Fumed silica is the superfine micro-nano fine chemical product , which is divided into hydrophilic type and hydrophobic type in accordance with their different surface treatments, its appearance is white powder , native particle size ranges from 5nm to 40nm, with signficant functions of thixotropy, reinforcing, thickening and filling.
it is widely used in the industries of rubber , sealant, plastic , resin, paint, printing ink, papermaking, medicine, cosmetics food etc.
Features Of Micro Silica (Silica Fume) Micro Silica also known as Silica fume. It is a by product of producing silicon metal or ferrosilicon alloys in smelter using electric arc furnaces. It is a grey coloured powder, pozzolanic in nature. Applications Concrete Industry Refractory Rubber Industry Anti caking agent Pellet Binder
Microsilica (silica fume) is a by-product of silicon metal or ferrosilicon industries, is an amorphous silicon dioxide SiO2. This product reacts chemically with the calcium hydroxide in the cement paste which yields a calcium silicate hydrate gel that significantly enhances strength and durability. The super fine microsilica fills the voids between cement particles creating a very dense, less permeable concrete. Physical characteristics: Color: gray or gray white powder Bulk density: 320-700 kg/m3 Chemical composition: Items SiO2 Al2O3 Fe2O3 MgO CaO Na2O Moisture Content 75-98% 1.0-0.2% 0.9-0.3% 0.7-0.1% 0.3-0.1% 1.3-0.2% Fineness: the fineness of the silica fume is less than 1 1/4m, and the average particle size is 0.1 0.3 1/4m, and the specific surface area is 20 - 28 m2/g. The fineness and specific surface area are about 80-100 times of cement and 50-70 times of fly ash. Maxtech Micro Silica supplies will be as per QCS 2014 (ASTM C1240): SiO2: >/= 92% LOI:
Introduction Fumed silica is hydrophilic fumed silica(silicon dioxide). It is high purity and fluffy powder with typical specific surface area of 150g, 200g, 300g, 380g. Furthermore, it is characterized by an x-ray amorphous structure. Positive effects: Optimum adjustment of rheology during processing Reinforcement of silicone elastomers Thickening of non-polar liquids Free-flow of foodstuffs and industrial powders High chemical purity Excellent insulation properties, even at high temperatures Conversion of liquids to powders, e.G. Pharmaceuticals, cosmetics Gelification of battery acids Rheology control of greases and lubricants Detailed application area: Coating:ep-, up-, pu-, acrylic resinpmma/mmapvc plastisol Sealants:pib, pu, acrylic resin, butyl rubber, rtv silicone sealant Film:hydrate celluloseperpipvcpapepp pvcf Gel coat:laminated resinupmfpf resin Casting film:puepacrylic resin, rtv silicone rubber Cable:htv silicone rubber pe Foam plastic and polymer:epspvcppsappa ep Adhesives:epuppp pupvac Silicon rubber:rtv-1crtv-2c lsr(vms) Fluororubber Natural rubber
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Silica is mainly used as a carrier of agricultural chemicals. Finely crushed silica powder is coated with agricultural chemicals and sold on the market for agricultural use. Silica itself has no effects; it merely serves as a carrier, and so can be dispersed without affecting the farmland, which makes it advantageous as a core material. It's used as Fire-resistant product powder, Agricultural chemical carrier, Agricultural chemical carrier, Construction board
1. Characteristic: It is a white and colloidal micro-particle with its primary micro-particle from 5-40 nm and has obvious properties such as thixotropy, reinforcing, thickening and filling etc. and is insoluble in all kinds of solvents and liquids except hy-drofluoric acid and concentrated bases. 2. Specification: Q/SHG19-2008ItemIndex Product: LM200 Apparent: White solid colloidal micro-particle Specific surface area m2/g: 150�±15 PH value3.6~4.3 Heating loss weight % (m/m) â?¤1.0 Burning loss weight % (m/m) â?¤1.0 Apparent density g/Lâ?¤60 3. Uses: It is used widely in silicone rubber, construction sealant, coating, electron and electric, aerospace, medicine and medical material, resin processing, printing ink, pesticide and other industries. LM-150: used widely in silicone acid rubber, sulfurized silicone rubber in ambient temperature (low water content), silicone neutral rubber. LM-200: used widely in sealing ring, sealing gasket, petroleum pipeline, insulator, tablet powdered preparation, artificial viscera, infusion tube, latex nipple and high quality oil ink. LM-300: used widely in resin thickener, thickness agent for synthetic lubricating ester, resin thixotropic agent for electronic component. LM-380: used widely in reinforcing agent for silicone rubber, medical silicone rubber for transparent artificial organs and artificial heart etc. 4. Packing: packed with multi-layer paper plastic compound bag with net weight of 5 kg or 10 kg, or packed by whole plastic seal for users having special demand on water content. 5. Store and transport: placed in vent and dry storehouse and prevented from humid, water, pressure and throwing during transport.
We are supplier and exporter of Silica Sand. Silica Sand * Silica Sand is a type of sand usually available in the form of quartz. It is a hard and crystalline form of mineral components. * Silica sand is the most abundant mineral with the purity more than 99.0%. It is the preferred choice of consumption for various industrial purposes.
Micro Silica Sand: Micro silica also known as fume, is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 mm. The main field of application is as pozzolanic for high performance concrete because of its extreme fineness and high silica. Applications : Silica is added to Portland cement concrete to improve its properties, in particular its compressive strength, bond strength, and abrasion resistance. These improvements stem from both the mechanical improvements resulting from addition of a very fine powder to the cement paste mix as well as from the pozzolanic reactions between the silica fume and free calcium hydroxide in the paste. Advantages : Addition of silica also reduces the permeability of concrete to chloride ions, which protects the reinforcing steel of concrete from corrosion, especially in chloride-rich environments such as coastal regions and those of humid continental roadways and runways (because of the use of deicing salts) and saltwater bridges.
