Diatomaceous earth coating additive products have the characteristics of high porosity, strong absorption, stable chemical properties, wear resistance, heat resistance, etc., which can provide excellent surface performance, capacity expansion, thickening, and improved adhesion for coatings. Due to its large pore volume, it can shorten the drying time of the coating film. It can also reduce the amount of resin used and lower costs. This product is considered to be an efficient matting powder for coatings with good cost-effectiveness, and has been recognized by many large coating manufacturers internationallySupplies, widely used in latex paint.

Diatomaceous earth disperser,High rotational speed and shear rate are important for obtaining ultrafine suspensions. According to some industry specific requirements,Cut cancompany inGR2000On the basis of the series, it has been further developedGRS2000Ultra high speed disperser. Its shear rate can exceed100.00 rpmThe speed of the rotor can reach40m/sWithin this speed range, turbulence caused by shear forces combined with specially developed motors can reduce the particle size range to the nanometer level. The shear force is stronger and the particle size distribution is narrower. Due to energy density*,No other auxiliary dispersal equipment is required.

The factors that affect the dispersion and emulsification results are as follows

1The form of emulsion head (batch and continuous) (continuous is better than batch)

2The shear rate of the emulsifying head (the higher, the better the effect)

3The tooth structure of the emulsifying head (divided into initial teeth, middle teeth, fine teeth, ultra-fine teeth, with fine teeth having better effect)

4The residence time of materials in dispersed walls, emulsification and dispersion time (can be regarded as equivalent motors, the smaller the flow rate, the better the effect)

5The more cycles (the better the effect, and by the end of the device's lifespan, it cannot be any better)

Calculation of linear velocity

The definition of shear rate is the relative velocity of the liquid layer between two surfaces.

shear rate(s-1)=vrate(m/s)gfixed-Rotor spacing(m)

As can be seen from the above, the shear rate depends on the following factors:–Linear velocity of rotor–In this situation, the distance between the two surfaces is the rotor-Stator spacing.SIDfixed-The spacing range of the rotor is0.2-0.4 mm, speedV= 3.14XD(rotor diameter)XspeedRPM/60

Ultra high speed disperserHigh rotational speed and shear rate are important for obtaining ultrafine suspensions. According to some industry specific requirements,Cut cancompany inGRS2000On the basis of the series, it has been further developedGRX2000Ultra high speed shearing emulsifier machine. Its shear rate can exceed200.00 rpmThe speed of the rotor can reach66m/sWithin this speed range, turbulence caused by shear forces combined with specially developed motors can reduce the particle size range to the nanometer level. The shear force is stronger, and the particle size distribution of lotion is narrower. Due to energy density*,No need for other auxiliary dispersal equipment,Can reach the level of a regular high-pressure homogenizer400BARParticle size under pressure. Ultra high speed disperser is an efficient, fast, and uniform method for dispersing one or more phases(Liquid, solid)Entering into another immiscible continuous phase(Usually liquid)The equipment of the process. When the fineness of one or more materials reaches the micrometer or even nanometer level, the system can be considered homogeneous. When external energy is input, the two materials recombine into a homogeneous phase. The high shear homogenizer, due to the high tangential velocity generated by the high-speed rotation of the rotor and the strong kinetic energy brought by high-frequency mechanical effects, subjects the material to strong mechanical and hydraulic shear, centrifugal extrusion, liquid layer friction, impact tearing, and turbulence in the narrow gap between the stator and rotor, forming a suspension (solid)/Liquid), lotion (liquid/Liquid) and foam (gas/Liquid). The high shear homogenizer instantly disperses and emulsifies immiscible solid, liquid, and gas phases uniformly and finely under the combined action of corresponding processes and appropriate additives. Through the cyclic operation of the high-frequency pipeline high shear dispersion homogenizer, stable high-quality products are finally obtained.

GRS2000Series Equipment Model Table