Introduction to the concept and use of special carbon black

Carbon black for special applications Carbon black that imparts special properties to the product. Carbon black is widely used. In addition to rubber products, it has other uses. It is divided into rubber black and special carbon black. Special carbon black can be obtained by post-treatment of disposable carbon black. Post-treatment uses mechanical milling, chemical vapor phase and liquid phase surface oxidation treatment. The oxidants include nitrogen dioxide, ozone, oxygen, air and nitric acid, ammonium nitrate, potassium permanganate, hypochlorous acid, etc., which can change the properties of the original carbon black to meet different requirements. Specialty carbon blacks are used in pigmented, conductive materials such as coatings, inks, resins, black films, toners, films, magnetic tapes, optical disks, and the like. The specific surface area of carbon black is also very important. In the carbon black specific surface area research and related data reports, only the results detected by the BET method are true and reliable, because the specific surface area measurement standards developed at home and abroad are all tested by BET. Method based. (GB.T 19587-2004) - Method for determining the specific surface area of solid materials by gas adsorption BET principle. The specific surface area measurement and analysis has a special surface area tester. The domestically mature one is the dynamic nitrogen adsorption method. Most of the existing domestic instruments can only be directly compared. The F-Sorb 2400 specific surface area analyzer can be realized. The instrument with BET detection function (both direct contrast method), the more important F-Sorb 2400 specific surface area analyzer is the only fully automated and intelligent surface area detection equipment in China, and its test results are highly consistent and stable internationally. Sex is also very good, while reducing human error and improving the accuracy of test results.