Non-Ionic Polyacrylamide (NPAM) Product Introduction
Product Uses:
Non-Ionic Polyacrylamide (NPAM) is a water-soluble polymer or polyelectrolyte utilized in the flocculation and sedimentation of various industrial wastewaters, clarification processes, papermaking and pulp wastewater treatment, as well as wastewater treatment in mining and metal smelting operations. Through the adsorption of suspended solid particles in water due to the presence of polar groups in its molecular chain, NPAM enables particle bridging or charge neutralization, leading to the formation of large floccules. Consequently, it accelerates the settlement of particles in suspensions, significantly enhancing solution clarification and facilitating filtration processes.
Applications of Non-Ionic Polyacrylamide (NPAM):
Wastewater Treatment Agent: When suspended wastewater is acidic, NPAM serves as an ideal flocculating agent. It facilitates the adsorption and bridging of suspended particles, resulting in flocculation and precipitation, thereby purifying the wastewater. It can also be used for tap water purification, especially when combined with inorganic flocculants. Remarkable effects are observed in water treatment for coal washing, mineral processing, leather tanning, electroplating, copper smelting, and ironworks.
Textile Industry Auxiliary: By adding certain chemicals, NPAM can be formulated into chemical materials for textile sizing.
Sand Fixation and Prevention: Dissolving NPAM to a 0.3% concentration and adding a crosslinking agent, it can be sprayed onto deserts to prevent sand movement and stabilize sand dunes.
Soil Moisture Retention Agent: Used as a soil moisture retention agent and a basic raw material for various modified polyacrylamides.
Product Characteristics:
As a polymer or polyelectrolyte, Non-Ionic Polyacrylamide (NPAM) contains polar groups in its molecular chain that adsorb suspended solid particles in water, enabling particle bridging to form large floccules. It accelerates particle settlement in suspensions, significantly enhancing solution clarification and facilitating filtration. NPAM is widely used in the treatment of chemical industrial wastewaters and effluents, as well as municipal wastewater treatment. It is particularly suitable for acidic wastewaters and can be used in combination with inorganic flocculants such as polyferric sulfate and polyaluminum chloride.
Chemical Properties:
PH (0.1% Solution): 7.0 ~ 8.0
Ionicity: Non-Ionic
Aqueous Solution Viscosity (0.1% Solution): 300 ~ 550 CPS
Moisture Content: Below 10%
Residual Monomer: Below 0.2%
Physical Properties:
The physical properties of Non-Ionic Polyacrylamide (NPAM) are primarily determined by its behavior in aqueous solutions. Due to the presence of amide groups or ionic moieties in its molecular chain, NPAM exhibits high hydrophilicity and can be dissolved in water in various proportions. NPAM aqueous solutions demonstrate good tolerance to electrolytes, such as ammonium chloride and sodium sulfate, and are compatible with surfactants.
Other Characteristics:
Excellent Water Solubility: NPAM can be fully dissolved in cold water.
Remarkable Flocculation Effect with Minimal Dosage: Adding only a small amount of NPAM, typically within the range of 0.0110ppm (0.0110g/m³), can achieve significant flocculation results.
Synergistic Effect with Inorganic Flocculants: When used in combination with inorganic flocculants such as polymeric ferric sulfate, polymeric aluminum chloride, and iron salts, NPAM can demonstrate even greater effectiveness.
Non-Ionic Polyacrylamide (NPAM) is a versatile and high-performance product suitable for a wide range of applications, including wastewater treatment, textile sizing, sand fixation, and soil moisture retention. Its unique chemical and physical properties make it an ideal choice for enhancing flocculation, clarification, and filtration processes in various industries.
Packaging and Storage:
NPAM is a non-toxic powdered or granular product. It is susceptible to air exposure, which may affect its quality. Therefore, it should not be stored in damp or sun-exposed environments. During loading, unloading, and transportation, it is advisable to avoid contact with metals like iron and copper. Diaphragm pumps and piston pumps are preferred for conveying. The storage life of solid granular or powdered polyacrylamide is 2 years.
Detailed Parameters of Non - ionic Polyacrylamide
| Product Name | Non - ionic Polyacrylamide |
|---|---|
| Appearance | Powder White Granules |
| Molecular Weight (×10,000) | 300 - 1200 |
| Hydrolysis Degree (%) | 5 - 17 |
| Solid Content (%) | ≥ 88 |
| Water - insoluble Matter (%) | ≤ 0.3 |
| Dissolution Speed (min) | ≤ 60 |
| Residual Monomer Content (%) | ≤ 0.2 |
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