Precipitated Silica For Printing Ink and Paint
◆Description of products
The product is produced by the reaction of commonly hydrophile silicon dioxide and a certain chemical material in the appropriate condition. It is a kind of solid powder silicon dioxide whose surface has polysiloxane and its distant water angle is 70-150. It has not only excellent distant water capability but also the function of defoaming.
The thixotropy of silica is the major factor that helps to improve the performances of traditional paints. Take the wall paints used in construction as an example, silica can well prevent paint delamination and sags. Such paints demonstrate great application property and contamination resistance, and they show excellent self-cleaning performance and adhesion. It is reported that they are washable for more than 1,000 times.
◆ The specification, feature and application
|Form||White powder||White powder|
|Sio2 content %||≥99.9||≥99.9|
|BET specific surface area m²/g||260-280||260-280|
|Absorption oil value ml/100g||280-300||280-300|
|Particle size um||5um||45um|
|Heating loss %105℃，2h||3.0-4.0||3.0-4.0|
|Ignition loss %1000℃,2h||2.0-3.0||2.0-3.0|
|Application scopes||Spin printing, defoaming agent, lubricant, unsaturated polyester resin, powder fire extinguisher etc.|
|Features of products||Good hydrophobic, spin printing etc.|