Particle diameter line-up Product name: FE9 Series Median particle diameter (μm): ~8 Specific surface area (m2/g): ~2.0 Circularity: 0.98
Although you do not directly see or touch Admatechs' products in everyday life, our spherical particles play a significant role in a broad range of fields to provide essential functions for final products. Personal computers are composed of many semiconductor devices, such as CPUs and memory boards. Semiconductor devices include tiny silicon chips with complex circuits built into them, and these chips are plastic-bonded to the wiring board. The outside of some semiconductor devices may be covered with black plastic to protect them. These plastics are generally a mixture of resin and silica. The coefficient of thermal expansion is different between the resin and silicon. Therefore, if the composition of plastic is only resin, chips may crack when large forces are applied due to temperature increases during operation. As ADMAFINE is made of silica, which has an extremely small coefficient of thermal expansion, blending ADMAFINE into the resin can adjust the plastic coefficient of thermal expansion to be almost equal to that of silicon. Silica is blended into these plastics at a weight ratio of 60 to 90%. ADMAFINE is also used in items such as circuit boards composed of semiconductor devices and sealing material for liquid crystal displays. Thin and light mobile phones are an assembly of parts that use ADMAFINE. It is not an exaggeration to say that ADMAFINE is an essential material to make integrated circuits much thinner and lighter, to make liquid crystal displays more easily viewable and much brighter, and to further reduce the thickness of mobile phones while enhancing reliability. ADMAFINE is also essential for improving the performance of white LEDs. As a light-emitting diode (LED) emits monochromatic light, such as red, green and blue, a neutral-color or white is produced by mixing these lights. To produce white light using only one LED, blue light emitted from a blue LED is used to illuminate a yellow phosphor coating, and this light is blended with the original blue light to produce a quasi-white light. The phosphor is kneaded into the lens. However, only part of the phosphor is utilized as the light emitted from an LED is highly linear. ADMAFINE is able to help overcome this problem. As ADMAFINE consists of spherical particles, the light can be diffused in a multitude of directions upon contact. This means that the light is directed over the entire lens, enabling the phosphor to work more effectively, resulting in a great improvement in efficiency It seems that temperatures have steadily increased due to global warming. Particularly during the summer heat, you want to be even a little cooler, don't you? ADMAFINE can also respond to this. The particle size of ADMAFINE is uniform. When ADMAFINE is blended into heat shield paint, it effectively reflects the infrared rays (heat) that are a component of solar beams. This mitigates the heating of the base coat due to sunlight. The effect has been proven by applying this paint to Admatechs' warehouse roof and entrance road. Most displays these days are the liquid crystal type. ADMAFINE also plays a significant role in these, although it is not visible. Using ADMAFINE in the sealing material to prevent the leakage of liquid crystal, and the heat release sheet for the LED backlight improves the durability and performance of the display. It goes without saying that ADMAFINE is used in semiconductor components and circuit boards.
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ADMANANO, which treated our original techniques, can be mixed organic /inorganic powder directly, and improve the powder properties, e.g. fluidity, filling rate, sinterability, compressibility, and etc. ADMANANO can be used for a wide variety of industrial applications. For examples, it improves physical properties of liquid-epoxy-encapsulation and color master batch having high filler content. It also improves mobility of fibers/powders made of organic/inorganic materials and metal, including glass, carbon, talc, mica, silica, alumina, zirconia, titania, ITO, ceria, barium titanate, zinc oxide, aluminum hydroxide, boron nitride, alumium nitride, silicon nitride, Fe, Ni, Al, Ag, Cu, W, Mo, Ta, alloy of these metal, PTFE, PS, silicone, acryl, and etc. as well as those mixtures such as powder-paints. It can be an additive to control dispersibility of these materials, or to spheroidize of them. You can easily open glass/carbon fiber chopped strands. It also can be used as materials to form nano structure, as sintering agent for ceramic condenser, as lubricant agent for ink, and grinding agent for above organic/inorganic materials and metal powder, inorganic pigment, functional ceramics like BaTiO3, and etc. It also improves mobility of powders used for Selective Laser Sintering (3D printer) or Thermal Spraying, e.g. metal / ceramic powder, nylon beads, plaster, and etc.. You can easily feed small powders uniformly. Its applications are not limited to these examples. ADMANANO changes charging characteristics of insulator particles, such as glass fiber and PTEF powder, and can lower their triboelectricity. The antistatic effect of Admanano is different from an ordinal mechanism caused by moisture. It is supposed that nano particle reduced friction force, or that nano particle neutralized charge by shuttling between insulator particle and friction surface such as screw, impeller and container. These fillers treated with ADMANANO is used for structure materials, low-dielectric and low-dielectric loss materials, sliding materials and etc.. Application - ●Electronic devices Liquid sealing materials,die-attaches,circuit board materials,and fillers for resist materials - ●Optical materials Clear adhesives and substrates,hard coating materials - ●Resin filling materials and additives - ●Flow promoting agent for powder
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Silica / SiO2 High-purity synthesis spherical silica ●Spherical particles characterized by sharp particle size distribution. ●Average particle size can be controlled from 0.2 to 2.0 µm as desired. ●High purity, fewer ionic impurities, non-porous surface, and excellent dispersibility. ●Two levels of purity are available: SO-C type (regular) and SO-E type (low-alpha beam). In particular, the SO-E type is the grade compatible with chips (e.g. memory chips). High-purity products use the low-alpha beam grade, specialized for chips, such as memory. As regular products do not contain ionic impurities, they can be used for electronic devices. ●Particle diameter line-up SO-C type regular grade Product name | Median particle diameter (μm) | Specific surface area (m 2/g) SO-C1 | 0.2～0.4 | 10～20 SO-C2 | 0.4～0.6 | 4～7 SO-C4 | 0.9～1.2 | 3～6 SO-C5 | 1.3～1.7 | 3～5 SO-C6 | 1.8～2.3 | 1.5～2.5 SO-E type low-alpha beam grade Product name | Median particle diameter (μm) | Specific surface area (m 2/g) SO-E1 | 0.2～0.4 | 10～20 SO-E2 | 0.4～0.6 | 4～7 SO-E4 | 0.9～1.2 | 3～6 SO-E5 | 1.3～1.7 | 3～5 SO-E6 | 1.8～2.3 | 1.5～2.5 ●Purity(impurity)data Composition | SiO 2(%) | SO-C type regular grade: 99.8 | SO-E type low-alpha beam grade: 99.9 Moisture content(%) | <0.05 | <0.05 Fe(ppm) | <500 | <20 Al(ppm) | <700 | <100 U(ppb) | - | <0.3 Ionic impurities | Na+(ppm) | <1.0 | <0.5 K+(ppm) | <1.0 | <0.5 Cl-(ppm) | <2.0 | <1.0 Extraction properties | EC(μS/cm) | <15 | <6 pH | 4.2～5.0 | 4.5～6.0 Application ●Electronic devices Filler for Epoxy molding compound, fillers for printed circuit boards ●Resin filling materials Engineering plastics, filler for paint, filler for precise plastic molding ●Ceramics molding products ●Anti-blocking materials ※ ADMANANO is a registered trademark of Admatechs Co., Ltd. ※ The figures presented on this page represent typical values only, not guaranteed values. ※ The particle sizes presented in this material are values that we obtained by using a laser diffraction particle size analyzer.For this reason, the products presented herein contain a very small amount of very fine and coarse particles.
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Median particle diameter (nm): 100 Specific surface area (m2/g): 30 ADMANANO® composition and properties: SiO2(%): 95 Moisture content(%): <2 Fe(ppm): <1000 Al(ppm): <2000 U(ppd): - Water-soluble impurities - Na+(ppm): <10 Water-soluble impurities - K+(ppm): <10 Water-soluble impurities - Cl-(ppm): <10 Extraction properties - EC(μS/cm): <20 Extraction properties - pH: 5.0～9.0 Admanano is delivered as powder or solution in typical solvents such as MEK, MIBK, PGM, PGMAc, CHN, etc. Also, we can make a suspension in your resin (e.g. epoxy resin, acryl resin, etc.). Standard SiO2 contents: ~60wt% (100nm). Possible surface treatment: Methacryl, Vinyl, Phenyl, etc. ※ ADMANANO is a registered trademark of Admatechs Co., Ltd. ※ The figures presented on this page represent typical values only, not guaranteed values. ※ The particle sizes presented in this material are values that we obtained by using a laser diffraction particle size analyzer. For this reason, the products presented herein contain a very small amount of very fine and coarse particles.
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