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Polyacrylamide - Non-ionic
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Non-ionic polyacrylamide (NPAM) is a high molecular polymer.
Structural Characteristics
The molecular chain of non-ionic polyacrylamide is uncharged and is formed by the polymerization of acrylamide monomers, with no ionized groups on its side chains.
Physical and Chemical Properties
1. Appearance: Usually in white granules or powder form, odorless.
2. Solubility: Easily soluble in water, forming a transparent, viscous solution. The dissolution rate is affected by factors such as water temperature and stirring; higher water temperatures will accelerate the dissolution rate.
3. Stability: Relatively stable at room temperature, but under special conditions such as high temperature, strong acids, or strong bases, the molecular chain may degrade, affecting its performance.
Mechanism of Action
1. Adsorption Bridging Action: Through its long-chain molecular structure, non-ionic polyacrylamide can adsorb onto the surfaces of multiple suspended particles, connecting these particles to form larger flocs, facilitating sedimentation or filtration. For example, in wastewater, it can adsorb suspended silt, organic particles, etc.
2. Thickening Action: When dissolved in liquid, it can increase the viscosity of the liquid, which is important in many industrial applications, such as improving the rheological properties of products like coatings and adhesives.
Main Uses
1. Wastewater Treatment
- It has a good treatment effect on wastewater with a pH close to neutral. It can treat various industrial wastewater, such as that generated from electroplating, dyeing, brewing, etc., by removing suspended solids and some organic matter through flocculation.
- In sludge dewatering, it can effectively improve the properties of sludge and enhance the dewatering efficiency.
2. Textile Dyeing and Finishing
- As a textile dyeing and finishing agent, it can be used in sizing, dyeing, and other processes. In the sizing process, it can smooth the surface of yarns, improving weaving efficiency; in the dyeing process, it helps in the uniform attachment of dyes, enhancing dyeing quality.
3. Paper Industry
- Used as a paper strengthening agent and retention aid. It can enhance the strength of paper, including dry and wet strength; at the same time, it helps retain paper fibers and fillers, improving the quality and production efficiency of paper.
4. Building Materials
- Adding non-ionic polyacrylamide to building materials such as cement mortar and concrete can enhance the adhesion, crack resistance, and waterproofing of the materials, improving their performance.
Packaging: Keep dry, protect from rain, and avoid sunlight exposure. Each bag is 25kg.
Storage and Transportation: Store in a cool, dry, and clean warehouse, and protect from moisture.
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