Use of polyacrylamide?
I. Product characteristics
1、Flocculation: PAM can make the suspended material through electric neutralization, bridge adsorption, flocculation.
coagulation.
2、Bonding: It can act as a bonding agent through mechanical, physical and chemical action.
3, resistance reduction: PAM can effectively reduce the frictional resistance of the fluid, adding a small amount of PAM can reduce the resistance of 50- -80%.
4, thickening: PAM in neutral and acid conditions have thickening effect, when the PH value in 10 Above PAM is easy to hydrolyze. Thickening will be more obvious when it is semi-reticulate structure.
Second, the product use
1.Water treatment field.
The application of PAM in water treatment industry mainly includes raw water treatment, sewage treatment and industrial 3 aspects of water treatment.
In raw water treatment, PAM is used with activated carbon, etc., which can be used for In raw water treatment, PAM can be used with activated carbon for coagulation and clarification of suspended particles in domestic water;
in wastewater treatment, PAM can be used for sludge dewatering;
in industrial water treatment, PAM can be used for water treatment.
Water; in industrial water treatment, PAM is mainly used as a formulation agent.
In raw water treatment, organic flocculant PAM is used instead of non-organic flocculant.
organic flocculant PAM instead of inorganic flocculant, even if the settling tank is not modified, the water purification capacity can be increased by more than 20%.
More than 20% higher. Therefore, many large and medium-sized cities are currently using PAM as a supplement when water supply is tight or water quality is poor.PAM is used as a supplement.
Industrial wastewater treatment, especially for suspended particles, coarse, concentrated industrial wastewater treatment, especially for suspended particles,
coarse, high concentration, particles with positive charge, water with neutral or alkaline pH value, steel plant wastewater, electroplating plant wastewater, metallurgical wastewater, and water with high concentration.
The best effect is achieved in the treatment of wastewater from steel plants, plating plants, metallurgical wastewater, coal washing wastewater, etc.
In wastewater treatment In wastewater treatment, the use of PAM can increase the use rate of water reuse cycle.
2.Oil recovery field.
In oil exploration, PAM is mainly used as drilling mud material and to improve oil recovery rate.
It is widely used in drilling, completion, cementing, fracturing, enhanced oil recovery and other oilfield operations.
PAM is widely used in drilling, completion, cementing, fracturing, enhanced oil recovery and other oilfield operations, and has the functions of viscosity increase, filtration loss reduction,
rheology adjustment, gelling, flow diversion and profile adjustment.
At present, China’s oilfield exploitation has entered the middle and late stage, in order to improve the recovery rate of crude oil, the main promotion of polymer drive and ternary compound drive.
To improve the recovery rate of crude oil, polymer oil repellent and ternary compound oil repellent technologies are mainly promoted. By injecting PAM water solution,
The oil-water flow rate ratio is improved by injecting PAM water solution to increase the crude oil content in the recovered material.
At present, there are not many foreign applications of PAM in oilfield.
Not many PAMs have been applied in foreign oil fields, but due to the special geological conditions in China, Daqing oil field and Shengli oil field have started to widely .
Due to the special geological conditions in China, polymer oil drive technology has been widely used in Daqing and Shengli oil fields.
3.Paper field.
PAM in the field of papermaking is widely used as a retention agent, filtering aid, equalizer, etc..
It can improve the quality of paper, improve the pulp dehydration performance, improve the fine fiber and filler.
The effect of PAM in paper making depends on its average molecular weight.
The effect of PAM in paper making depends on its average molecular weight, ionic properties, ionic strength and other copolymers.
Activity. Non-ionic PAM is mainly used to improve the filterability of pulp, increase the strength of dry paper,
Fiber and filler retention rate;
anionic copolymer is mainly used as a dry and wet reinforcing agent for paper and Anionic copolymer is mainly used as dry and wet reinforcement and retention agent for paper;
cationic copolymer is mainly used for paper wastewater treatment and filtration aid, in addition to The cationic copolymer is mainly used for paper wastewater treatment and filtration aid,
and also has good effect on improving the retention rate of filler. In addition, PAM is also used in paper wastewater treatment and thousand dimensional recovery.
4.Textile field
In the textile industry, PAM as fabric sizing agent, finishing agent, can produce To produce a soft, wrinkle-resistant,
mildew-resistant protective layer. Using its strong moisture-absorbing characteristics,
it can reduce PAM as a finishing agent can prevent static electricity and flame retardant of fabric;
it can reduce the rate of thread breakage when spinning fine yarn.When used as printing and dyeing auxiliaries, PAM can make products with high adhesion fastness and high brightness,
and can also be used as a non-silicone polymer stabilizer for bleaching.
In addition, PAM can also be used in textile printing and dyeing sewage for efficient purification.
5.
Other fields
In the field of mining and coal washing, PAM can be used as flocculant to promote the settlement of solids in the recovered water of mining and coal washing.
In the field of mining and coal washing, the use of PAM as flocculant can promote the settlement of solids in mining and coal washing recovery water,
so that the water can be clarified and useful solid particles can be recovered to avoid pollution to the environment.
In the sugar industry, PAM can accelerate the sinking of fine particles in cane, promote filtration and improve the clarity of filtrate;
In the pharmaceutical industry, PAM can be used as a flocculant for separating antimicrobial agent, a flocculant for separating antimicrobial agent,
a flocculant for separating antimicrobial agent, and a flocculant for separating antimicrobial agent.
As an adhesive for drug tablets and as a clarifying agent for process water, etc.;
In the building materials industry, PAM can be used as thickening and dispersing agent for paints, cooling agent for sawn stone plates and ceramic
In agriculture, PAM as a highly absorbent material can be used as soil moisturizer in agriculture, PAM is used as a highly absorbent material for soil moisturizing agent and seed cultivation agent, etc.
In the construction industry, PAM can enhance the hardness of gypsum cement and accelerate the dehydration speed of asbestos cement.
In addition, PAM can also be used as a protective coating for natural or synthetic leather.