Jinsha Precipitated Silica Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of hydrophobic silica for plastic products 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 for Plastic Products

Silicon dioxide used in plastics is called silica in plastics industry. It is a kind of material with large specific surface area after special treatment. White carbon black can be used as filling materials in polyethylene, polypropylene, polybutylene, epoxy resin and other plastics, which can improve the elastic strength and wear resistance of plastics, as well as the thermal stability of hardness. Between the two layers of plastic film is often difficult to separate, when the bag is difficult to open, then silica is a very top opener. When PVC is used as a household floor material, if a certain amount of silica is added, the hardness, elasticity, thermal denaturation and other properties of the product can be improved.
JS-682 as a mixed organic-inorganic material hydrophobized with organic dressing agent in the precipitated solution, the hydrophobic precipitated silica we produce has the following characteristics: high surface activity, low hygroscopicity, enhanced dispersibility in organic medium and excellent polymer compatibility. And it also has the rheological capability to adjust the polar system, add the transparent/semi-transparent characteristics for rubber products.
Specification:
JS-682
Test Methods | Properties | Units | Target Values (Spec Limits) | Actual Values |
HG/T3065-2008 | Loss on drying (2Hrs,105℃)加热减量 | % | Max.4.0 | 3.45 |
HG/T3066-2008 | Ignition loss 1000℃ 灼烧减量 | % | Max.8.0 | 6.85 |
HG/T3072-2008 | DBP absorption value DBP吸收值 | cm3/g | 1.2-1.7 | 1.47 |
HG/T3067-2008 | pH value (10%aqueous suspension) pH值 | — | 6.0-8.0 | 7.23 |
HG/T3062-2008 | SiO2 (Dry Basis) 二氧化硅(干基) | % | Min.96 | 97.4 |
HG/T3073-1999 | BET specific surface area BET比表面积 | m2/g | 120-170 | 143 |
Soluble salt (Na2SO4) 可溶性盐 | % | Max.1.0 | 0.45 | |
Particle size | um | 6 |
Packging:
Muti-paper bag,20kgs/bag,7.8MTS/40HQ
Certificate:
We have passed REACH full-registrated.
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