Báo cáo vật lý: "The Effect of Triethylene Diamine on the Properties of Waste Paper Foam Composites" ppsx

... and the interval of sputtering from ~ 3 ls to the end of the pulse. The shape of the voltage pulse waveform strongly influences the utilization of the sputtering within the pulse-on time. No sputtering ... experi- ments. The effect of the repetition frequency f r was investigated in detail. It was found that the increase of f r from 100 to 350 kHz le...

Ngày tải lên: 22/06/2014, 22:20

... available in the literature. 10,11 It is reported that the ratio of the silica source to the surfactant ratio and the pH of the synthesis gel can greatly influence the characteristics of the resulting ... amounts of C1 – ions. Therefore, for the partial dehydration of PEO units, the volume of the hydrophilic part of the micelle decreases....

Ngày tải lên: 07/08/2014, 14:20

... persamaan untuk menggantikan hubungan jenis Arrhenius telah diterbitkan. Ini adalah kerana pemalar tenaga keaktifan daripada persamaan itu bukan dalam bentuk asas. Persamaan baru ini mengekalkan ... sifat asal tenaga keaktifan dan kelikatan pada suhu tidak terhingga, dan ia merangkumi pemalar baru, iaitu kelikatan pada suhu sifar. Nisbah kelikatan pada suhu sifar dan kelikatan pada suhu...

Ngày tải lên: 07/08/2014, 14:20

... experimentally and estimates of the emulsion polymerisation mechanism of synthesis for the obtained core and shell. The determination of the polymerisation reaction kinetics of the styrene core and butyl ... is the polymerisation rate of the styrene core, and k is the rate reaction constant in the formation of the styrene core. 3.4 Mechanism...

Ngày tải lên: 07/08/2014, 14:20

... of Physical Science, Vol. 17(2), 151–159, 2006 151 EFFECTS OF Si, Al 2 O 3 AND SiC SUBSTRATES ON THE CHARACTERISTICS OF DBRS STRUCTURE FOR GaN BASED LASER N.M. Ahmed*, M.R. Hashim and ... number of layers. However, MOVPE process parameters for the GaN on alternative substrates need further optimization to reach the quality of GaN laye...

Ngày tải lên: 07/08/2014, 14:20

... The MAC (2.5% (w/w) Se /activated carbon) was prepared and can be applied to improve the quality of used coconut oil. Treatment of used coconut oil with MAC was effective in regenerating the ... AC. The pore size determination showed a distribution of 63.88% mesopore and 36.12% micropore. Several key quality indicators of the oil were determined for t...

Ngày tải lên: 07/08/2014, 14:20

... All the observations are interpreted in terms of grain-grain interaction and grain -field interaction that exist in the system. The field strength is found to enhance the structural formation in ... depending on the evolution of the aggregates with increasing strength of the external magnetic field. 26, 27 Under the effect of an external magnetic f...

Ngày tải lên: 07/08/2014, 14:20

... an increasing trend appeared with increasing mole fraction of aniline. The increasing trend of η revealed that the addition of aniline increases the effective molecular area. 14 The increased ... estimated using the standard relations. The results are interpreted in terms of molecular interaction between the components of the mixtures. Observed excess value...

Ngày tải lên: 07/08/2014, 14:20

... as all particles fall within the 200–300 nm range. Figure 4: Plot of conversion and particle size as a function of aging time. Table 2: Effect of aging time on the conversion of core-shell ... core-shell to feeding time) . The results of the conversion and particle size to the ratio of the feeding time are given in Table 1....

Ngày tải lên: 07/08/2014, 14:20

... production of waste paper foam. The differences in the liquefaction behaviour of the waste paper are due to their different chemical compositions. The compressive strength results for waste paper ... present the chemical composition of the organic and inorganic components of the waste paper. The addition of fillers, which serve to reinforce the fo...

Ngày tải lên: 07/08/2014, 14:20

... due the formation of covalent linkages and hydrogen bonds between the maleic anhydride and the hydroxyl group of the fibre. 8–14 This article reports the result of an investigation on the effect ... Polypropylene/Ethylene Propylene Diene Terpolymer/Kaolin Composites: The Effect of Maleic Anhydride- Grafted-Polypropylene H. Salmah * , C.M. Ruzaid...

Ngày tải lên: 07/08/2014, 14:20

... 10Effect of Filler Incorporation on the Fracture Toughness Properties 4. CONCLUSION The general behaviour of the tested materials showed that the dry samples provided higher values of fracture ... 6Effect of Filler Incorporation on the Fracture Toughness Properties Figure 1: Effect of filler content on...

Ngày tải lên: 07/08/2014, 14:20

... 25 Filler loading (phr) Elongation at break (%) Untreated Fibers Treated Fibers Figure 3: Effect of filler loading on the elongation at break of the LDPE/WHF composites with untreated and treated ... The elongation break is further reduced to less than 50% as the filler concentration increased to 15 phr and 25 phr. When the percentage of filler l...

Ngày tải lên: 07/08/2014, 14:20

... Global Solar Radiation Estimates on a Horizontal Plane 52 Malaysia is a country that has abundant solar energy. The annual average daily solar irradiations for Malaysia have a magnitude of ... Kajian ini mendapati bahawa model Collares- Pereira dan Rabl adalah merupakan model yang terbaik. Kata kunci: model Collares-Pereira dan Rabl, sinaran solar global, mod...

Ngày tải lên: 07/08/2014, 14:20

... various additives. Generally, the additives have a significant influence on the size and size distribution of resultant products. In relation to the normally prepared magnetite, the type of additives ... reduce the surface energy of the particles therefore making the resultant particles more stable. 4. CONCLUSIONS The size, size distribution and...

Ngày tải lên: 07/08/2014, 14:20