Application of anionic polyacrylamide (Magnafloc series) in architecture
Anionic polyacrylamide (HPAM) is a water-soluble linear polymer, soluble in water, almost insoluble in benzene, ether, lipids, acetone and other general organic solvents, it has flocculation, thickening, shear, resistance reduction, dispersity and other properties. Mainly used for all kinds of industrial wastewater flocculation sedimentation, precipitation clarification treatment, such as iron and steel plant wastewater, electroplating plant wastewater, metallurgical wastewater, sand washing, coal washing wastewater, textile printing and dyeing, medicine, sugar, sewage treatment, sludge dewatering and so on. It can also be used for drinking water clarification and purification treatment. Because its molecular chain contains a certain number of polar groups, it can adsorb solid particles suspended in water to bridge between particles or condense particles to form large flocs through charge neutralization, so it can accelerate the sedimentation of particles in suspension, and has a very obvious effect of speeding up solution clarification and promoting filtration.
Application scope:
1. Used in textile, printing and dyeing industry: polyacrylamide as fabric treatment sizing agent, finishing agent, can generate a soft, wrinkle resistant, anti mold protective layer. With its high moisture absorption, it can reduce the breaking tension of spinning yarn. Polyacrylamide as a treatment agent can prevent static electricity and flame retardant fabric. Used as printing and dyeing auxiliaries, polyacrylamide can make the product adhesion fastness, high brightness, but also as a bleaching non - silicon polymer stabilizer.
2, water treatment flocculant: due to anionic polyacrylamide molecular chain contains a certain amount of polar base can absorb suspended solid particles in water, so that the formation of large flocculant bridging between particles, for suspended particles coarse, high concentration, particles with positive charge, water PH value is neutral or alkaline sewage. It can accelerate the sedimentation of particles in suspension, accelerate the clarification of solution and promote filtration. The product is widely used in chemical industry waste water, waste liquid treatment, municipal sewage treatment. Tap water industry, high turbidity water purification, sedimentation, coal washing, mineral processing, metallurgy, iron and steel industry, zinc, aluminum processing industry, electronic industry and other water treatment.
3, used in petroleum industry, oil recovery, drilling mud, waste mud treatment, prevent water channelling, reduce friction, improve oil recovery, three oil recovery has been widely used.
4, for paper industry, one is to improve the retention rate of filler, pigment, etc. To reduce the loss of raw materials and environmental pollution; Two is to improve the strength of the paper (including dry strength and wet strength), in addition, the use of PAM can also improve the tear resistance and porosity of the paper, to improve the visual and printing performance, but also used in food and tea wrapping paper.
5, other industries, food industry, used for sugar cane sugar, sugar beet sugar production sugar juice clarification and syrup phosphorus float extraction. Enzyme preparation fermented liquid flocculation clarifying industry, also used in feed protein recovery, stable quality, good performance, recovery of protein powder to chickens and raising the survival rate of weight gain, no adverse effects of egg production, synthetic resin coating, civil water plugging grouting materials, building materials industry, improve the quality of cement, construction adhesive, caulking repair and plugging agent, soil improvement, electroplating industry, printing and dyeing, etc.
6, anionic polyacrylamide in incense industry application is also more and more popular, anionic polyacrylamide product characteristics: good solubility, high viscosity, strong toughness, flammable without (less) smoke, combustion without odor, non-toxic and other characteristics; Product performance is stable, avoid other plant rubber powder and common starch due to different origin, time, uneven bonding quality, in the incense industry production need to repeatedly adjust the formula, so as not to cause product quality instability phenomenon; Incense products have smooth appearance, good shape and are not easy to break; Especially its cold water gelatinization, no need to cook paste, the material directly mixed evenly, add water mixing can be produced, and add water mixed material after a long time to place there will be no material dry hard can not use the phenomenon, effectively save energy and convenient production operation.
