Advanced Materials Research Vol. 427

Abstract: Research progress of thermal insulation materials was briefly reviewed and discussed based on the classification of obstructive insulation, reflective insulation, and radiative insulation materials. Research orientations related to thermal insulation materials were also proposed.

Abstract: Activated water is beneficial to healthcare due to its changes of physicochemical properties compared to ordinary water. Some related researches on activated water are reviewed in this paper. Take magnetized water, mineral and ceramic activated water and electrolyzed water for examples, activating materials and technologies are briefly introduced. Then, mechanism of activation devices and activated water are summarized and discussed. Finally, mechanism of activated water on biological growth is analyzed by comparing their different properties.

Abstract: Surfactant-templated synthesis of ordered nanostructured materials attracts more and more attention. In this paper, ordered nanostructured Fe₃O₄ powder was synthesized via a facile reflux method in ethanol-water media using sodium dodecyl sulphonate (SDS, C₁₂H₂₅SO₃Na) as template. XRD and VSM were used to characterize the ordered nanostructure, inorganic phase and magnetic properties. Results show that Fe₃O₄ powder is of an ordered nanostructure of 7.6 nm which was detected by SAXRD and the inorganic phase is composed of cubic Fe₃O₄ nanocrystals. VSM analysis shows that the ordered nanostructured Fe₃O₄ exhibits a two-phase structure and a soft magnetic property with a saturation magnetization of 40emu/g.

Abstract: The title compound (C₇H₉ClN₂, Mr = 156.61), an imidazolium ionic liquid with alkynyl, was synthesized by an improved method in high yield. FT-IR, ¹H NMR, ¹³C NMR and elemental analysis were performed to characterize the molecule of the ionic liquid, and its crystal structure was determined by single-crystal X-ray structure analysis. The results indicate that the improved procedure is very feasible and 96% yield. The crystal structure analysis will be conducive to clarify the relationship of structure and function for ionic liquid with alkynyl the compound.

Abstract: As the network technology is widely used in the functional materials test of ecology environment, it becomes more and more important to balance testing network performance fast and accurately. However, there are so many network testing methods with a variety of user needs and different scopes. If we use these test methods indiscriminately, time and money is largely consumed, and the testing results often cannot meet user's requirements. Thus, while testing the network performance, in order to accelerate the speed of the material testing, and ensure the quality and the accuracy of test results, characteristics and user's requirements must be selected and improved.

Abstract: Electrical contractor affects reliability and working life of switches and electrical equipment directly, which is the key component of high-voltage and low-voltage apparatus. Nowadays, all fields of mid-voltage and above are occupied by vacuum switch. The invention of contactor material CuCr promotes the development of electrical contractor material and vacuum switch though the weakness can not be ignored. This paper makes a study and analysis about the performance of traditional electrical contractor material WCu. Its believed that alloy WCu has the high conductivity and high thermal conductivity of W, and the ability to improve applying condition and reduce electrical corrosion of Cu. So the experiment is made to test electrical characteristics of material WCu which is doping with different element. The performance of a new electrical contractor material, named Ti₃SiC₂, which is better than alloy WCu is put forward. This material meets the requirement, including high voltage, huge capacity, small scale, for switching equipment to develop grid, as the new material has advantage of low density, high modulus, high melting point, and antioxidant and so on. The successful application improves its superiority in the field of electrical contractor material.

Abstract: Oxsilan technology has begun replace the iron and zinc phosphating general industry gradually. Oxsilan technology pre-treatment technology has some advantages such as environmental protection, free of harmful heavy metals, residue-free and low energy consumption, but the domestic automotive pretreatment technology has not yet applied. Through oxsilan technology, this paper carries out cycle test, stone chipping resistance, salt spray test, using cold rolled (CRS), electro-galvanized sheet (EG), hot dip galvanized sheet (HDG) and aluminum (Al) and compares with sample performance of electrophoretic coating of oxsilan technology and phosphate electrophoresis film. The results show that oxsilan technology has potential to replace iron and zinc phosphating technology in the automobile pre-treatment technology.

Abstract: Global warming caused by CO₂ and other greenhouse gas emissions has a direct impact of human existence, The current three sets of technological solutions corresponding to the global warming to develop low carbon economy such as improving energy efficiency and conservation, reducing the carbon content of energy, development and utilization of natural carbon sinks, are not only existence of selection bottleneck but also run hardly and cannot solve global warming in this century fundamentally. Wood carbon sequestration is a new global carbon pool based on technological innovation, combined with modern agriculture, created by means of industrialization. Wood carbon sequestration is not only a long-term carbon sequestration benefits storage body also can be a low-cost production resources or materials. To cultivate it to become an industry will not only become the new economic growth point for farmers to increase incomes, promote regional economic restructuring and industrial upgrading but also end the dependence of forest wood resources to human. This paper puts forward some corresponding countermeasures and suggestions on making reform on institutional level and the innovation of financial products to support the development of wood carbon sequestration materials industry, based on the financing obstacles to the development of wood carbon sequestration materials industry, form the significance of wood carbon sequestration materials development.

Abstract: The forest carbon sinks play an important role in controlling the Greenhouse Gas emissions. The project management of wood carbon sequestration materials will be helpful to attract more and more enterprises to step into forestation, reforestation and technology development for improvement of forest management. That will create a sustainable situation that governments, NGO and corporations join together. Based on the domestic and foreign literature, the paper sorts out the current literature in the direction of forest carbon sequestration managements are from five aspects such as, carbon policy, carbon sequestration, carbon conservation, carbon substitution, carbon benefits. Based on this, the paper puts forward the policy and the long-term objectives of wood carbon sequestration materials should be integration of the implementation.

Abstract: Zeta potential of purified sepiolite in aqueous system was studied as a function of pH and solid content. From the experimental results, it was found that sepiolite surface acquired a negative charge in water at natural pH, and the value of zeta potential decreased with the increase of pH value. Solid content had effect on zeta potential, but it can be minimized by the increase of time.