surface chemistry and modifications to carbon black

... Elastomers: Fundamentals and Applications Tonson Abraham and Colleen McMahan Carbon Black Wesley A Wampler, Thomas F Carlson, and William R Jones Copyright © 2004 by Taylor & Francis Silica and ... silica or carbon black Particle sizes can range from 0.5 to 10.0 Am Clays such as kaolin and bentonite can also be used in combination with silica or carbon black Particle sizes tend to range ... properties similar to those of silica and carbon black White rice husk silica contains around 95% SiO2, whereas black rice husk silica is approximately 55% silica and 45% carbon Residual carbon cannot...

Ngày tải lên: 27/06/2014, 06:20

... to multi-walled carbon nanotubes is influenced by both pulmonary surfactant lipids and surface chemistry Journal of Nanobiotechnology 2010 8:31 Submit your next manuscript to BioMed Central and ... ER, Castranova V: Exposure to carbon nanotube material: Aerosol release during the handling of unrefined single-walled carbon nanotube material Journal of Toxicology and Environmental Health-Part ... Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Materials Biology Interactions, St Gallen, Switzerland 2Institute of Anatomy, Division of Histology, University...

Ngày tải lên: 11/08/2014, 00:22

... 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 ... % carbon black loading 0.2 10 20 30 40 50 Square root of time, (h0.5 ) 60 0.6 % carbon black loading % carbon black loading % carbon black loading 0.2 0.0 0.8 0.4 % carbon black loading % carbon ... 0.6 % carbon black loading 0.6 Weight change, % Weight change, % 0.7 % carbon black loading % carbon black loading 0.5 0.4 0.3 (b) 0.5 0.4 0.3 0.2 % carbon black loading 0.2 (a) 0.1 % carbon black...

Ngày tải lên: 14/03/2014, 13:20

... Colloid and Surface Chemistry Applied Colloid and Surface Chemistry Richard M Pashley and Marilyn E Karaman © 2004 John Wiley & Sons, Ltd ISBN 470 86882 (HB) 470 86883 X (PB) Applied Colloid and Surface ... application of their studies to the real world and colloid and surface chemistry is an area that offers many opportunities to apply learned understanding to everyday and industrial examples There ... force and energy description of surface tension and surface energy It is easy to demonstrate that the surface energy of a liquid actually gives rise to a surface tension’ or force acting to oppose...

Ngày tải lên: 16/03/2014, 11:44

... the helix was bent to adapt the curved surface of CNT and extended along the unit vector, and finally the alpha-hliex turned to the coil-coil superhelix structure [Figs 14(b) and (d)] We performed ... structure in order to adapt the curved surface of CNTs The hairpin turn becomes the most unstable structure in the CNT which totally un‐ folds to random coil structure and sticks to the CNT walls ... Introduction Carbon- based nanoparticles and nanostructures, such as carbon nanotubes (CNTs), have drawn great attention in both academia and industry due to their wide potential applica‐ tions Owing to...

Ngày tải lên: 16/03/2014, 12:20

... that “monitors surface properties changing from the surface to the bulk (depth profiles)” and provides new insights into surface phenomena This method is direct and simple It is difficult to obtain ... ␣-helix and ␤-structures, were formed through intra- and intermolecular hydrogen bonding, depending on surface pressure and subphase pH They were deposited onto mica surfaces and subjected to surface ... Subsequently, Landman and Luedtke inverted the system to look at a gold (001) tip adhering to a nickel (001) surface [24] and noted a number of differences In this case the tip atoms jumped to the surface, ...

Ngày tải lên: 04/06/2014, 14:48

... exposed to carbon black (= xsm_exp) and the logit of proportion of previously exposed to crystalline silica among exposed to carbon black (= xpq_exp) in Analysis (Figure 3) The names correspond to ... G-estimation will be to no avail Thus, distortions due to possible survivor selection effects are not satisfactorily resolved We followed Steenland and Greenland [12] and applied like de Vocht and co-workers ... adjusted for two bias factors, smoking and prior exposures experienced before being hired at the carbon black plant However, Steenland and Greenland 2004 [12] were able to use a threelevel smoking...

Ngày tải lên: 20/06/2014, 00:20

... of water and carbon black nanofluids It can be seen that both the water and carbon black nanofluids have perfect absorption in the wavelength ranging from 1,400 to 2,500 nm, and carbon black nanofluids ... China To obtain stable nanofluids, the original carbon black powder was pretreated as follows: 15 g of original carbon black powder and 300 ml 30% H2O2 were added into a round-bottomed flask and ... from 200 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...

Ngày tải lên: 21/06/2014, 02:20

... and lactones at higher temperature; carboxylic anhydrides originate both CO and CO2; phenols and carbonyl/quinone groups produce CO [10,13,14] Figure shows the TPD spectra of the CNT before and ... due 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 ... 1011 a) 50 CNTs CNTox CNTox400 CNTox900 10 b) -PVDF 0.1% 0.2% 0.5% 40 105 30 ' Volume Resistivity / m Figure SEM images for the PVDF@ CNTox400 composites (for 0.2% CNTox400): (a) surface image showing...

Ngày tải lên: 21/06/2014, 04:20

... carbon black was pressed to a carbon rod and put into an arc-discharge plasma instrument After treating for about h, a black powder with loose structures was obtained The as-prepared carbon black ... product of SiO2 and the residual carbon To validate the existing of impurities, high-temperature oxidation and hydrofluoric acid (5%) treatment were used to get rid of the residual carbon and SiO2, ... rapid, and low-cost method to synthesize massive b-SiC nanowires by a high-frequency induction heating procedure A ball-milled mixture of SiO and carbon black was used as source materials The carbon...

Ngày tải lên: 22/06/2014, 01:20

... that “monitors surface properties changing from the surface to the bulk (depth profiles)” and provides new insights into surface phenomena This method is direct and simple It is difficult to obtain ... ␣-helix and ␤-structures, were formed through intra- and intermolecular hydrogen bonding, depending on surface pressure and subphase pH They were deposited onto mica surfaces and subjected to surface ... Subsequently, Landman and Luedtke inverted the system to look at a gold (001) tip adhering to a nickel (001) surface [24] and noted a number of differences In this case the tip atoms jumped to the surface, ...

Ngày tải lên: 29/06/2014, 09:21

... Publications and Presentations VII IX XIII XV Chapter Introduction 1.1 Surface Chemistry and Heterogeneous Catalysis 1.2 Surface Chemistry and Chemical Vapor Deposition 1.3 Surface Chemistry and Chemical ... of surface- bound acetate that is stable up to 380K HfacH deprotonates and binds to clean Ni(111) with its OCCCO plane parallel to the surface at 120K, while on O precovered Ni(111), the deprotonated ... as to avoid new contaminant incorporation 1.5 Surface Chemistry of Oxygenates and the Effects of Surface Atomic Oxygen The reactions of O-containing species at metal surfaces are relevant to...

Ngày tải lên: 17/09/2015, 17:19

... Medicinal Chemistry and Pharmacological Potential of Fullerenes and Carbon Nanotubes CARBON MATERIALS: CHEMISTRY AND PHYSICS A comprehensive book series which encompasses the complete coverage of carbon ... based on carbon nanomaterials has been illustrated Few chapters are dedicated to toxicity and to the use of nanomaterials as pollutant probes The debate on fullerene and CNT toxicity is open and reports ... must be achieved prior to functionalisation and construction of nanodevices In order to be used in biology and medicinal chemistry, carbon nanotubes need to be purified and soluble in physiological...

Ngày tải lên: 17/02/2014, 05:20

... constant of about 0.02 N/m to avoid additional damage to the sample surface Results and discussion Two scratch directions, forward and backward, were selected to scratch the Si surface As illustrated ... analysis and interpretation of data, drafting of the manuscript and revisions And they contribute equally to this paper JFZ and WSJ participated in language modification AT participated in analysis and ... a ) and the maximum roughness (Rmax) of the sample surfaces calculated from 2.0 × 2.0 μm2 topographic AFM images were less than 0.14 and 1.19 nm, respectively Scratch experiments Page of and...

Ngày tải lên: 21/06/2014, 00:20

... charecteristic signals at δ = 3.18 and 3.12 ppm in 1H NMR, and δ = 69.2 and 52-53 in 13C NMR are assigned to the -CH proton and carbon of cyclohexane combined with -OH and N groups, respectively Elemental ... band) and 1585 cm -1 (G band) [22] The D band is attributed to a disordered graphite structure or sp -hybridized carbons of the nanotubes, whereas the G band corresponds to a splitting of the E ... of semiconductor and insulator nanoparticles at the surface of covalently modified multiwalled carbon nanotubes Chem Mater 2004, 16:3780 16 Kolb HC, Finn MG, Sharpless KB: Click chemistry: diverse...

Ngày tải lên: 21/06/2014, 05:20

... to the total number of carbon atoms detected 123 238 surface could thus be raised from 40 to 54% as shown in Table The thick amorphous carbon can prevent defects from further forming on the surface ... characteristic peaks are observed and attributed to the D and G bands The spectra have been normalized with respect to the G band for comparison The intensity of the D band, at frequencies around 1,344 ... attributed to sp3 carbon [19–21, 25] The peaks at 286.2, 287.2, and 288.9 eV correspond to hydroxyl, carbonyl (or ether), and carboxyl (or ester) groups, respectively A peak attributed to p–p* shake-up...

Ngày tải lên: 22/06/2014, 01:20

... uptake and storage of carbon Trees and plants, for example, absorb sequestration carbon dioxide, release the oxygen and store the carbon Fugitive Substances (gas, liquid, solid) that escape to the ... Thisdocumentsummarizesfindingsandconclusionsoftheassessmentreport:Integrated AssessmentofBlackCarbonandTroposphericOzone.Theassessmentlooksintoallaspects ofanthropogenicemissionsofblackcarbonandtroposphericozoneprecursors,suchas ... Assessment of Black Carbon and Tropospheric Ozone Asia and Pacific are projected to increase, resulting in additional crop yield losses (Figures and 8) In South, West and Central Asia, both health and...

Ngày tải lên: 28/06/2014, 19:20

... (KCl)x(UCl4)y and AgClxBry,389a CdI2 and ThCl4,396 CdCl2,396,397a TbCl3,397a TiCl and PbI2,397b CoI2,398 LaCl3 and LaI3,399 KI,389d,397a,400 ZrCl4,401 AgClxI1-x,402 BaI2,403 and MoCl5 and FeCl3.404 ... Tagmatarchis, N.; Pantarotto, D.; Bianco, A.; Briand, J.-P.; Prato, M Chem Commun 2002, 3050 (67) Pantarotto, D.; Partidos, C D.; Graff, R.; Hoebeke, J.; Briand, J.-P.; Prato, M.; Bianco, A J Am ... (68) Pantarotto, D.; Partidos, C D.; Hoebeke, J.; Brown, F.; Kramer, E.; Briand, J.-P.; Muller, S.; Prato, M.; Bianco, A Chem Biol 2003, 10, 961 (69) Pantarotto, D.; Briand, J.-P.; Prato, M.; Bianco,...

Ngày tải lên: 06/08/2014, 13:22

... EcoRV and HindIII digested the PCR products and produced three and four bands, respectively Five of the 17 amplicons resulted in patterns similar to Fig 1A through DraI, EcoT14I, EcoRV, and HindIII ... from Jeju black cattle were related to T orientalis (Essex) and T buffeli (Warwick) (Fig 3) Discussion Fig Continued types C, I, and B Type C was identified in 20 of 35 blood samples, and type ... major biological vector of T sergenti in Korea and Japan, Haemaphysalis longicornis, has also been shown to transmit B ovata [2] and B caballi experimentally [16] Some investigators have suggested...

Ngày tải lên: 07/08/2014, 20:23