HWP25Z
It has excellent glue protective performance and tensiometric property performance, especially it can gained polymerization stability. It is easy to control the size of grain diameter of particulate matter. It has well desorption monosomy and well absorbency of plasticizer. It is even and multiaperture, and the quality index is as follow:
Item |
Index |
HWP25Z |
Appearance |
Solid white powder |
Viscositympa•s |
44.0-52.0 |
Saponification degree%(mol/mol) |
78.5-81.5 |
PH value |
5-7 |
Fugitive constituent% |
≤5 |
Ash content% |
≤0.5 |
Properties: Water-soluble: soluble in water with transparent water solution. Chemical resistance: at usual temperature, the PH value of its water solution is about 5-7 with steady viscosity. It will not be impacted by weak acid, weak alkali and organic solvent (ester, ketone, higher alcohols and hydrocarbon) with high oil-resistance. Compatibility: it is dissolving in starch, synthetic resin, cellulose derivative and all sorts of surfactant.Stability. Using method: 1, Weight: dosage is up to polymerization formulation and solution concentration 2, Put the weighted cool water with the temperature lower than 30℃ into the dissolving tank 3, Start to stir it 4, Put it into dissolving tank slowly in case of caking. 5, Stirring it to make it fully swelling. 6, Heat it gradually and make the temperature to 70-80°C in 30 minutes (Notice: do not heat it quickly and the temperature should not be so high. If the temperature is higher than 80°C, it will appear precipitate.), and then keep stirring for 60 minutes. 7, Cooling: Cool the solution to below 30°C, and put the transparent solution after filtration into storage tank, then get some of it to analyze its solid content. (Notice: when it is stored in hot summer, the solution is easy to turn white when the temperature is higher than 40°C. So, it is feasible to set the pipe coil to below 25-30°C to guarantee the polymerization process.) |