Alfa Chemistry Blog

The IGA gas adsorption system is a precision instrument that uses the gravimetric method to study the adsorption performance of materials. It can automatically and reliably measure the weight change, pressure and temperature of the material, as well as other adsorption and desorption isothermal and pressure curves under different operating conditions, and evaluate the kinetic parameters of the process. The flexible IGA has been widely used to analyze the adsorption of carbon, catalysts, zeolites, and polymers. Device parameters Sample weight range: 0-200 mg. Weight resolution: 0.1 μg. Vacuum degree: less than 10 -6  mbar. Pressure range: 0-2 MPa. Temperature resolution: ±0.1 o C. Temperature range: -196-500  o C. Heating rate: 0.05-50  o C/min. Scope of application It can test the adsorption quality of solid or liquid to gas, and the temperature range is -196-500  o C. The sample can be tested under inert conditions, and the sample can be recovered. It can analyze t...

The resin bond diamond (RBD) is mutil-stalline diamond superhard abrasive specially produced for resin bond abrasives, which is composed of many subcrystals with embedded structure. In most cases, the resin binder system is phenolic resin or polyimide resin. In special cases, special resin binder and suitable additives may be used make the resin bond diamond more widely applicable. Resin bond diamond has irregular crystal shape, rough surface, excellent brittleness and excellent self-sharpening. Characteristics The excellent quality of high grinding efficiency, long life and high finish provides the best performance for resin bond abrasives, the details are as follows: Extremely high grinding efficiency and abrasive utilization : Under a certain grinding force, multicrystal particles are easy to fracture along the interface between subgrains. After the small abrasive subgrains are separated from the crystal particles, the new irregular shape subgrains form sharp edge angles on the cry...