the effect of carbon black on rubber properties
Rubber Compounding Chemistry and Applications ppt
... understand the effects of mesh size and concentration on the rubber properties The following paragraph on the effects of concentration and mesh size on rubber properties (46,47) is based on the Cryofine ... information on gel (T-95), is defined as the response to a cessation of sudden deformation when the rotor of the Mooney viscometer stops The stress relaxation of rubber is a combination of both ... cutting of the latex vessel creates a hydrostatic pressure gradient along the vessel, with consequent flow of latex through the cut In this way a portion of the contents of the interconnected...
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báo cáo khoa học: "The adsorption of biomolecules to multi-walled carbon nanotubes is influenced by both pulmonary surfactant lipids and surface chemistry" doc
... substantial contributions to the analysis and interpretation of the data HFK and PG made substantial contributions to the analysis and interpretation of the data BY carried out the synthesis of functionalized ... and the characteristics of the surrounding media Among others (like the crystallinity or the shape), the surface functionalization is considered to be one of the most important characteristics of ... of the National Academy of Sciences of the United States of America 1986, 83:5086-5090 59 Shen JW, Wu T, Wang Q, Kang Y: Induced stepwise conformational change of human serum albumin on carbon...
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Báo cáo " Diffusion behaviour of corrosive solution environments in carbon black filled modified polyethylene linings " doc
... 0.3 0.2 0.6 0.5 0.4 0.3 % carbon black loading % carbon black loading % carbon black loading 0.1 (b) 0.7 % carbon black loading 0.2 % carbon black loading % carbon black loading 0.1 0.0 0.0 10 ... comparison with those of temperature The effect of carbon black constituent on mechanism of penetration of water into the polymers would be proposed as the following: water diffuses through the polymer ... 60 0.6 % carbon black loading % carbon black loading % carbon black loading 0.2 0.0 0.8 0.4 % carbon black loading % carbon black loading 0.1 1.0 70 0.0 10 20 30 40 50 60 70 Square root of time,...
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Applied Colloid and surface chemistry
... 4.1: Determination of micelle ionization Emulsions and Microemulsions The conditions required to form emulsions and microemulsions Emulsion polymerization and the production of latex paints Photographic ... comes off the printer Both the pore structure and pore wettability control the liquid invasion of the coated layer and therefore the final destination of dyes Dispersion and stability of the colloidal ... equation which allows the surface tension of the liquid to be obtained from the measured maximum force on the rod, the known density of the liquid (r) and the radius of the cylinder This equation...
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Surface Chemistry ppt
... favored at the carbon carbon double bonds in these positions [Zhao et al., 2004] The EB irradiation procedure results in the formation of carboxylic moieties, preferentially on the end caps of the CNT, ... irradiation of the CNTs can be created more active bonding sites on the surface of the nanotubes Among them, electron beam (EB) irradiation is potent to induce the uniform and consistent modification ... ginning of the simulations, the alanine chain was put in the middle of the CNT along the tube direction [Figs 14(a) and (c)] To our surprise, in just a few nanosceonds of the simula‐ tions, the entire...
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nano-surface chemistry, 2002, p.674
... monolayers to the Fe surface The effect of the impurity atoms were twofold: On one hand they pushed the surfaces apart, thus weakening the Fe/Al bonds; on the other, they formed bonds across the ... Kelvin-equilibrium conditions The derivations of the foregoing equations have been based on the principles of thermodynamics and the macroscopic concepts of density, surface tension, and radius of curvature They ... and partial wetting of the sides of the tip Continued reduction of the tip–sample distance induced drainage of the second layer of molecules under the tip and the pinning of the final layer Subsequently,...
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báo cáo hóa học: " Bayesian bias adjustments of the lung cancer SMR in a cohort of German carbon black production workers" pdf
... candidates for the distribution of the proportion in the cohort, one based on an application of CAREX [29,30] which is a computer assisted information system for the estimation of the numbers of workers ... candidates for the distribution of p in the cohort, one based on case-control information [8] about smoking and one based on cohort information [5] The proportion of subjects acting as controls and ... that the results based on the expert’s assessments of prior silica dust exposure among the carbon black workers changed only slightly when Page of 14 Figure Trace plots of logit of proportion of...
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báo cáo hóa học: " Thermal properties of carbon black aqueous nanofluids for solar absorption" pot
... of carbon black nanofluids Optical properties of carbon black powder and nanofluids Rheological behaviors of carbon black nanofluids Figure shows the UV-Vis-NIR absorption spectra of carbon black ... distributions of carbon black nanofluids The particle size of the carbon black nanofluid is about 50 to 500 nm and has a mean size of 190 nm The agglomeration of the nanoparticles and the hydrodynamic ... to 2,500 nm The carbon black powder was put on a sample stage, and the absorption spectra were detected The carbon black nanofluids of Preparation of nanofluids Commercial carbon black powder...
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Báo cáo hóa học: "Effect of the carbon nanotube surface characteristics on the conductivity and dielectric constant of carbon nanotube/poly(vinylidene fluoride) composites" doc
... to the reduction of the surface conductivity of the CNTs due to the oxidation process [8], and is similar for all the functionalized composites Further, the increase of surface area due to the ... effect of surface modifications of multi-walled CNTs on the electrical response of CNT/PVDF nanocomposites has been investigated The main effect of oxidation is a reduction of the composite conductivity ... the nanocomposites prepared with the different functionalized CNTs The reduction of the electrical surface conductivity of the CNT due to the oxidation process, together with an increase of the...
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Báo cáo hóa học: " SiC Nanowires Synthesized by Rapidly Heating a Mixture of SiO and Arc-Discharge Plasma Pretreated Carbon Black" ppt
... chance for the reaction with SiO vapor The inset in Fig displays the corresponding EDX spectrum, indicating only two elements (carbon and oxide) existed in the pretreated carbon black The characteristic ... reaction is in the ascendant, SiC can generate and provide to the nanoparticles Since there exist sufficient silica and carbon atoms in the reaction atmosphere, the precipitation (separate out) of ... distribution of the as-synthesized SiC nanowires [24, 25] The CO gas is hard to be got rid of from graphite crucible in our experiment, and therefore, leads to the distribution of the diameter...
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Nano-Surface Chemistry ppt
... monolayers to the Fe surface The effect of the impurity atoms were twofold: On one hand they pushed the surfaces apart, thus weakening the Fe/Al bonds; on the other, they formed bonds across the ... Kelvin-equilibrium conditions The derivations of the foregoing equations have been based on the principles of thermodynamics and the macroscopic concepts of density, surface tension, and radius of curvature They ... and partial wetting of the sides of the tip Continued reduction of the tip–sample distance induced drainage of the second layer of molecules under the tip and the pinning of the final layer Subsequently,...
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Surface chemistry of organic carbonyl compounds and their derivatives on ni (111
... through the O lone pair electrons The second configuration involves the interaction of the carbonyl π* orbital with backdonation from the metal, plus π or σ-electron donation from the carbonyl group.66,67 ... ethylene which often adsorbs with the C=C bond axis parallel to the metal surface and bond via a combination of donation of π-electron density to the metal and back donation from the filled metal ... inset shows the dominance of the normal component of the field of the surface arising from the p component (from Ref 12) 35 Figure 2.5 The image dipole picture of the metal’s screening of a dipole...
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Tài liệu Medicinal Chemistry and Pharmacological Potential of Fullerenes and Carbon Nanotubes docx
... without affecting the electronic network of the nanotubes, noncovalent functionalisation of CNTs is considered a very promising method in the fields such as the preparation of functional and composite ... water The use of surface plasmon resonance technique permitted the determination of affinity and the corresponding equilibrium association constant results of 7.74.108 M−1, indicative of a good ... elements The filler is added contextually to the carbon source, during the production procedure The processes of opening, filling, and the subsequent closure of the cage after fullerene production...
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Báo cáo hóa học: "Nanopatterning on silicon surface using atomic force microscopy with diamond-like carbon (DLC)-coated Si probe" pptx
... behavior of the relationship between groove dimension and tip force results from the nonlinear increments of the cross-section area of the tip Experiments have been conducted to study the effect of ... at μm/s of the scratching speed and 10 μN of the applied normal force The cross-section profiles are V-shaped in both scratch conditions However, the depth of the groove generated in the forward ... as the angle between the directions of scratching and cutting face In the case of the backward direction, the tip scratch face is perpendicular to the scratch direction, i.e., the inclination...
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Báo cáo hóa học: " Synthesis of multi-walled carbon nanotube/ polyhedral oligomeric silsesquioxane nanohybrid by utilizing click chemistry" pptx
... was used to confirm the functionalization of MWNTs X-ray photoelectron spectroscopy (XPS, ESCSA 2000) was used to analyze the surface composition of the nanotubes Observation of the surface morphology ... carbons of the nanotubes, whereas the G band corresponds to a splitting of the E g stretching mode of graphite, which reflects the structural intensity of the sp2-hybridized carbon atoms The increase ... [20] The azidation of the POSS molecule was also confirmed by comparison of the IR spectrum of pure POSS with that of POSS (POSS-N3) with azide-functionality A new peak at 2107 cm -1 corresponding...
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Báo cáo hóa học: " Effects of Gas Composition on Highly Efficient Surface Modification of Multi-Walled Carbon Nanotubes by Cation Treatment" pptx
... reactions on the surface of the tubes The ratio of H2 to O2 is critical to the process because it directly correlates with the composition of the generated cations In this study, the effect of gas ... be because the ion bombardment under this gas condition can heavily etch the surface of the nanotubes to the extent that the concentration of amorphous carbon coated on the Table The MWCNT specimen ... amorphous carbon on the surface of the nanotubes Specifically, by using this gas condition to conduct the plasma treatment, the highest concentration of 31.1% (after exposure) of oxygenated functional...
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Integrated Assessment of Black Carbon and Tropospheric Ozone docx
... patterns such as the Asian monsoon, affecting the livelihoods of millions of people Black carbons darkening of snow and ice surfaces increases their absorption of sunlight, which, along with atmospheric ... sectors and therefore would not necessarily result in significant reductions in emissions of black carbon or the ozone precursors methane and carbon monoxide Significant reduction of the short-lived ... decreases the risk of changes in weather patterns and amplification of global warming resulting from changes in the Arctic Regional benefits of the black carbon measures, such as their effects on snow-...
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Chemistry of Carbon Nanotubes phần 3 potx
... Chemistry of Carbon Nanotubes of translocation, a prerequisite for nanoscale separation devices 5.3 Encapsulation of Liquids A particular area of interest is the use of carbon tubes in nanofluidics ... oxidation, and the oxide was inserted in the cavity of the tubes, though there was great uncertainty about the oxidation state of the chromium in the peapod structure Reaction of SWNT with organic ... The authors immersed CNT in molten iodine and observed the peapod structures by TEM One of the most exotic applications of CNT filled with a molten metal was the preparation of miniaturized thermometers...
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Báo cáo khoa học: "Antigenic diversity of Theileria major piroplasm surface protein gene in Jeju black cattle" ppt
... infections of Theileria spp based on MPSP alleles In addition, there are allelic variants in Jeju Therefore, further studies of the tick vector, the antigenic difference between variants of each ... suggest that the differential resistance is based on the breed and host immune response Further studies of the resistance and adaptation of Jeju black cattle in Jeju compared with other breeds ... black cattle (JBC)-1, 2−Theileria isolate from Jeju black cattle Results The hematological values of all the samples were within the normal range (data not shown) On microscopic examination of...
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