Jinsha Precipitated Silica Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of hydrophobic silica in China. With abundant experience, we warmly welcome you to buy high quality products made in China here from our factory. Contact us for more details.
Hydrophobic Silica
Comparing with general silica products,hydrophobic silica has very high surface activity, and has transparent and translucent properties in some rubber products. It is especially suitable for making light colored, bright colored, transparent and semi transparent rubber products. In addition, can be used as latex paint and ink isolation agent, anti settling agent, thickening agent, thixotropic agent, agent of all kinds of plastic foil mouth; pesticide granules, dispersing agent; adhesive materials and lightweight material products and toothpaste abrasive, and can be used in high-grade putty series products.
Production Discription:
| HYDROPHOBIC SILICA | ||
| Properties | JS-681 | JS-682 |
| SiO2% | ≥90 | ≥90 |
| Powder brightness白度 | ≥95 | ≥95 |
| Loss on drying (2Hrs,105℃)加热减量 % | ≤2.0 | ≤2.0 |
| Ignition loss 1000℃灼烧减量 % | ≤7.0 | ≤7.0 |
| pH value (10%aqueous suspension) PH值 | 6.0-8.0 | 6.0-8.0 |
| Tap density振实密度 g/ml | ≤0.2 | ≤0.2 |
| BET specific surface areaBET比表面积 m2/g | 170-210 | 130-170 |
| DBP absorption value DBP吸收值 ml/g | 1.5-2.5 | 1.5-2.5 |
| Soluble salt (Na2SO4)水可溶物 % | ≤1.0 | ≤1.0 |
| Average Particle size粒径Micron | 5.5-6 | 5.5-6 |
Packaging:
Packing Method | LDPE liners wrapped with laminated HDPE | |||||||
Also available in EVA bag inner packing | ||||||||
Packing Bags Available | (Standard Bags) HDPE
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10kgs | ||||||||
Shipment | NET WEIGHT PER BAG | SHIPMENT ( MT ) | ||||||
(KGS) | TRUCK LOAD | CONTAINELOAD | ||||||
UNPALLETIZED | PALLETIZED | |||||||
20’ FCL | 40’ H.C.FCL | 20’ FCL | 40’ H.C. FCL | |||||
10.00 | 4.5 | 4.5 | 9 | 4.5 | 9 | |||
FAQ:
1.What is the application of hydrophobic silica?
Rheological agent: separant for emulsion, anti-settling agent for paints/coatings/inks/toners, thickening agent, thixotropic agent, anti-block agent for plastic film;
Powder glidant: for powder extinguishing agent and powder coats;
Granula agent and dispersion agent for pesticides;
Carrier for explosive;
Thickening agent for Adhesives and various kinds of polar liquid like epoxy resin;
Defoaming agent:
Abrasive agent for tooth paste;
Reinforcing agent for organic silica elastomer;
With the hydrophobic and anti-corrosion characteristics, the hydrophobic precipitated silica can also enhance the insulating property for cables and cords. And with the high reinforcement, the hydrophobic precipitated silica is widely used in the industrial plastic, modified plastic and silicon rubber.
2.What is hydrated silica?
Hydrated Silica (English name Hydrated Silica; Silicondioxidehydrate), also known as white carbon black , also known as light silica, the main component is silica, white amorphous powder. Light Loose, soluble in caustic and hydrofluoric acid, insoluble in water, solvents and acids (except hydrofluoric acid). High temperature, nonflammable, tasteless, odorless, with good electrical insulation. Its performance is similar to carbon black , but it is white.The molecular formula and the structural formula can be represented by SiO2 · nH2O, where nH2O is present as a surface hydroxyl group. Its macroscopic structure is similar to carbon black, the particles are spherical, single particles between the surface contact, was chain-like structure (secondary structure). Chain structure and hydrogen bond force to form a group of aggregates. The original particles are very fine, absorb moisture in the air to form aggregated fine particles. Silica particles on the surface of hydroxyl particles, mainly isolated hydroxyl, adjacent hydroxyl, silicon three (see Figure 2,3). Wherein the adsorption of polar groups from adjacent hydroxyl groups is important. The presence of these groups makes the silica surface has a strong hydrophilic, surface area and dispersion capacity are large, mechanical strength and tear resistance are high. High temperature does not decompose, high insulation, with small particles, large surface area, high structural characteristics. Mainly used for the rubber industry excellent light reinforcing agent, lubricants, insulation materials. Can be dilute sodium silicate solution and dilute hydrochloric acid reaction system
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