Advanced Materials Research Vol. 1022

Abstract: The effectiveness of the use of the synthesizable aluminosilicates in cement composites as the modifying additive, regulating the structurization and increasing the operational properties of cement systems is investigated. Nature of change of the index рН of a liquid phase of cement systems with the use of the synthesized aluminosilicates is studied. The information about a thermal emission kinetics at hardening cement composites are provided. One of the priorities of the modern building materials science is the development of efficient building materials with the high operational properties. The solution of this problem base on purposeful formation of the material structure as heterogeneous, multiphase system of the complex hierarchy. One of the directions of properties management of this system is the modification of their structure by nanosized particles [1, 2, 3].

Abstract: By analyzing metallogenic regulation of the deep skarn ore bodies in Laochang ore field,3D metallogenic features model was established with 3D visualization technology. With “the cubic predicting model” method, the major ore-controlling factors in deep include granites, strata, faults and chemical elements abnormal. We delineated prospect area and outlined ten targets through evidence weight method. Calculating the ore-containing probabilities and the quantities of mineral resources ,it realized prediction of mineral resources on quantity, position and probability. It is important for deep mineral exploration of Laochang ore field in Ge jiu.

Abstract: Material selection problem is important for the product design, and contains many influence factors. Thus it is actually a multi-attribute decision making (MADM) problems. The aim of this paper is to propose a new decision method based on the projection method for the material selection problem, in which attribute values expressed with interval numbers. An objective determining weights method is proposed according to coefficient of variation method. A practical example is used to illustrate the effectiveness and practicability of the proposed method.

Abstract: Material selection is an important step of product design process. There are often several influence factors in the grinding wheel abrasive material selection problem. This article will put forward a fuzzy grey relation analysis method to the grinding wheel abrasive material selection problem which influences factor (evaluation attribute) values expressed with triangular fuzzy numbers. The Coefficient of variation method will be adopted to determine the evaluation attributes’ weight. Finally, an example is used to analysis the effectiveness and feasibility of the proposed method.

Abstract: In this paper, the preparation of PANI was investigated via in secondary doping in-situ chemical oxidation polymerization. We use NH₂SO₃H as dopant, and HP₃O₄, H₂SO₄ or HCl as secondary dopant, respectively. The influencing of products conductivity was discussed about difference secondary dopant with changing concentration. The synthesized polymer composites are characterized by Fourier Transform Infrared Spectroscopy (FTIR) and four probe conductivity apparatus. The results show that in redoping process, the conductivity of PANI was 3.1746 S/cm when the concentration of HCl was 1.0 mol/L. Meanwhile, the thermal stability of PANI prepared with HP₃O₄ or H₂SO₄ as secondary dopant was better than HCl as secondary dopant.

Abstract: In this paper, the piezoelectric ceramic crisp, poor water resistance, resistance to external load capability is not strong lack of self-designed package more perfect a new type of "smart piezoelectric aggregate", to better address the PZT film resist unfavorable load , vulnerability and durability issues and other aspects; and further superior characteristics of piezoelectric smart sensing and drive integration of theoretical analysis, modeling, numerical calculations, mechanical analysis and experimental research; on this basis, based on the pressure and Experimental Research aggregate electric smart sensor / driver structural health monitoring and damage detection algorithm, the theoretical basis for the realization of the transition from the pilot study engineering applications to provide the experimental basis and technical support.

Abstract: A novel POSS hybrid nanocomposite hydrogels were synthesized by introducing water-soluble Oa-POSS into the PVA hydrogels. The mechanical properties are obviously dependent on the composition of gels. With the increase of Oa-POSS, the tensile strength and modulus increases significantly while the elongation break decreases. The gels exhibit higher compression strength than pure PVA hydrogels. This phenomenon is attributed to the effective entanglement of polymer chains around nanoparticles and enhanced interaction between PVA chains.

Abstract: The nanosized water-soluble Oa-POSS particles were added into the PNIPA hydrogels by in situ radical polymerization as a reinforce agent. The swelling behavior including swelling ratio and swelling/deswelling rate was determined by the composition of gels. With the increase of Oa-POSS, the swelling ratio decreases slightly, while the swelling rate and deswelling rate increases significantly, which is conducive to the application of this kind of gels.

Abstract: The nanosized Ov-POSS particles were added into the PDMAEMA hydrogels crosslinked by BIS in situ radical polymerization as a co-crosslinker. Both cross-linker makes a non-ignorable effect on the mechanical properties. With the increase of Ov-POSS, the mechincal properties were improved obviously comparing to the gels only crosslinked by BIS. The increased BIS is also conducive to the enhancement of tensile and compression strength of gels.