric analysis was performed on a Cahn TG System 121 Analyzer. The powdered samples were heated to 800 C at a heating rate of 5 C min ±1 under air flow. The N 2 adsorption±desorp-tion isotherms were measured at ±196 C on a Micromeritics Tristar instrument. Before measurement, samples were evacuated overnight at room temperature. The Brunauer±Emmett±Teller (BET) surface area and pore size distributions were calculated from the linear part of the BET plot and from the nitrogen adsorption branch using the Barrett±Joyner±Halenda (BJH) model.In order to determine the electrical conductivity of the new intercalates, a tube-shaped quartz sample holder which allowed the C-MSU-H carbon to be compressed at 1.9 10 2 kg cm ±2 was used. The retention of the mesostructured framework following compression was confirmed by XRD. A four-point probe direct current (DC) electrical conductivity method was used to obtain the conductivities at an applied current of 0.1 or 1.0 mA (Keithley 2400 source meter) under vacuum conditions of~10 ±5 torr and over the temperature range 80±400 K. In recent years, much attention has been paid to the surface modific...

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Mechanical properties of titanium dioxide-filled polystyrene microcomposites

Cited by 144 publications

References 30 publications

Mechanical and Morphological Properties of Films Based on Ultrasound Treated Titanium Dioxide Dispersion/Natural Rubber Latex

Mechanical and Morphological Properties of Films Based on Ultrasound Treated Titanium Dioxide Dispersion/Natural Rubber Latex

Light Gold: A Colloidal Approach Using Latex Templates

Anhydrous Supercritical Carbon Dioxide Method for the Controlled Silanization of Inorganic Nanoparticles

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