Nonionic polyacrylamide NPAM for paper making industry

Description

Nonionic polyacrylamide is a water-soluble polymer or polyelectrolyte. Because its molecular chain contains a certain number of polar groups, it can adsorb solid particles suspended in water, bridge the particles, or aggregate particles to form large floes by charge neutralization.

Therefore, it can accelerate the sedimentation of the particles in the suspension, have a very obvious effect of speeding up the solution clarification, and promote filtration and other effects.

Application of nonionic polyacrylamide

Nonionic polyacrylamide is mainly used for flocculation and sedimentation, sedimentation and clarification of various industrial wastewater. Such as papermaking and pulp wastewater wastewater treatment.

The main uses of Nonionic polyacrylamide

Polyacrylamide is used for papermaking reinforcement to improve the wet and dry strength of paper.

For example, the addition of PAM-CSG-1 products during the papermaking process can increase the wet paper tension by 10-20 times and the dry paper tension by 50%. It is mainly used for kraft paper, map paper, advertising paper, and photo paper.

Functions of NPAM

Nonionic polyacrylamide flocculates extremely well because it has:

1. Clarification and purification effect.
2. Settlement promotion effect.
3. Filtration promotion effect.
4. Thickening effect and other effects.

Instructions

1. When in use, prepare a 0.1% concentration aqueous solution, and it is better to use neutral water without salt.
2. When dissolving, sprinkle non-ionic polyacrylamide evenly into the stirring water, and control the stirring speed at 100 ~ 300rpm. Appropriate heating (<60 ° C) can accelerate dissolution.
3. Adjust the PH value of the treated liquid to make the non-ionic polyacrylamide fully function (select the optimal pH value and the amount of non-ionic polyacrylamide through experiments.)
4. When adding non-ionic polyacrylamide solution, it should speed up the mixing with the liquid to be treated. After the floc appears, slow down the stirring speed in order to facilitate the growth of floc and accelerate the sedimentation.

Precautions

1. The operator should wear protective equipment. After skin contact, wash with water.
2. In the field of use, often rinse with water to prevent slipping injuries.
3. Nonionic polyacrylamide should be sealed and stored in a cool and dry place.