Polypropylene amide (Polyscrylamide) called PAM, commonly known as flocculants or cohesion agent, sub-cationic, anionic, the molecular weight between 400-1800 million, product appearance of white or slightly yellow powder, colorless viscous liquid colloidal , soluble in water temperature exceeds 120 ℃, decomposition. Polypropylene amide molecule has a positive gene (-CONH2), can decompose in solution with adsorption and driving suspended bridge, there is a strong flocculation, it is widely used in water treatment and metallurgy, paper, petroleum, chemical, textiles, mineral processing and other fields. Polypropylene amide into: cationic, anionic and nonionic. Polyacrylamide use features a) flocculation: PAM suspended material can call in and through, bridging adsorption, flocculation effect. 2) adhesion: through mechanical, physical, chemical action, from the bonding effect. 3) reduction in resistance: PAM can effectively reduce the fluid friction, water trace PAM can drop 50-80%. 4) Thickening: PAM in neutral and acid conditions are thickening effect, when the PH value of 10 or more easily hydrolyzed PAM. Semi-mesh structure, thickening more apparent. Role of PAM Principle 1) flocculation principle: PAM used for flocculation, and the surface properties floc species, especially dynamic potential, viscosity, turbidity, and the PH value of the suspension, the particle surface zeta potential, particle inhibitor reason to join the opposite surface charge PAM, make dynamic potential decrease cohesion. 2) adsorption bridging: PAM chains fixed to the surface of the particles of different, each particle is formed between the polymer bridges, the particles form aggregates of settlement. 3) Surface: PAM polar groups on the molecules of the various adsorption particles. 4) enhancement: PAM chain and scattered through a variety of mechanical, physical, chemical and other effects, the dispersed phase implicated together to form a network, which in turn has enhanced role. Classification introduced by polyacrylamide molecular nature of electric charge can be divided into cationic polyacrylamide, anionic polyacrylamide, amphoteric and non-ionic polyacrylamide polyacrylamide. Anionic polyacrylamide [Applications] 1, mainly as a flocculant: For suspended particles, coarse, high concentrations of particles with a positive charge, water, PH value is neutral or alkaline wastewater, as anionic polyacrylamide chains containing polar groups can absorb a certain amount of solid particles suspended in water, bridging between the particles forming large flocs. Therefore, it accelerates particles in suspension sedimentation, has a very significant speed up solution promoting filtration and other effects. The product is widely used in chemical industrial wastewater, waste water treatment, municipal sewage treatment. Water industry, high turbidity water purification, Shen Qing, coal washing, dressing, metallurgy, iron and steel industry, zinc, aluminum industry, electronic industry and other water treatment. 2, for the oil industry, oil, drilling mud, waste mud treatment, to prevent water channeling, reduce friction, enhanced oil recovery, EOR has been widely used. 3, for textile sizing agents, slurry, stable performance, falling less pulp, fabric breakage rate, clean cloth. 4, for the paper industry, one is to increase fillers, pigments and other retention rate. In order to reduce the loss of raw materials and environmental pollution; second is to improve the strength of paper (including dry strength and wet strength), in addition, the use of PAM can also improve tear resistance and porosity of paper, so as to improve the visual and printing performance, but also with wrapping paper in the food and tea. 5, other industries, the food industry, for cane sugar, beet sugar juice clarification and syrup production extracted phosphorus float. Clarification enzyme fermentation industry, but also for the recovery of dietary protein, stable quality, good performance, recycling of protein powder to improve the survival rate of chicken and weight gain, no adverse effects on egg production, synthetic resin coatings, construction grouting material blocking water, building materials industry, improve the quality of cement, construction adhesives, caulking repair and plugging agent, soil improvement, electroplating industry, printing and dyeing industry. Cationic polyacrylamide cationic polyacrylamide in an acidic or alkaline medium showed a cationic, it is typically lower than the anionic or nonionic low molecular weight polyacrylamide, sewage cleaning performance of the clear mainly by charge neutralization to obtain . The main function of this type of flocculant flocculation with a negative charge, with turbidity, bleaching function. In the alcohol plant, monosodium glutamate factory, sugar mills, meat plants, beverage plants, printing and dyeing wastewater treatment using other cationic polyacrylamide than with anionic polyacrylamide, nonionic polyacrylamide or inorganic salts effect to the high number of times or several times, because this kind of waste is largely a negative charge. Currently using a water-soluble azo initiators such as AIBA, has been able to increase its molecular weight to ten million or more. Cationic polyacrylamide for high-speed centrifuges, belt filter press, plate and frame filter press sludge dewatering and other special machinery, with the formation of floc fast floc thick, resistant to compression and shear, into the group is good, Easy peel and other characteristics with the cloth. So dehydration rate, filter cake containing fluid is low, with less, can greatly reduce user costs. Can also be used hydrochloric acid, sulfuric acid concentration in the liquid, are separated for purification which contains suspended material. Therefore, the product is widely used in municipal wastewater treatment plants, breweries, food factories, tanneries, paper mills, petrochemical plants, oil, metallurgy, chemical industry and cosmetic treatment sludge dewatering. Non-ionic polyacrylamide Applications] 1, the main as a flocculant: Because of its molecular chain containing a certain amount of gene can be adsorbed polar solid particles suspended in the water, the particles formed between the large flocs. It accelerates particles in suspension settlement, there is a very significant speed up solution promoting filtration and other effects, is widely used in the chemical industry waste water, waste water treatment, municipal sewage treatment. Especially when the acidic wastewater, the use of the most suitable product. With inorganic flocculant iron, polyethylene and aluminum salts used in conjunction. 2, for the oil industry, oil, drilling mud, waste mud treatment, to prevent water channeling, reduce friction, enhanced oil recovery, EOR has been widely used. 3, for textile sizing agents, slurry, stable performance, falling less pulp, fabric breakage rate, clean cloth. 4, for the paper industry, one is to increase fillers, pigments and other retention rate. In order to reduce the loss of raw materials and environmental pollution; second is to improve the strength of paper (including dry strength and wet strength), in addition, the use of PAM can also improve tear resistance and porosity of paper, so as to improve the visual and printing performance, but also with wrapping paper in the food and tea. 5, other industries, the food industry, for cane sugar, beet sugar juice clarification and syrup production extracted phosphorus float. Clarification enzyme fermentation industry, but also for the recovery of dietary protein, stable quality, good performance, recycling of protein powder to improve the survival rate of chicken and weight gain, no adverse effects on egg production, synthetic resin coatings, construction grouting material blocking water, building materials industry, improve the quality of cement, construction adhesives, caulking repair and plugging agent, soil improvement, electroplating industry, printing and dyeing industry. Zwitterionic polyacrylamide Product Form: amphoteric polyacrylamide (ACPAM) appearance of a white powder. Product Features: Zwitterionic polyacrylamide molecules containing cationic groups and because of anionic, cationic flocculant it has the general characteristics of the use, the performance of a more superior performance. Such flocculant available in a wide range of use within the PH value, a higher amount of water treatment, water content than the end of the filter cake can also be used for acid leaching ore or metal-containing acid catalyst from the recovery of valuable metals. Zwitterionic no means anionic, cationic mixed. If the cationic polyacrylamide used in conjunction with anionic polyacrylamide precipitation reaction occurs. So zwitterionic product is ideal. Main purpose: oil plugging agent, and a crosslinking agent, stabilizer, the combined effects of coagulant to produce an important polymeric gels and gel strength resin glue coagulant blocking agent. It does this by laws, the role of physical blockage clogged pore and fracture, scaling, can control the gel time to adapt to different geological clear conditions. All kinds of oil, organic, inorganic, sewage, sewage treatment complex. In the PH fluctuating sewage systems. For sludge dewatering. Used in papermaking additives. Packaging, storage and precautions: This product is non-toxic, pay attention to moisture, rain, avoid sun exposure. Shelf life: 2 years, 25kg paper bag (lined with plastic outer is plastic coated kraft paper bags). Not more than 10 layers piled high