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SYLODENT® Silicon Dioxide
Application in oral care:
1、Cleaners Grace manufactures a range of cleaners based on silicone gel and precipitated silica. Different RDA values provide a rich selection of toothpaste formulations. Clean silica produced by Grace covers a range of RDA and PCR range values to achieve the best PCR/RDA ratio.
2、Thickener The primary function of silica in thickening is to increase viscosity without increasing the overall formulation wear (RDA). The thickening silica produced by Grace can be classified according to the material characteristics. For example, the higher the oil absorption value, the greater the viscosity of the formulation. In general, the total silica concentration of the paste formulation should be 15% & mdash; 30%. How this percentage is distributed between the thickener and the cleaner depends on factors such as which silica is selected and the cleaning ability expected to be achieved. The viscosity of the toothpaste will increase with time. After 5-10 days of manufacture, the viscosity of the toothpaste begins to stabilize and does not age further.
3、Optical Properties and Refractive Index Control of Toothpaste The transparency of toothpaste depends to a large extent on whether the humectant in the formulation matches the refractive index (RI) of the thickened clean silica. SYLODENT® silica has a refractive index between 1.44 and 1.46, which is sufficient to provide customers with high-resolution toothpaste.
Specifications and features:
|Product name||Preparation||use||DOA oil absorption value ml/100g||The average particle size μm||Loss on drying % (105 ° C)||Specific surface area m2/g||Remarks|
|SYLODENT® 783||Gel method||Friction agent||61-91||14-19||26-32||-||Efficient universal toothpaste friction agent with excellent cleaning effect, dosage 2% & mdash;25%|
|SYLODENT® SM 500 T||Precipitation||Thickener||190||13.5||＜7.0||125||Efficient toothpaste thickener, dosage 2% & mdash; 15%|
|SYLODENT® SM 850 C||Gel method||Multipurpose||85-115||15||＜7.0||-||Micro-thickening mild abrasive, used in combination with thickening silica, 10% & mdash; 20%|
|SYLODENT® SM 880 T||Precipitation||Thickener||250||18||＜7.0||190||Toothpaste thickener, up to 15%|
|PERKASIL® SM 660||Precipitation||Thickener||220-270||16-20||＜4.0||170-210||High specific surface area. High adsorption capacity for food/feed, personal care and industrial applications|