Langyou Chemical
PRODUCTS
Water Injection Anti-Expansion Agent(Cationic Ammonium Polymer)
|
HS Code |
561758 |
| Appearance | usually a liquid |
| Cationic Nature | cationic ammonium polymer |
| Anti Expansion Mechanism | adsorbs on clay surfaces to prevent swelling |
| Solubility | good solubility in water |
| Ph Stability | stable within a certain pH range |
| Thermal Stability | can withstand high temperatures in reservoir |
| Viscosity Influencing | adjusts the viscosity of injected water |
| Compatibility | compatible with other reservoir chemicals |
| Dosage Range | specific dosage according to reservoir conditions |
| Corrosion Inhibition | has certain corrosion - inhibiting effect on pipelines |
As an accredited Water Injection Anti-Expansion Agent(Cationic Ammonium Polymer) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 25 - kg bags of Water Injection Anti - Expansion Agent (Cationic Ammonium Polymer) packaging. |
| Storage | The Water Injection Anti - Expansion Agent (Cationic Ammonium Polymer) should be stored in a cool, dry, and well - ventilated area. Keep it away from heat sources, open flames, and direct sunlight. Store in tightly sealed containers to prevent moisture absorption and contamination. Avoid storing near oxidizing agents or substances that may react with it. |
| Shipping | The Water Injection Anti - Expansion Agent (Cationic Ammonium Polymer) is shipped in sealed containers, ensuring protection from moisture and contamination. Shipment follows strict chemical - handling regulations to maintain product integrity. |
Competitive Water Injection Anti-Expansion Agent(Cationic Ammonium Polymer) prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615365186327 or mail to sales3@liwei-chem.com.
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Tel: +8615365186327
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Historical Development
Water injection of anti-swelling agent (cationic ammonium polymer), although the name of this thing was not ancient, but the relevant principles have long been traced. In the past, water control, land reclamation, the preservation of soil, and the seepage of water have all been explored.
And today's technology is prosperous, this agent is the birth. At the beginning, the researchers thought hard and wanted to find things to fix the soil to prevent swelling. After repeated tests, they got this cationic ammonium polymer. Its use is also at the beginning, and its effect is beginning to appear, and everyone gradually realizes its ability.
Years have changed, and the researchers have been unremitting to optimize its properties and expand its use. Since the beginning of the trial, to be widely applied in oil fields, farmland and other areas, this agent is increasingly apparent, in the protection of water and soil, the contribution is considerable, become an indispensable thing in today's water conservancy and geotechnical.
And today's technology is prosperous, this agent is the birth. At the beginning, the researchers thought hard and wanted to find things to fix the soil to prevent swelling. After repeated tests, they got this cationic ammonium polymer. Its use is also at the beginning, and its effect is beginning to appear, and everyone gradually realizes its ability.
Years have changed, and the researchers have been unremitting to optimize its properties and expand its use. Since the beginning of the trial, to be widely applied in oil fields, farmland and other areas, this agent is increasingly apparent, in the protection of water and soil, the contribution is considerable, become an indispensable thing in today's water conservancy and geotechnical.
Product Overview
Nowadays, there is something called Water Injection Anti-Expansion Agent (Cationic Ammonium Polymer), which is a water injection anti-swelling agent (cationic ammonium polymer). Its specific properties can effectively inhibit the expansion of formation clay during water injection operations, keep pores smooth, and improve water injection efficiency. This agent is based on cationic ammonium polymer and has strong adsorption properties. It can firmly adhere to the surface of clay particles, neutralize charges, and prevent clay expansion. It is also widely used and indispensable in all fields of oil field exploitation. With its excellent performance, it has made great contributions to the stable production and increase production of oil and gas fields, which is actually a powerful tool for water control and anti-swelling in the industry.
Physical & Chemical Properties
Nowadays, it is called "Water Injection Anti - Expansion Agent (Cationic Ammonium Polymer) ", and its physical and chemical properties are crucial. This agent has the properties of a cationic ammonium polymer and is effective in water injection operations. Looking at its physical properties, it is either powdery or granular, pure in color and uniform in texture, easily soluble in water, and has good dispersion. In terms of its chemical properties, it has strong stability and can resist the erosion of many chemical substances. In water, it can effectively inhibit the expansion of clay. By combining its cationic properties with the anion check point on the surface of the clay, it forms a stable structure, prevents the clay from expanding due to water intrusion, and guarantees the water injection efficiency and reservoir penetration rate. It is of great benefit to the development of oil fields. It is also an indispensable chemical agent.
Technical Specifications & Labeling
Nowadays, there is a product name Water Injection Anti-Expansion Agent (Cationic Ammonium Polymer), which is very important in terms of its technical specifications and identification (product parameters). Its technical specifications need to be specific, the proportion of ingredients is accurate, and the performance is stable and reliable. In the label, the product name, ingredients, scope of application, etc. should be clear and clear. In this way, this product can be used without the risk of mistakes, and it can play its due role. In related affairs, it can achieve the expected goal, ensuring that everything goes smoothly and there are no mistakes or omissions.
Preparation Method
The method of making water and injecting anti-swelling agent (cationic ammonium polymer) is related to raw materials and production process, reaction steps and catalytic mechanism. First, take an appropriate amount of cationic ammonium raw materials and mix them with other auxiliaries in a certain ratio. In a special reactor, control the appropriate temperature and pressure to start the polymerization reaction. At the beginning, the temperature is slowly raised to allow the raw materials to blend and interact, during which the reaction state is carefully observed and the conditions are fine-tuned in a timely manner. When the reaction reaches a specific stage, a catalyst is added to accelerate the reaction process and strengthen the molecular polymerization. Then, through fine filtration, purification and other processes, impurities are removed to obtain pure water and inject anti-swelling agent. This preparation method strictly follows the regulations to ensure product quality and performance.
Chemical Reactions & Modifications
The anti-swelling agent of Guanfu water injection is a cationic ammonium polymer. Its chemical response and change are related to the importance of oil and gas exploitation. In the past, rock formations were prone to swelling in contact with water, causing pores to be blocked and flow channels to be blocked. When this agent enters, it can be affinity with clay minerals with the properties of ammonium groups. Cations gather on its surface, repel each other electrostatically, and prevent the expansion of clay. And build bridges between molecules to stabilize the structure and prevent change. Applying this agent in a well is like an ancient good ruler, stabilizing the car and controlling the route. Make the water flow smoothly, and the oil can escape. It should be applied to rock formations, like spring breeze and rain, moist and moderate, changing and orderly, ensuring smooth exploitation and energy economy.
Synonyms & Product Names
The similar words "water injection and anti-swelling agent (cationic ammonium polymer) " in the Compendium of Materia Medica and the trade name
water injection and anti-swelling agent (cationic ammonium polymer) are quite useful in oil extraction today. Although there was no such name in the past, the same principle has long been traced.
Looking at ancient books, such as "Qi Min Yao Shu", there are many discussions on the way of water and soil in agriculture. At that time, although it did not directly refer to water injection and anti-swelling agent (cationic ammonium polymer), the method of retaining water in the soil and preventing its expansion and loss is the same as today's principle. In agriculture, soil expansion makes fertility easy to disperse. Now in oil well water injection operations, if the formation expands, it will also damage the efficiency of oil production.
This agent is made of cationic ammonium polymer, which can stabilize the formation and prevent it from expanding due to water. Although there was no such thing in ancient times, the method of controlling water and preserving land, or using clay, plant ash, etc. to stabilize water and soil, is the same as the principle of today's water injection and anti-swelling agent (cationic ammonium polymer) to protect the formation. It is the same for the safety of water and soil and the smooth operation.
water injection and anti-swelling agent (cationic ammonium polymer) are quite useful in oil extraction today. Although there was no such name in the past, the same principle has long been traced.
Looking at ancient books, such as "Qi Min Yao Shu", there are many discussions on the way of water and soil in agriculture. At that time, although it did not directly refer to water injection and anti-swelling agent (cationic ammonium polymer), the method of retaining water in the soil and preventing its expansion and loss is the same as today's principle. In agriculture, soil expansion makes fertility easy to disperse. Now in oil well water injection operations, if the formation expands, it will also damage the efficiency of oil production.
This agent is made of cationic ammonium polymer, which can stabilize the formation and prevent it from expanding due to water. Although there was no such thing in ancient times, the method of controlling water and preserving land, or using clay, plant ash, etc. to stabilize water and soil, is the same as the principle of today's water injection and anti-swelling agent (cationic ammonium polymer) to protect the formation. It is the same for the safety of water and soil and the smooth operation.
Safety & Operational Standards
Code for safety and operation of water injection anti-swelling agent (cationic ammonium polymer)
Water injection anti-swelling agent (cationic ammonium polymer) is of great significance in the water injection operation of oil reservoirs. In order to ensure its safe use and orderly operation, this code is hereby established.
#1. Storage requirements
This product should be placed in a dry, cool and well-ventilated place, away from fire and heat sources. The storage temperature should preferably not exceed 40 degrees Celsius to prevent product deterioration caused by direct sunlight. It needs to be stored separately with strong oxidants, strong acids and strong alkalis to avoid reactions. The storage place should be clearly marked with warning signs, and unrelated people should not enter.
#2. Transportation regulations
Ensure that the packaging is intact and leak-proof during transportation. Choose a vehicle with chemical transportation qualifications. Transportation personnel should be familiar with product characteristics and emergency treatment methods. Avoid severe bumps and collisions during transportation. Pay attention to shading and cooling in summer transportation, and pay attention to antifreeze in winter.
#3. Method of operation
During operation, the operator must wear protective clothing, protective gloves and protective glasses, and wear a gas mask if necessary. The configuration solution should be in a well-ventilated site. Slowly add the product to the water according to the specified ratio, and stir at a uniform speed to ensure uniform dissolution. The injection process strictly controls the flow rate and pressure. Operate according to the established plan. Monitor various parameters in real time. If there is any abnormality, adjust it immediately.
#4. Emergency measures
If you accidentally come into contact with the skin, quickly rinse with a lot of water, and if you still feel unwell, seek medical attention immediately. If you splash into your eyes, immediately rinse with flowing water for more than 15 minutes, and seek medical attention as soon as possible. In the event of a leak, quickly evacuate personnel, isolate the scene, and emergency personnel wear protective equipment to deal with it. A small amount of leakage should be absorbed with inert materials such as sand and vermiculite; if there is a large amount of leakage, build an embankment for containment, and transfer it to a special container with an explosion-proof pump, and the residual liquid should be properly disposed of.
Water injection anti-swelling agent (cationic ammonium polymer) is of great significance in the water injection operation of oil reservoirs. In order to ensure its safe use and orderly operation, this code is hereby established.
#1. Storage requirements
This product should be placed in a dry, cool and well-ventilated place, away from fire and heat sources. The storage temperature should preferably not exceed 40 degrees Celsius to prevent product deterioration caused by direct sunlight. It needs to be stored separately with strong oxidants, strong acids and strong alkalis to avoid reactions. The storage place should be clearly marked with warning signs, and unrelated people should not enter.
#2. Transportation regulations
Ensure that the packaging is intact and leak-proof during transportation. Choose a vehicle with chemical transportation qualifications. Transportation personnel should be familiar with product characteristics and emergency treatment methods. Avoid severe bumps and collisions during transportation. Pay attention to shading and cooling in summer transportation, and pay attention to antifreeze in winter.
#3. Method of operation
During operation, the operator must wear protective clothing, protective gloves and protective glasses, and wear a gas mask if necessary. The configuration solution should be in a well-ventilated site. Slowly add the product to the water according to the specified ratio, and stir at a uniform speed to ensure uniform dissolution. The injection process strictly controls the flow rate and pressure. Operate according to the established plan. Monitor various parameters in real time. If there is any abnormality, adjust it immediately.
#4. Emergency measures
If you accidentally come into contact with the skin, quickly rinse with a lot of water, and if you still feel unwell, seek medical attention immediately. If you splash into your eyes, immediately rinse with flowing water for more than 15 minutes, and seek medical attention as soon as possible. In the event of a leak, quickly evacuate personnel, isolate the scene, and emergency personnel wear protective equipment to deal with it. A small amount of leakage should be absorbed with inert materials such as sand and vermiculite; if there is a large amount of leakage, build an embankment for containment, and transfer it to a special container with an explosion-proof pump, and the residual liquid should be properly disposed of.
Application Area
Water injection of anti-swelling agent (cationic ammonium polymer) is widely used in various fields. Guanzhi oil reservoir mining, water injection operation, clay minerals in contact with water easily swelled, dispersed, resulting in reduced penetration rate, loss of recovery. This agent can use cation and clay surface negative electricity neutralization, stable structure, good anti-swelling effect, make the oil flow smooth, increase the recovery rate.
re-look at geological drilling, drilling in contact with water-sensitive strata, the hole wall is easy to instability. With this agent, can fix the clay, keep the hole wall intact, facilitate drilling process smooth. And in terms of soil improvement, can protect the soil particle structure, prevent excessive swelling and compaction in contact with water, help plant root growth, improve soil fertility. From this perspective, water injection anti-swelling agent (cationic ammonium polymer) has a key function in many application fields such as oil reservoir, drilling, soil, etc.
re-look at geological drilling, drilling in contact with water-sensitive strata, the hole wall is easy to instability. With this agent, can fix the clay, keep the hole wall intact, facilitate drilling process smooth. And in terms of soil improvement, can protect the soil particle structure, prevent excessive swelling and compaction in contact with water, help plant root growth, improve soil fertility. From this perspective, water injection anti-swelling agent (cationic ammonium polymer) has a key function in many application fields such as oil reservoir, drilling, soil, etc.
Research & Development
Today, there are developers who are focusing on the research and development of Water Injection Anti-Expansion Agent (Cationic Ammonium Polymer). This agent is related to water injection and anti-swelling, which is quite critical in the industry.
At the beginning of research and development, various physical properties were carefully investigated, its chemical composition was analyzed, and its reaction mechanism was explored. After several years of research and adjustment, many experiments were made. At the beginning, the effect was not ideal, but it was not discouraged, and it was repeatedly thought and improved.
Gradually gained, the performance of this agent gradually improved, and under simulated working conditions, the anti-swelling effect was significant. Looking at its microscopic structure, the molecular structure changes ingeniously, which is in line with the effect of swelling soil. Now that it has reached a critical juncture, it is hoped that it can be further optimized so that it can play a stable role in complex strata environments, seek long-term development, and hope to add new achievements to the industry and promote progress in this field.
At the beginning of research and development, various physical properties were carefully investigated, its chemical composition was analyzed, and its reaction mechanism was explored. After several years of research and adjustment, many experiments were made. At the beginning, the effect was not ideal, but it was not discouraged, and it was repeatedly thought and improved.
Gradually gained, the performance of this agent gradually improved, and under simulated working conditions, the anti-swelling effect was significant. Looking at its microscopic structure, the molecular structure changes ingeniously, which is in line with the effect of swelling soil. Now that it has reached a critical juncture, it is hoped that it can be further optimized so that it can play a stable role in complex strata environments, seek long-term development, and hope to add new achievements to the industry and promote progress in this field.
Toxicity Research
The toxicity of Water Injection Anti-Expansion Agent (Cationic Ammonium Polymer) was studied. Its chemical structure was observed in detail, and the interaction of various components was analyzed. The reaction of contact with biological tissues and cells was observed by a variety of experimental methods. Fresh biological samples were taken and an appropriate amount of the agent was dripped to observe its physiological changes, such as metabolic rate and cell activity. The cell culture method was also used to observe the effect of the agent on cell proliferation and differentiation. After many experiments, the preliminary conclusion was reached: this agent has a certain impact on biological cells at a specific concentration, but the exact degree of toxicity still needs more in-depth experiments, taking into account environmental factors, individual differences and other variables, in order to accurately determine the basis for subsequent application and safety assessment.
Future Prospects
Guanfu Water Injection Anti-Expansion Agent (Cationic Ammonium Polymer) This product is a newcomer in the chemical industry. Its future prospects are unlimited.
Today, this agent has emerged in the reservoir water injection operation. It can effectively inhibit the expansion of formation clay, keep pores smooth, improve water injection efficiency, and has a significant effect.
Looking to the future, as oil extraction expands to deep and complex reservoirs, its performance requirements will be more stringent. The developer should refine the process to improve its temperature resistance and salt resistance, so that it can play stably in extreme environments. And pay attention to environmental protection and reduce the impact on the formation and surrounding environment. Over time, this agent will surely make a splash in the field of reservoir development, adding to the energy industry and becoming an indispensable weapon for future mining.
Today, this agent has emerged in the reservoir water injection operation. It can effectively inhibit the expansion of formation clay, keep pores smooth, improve water injection efficiency, and has a significant effect.
Looking to the future, as oil extraction expands to deep and complex reservoirs, its performance requirements will be more stringent. The developer should refine the process to improve its temperature resistance and salt resistance, so that it can play stably in extreme environments. And pay attention to environmental protection and reduce the impact on the formation and surrounding environment. Over time, this agent will surely make a splash in the field of reservoir development, adding to the energy industry and becoming an indispensable weapon for future mining.
Where to Buy Water Injection Anti-Expansion Agent(Cationic Ammonium Polymer) in China?
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As a leading Water Injection Anti-Expansion Agent(Cationic Ammonium Polymer) supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.
What are the main components of water-implanted anti-swelling agents (cationic ammonium polymers)?
The main components of the water-implanted anti-riot agent (cationic polymer) are particularly critical. This anti-riot agent mainly contains cationic polymers, which are a class of polymer compounds with special structures and properties.
Cationic polymers have cationic groups on the molecular chain. Such groups give polymers many unique properties and play a significant role in anti-riot agents. Its charge characteristics can interact with many substances, such as binding to negatively charged surfaces or particles, so as to play a role.
Common cationic polymer components, containing quaternary ammonium salt polymers. Quaternary ammonium salt groups have strong positive electricity and chemical properties are stable. The polymer constructed with this as a structural unit can be effectively dispersed in aqueous media and has good affinity with various substances. It can be adsorbed on the target surface, changing the surface properties, such as increasing the surface charge density, affecting the interaction between particles, and achieving the purpose of riot control.
In addition, there are also polymers containing cationic groups such as pyridine salts. The pyridine salt structure imparts specific chemical activity and selectivity to the polymer, and can react or combine with specific substances in different scenarios. Such cationic polymers are prepared by special processes and injected into the riot control agent system in water. They cooperate with each other to use their cationic properties to regulate the physical and chemical properties of the system, such as rheological properties, interface properties, etc., and finally achieve efficient riot control functions and ensure the safety and stability of the use scene.
What is the scope of application of water implantation anti-swelling agent (cationic ammonium polymer)?
The scope of application of water injection into riot devices (cationic polymers) is as follows:
This device is mostly used in places where public security is maintained. In places where crowds gather, if there is a dispute, riots will erupt. Water injection into riot devices can use its spray power to disperse the crowd and restore peace to the scene. If in a market, people have a dispute over something, the situation will cause chaos. Injecting water into riot devices and spraying it can wake up everyone and temporarily put the dispute to rest.
When patrolling streets and alleys, if you encounter lawbreakers, do something wrong, and resist capture, this device can also be effective. Officers can use it to spray water and control their movements, making it difficult for them to escape. In case of thieves fleeing in streets and alleys and resisting stubbornly, the flow of water injected into the riot device can stop their actions and help the police to arrest them.
Furthermore, during the assembly and celebration, the crowd is surging. In order to prevent unexpected changes and riots, the water injected into the riot device is always ready and can be used as a preventative device. Once something happens, it can be used quickly to maintain the order of the scene. Such as a festival, everyone celebrates. If there is a troublemaker, this device can be dealt with in time to ensure the safety of one party.
However, its use is also limited. In the open wilderness, when the wind is strong, the spray of water is easily disturbed by the wind, and it is difficult to be accurate and far, and the effect may be reduced. And if you are faced with a stubborn person and hold sharp-edged equipment, it is difficult to deter the water-injected riot device, and you need to use it in combination with other things before you can defeat the enemy.
In summary, water-injected riot devices can be used in scenes such as public security, street patrols, assemblies and celebrations.
What is the use of water injection anti-swelling agent (cationic ammonium polymer)?
When water is injected into the riot control device (cationic resin polymer), its usage is as follows:
First place the riot control device securely, so that the body of the device is correct and unbiased. Take an appropriate amount of water and slowly pour it into the injector. When injecting water, pay attention to the speed of water flow, and do not be too hasty to prevent impact on the internal structure and damage its efficacy.
When the water injection is nearly full, but not full, cover the cover tightly to ensure that there is no leakage. The key to sealing is to maintain the internal pressure so that the riot control device can operate normally when it is enabled.
If the cationic resin polymer in the riot control device appears to be agglomerating, it is advisable to shake the body before injecting water to make the agglomeration loose. In this way, the polymer can be fully in contact with the water and play a better role.
When using, hold the riot device tightly, choose the appropriate position according to the actual needs, and press the start device. Water is ejected from the device, which can form an impact on the target to achieve the purpose of riot control.
After each use, check the water volume in the device, and make up for it if it is insufficient. And it is necessary to check the condition of the internal cationic resin polymer regularly. If there is any deterioration or failure, it should be replaced in time to ensure that the riot device is always available and always available.
What are the performance advantages of water-implanted anti-swelling agents (cationic ammonium polymers)?
The performance advantages of water-implanted anti-swelling agent (cationic polymer) are as follows:
First, it has strong adsorption. The cationic group contained in this agent can be closely attracted to the negative charge on the surface of the clay particles, such as tenon-mortise fit, firmly attached to the clay surface. In this way, it can effectively inhibit the expansion of clay particles due to hydration. It is like putting a protective armor on the clay, making it difficult to expand freely in contact with water and maintaining its structural stability.
Second, it has good selectivity. The anti-swelling agent is among many ions and has a high degree of selective adsorption to clay minerals. It can accurately identify clay particles and preferentially bind to them, while having little effect on other substances. As if it is a unique eye, it only focuses on the clay and does not disturb others. It guarantees that when dealing with the problem of clay expansion, it will not cause negative interference to other components in the system and maintain the original characteristics of the system.
Third, the stability is quite good. In the common temperature and pH range, this anti-swelling agent can maintain stable performance. No matter in a hot place, when the temperature rises, or when the acid and alkali environment changes, its molecular structure is not easily changed, and the anti-swelling effect is not reduced. Like a determined person, who is not afraid of changes in the external environment, always sticks to his post, continues to play the role of inhibiting clay expansion, and ensures the smooth progress of related operations.
Fourth, excellent compatibility. The anti-swelling agent can coexist harmoniously with common oilfield chemicals, such as corrosion inhibitors, fungicides, etc., to play a role together. As if in harmony, they cooperate with each other tacitly, without conflict or antagonism. In complex oilfield operating environments, when multiple chemicals are used together, they can synergize, not only achieving the purpose of anti-swelling, but also taking into account the needs of other operations to improve the overall operating effect.
What are the precautions for storing and transporting water-injected anti-swelling agents (cationic ammonium polymers)?
There are many things to pay attention to during storage and transportation of water-implanted anti-expansion devices (cationic polymers).
First, the material of the anti-expansion device must be suitable for water and cationic polymers. If the material is improper, the anti-expansion device may be damaged by erosion, which will affect the storage and transportation safety of the cationic polymer. For example, if the anti-expansion device is made of non-corrosion-resistant materials, long-term contact with cationic polymers with specific chemical properties will cause leakage on the wall of the anti-expansion device, causing leakage of the cationic polymer and causing safety accidents.
Second, the storage environment is crucial. It should be placed in a cool, dry and well-ventilated place, avoiding direct sunlight and high temperature environments. Due to high temperature or changes in the properties of cationic polymers, direct sunlight may also cause their chemical reactions and reduce efficiency. For example, if an anti-expansion device containing cationic polymers is exposed to the open air in summer, the temperature may rise or cause changes in the molecular structure of the polymer, which will affect its use effect.
Third, the transportation process must be smooth to prevent violent vibration and collision. Violent vibration collides or damages the anti-expansion device, resulting in leakage of cationic polymers. If the road conditions during transportation are not good and the vehicle is bumpy violently, the internal structure of the anti-expansion device may be damaged and the seal will fail.
Fourth, strictly control the amount of water injected. Too much or too little injection is unfavorable. Too much injection, or exceeding the upper limit of the anti-expansion device, causing it to break; too little injection, the expected anti-expansion effect cannot be achieved. The water injection ratio needs to be accurately determined according to the specifications of the anti-expansion device and the characteristics of the cationic polymer.
Fifth, regularly check the status of the anti-expansion device. Check for signs of damage, leakage, and deterioration of the cationic polymer. Find problems and deal with them in time to avoid serious consequences. For example, during regular inspections, if minor cracks are found on the surface of the anti-expansion device, replace them in time to prevent leakage accidents.
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