Jinsha Precipitated Silica Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of buy silica powder for adhesives and sealants 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.
Silicon Dioxide for Adhesives and Sealants
Nano-silica (JS-682) dispersed evenly in the adhesive and sealant, and form a silica aggregate network, the aggregate through the surface of the silanol group (Si-OH) and the polymer molecules to form hydrogen bonds , The system's mobility is limited, the viscosity of the system increases, and thus play a thickening effect, at the same time, under the action of the shear force, hydrogen bonds and silica network damage, resulting in decreased system viscosity, change effect, easy to construction, once the shear force is removed, the silica network and hydrogen bonds are re-formed. Thereby effectively preventing anti-settling during storage.
Addition of the appropriate (JS-682) to the adhesive and sealant not only improves the bond strength of the adhesive and sealant, but also extent the stability of the glue. The addition ratio is generally 0.5 to 1.5%
Specification: JS-185C
Test Methods | Properties | Units | Target Values (Spec Limits) | Actual Values |
HG/T3065-2008 | Loss on drying (2Hrs,105℃)加热减量 | % | 4.0-8.0 | 6.85 |
HG/T3066-2008 | Ignition loss 1000℃ 灼烧减量 | % | Max.7.0 | 4.26 |
HG/T3072-2008 | DBP absorption value DBP吸收值 | cm3/g | 2.3-2.6 | 2.42 |
HG/T3067-2008 | pH value (10%aqueous suspension) pH值 | — | 6.0-8.0 | 6.81 |
HG/T3062-2008 | SiO2 (Dry Basis) 二氧化硅(干基） | % | Min.96 | 97.0 |
HG/T3073-1999 | BET specific surface area BET比表面积 | m2/g | 170-200 | 182 |
Soluble salt (Na2SO4) 可溶性盐 | % | Max.2.5 | 1.5 | |
Content of Fe 铁含量 | ppm | Max.500 | 370 |
Packaging: 10kgs per paper bag, 11 tons with pallets each 40HQ
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