Building energy conservation has become one of the important goals of energy conservation in China. Data show that China’s use of the process of building energy consumption accounted for 27.6% of total social energy consumption, and the economy more developed, the higher the standard of living, the greater the proportion will be. The rapid development of urbanization will lead to the rapid growth of urban population, combined with the development of the industry, the increase in automobile ownership and the increasing number of buildings, will make the city’s “heat island effect” become more and more obvious, which will make Building insulation, insulation requirements more urgent. Effectively reducing the surface temperature of buildings and various facilities, for the protection of the environment, energy conservation and improve the living environment and so have a very important significance. Therefore, with the increasing use of architectural coatings, building energy conservation has become a major problem affecting the overall socio-economic development.
In the past, the building insulation technology is mainly used to achieve low thermal conductivity of the material, commonly used polystyrene board material thickness of 30 ~ 50mm, the insulation structure is complex, the construction is very difficult. In contrast, the thermal insulation coating is through the building inside and outside the wall and the top coated with a layer of barrier, reflection, radiation and other effects of the coating to achieve energy saving and insulation purposes of the thin functional coatings. Now, thermal insulation coating has become a new material development and production of new hot spots.
Only through a high-powered electron microscope, you can see it’s “true face.” This is hugely magnified in “micro world”, it looks like a small hollow capsules crystal clear glass ball.It is a unique structure of this tiny scales, creating its unique properties, making it a “mainstream of the 21st century, new composite materials,” the eyes of many people. Its full name is called high-performance hollow glass microspheres, is Sinosteel Maanshan Institute of Mining Research Co., Ltd. introduced the CAS technology to carry out the outcome of industrialization, is one of the technological masterpiece of the world from Ma On Shan to.
Sinosteel Maanshan Mining Institute New Material Technology Co., Ltd. is specialized in the research and development of high-performance hollow glass microspheres, sales of integrated high-tech enterprise under Sinosteel Maanshan Institute of Mining Research Limited.The hospital is a national pilot innovative enterprises, the State Torch Program focused on high-tech enterprises, high-tech enterprises in Anhui Province. 2009 new materials technology company developing high-performance hollow glass microspheres products have comprehensive on the market.
Widely used in glass and steel products, composite foam, artificial marble, synthetic wood,
sound insulation materials, putty, deep-sea buoyancy material, bowling, low density adhesives,
sealants, lightweight resin crafts, mural wall picture frames, wall panels sandwich structure,
electronic light industrial packaging materials, absorbing materials, lightweight concrete,
emulsion explosives.
Hollow glass beads is a size small hollow glass spheres, is an inorganic non-metallic materials. A typical particle size range 10-180 microns, a bulk density of 0.1 to 0.25 g / cc, a lightweight, low thermal conductivity, sound insulation, high dispersion, electrical insulation and thermal stability, etc., is a development up to 2008 versatile, high-performance new lightweight materials. Can be used in any color appearance of the products required.
The pretreatment of hollow glass microspheres configured dope also added, adding an appropriate amount of dispersant, and then adding silver ammonia solution, the reaction was stirred 20min, deionized water to drink alcohol to clean the glass beads, and drying.
After Pretreatment with three silver-plated hollow glass microspheres were obtained spectrum detection, removal of a small atomic number elements and trace impurity elements.After analysis, the “three-step” Silver content obtained after pretreatment silvered hollow glass microspheres obtained the silver content is lower than after the other two pre-treatment process, the “silver ammonia solution activation method” and “colloidal palladium law “after pretreatment silver content obtained silvered hollow glass microspheres closer, respectively, 65.44% and 60.38%, have reached a high silver content, the silver content, the latter two pretreatment process better than the “three-step”, while in the “three-step” to use to hydrofluoric acid and other toxic substances .
Hollow glass beads on drilling fluid density
With the oilfield development, often faced with difficult exploration and development, purpose layer buried depth, low formation pressure, then use under-balanced drilling more. Therefore, more and more high to the requirement of drilling fluid.In order to reduce the leakage and reservoir protection, as well as oil and gas layers in time, need of drilling fluid density is lower than 1.0 g/cm3. With air drilling, foam drilling fluid, and water-in-oil emulsion drilling fluid, the realization of the oil-base drilling fluid is easy way, but there are many shortcomings, and drilling fluid performance itself control difficult, rheology and hydraulics calculation complex practical problems such as difficult to solve. Using high-performance glass beads in under-balanced drilling has many advantages. Adding glass beads of the drilling fluid density decreased significantly, and the added amount, the lower the density of drilling fluid.When the content of T60 type glass beads was 40%, 0.870 g/cm3 density of drilling fluid. Therefore, its biggest advantage is to adjust drilling fluid density within a certain scope. Instant in high pressure high, the drilling fluid density is more stable, this is because the hollow glass beads with low density high strength properties.
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The main feature of this composite material is the low density, is a mechanical properties, set vibration, insulation, fire in one of the multi-functional synthetic materials. At present, it is mainly used in the field of aerospace and shipbuilding. The addition of hollow glass beads to the synthetic foam not only has a porous structure, but also has a low hygroscopicity and a high compressive strength due to the obturator structure of the microbeads.
Composite foams are made of hollow glass microspheres filled with polymer matrix and are often referred to as synthetic foams. The density of the conventional foam is easy to reach 0.01 to 0.10 g / cm3, but there is a drawback that the strength is poor and the chemical foaming process is difficult to control.
Road reflective glass beads is a kind of glass sand as a raw material tiny glass beads formed through high temperature melting observed spherical, colorless and transparent under the microscope, a refractive index of between 1.5-1.64 diameter general between 75 micrometers to 1400 micrometers. It is also called reflective glass beads.Currently in the domestic production of road reflective glass beads craft flame floating method and electric melting method.
Road reflective glass beads for road marking as the reflective material to improve road marking paint Retroreflective performance, improve traffic safety at night, has to be determined for national transport sector.When driving at night, the lights shone on road signs online with glass beads, can lights and parallel light rays reflected back so that drivers see the way forward to improve traffic safety at night. Now, reflective glass beads have become a road safety products reflective material can not be replaced.
This article comes from Douding network
Reflective glass microspheres is a tiny glass sphere glass sand particles as raw material formed by high-temperature melting. Reflective glass microsphere for road marking as the reflective material to improve road marking paint Retroreflective performance, improve traffic safety at night, has to be determined for national transport sector.When driving at night, the lights shining on the road signs with glassmicrosphere, can lights and parallel light is reflected back, never make drivers see the way forward to improve traffic safety at night. Now, reflective glass microspheres have become a road safety products reflective material can not be replaced.
This article comes from DOC88
Ocean is a treasure trove of resources and energy, especially deep-sea fields. Currently, deep-sea exploration, development mainly in diving technology, the use of submersible, underwater robots in the deep sea observation, measurement, sampling, install the necessary instruments and facilities, underwater operations. High strength solid buoyant material is an important part of modern diving technology, to ensure the buoyancy of submersible, submersible increased payload, reduce its dimensions, has an important role.
With increasing dive depth, pressure increased dramatically deteriorating environmental conditions, so the sharp increase diving solid buoyant material performance requirements, especially in terms of compressive strength.Generally, improving the compressive strength of the foam density increases often result. But for buoyancy material, density is a very important performance index, which directly affects the buoyancy materials, namely payload capacity.It means lower density increases buoyancy, increased excessive or even lose buoyancy. Thus, advanced solid buoyancy material should be both light and strong, i.e., maintaining a low density, the substantial increase in the compressive strength.Advanced solid buoyant material preparation technology, mainly for the United States, Russia and other countries to master the material density is generally in 0.4 ~ 0.6g / cm3, compressive strength at 40 ~ 100MPa.While in the field of research has been carried out for many years, but dive with solid buoyancy material properties are also poor, heavily dependent on imports. Factors behind this situation are many, the core raw materials – the lack of high-performance hollow glass microspheres is a key factor.
Currently, it makes microwave radar, infrared, radar or other electromagnetic wave radar and acoustic detection system shield absorbing materials have been widespread concern in the military field. Near infrared reflective material can be used in aviation, aerospace, building materials, vehicles, weapons and other fields.
Cenospheres powder density is small, the metal surface after its treatment, can be substituted for the denser metal electromagnetic wave absorbing powder (RAM) or prepared electromagnetic shielding (EMI) material.
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