Nanjing University research team developed new insulation materials Sidelights
texture, simply, microlens, the color was light pink, light blue, white …… Graduate School of Materials Science and Engineering, Nanjing University, Zhu Kunmeng students placed her experimental products in the laboratory, Professor Cui L, a magic material –. Airgel is a three-dimensional network structure of nano-materials, having a low density, high surface area and high performance low thermal conductivity and the like, can be used for building insulation and industrial insulation, one of the ten future development of new materials.
Properties of building insulation materials protrusion
is now wall insulation to polystyrene foam-based, high thermal conductivity and high temperature difference. Airgel as an external building insulation materials, mesoporous its internal structure, so that compared to conventional heat insulating material having superior thermal insulation effect, also lower than the thermal conductivity of still air, insulation performance is more prominent in solid material. \”Airgel insulation materials belong to class A, to Mars will not burn, it is also effective as a thermal insulation material to reduce the possibility of fire.\” Said Cui L, \”airgel low thermal conductivity, as the wall body thinner than conventional insulation materials insulation material and good effect. \”as well as wall insulation, aerogels may also participate in the production of windows, glass reinforced insulation effect. Airgel is now applied to the granular and chunk two kinds of glass. It is understood that the intermediate particulate airgel glazing filled with airgel particles, the outer layer is a Low-E glass, translucent poor this scheme, but the heat loss is small; airgel glazing block, which is light-transmissive rate of up to 0.75, good sound insulation. At present the practical application of airgel particles to the main program, the highest saving rate up to 80%. Materials Science Dr. Rank Conventional foamed cement, foam and foam glass ceramic or the like as a base, and vacuum impregnation binding ethanol fast supercritical drying process to prepare a series of SiO2 airgel matrix composite foam insulation material. The thermal conductivity of the material as low as 0.045W / (m · K), and overcomes the deficiencies of non-compressive break strength airgel material, not weight bearing, compression off capability comprising airgel, may be used in certain structure for support material, by machining can also be adapted to different environmental requirements. \”In the summer, hot areas, the material for commercial building facades, plus alternative to traditional insulation layer structure of concrete, can save 20% of the total annual energy consumption.\” Rank Conventional said, \”In addition to building applications, the material in cold storage insulation, pipe insulation and thermal insulation furnace and other fields have broad application prospects. \”
\” New Power \”booster industrial insulation
crystal growth furnace silicon photovoltaic industry is an important production equipment, high production temperature need its internal energy efficient insulation material, reduce energy consumption. ho lock member RESEARCH 1602 class students crystalline silicon photovoltaic industry growth furnace for energy saving, low preparation cost is proposed, long life cycle and low thermal conductivity of the new high-temperature carbon fiber reinforced airgel material carbide, silicon crystal growth furnace effectively replacing high-purity graphite felt, breaking the double technical and financial barriers. the project won the top award at the just-concluded sixteenth \”Challenge Cup\” contest Jiangsu game. \”traditional insulation materials mainly high thermal conductivity, corrosion Wen defects and poor. We compared the domestic and commercial products airgel, airgel products currently found on the market, while having low thermal conductivity, but low maximum operating temperature, and temperature resistance poor. \”Ho said lock,\” we inorganic aluminum salt as a raw material and a boron source, a carbon fiber as a reinforcing material, prepared in a number of key technologies to break often warmed conductivity lower than 0.05, maximum compressive strength of 9.1 MPa, good thermal stability carbon fiber reinforced airgel carbide. \”The product is now in JinkoSolar Holdings Limited and Suqian Institute pilot study of new materials, carbon fiber reinforced carbide completed airgel material acquisition pilot line, pilot production and research applications.
good application prospects and economic value
aerogels have broad application prospects, can be used in aerospace, petrochemical, new energy, transportation and other fields. \”if the use of such insulation materials in laptops and mobile phones, you can boot from the heat neighboring shed, help to improve the thermal efficiency, enhance the use of comfort. \”Professor Cui L, said,\” airgel can also be applied to the lithium battery of new energy vehicles, lithium battery coupled between the airgel product, can prevent heat from affecting each other each lithium battery, the battery can be further prevented due to high temperature leads to burning. \”November 19, 2017 China Association of energy-saving insulation material airgel materials branch was established, Nanjing University to become president of the unit. In recent years, Nanjing University of Technology research and development, including thermal insulation, adsorption, carrying medicine, with photocatalytic and a variety of airgel material with anti-bacterial, formed Shen Xiao-dong, Choi was promoted to leader of the research team is currently airgel results have been transferred to many enterprises to achieve industrial applications. among them, nano-based airgel insulation the pipe insulation material, insulationWater tanks and other projects, has accumulated 245.72 million yuan economic benefits. In the field of adsorption, polypropylene fiber composite airgel material products to respond effectively to oil treatment, a total of 54.524 million yuan to achieve economic efficiency