Performance Measurement Experiment Of SAP Powder

SAP powder is a new type of functional polymer material, which is jointly developed by Japan and the United States. This paper briefly introduces the performance measurement experiment of SAP powder.

1.Measurement experiment of liquid absorption rate of SAP powder

The determination of the liquid absorption rate of SAP powder is a relatively simple process. Just use a pipette to inhale a small amount of ionized water, add it to a 2000 ml beaker, then weigh 0.6 g of resin with a tray balance, and add the weighed resin into After one hour, use 2000 black nylon cloth bags to repeatedly filter the excess ionized water in the beaker until all the ionized water is filtered out. In the same way, use a straw to inhale 3000 ml of sodium chloride. The solution was added to a 4000 ml beaker, then 2.3 grams of resin was weighed with a tray balance, and the weighed resin was added to the beaker. Repeat the filtration until all the ionized water has been filtered out. From the observations of the above two experiments, a formula for the liquid absorption rate is obtained:

Liquid absorption = total amount of solution added - excess ionized water weight / total resin

2. Determination experiment of water absorption rate of SAP powder

The experimental steps for the determination of the water absorption rate of SAP powder are as follows: inhale 1000 ml of sodium chloride solution with a straw, add it into a 3000 ml beaker, then weigh 4.3 grams of resin with a tray balance, and add the weighed resin into the beaker, One and a half hours later, the excess ionized water in the beaker was repeatedly filtered with 1300 black nylon cloth bags until all the ionized water was filtered out. Finally, the relationship formula between water absorption and all time is obtained.

3. Determination of water retention properties of SAP powder

The experimental steps for the determination of the water retention performance of SAP powder are as follows: inhale 1300 ml of sodium chloride solution with a straw, add it into a 4500 ml beaker, then weigh 5.3 grams of resin with a tray balance, and add the weighed resin into the beaker, After forty minutes, use 3400 black nylon cloth bags to repeatedly filter the excess ionized water in the beaker until all the ionized water is filtered out. Observe how the total weight of the solution in the beaker changes over time.

4. Determination experiment of hydrogel rheological properties of SAP powder

The experimental steps for the determination of the hydrogel rheological properties of SAP powder are as follows: inhale 3200 ml of sodium chloride solution with a straw, add it to a 5000 ml beaker, then weigh 1.3 grams of resin with a tray balance, and add the weighed resin into After 50 minutes, use 3100 black nylon cloth bags to filter the excess ionized water in the beaker repeatedly until all the ionized water is filtered out. Finally, observe how the color of the hydrogel changes over time.

SAP powder is widely used in medical and health industries due to its strong water absorption and water retention. Understanding the performance measurement experiments of SAP powder will help people better understand this new material.