Advanced Materials Research Vols. 233-235

Abstract: Satraplatin is a platinum coordination with antitumour activity, which is the first platinum-based antitumour drug administrated by oral route. The phase III clinical trial used in the treatment of patients with hormone-refractory prostate cancer of Ssatraplatin has been finished. Its prepararation method was introduced in this paper, and its chemical structure was identified by using the modern apparatus analysis means such as elemental analyses, mass spectrum, infrared spectrum and nuclear magnetic resonance spectrum. The results showed that its composition and structure were consistent with the theoretical one

Abstract: A new oxygenated fuel, methyl 2-methoxy-propyl carbonate, designed according to the fuel design theory and the special burning performance of diesel engine, was synthesized by using propylene glycol monomethyl aether, carbonic acid dimethyl ester, and metal sodium. The optimum transesterification reaction conditions were gained as: n(propylene glycol monomethyl aether):n(carbonic acid dimethyl ester)=2:1, w(catalyst with a metal sodium) = 2% total amount of materials, reaction time 5h, and temperature keeping at 85°C. Yield of methyl 2-methoxy-propyl carbonate 75.0%. By checking up physicochemical properties and making diesel engine test of the fuel blend, which testified that the oxygenated fuel was a kind of available substitution for petroleum.

Abstract: Composite material has extensive application in aeronautics, astronautics and other fields due to the properties of high intensity, light weight and anti-fatigue. So controlling and rapid repairing of damaged composite material has become one of the most popular research subjects. In this paper, the common composite material for aircraft is used as test-object; The light wave of 675nm transmitted by optical fiber is used as repairing light source; special repairable reagent which can be stimulated by the light is adopted, and by the light measure technology, the effect of the vibration property in the composite material is studied by light repairing after the damage of the composite material. Based on this study, the results and analysis are shown. The research result shows that this technology is feasible in the repair of composite material and offers an experimental basis on instant test and controlling for composite material.

Abstract: A simple and rapid high performance liquid chromatography (HPLC) assay was developed to identify and measure the stigmasterol in jatropha seed oil. The stigmasterol was isolated with a good selectivity by HPLC employing reversed phase C18 columns. The components were separated by mobile phase of methanol-water (99/1, v/v) and detected at 202nm. The quantitation of the stigmasterol was reproducible and the method relative standard deviation is 1.6%. The mean analytical recovery was 97.0%．

Abstract: Solvent extraction technique was applied for the extraction of β-Sitosterol from jatropha seed oil．The optimum conditions for the lab scale extraction were obtained at 30ml solvent, 0.05g magnesium power, ratio of hydrochloric acid to zinc chloride of 1/1.75 (ml/g) and tetrahydrofuran as a solvent. Under the optical conditions, the yield of β-sitosterol was up to 3.27mg/g.

Abstract: This paper studied the green finishing methods on cotton fabric. It discussed the effects of wear performance with enzyme treatment and chitosan finishing on the cotton fabrics. Cotton fabrics were treated by amylase LA, the soft, smooth of the fabric improved and the tensile strength decreased. When the temperature of amylase LA in 30°C ~ 70°C, its activity and starch slurry removal rate increased with the temperature increasing. Above 70°C, activity decreased, so the temperature herein amylase optimum treatment temperature is 70°C. After the enzymatic treatment, and then by chitosan finishment, the results show that after treating, the hand, anti-wrinkle, anti-bacteria and other performance of the fabrics have greatly improved.

Abstract: Particle-like MgO powders were first prepared using LiCl as reaction medium, MgCl₂·6H₂O and CaCO₃ as reaction materials. Soaked them by PEG and PEG-EDTA solution, different Mg(OH)₂ precursors were formed, which morphologies were fiber-like via PEG and tetrahedron-like via PEG-EDTA . Re-heated at 600 , Mg(OH)₂ was decomposed to MgO. Decomposed by fiber-like Mg(OH)₂, MgO powders were chain-like, with 0.1-0.3 µm in diameter and 20-100 in length-to-width ration. On the other side, decomposed by tetrahedron-like Mg(OH)₂, MgO powders were layer rock-like with vertex defected, which brim was up to 1.5 µm in length.

Abstract: High performance fiber reinforced composites have a long history and wide usage in aerospace, sports, military, etc. In this paper applications of composites on textile machinery were elaborated, such as carbon-fiber reinforced plastic (CFRP) guide bar, composite rapier belt and rapier head in rapier loom, nylon shuttle, carbon fiber composite heddle frame for high-speed looms, transmission shaft, needle bed, conveyor belts. It indicated that the composites can improve the performance obviously. Along with the rapid development of textile, fiber reinforced composites are continuous replacing the traditional materials as cast iron, steel and aluminum textile machine parts, But the applications of composites on textile machinery are still in the initial stage. High price is the major obstruction factor for its development. Through improving the level of automation technology, reducing producing cost, rational design of structure, the producing cost can be sharply reduced, which is also benefit for textile machinery development.

Abstract: A dendritic type europium complex/silicone rubber has been prepared. According to the luminescence spectrum, the Judd-Ofelt theory was adopted to calculate the intensity parameters Ω₂ and Ω₄. The total radiative transition rate (640.1 s^-1), radiative lifetime (1.562 ms) and the stimulated emission cross-sections (46.19×10^-22 cm²) of the ⁵D₀ exciting state have been evaluated. Analysis reveals that the europium (III) chelating polymer is promising for use in optical devices.

Abstract: In this paper, a single parameter family of hybrid ellipsoid-dumbbell models is proposed for the hydrodynamic behavior of a polymer molecule in dilute solutions. The model allows for rotation and partial deforming of molecule, but not for bending. The periodic fluctuations and shear thinning have been obtained by numerically integrating the equations of motion over a wide range of the dimensionless parameter, a ratio of polymer-spring and solvent-viscosity forces. The results show that the rotation frequency decreases with the increasing shear rate because of the deformation effect, which increase the stability of flow. The effects of polymer additives on flow viscosity and its application are also discussed. These results will be significant for drag reduction mechanism.