Anionic and Cationic Polyacrylamide Pam Textile Field Use
Anionic and cationic polyacrylamide PAM has good uniformity and flocculation performance, and is easily soluble in water. High-speed centrifugal pumps should also be avoided during transportation. Stirring conditions. Pigment retention rate such as use effect, but the performance index is to further determine the use of the product on site. Tap water can be heated appropriately. It can be dissolved in water in proportion. Dissolution temperature, distinguished by yin and yang reaction. It is more suitable to use piston pumps or diaphragm pumps to increase filler. Avoid contact with iron. Dissolve and add about 0.05-0.5% aqueous solution.
Anionic and cationic polyacrylamide PAM
1. Flocculation: PAM can make suspended matter through electrical neutralization, bridging adsorption, and flocculation.
2. Adhesion: It can play a bonding role through mechanical, physical, and chemical effects.
3. Resistance reduction: PAM can effectively reduce the friction resistance of the fluid. Adding a trace of PAM to water can reduce resistance by 50-80%.
4. Thickening: PAM has a thickening effect under neutral and acidic conditions. When the pH value is above 10, PAM is easily hydrolyzed. When it is in a semi-net structure, the thickening will be more obvious.
Use in the textile field
In the textile industry, PAM is used as a sizing agent and finishing agent for fabric post-treatment to generate a soft and wrinkle-resistant protective layer. Its strong hygroscopicity can reduce the breakage rate during spinning; PAM as a post-treatment agent can prevent static electricity and flame retardancy of fabrics; when used as a printing and dyeing auxiliary, PAM can make the product have a strong adhesion and high brightness, and can also be used as a non-silicon polymer stabilizer for bleaching; in addition, PAM can also be used for textile printing and dyeing wastewater purification.
How to use polyacrylamide flocculant and precautions:
1. It is advisable to prepare a 0.2% aqueous solution with practical neutral and salt-free water.
2. Because this product is suitable for a wide range of water pH values, the general dosage is 0.1-10ppm (0.1-10mg/L).
3. Fully dissolved. When dissolving this product, attention should be paid to the fact that the flow rate of the automatic dosing device should not be too fast to prevent polyacrylamide from agglomerating, fish-eye phenomenon, and pipe blockage, which will cause unnecessary trouble.
4. The stirring speed is generally 200 rpm, and the time is not less than 60 minutes. Properly increasing the water temperature by 20-30 degrees Celsius can accelerate dissolution. The highest temperature of the liquid should be less than 60 degrees.