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51.
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53.
Soheila Lashgari A. Aref Azar Somayeh Lashgari Somayyeh Mohammadian Gezaz 《乙烯基与添加剂工艺杂志》2010,16(4):246-253
Waste poly(ethylene terephthalate) (W‐PET)/acrylonitrile‐butadiene‐styrene (ABS) blends were prepared with a variety of compositions at several rotor speeds in an internal mixer, replacing ABS with different maleated ABS (ABS‐g‐MA) samples in compatibilized blends. A Box–Behnken model for three variables, with three levels, was chosen for the experimental design. ABS‐g‐MA‐based samples exhibited finer particles with a more uniform particle size distribution than ABS‐based ones, as a consequence of the compatibilizing process. Rheological results implied a greater elastic nature for compatibilized blends which increased in the presence of more ABS content; the same trend was observed for complex viscosity. With increasing ABS‐g‐MA or MA concentration, more shear thinning behavior was observed similar to that of ABS; whereas the uncompatibilized blends showed Newtonian behavior like that of W‐PET. The observed shifting in TgW‐PET and TgABS obtained from dynamic mechanical thermal analysis confirmed the good compatibility in W‐PET/ABS‐g‐MA blends in contrast with that in ordinary W‐PET/ABS blends. The mechanical properties were measured and modeled versus the various factors considered in a response surface methodology. The experimental data found a good fit with the obtained equation models. The mechanical properties of the compatibilized blends showed a large positive deviation from the mixing rule, while the uncompatibilized samples had lower properties, even compared to those predicted by the mixing rule. J. VINYL ADDIT. TECHNOL., 2010. © 2010 Society of Plastics Engineers 相似文献
54.
T. F. Grigor’eva L. N. D’yachkova A. P. Barinova S. V. Vosmerikov S. A. Kovaleva N. Z. Lyakhov 《The Physics of Metals and Metallography》2013,114(1):22-26
Mechanocomposites composed of tungsten and metals interacting with it, such as nickel and iron, have been studied; a composition, structure, density, and strength of samples obtained at the stages of mechanical alloying, compacting, and sintering have been considered. 相似文献
55.
I. V. Gervas’eva Yu. V. Khlebnikova D. P. Rodionov E. S. Belosludtseva V. A. Milyutin T. R. Suaridze 《The Physics of Metals and Metallography》2013,114(2):171-179
The paper deals with the study of the process of the formation of the primary recrystallization texture in Ni95.3Mo4.7 and Ni48.8Fe51.2 nickel alloys during annealing after deformation by rolling to large reduction. The electron backscatter diffraction method is used to show the effect of the temperature and the heating rate during annealing on the structure and texture in alloys that differ in the temperature of the beginning of primary recristallization. The majority of attention is focused on investigating the possibility of estimating the temperature range of primary recrystallization from the dilatometry anomaly on the temperature dependence of the thermal expansion coefficient. Variations in the relief of the rolled tapes after recrystallization are studied. 相似文献
56.
A. I. Amirova E. V. Belyaeva E. B. Tarabukina N. A. Sheremet’eva A. M. Muzafarov A. P. Filippov 《Polymer Science Series C》2010,52(1):70-78
Fractions of hyperbranched polycarbosilane modified with fluorine-containing end groups are studied by the methods of molecular hydrodynamics and optics in dilute solutions in hexafluorobenzene, methyl tert-butyl ether, chloroform, tetrahydrofurane, and toluene. The results are compared with the data available for the original polymethylallylcarbosilane. The incorporation of fluorinated groups leads to a change in the hydrodynamic parameters of the hyperbranched polymer. In this case, in thermodynamically better solvents, the patterns of the molecular-mass dependence of intrinsic viscosity for fluorinated and original hyperbranched polycarbosilanes coincide since the macromolecules of the polymers under comparison are characterized by similar shapes and almost the same hydrodynamic sizes. In a thermodynamically worse solvent (toluene), the above-mentioned changes in hydrodynamic parameters and the character of the molecular-mass dependences are related to compaction of macromolecules and a decrease in their shape asymmetry. This tendency is probably associated with the selectivity of this solvent with respect to the fluorine atom. 相似文献
57.
Zinov’eva I. V. Fedorov A. Ya. Milevskii N. A. Zakhodyaeva Yu. A. Voshkin A. A. 《Theoretical Foundations of Chemical Engineering》2021,55(4):663-670
Theoretical Foundations of Chemical Engineering - A choline chloride–sulfosalicylic acid deep eutectic solvent (DES) is proposed for dissolving the oxides Co(II), Cu(II), Zn(II), Fe(III),... 相似文献
58.
Lotarev S. V. Lipat’eva T. O. Lipat’ev A. S. Naumov A. S. Shevyakina D. M. Sigaev V. N. 《Glass and Ceramics》2021,77(11-12):409-411
Glass and Ceramics - It is demonstrated that spatially selective crystallization of lithium-niobium-germanate glasses with the compositions (mol.%) 25Li2O?30Nb2O5?45GeO2 and... 相似文献
59.
Golubev N. V. Ignat’eva E. S. Maurus A. A. Ziyatdinova M. Z. Lopatina E. V. Lorenzi R. Paleari A. Sigaev V. N. 《Glass and Ceramics》2021,77(11-12):415-418
Glass and Ceramics - The influence of Al2O3 as an additive and the heat-treatment regime on the luminescence spectra of gallate glass-ceramics was investigated. It is shown that its luminescence... 相似文献
60.
L. S. Babadzhanov M. L. Babadzhanova N. S. Bezrukova T. K. Prokop’eva P. A. Kharin 《Measurement Techniques》2009,52(3):250-253
Technological features of the manufacture of sets of thickness gauges for use in measuring the thickness of nickel coatings
on the D16T aluminum alloy up to 100 μm with error 0.12–0.63 μm (0.4–0.6%) sufficient for inspection of thickness gauges with
standard error at least 1% are presented.
Translated from Izmeritel’naya Tekhnika, No. 3, pp. 22–23, March, 2009. 相似文献