Polyacrylamide (PAM) is a linear polymer with the chemical formula (C3H5NO) n. It is a hard glass solid at room temperature, and its products include glue, latex, and white powder particles, translucent beads, and flakes. Good thermal stability. It can be dissolved in water in any proportion, and the aqueous solution is a uniform and transparent liquid. After long-term storage, the viscosity of the solution will decrease due to the slow degradation of the polymer, especially when the storage and transportation conditions are poor. Polyacrylamide is widely used as a lubricant, suspension agent, clay stabilizer, oil displacement agent, fluid loss additive, and thickening agent in drilling, acidification, fracturing, water shutoff, cementing, secondary oil recovery, and tertiary oil recovery. It is a very important oilfield chemical.
Chemical formula (C3H5NO) n
CAS 9003-05-8
EINECS 231-545-4
Appearance white powder
Polyacrylamide is a white powder or small granular substance with a density of 1.302g/cm3 (23 ℃), a glass transition temperature of 153 ℃, and a softening temperature of 210 ℃. Generally, when dried, it contains a small amount of water, which can quickly absorb water from the environment. The homopolymer separated by the freeze drying method is a white, soft, amorphous solid, but when precipitated from the solution and dried, it becomes a glassy, partially transparent solid, Fully dried polyacrylamide PAM is a brittle white solid. Commercial polyacrylamide is usually dried under moderate conditions, with a water content of 5% to 15%. The polymer film prepared by casting it on a glass plate is a transparent, hard, and fragile solid.
Application area
Water treatment field
Water treatment includes raw water treatment, sewage treatment, and industrial water treatment. Used in combination with activated carbon in raw water treatment, it can be used for coagulation and clarification of suspended particles in domestic water. Using organic flocculant acrylamide instead of inorganic flocculant can increase the water purification capacity by more than 20% even without reforming the sedimentation tank; In wastewater treatment, the use of polyacrylamide can increase the utilization rate of water recycling and can also be used for sludge dewatering; Used as an important formulation in industrial water treatment. The largest application of polyacrylamide in foreign countries is in water treatment, and its application in this field is being promoted in China. The main role of polyacrylamide in water treatment:
(1) Reduce the dosage of flocculant. Under the premise of achieving the same water quality, the use of polyacrylamide as a coagulant aid in combination with other flocculants can greatly reduce the amount of flocculant used; (2) Improve water quality. In drinking water treatment and industrial wastewater treatment, the combination of polyacrylamide and inorganic flocculants can significantly improve water quality; (3) Improve floc strength and sedimentation speed. The flocs formed by polyacrylamide have high strength and good sedimentation performance, thereby improving the solid-liquid separation speed and facilitating sludge dewatering; (4) Corrosion and scale prevention of circulating cooling systems. The use of polyacrylamide can greatly reduce the amount of inorganic flocculants, thereby avoiding the deposition of inorganic substances on the surface of the equipment, and slowing down the corrosion and scaling of the equipment.
The main products of flocculant manufacturer Xinhuan Water Treatment are:
White polyaluminium chloride (food grade),
drinking grade polyaluminium chloride,
industrial grade polyaluminium chloride,
anionic polyacrylamide,
cationic polyacrylamide, nonionic polyacrylamide, petroleum recycling polyacrylamide, oil recovery polyacrylamide, polyacrylamide, polymer flocculant polymer flocculation coagulant, polymeric ferrous sulphate, polymerized iron and aluminium chloride, and other water treatment chemicals. Welcome customers to write to us to negotiate business! Tel/WhatsApp：86 15936201203 Email：maggie@xhwtm.com Contact:Maggie
