Báo cáo vật lý: "Thermo-mechanical and Light Transmittance of Silica Diffusant Filled Epoxy Composites" docx

... Silica Diffusant Filled Epoxy Composites 96 Table 1: EEW and viscosity of liquid epoxy, DGEBA, cycloaliphatic epoxy and novolac epoxy. Epoxy resin EEW Viscosity at 25°C (cP) Liquid epoxy ... Thermo-mechanical and Light Transmittance of Silica Diffusant Filled Epoxy Composites Lim Wei Chin 1 , Huong Ling Hung 2 and Chow Wen Shyang 1* 1 Schoo...

Ngày tải lên: 07/08/2014, 14:20

... interaction between the clay and the polymer. 9 The surface of the MMT is commonly modified with a cation exchange technique to expand the basal spacing and make the layered silicate compatible with ... loading of silane-treated OMMT increased. In addition the flexural modulus of E/GF/Si-15/OMMT is approximately 4.98 GPa, which is an increase of 13%. This result is due to the...

Ngày tải lên: 07/08/2014, 14:20

... used as a source of heat energy for cooking. 7 Due to the growth of the importance of oilseeds in the national economy of Sudan, the high demand to look for a new source of oil and the sufficient ... 2.1 Seed Characteristics and Composition Seed color was determined visually. One hundred seeds of each type were picked randomly and weighed, dehulled and then, hull...

Ngày tải lên: 07/08/2014, 14:20

... phase of standard BaNd 2 Ti 5 O 14, ICDD No 33–136. The lattice parameters of the XRD show a = 12.20 Å, b = 22.35 Å and c = 3.84 Å. However, detailed observation shows the presence of extra ... lengths of the rod-like grains were of 2.0 to 2.5 μm. As the temperature was increased to 1300 o C, the grains became slightly larger, with diameters of 1.0 to 1.2 μm. The lengths o...

Ngày tải lên: 07/08/2014, 14:20

... between ketones and alkanols. The subsequent formation of new hydrogen bonds between the proton acceptor oxygen atoms of the group of DMF and the proton of the – OH group of 1- alkanols 17 ... subsequent formation of (new) H-bonds [C=O … H–O] between the proton acceptor oxygen atom (with lone pair of electrons) of the C=O group of DMF and the proton of the OH g...

Ngày tải lên: 07/08/2014, 14:20

... of Si, SiO 2 and Ge for increasing transmittance of Si as active medium in the far red region of 720–750 nm. This paper reports the design and simulation of the transmissivity of single and ... conclusions: the transmissivity of ~ 720–750 nm emission of silicon is affected significantly by the single and multilayer thin film coatings of Ge, SiO 2 and Si/SiO 2 /...

Ngày tải lên: 07/08/2014, 14:20

... reveal that a double molar ratio of urea and an equimolar of oxalic acid produced PEILs. PEILs were successfully formed by using combinations of hydrochloride salts and complexing agents. HCl acts ... systems. The physical and chemical properties of PEILs are congruent to those of the traditional ILs, but the range of structures for PEILs is likely to be different from t...

Ngày tải lên: 07/08/2014, 14:20

... in the center of fractal followed by a series of nested squares of increasing sizes, l (length of the box). Next, the micrograph is manually digitized using "ones" and "blanks" ... presence and absence of the particle. Then, the number, N (ones), of particles within each square of different sizes, l, are counted. The fractal dimension, D is obtained f...

Ngày tải lên: 07/08/2014, 14:20

... the bulk (grain) property of the material arising due to the parallel combination of bulk resistance (R b ) and bulk capacitance (C b ) of the material. The capacitance of the sample is about ... Figure 9 shows the plots of real part of complex permittivity of BiTaO 4 ceramics as a function of sintering temperature. The ε r increases appreciably with the increase of...

Ngày tải lên: 07/08/2014, 14:20

... Weight % of ESP = ESP x 100% MA (1) Molarity of PANI-NMP = VS x 100% Mw (2) where ESP is the amount of ESP, MA is the amount of matrix, Mw is the Mw of the eggshells and VS is ... adsorbate molecule and the use of an adsorption model allowed for the determination of the total surface area of the material. 3. RESULTS AND DISCUSSION 3.1 Brunaue...

Ngày tải lên: 07/08/2014, 14:20