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1. Masonry mortar plastering mortar High water retention can fully hydrate cement. Significantly increase the bond strength. At the same time, the tensile and shear strength can be appropriately improved. Greatly improve the construction effect and work efficiency. 2. Water resistant putty The main function of cellulose ether in putty is to retain water, bond and lubricate, so as to avoid cracks or powdering caused by too fast water loss. At the same time, it increases the adhesion of putty, reduces the sagging phenomenon in construction, and makes the construction more smooth and labor-saving. 3. Interface agent It is mainly used as a thickener, which can improve the tensile strength and shear strength, improve the surface coating, and enhance the adhesion and bonding strength. 4. Exterior wall external insulation mortar Cellulose ether plays a key role in bonding and increasing the strength in this material, making the mortar easier to coat, improving the work efficiency, and at the same time, it has the ability to resist sagging. The high water retention performance can prolong the working time of the mortar, improve the anti shrinkage and anti cracking properties, improve the surface quality, and improve the bonding strength. 5. Tile adhesive The high water retention can significantly improve the bonding strength of ceramic tiles and substrates without pre soaking or wetting them. The slurry can have long construction cycle, fine and uniform, convenient construction, and good skid resistance. 6. Joint sealant The addition of cellulose ether makes it have good edge adhesion, low shrinkage and high wear resistance, which protects the base material from mechanical damage and avoids the negative impact of water infiltration on the whole building. 7. Self leveling material The stable viscosity of cellulose ether ensures good fluidity and self leveling ability. Controlling the water retention rate enables it to solidify rapidly and reduce cracking and shrinkage.

pce powder is a new generation of high-performance superplasticizer. Compared with naphthalene superplasticizer, it has high water reduction rate, good Slump Resistance and low shrinkage. The only disadvantage is that the cost is high. At present, large-scale projects should be mainly concentrated in projects with high concrete quality requirements, including Shanghai maglev track beam, Donghai Bridge, some projects of the Three Gorges, Sutong Bridge, etc. In China, polycarboxylic acid water reducing agent has just started, and there is a considerable gap compared with advanced countries. This paper combines polycarboxylic acid with a variety of early strength and retarding components, hoping to solve the slump retention and reinforcement performance of polycarboxylic acid through experiments.

July 11-13 the 6th International Forum on new battery anode and cathode materials technology was held in Suzhou Shenyang East Chemical Science-Tech Co., Ltd. was recommended as an excellent enterprise to attend the meeting. Shenyang East Chemical Science-Tech Co., Ltd. has been deeply involved in the field of lithium batteries for 10 years. Its subsidiary factory Shenyang Huijing Nanotechnology Co., Ltd. has been focusing on the production and sales of single-wall carbon nanotube conductive pastes since 2018. At present, the main customers are in the lithium battery industry, and the production capacity is constantly increasing. It is expected to plan production capacity by 2023. up to 20,000 tons. We have been committed to providing lithium battery companies with high-quality raw materials and technical support, as well as differentiated products and solutions. You are welcome to communicate with us at any time!

HPMC shipping time! Application of HPMC in construction industry: As a water-retaining agent and retarder for cement mortar, it makes the mortar pumpable. In plastering slurry, gypsum, putty powder or other building materials, it is used as a binder to improve spreadability and prolong operation time. It is used as a paste for ceramic tile, marble, plastic decoration, as a paste enhancer, and it can also reduce the amount of cement. The water retention of hydroxypropyl methylcellulose HPMC can prevent the slurry from cracking due to drying too fast after application, and enhance the strength after hardening.

In the midsummer of July, the temperature is scorching hot. Facing the rising temperature, Easter's friends are still doing their best and sticking to their posts. In order for everyone to have a cool and comfortable summer, East arranged summer high temperature benefits for everyone in time, purchased an ice machine, and supplied unlimited ice cubes every day, eliminating a trace of heat in the hot summer.

Compared with traditional liquid polycarboxylate admixture products, powder polycarboxylate superplasticizer has the following characteristics: 1. PCE Powder can be widely used in various product systems such as dry mortar and concrete; 2. PCE Powder facilitate long-distance transportation and reduce storage space; 3. High water reduction rate: the water reduction rate can reach 30%; 4. Low dosage: 0.1%~0.3%; 5. High early strength: the 3D strength of concrete can be increased by 100%-400%; 6. Effectiveness at low water-cement ratio: Under the condition of water-cement ratio of 0.15, ultra-high strength concrete with high compressive strength can be prepared; 7. Green environmental protection products: PCE Powder does not pollute the natural environment during the production process and meets the standards.

From the start in 2012 to the present, unknowingly, East has ushered in its 10th year. In the past development process, there are many partners who have accompanied East to experience every setback, victory, glory and storm... We always believe that similar people will always meet, which is an eternal truth: we will always smell some unique flavors from some people, and then intuitively guide us to come together with these similar people, and those who The changes and constants in the years have finally precipitated the "we" of the moment. In order to thank the employees for their hard work and efforts, and to strengthen the company's corporate culture of hard work, seriousness, unity and struggle, the company will hold an anniversary event for employees on the afternoon of June 23, 2022.

HPMC is a non-ionic cellulose ether polymer, which has different chemical properties according to the degree of substitution of the substituent groups and the degree of modification. It is a non-ionic, odorless, odorless white fiber Pure ether powder. HPMC can be used in building materials, industrial coatings, ceramics, textiles, agricultural daily chemicals and other fields. HEC is a non-ionic cellulose ether made from natural polymer material cellulose through a series of etherifications. , form a transparent viscous solution, insoluble in general organic solvents, and the dissolution is not affected by the pH value. It has the properties of thickening, binding, dispersing, emulsifying, film-forming, suspending, adsorbing, surface-active, retaining moisture and resisting salts. HEC can be widely used in suspension polystyrene, expandable polystyrene, emulsion and acrylate new latex coatings, water-in-water colorful coatings, daily chemicals, oilfield drilling, building materials, textiles, printing and dyeing and other fields.

In order to effectively train and improve employees and enable the team to achieve dynamic growth, the enterprise talent pool has a steady stream of resources. The company launched a 22-day backbone training camp on May 21, 2022. East's friends have left wonderful memories in the classroom. This study is just the beginning. In the future, we need to continue to work hard to implement the skills we have learned, improve our management level, and accelerate the growth of the company. At the same time, the enthusiasm inspired by the training activities is put into the work. The end of the camp is imminent, and the enthusiasm of the trainees is still undiminished. On June 11, 2022, the camp will end on foot. Let us draw a successful conclusion to this learning and training. The process of walking on foot is a test of everyone's physical strength and perseverance; through teamwork, everyone can better understand the concept of collective, let everyone feel the joy and joy of the joint efforts of partners, and cultivate unity and mutual assistance. The spirit and tenacity of perseverance further enhance team cohesion. The performance of Easter's partners perfectly interprets the corporate values of "growth achievement, teamwork". At 8:20 a.m. on June 11, 2022 (Saturday), all gathered at the northeast side of Northeast International Hospital, Hunnan District, Shenyang City. Under the leadership of the company, the camping hiking activity officially kicked off. Through this backbone training camp, each employee has a deeper understanding of teamwork. There is no perfect individual, only a perfect team. A drop of water will never dry up only when it is put into the sea. Only when a person integrates himself with the collective can he have full power. Through this event, I hope everyone can live a healthy life and work happily. Life is like a hiking trip. We must believe in the power of every step and measure the world step by step.

June 8, 2022 our company exported a large number of TPEG to Taiwan, China Here are the shipping photos. TPEG is an important raw material for polycarboxylate superplasticizer which is formed by the macro-monomer copolymerize with acrylic acid. The hydrophilic group in the synthesized copolymer(PCE) can improve the hydrophily the dispersibility of the copolymer in water. The synthesized copolymer(PCE) has good dispersibility, high water reducing rate, good slump retention, good enhancing effect and duribility, also is environmentally friendly and widely used in premix and cast-in concrete.

As the size of the tiles increases, hollowing is more and more likely to occur after laying, and even the accident of the tiles falling off occurs. This problem has a lot to do with the flexibility of the bonding material. The ceramic tile has high density and low deformation, and the base layer will have a large deformation due to various external and own factors. The tile adhesive as an adhesive layer must be able to absorb the stresses caused by deformation. If the tile adhesive does not contain glue powder, or the content of glue powder is low, it will be difficult to absorb the stress caused by deformation, so that the entire paving system will gradually fall off at the weak point, forming an empty drum. Redispersible Polymer Powder can provide tile adhesive with the ability to adapt to stress and deformation, that is, improve the flexibility of tile adhesive. In this system, the rigidity of the tile adhesive is mainly provided by inorganic materials such as cement and sand, and the flexibility is provided by the glue powder. The polymer is interspersed in the pores of the cement stone to form a polymer network, which becomes the elastic link between the rigid components, making it flexible. When deformation occurs, the polymer network absorbs the stress, ensuring that the rigid components are not cracked or damaged. Therefore, improving the flexibility of the bonding material is very important to reduce hollowing. Appropriate amount of glue powder can improve the state of the network structure formed by the polymer inside the tile glue.

ChemSpec Europe Shenyang East Chemical Science-Tech Co., Ltd. participated in the European Fine Chemicals Exhibition May 31-June 1, 2022 Venue: Frankfurt, Germany Looking forward to your arrival

On February 20, our company exported a large number of PCE Powder to Belgium. This is the shipping photo. PCE Powder, the main product of EASTCHEM,Polycarboxylic acid series high-performance water-reducing agent is a new generation of high-performance water-reducing agent that has appeared at home and abroad in recent years. Compared with traditional superplasticizers such as naphthalene-based superplasticizers, polycarboxylic acid-based superplasticizers have many unique technical performance advantages: (1) low dosage and high water-reducing rate; (2) for concrete mixtures ; (3) Good compatibility with cement; (4) Small shrinkage rate of the prepared concrete, which is beneficial to improve the volume stability and durability of concrete; (5) Environmental protection and pollution-free during production and use , belongs to the green admixture. We have 10 years of industry experience to provide you with materials, chemicals and services. Welcome to consult.

At present, the global acrylic acid production capacity is close to 9 million tons, of which about 60% comes from Northeast Asia, 38% from China, 15% from North America and 16% from Europe. From the perspective of major global production enterprises, BASF has the largest acrylic acid production capacity, reaching 1.5 million tons / year, followed by akoma's 1.08 million tons / year and Japan's catalyst 880000 tons / year. In 2022, with the continuous production capacity of satellite chemical and Huayi, the total production capacity of acrylic acid of satellite chemical will reach 840000 T / A, surpassing LG Chemical (700000 T / a) to become the fourth largest acrylic acid enterprise in the world, followed by Huayi (520000 T / a) and Formosa Plastics (480000 T / a). The industry concentration of the world's top ten acrylic acid production enterprises exceeds 84%. In 2021, the global output of acrylic acid reached 6 million tons, 52% of which came from Northeast Asia, and China's output accounted for 35%, 2.1 million tons. However, acrylic acid is basically in a balance between supply and demand in all regions of the world, with a slight export from China and a slight import from Indonesia. This is mainly because acrylic acid is usually integrated to produce acrylate or sap, and the trade volume is not large. From the perspective of global demand, it is expected that the global acrylic acid consumption will maintain an average annual growth rate of 3.5-4% from 2020 to 2025, and the acrylic acid consumption growth rate of Asian developing countries represented by China is as high as 6%. Due to the improvement of disposable income and the demand for high-quality products, the strong demand for SAP and acrylic acid is driven. From the perspective of global supply, the strong demand in the next few years has stimulated Chinese enterprises to increase the investment of acrylic acid integrated production capacity, but there is basically no new production capacity in other parts of the world.

1. Cement mortar: improve the dispersion of cement sand, greatly improve the plasticity and water retention of mortar, have an effect on preventing cracks and enhance the strength of cement. 2. Ceramic tile cement: improve the plasticity and water retention of pressed ceramic tile mortar, improve the glue relay of ceramic tile and prevent pulverization. 3. Coating of asbestos and other refractory materials: as a suspension safety agent and liquidity improver, it also improves the adhesive force to the substrate. 4. Gypsum concrete slurry: improve water retention and processability, and improve the adhesion to the substrate. 5. Joint cement: added to the joint cement for gypsum board to improve fluidity and water retention. 6. Latex putty: improve the fluidity and water retention of resin latex based putty. 7. Plaster: as a paste instead of natural substances, it can improve the water retention and improve the glue relay with the substrate. 8. Coating: as a plasticizer of latex coating, it plays a role in improving the operability and fluidity of coating and putty powder. 9. Spraying coating: it has a good effect on preventing the sinking of cement or latex spraying filler and improving the fluidity and spray pattern. 10. Secondary products of cement and gypsum: used as the press out molding binder of hydraulic substances such as cement asbestos system to improve the fluidity and obtain uniform molded products. 11. Fiber wall: due to the anti enzyme and anti-bacterial effect, it is effective as the adhesive of sand wall. 12. Others: it can be used as bubble retention agent (PC version) for thin mortar, sand mortar and mud hydraulic operator.

Effect of water consumption on the performance of polycarboxylic acid concrete mixture The influence of water consumption is very obvious. In the actual application of concrete engineering, sometimes if the water consumption increases by 1 ~ 3kg / m3, the concrete will have serious bleeding phenomenon, which will cause pitting, sanding, holes and other defects on its surface, and the uniformity and construction quality of concrete pouring cannot be guaranteed, resulting in the reduction of the strength and durability of concrete structure. Polycarboxylic acid concrete is prone to delamination and segregation In most cases, adding polycarboxylic acid water reducer to concrete will greatly reduce the viscosity of the slurry. At the same time, even if the dosage and water consumption of polycarboxylate superplasticizer are the best and there will be no bleeding, the concrete is prone to delamination and segregation, which is mainly reflected in the separation of coarse aggregate from mortar and net slurry and a large amount of subsidence. This kind of concrete mixture has no vibration when pouring concrete works, and the phenomenon of delamination and segregation is also very obvious. Poor compatibility Naphthalene series, aliphatic series, lignosulfonate, aminosulfonate and other traditional water reducing agents can be mixed in any proportion, so as to meet the preparation requirements of various concrete. These traditional water reducing agents can not only dissolve each other in water, but also achieve excellent superposition effect when used in combination. Polycarboxylic acid water reducing agent has great limitations and can only be used in combination with traditional water reducing agent lignosulfonate, which has poor compatibility with other traditional water reducing agents. If it is combined with other types of traditional water reducing agents, it will not only be difficult to achieve the superposition effect, but also make the fluidity of concrete very poor. With the significant increase of water consumption, the serious loss of slump and the dry and difficult unloading of concrete, the strength and durability of concrete will be seriously affected.

What is the difference between HPMC and MC? Therefore, Xiaobian summarizes some knowledge here and answers the differences between the two. HPMC is hydroxypropyl methylcellulose. This is a kind of non-ionic cellulose mixed ether, which is made of refined cotton after alkalization. It is prepared by a series of reactions using propylene oxide and methyl chloride as etherifying agent. The degree of substitution is usually 1.2 to 2.0. Its properties vary according to the ratio of methoxy content to hydroxypropyl content. MC is methylcellulose. After refined cotton alkali treatment, with methane chloride as etherifying agent, cellulose ether is prepared after a series of reactions. The general degree of substitution is 1.62.0, and the solubility changes with the degree of substitution. It belongs to non-ionic cellulose ether. Performance comparison between the two: (1) Hydroxypropyl methylcellulose is easily soluble in cold water; Insoluble in hot water. However, its gelling temperature in hot water is significantly higher than that of methylcellulose, and its solubility in cold water is also greatly improved compared with methylcellulose. Methylcellulose is also soluble in cold water; It is insoluble in hot water and its aqueous solution is very stable in the range of pH = 312. (2) The viscosity of hydroxypropyl methylcellulose is related to its molecular weight. The higher the molecular weight, the higher the viscosity. Temperature will also affect its viscosity, as the temperature increases. The viscosity will decrease, but its high viscosity has a lower temperature effect than methylcellulose. The solution is stable when stored at room temperature. Methylcellulose has an important impact on the workability and adhesion of mortar. Here, "adhesion" refers to the adhesion felt between the worker's application tools and the wall substrate. That is, the shear resistance and adhesion of mortar are large, and the shear resistance of mortar is large. Workers also need a lot of force in the process of use. The constructability of mortar is poor. (3) The water retention rate of hydroxypropyl methylcellulose depends on its addition amount, viscosity and so on. At the same addition, the water retention rate was higher than that of methylcellulose. The water retention of methylcellulose depends on its addition amount, viscosity, particle fineness and dissolution rate, and the dissolution rate mainly depends on the surface modification degree and particle fineness of cellulose particles. (4) Hydroxypropyl methylcellulose has better enzyme resistance than methylcellulose, and the possibility of enzymatic degradation in solution is lower than methylcellulose. The above content is about the distinction and performance comparison between hydroxypropyl methylcellulose and methylcellulose. I hope it will be helpful to you!

Say goodbye to the unforgettable 2021 and welcome the brand new 2022. In order to thank all employees for their hard work over the past year, Shenyang East Chemical Science-Tech Co., Ltd.held an annual ceremony with the theme of "Ten Years of Gravel Grinding, Celebration and New Leap" at the Fengxianggu Hot Spring Resort Hotel in Benxi on January 20, 2022. The leaders and colleagues of East Chemical gathered together and made progress together; looking back on the road of struggle in 2021 and looking forward to the new journey in the future! Check in Every gathering will be precious in life. Memories of flowers are similar every year, and people are different every year. A splendid annual feast will be held at the end of the year and the beginning of the year to share the joy and achievements of the past year. We wish the new year a brilliant future. leader's speech A year's plan is in the spring, and a day's plan is in the morning. Say goodbye to the past 2021, we are still full of passion. Say hello to the coming 2022, we are always ready. 2021 is a special year, a perfect year. I believe that for us in East, 2022 will also be a year of explosion and a year full of opportunities. Annual Awards Ceremony The annual meeting was the first to present awards to outstanding departments and outstanding employees. They have the courage to take responsibility and be positive, face difficulties without flinching, dare to take action, and create miracles for the company with excellent performance. Highlights of the show For this annual meeting, the partners of each department did their best and did their best to bring you wonderful programs. Greatly mobilized the enthusiasm of the staff and pushed the atmosphere of the scene to another climax. New Year greeting The bright fireworks are the brilliant colors of the New Year; the loud singing is the moving melody of the New Year! We are about to bid farewell to the successful 2021 and head towards the hopeful 2022. We will enter the new year with a positive and full spirit. We will advance towards higher goals. We firmly believe that Easter's tomorrow will be better!

HPMC is hydroxypropyl methylcellulose. This is a non-ionic cellulose mixed ether, which is made of alkalized refined cotton. It is prepared by a series of reactions using propylene oxide and methyl chloride as etherifying agent. The degree of substitution is usually 1.2 to 2.0. Its properties vary according to the ratio of methoxy content to hydroxypropyl content. MC is methylcellulose. Cellulose ether is prepared after refined cotton alkali treatment with methane chloride as etherifying agent and a series of reactions. The general degree of substitution is 1.62.0. The solubility changes with the degree of substitution. It belongs to non-ionic cellulose ether. Performance comparison between the two: (1) Hydroxypropyl methylcellulose is easily soluble in cold water; Insoluble in hot water. However, its gelling temperature in hot water is significantly higher than that of methylcellulose, and its solubility in cold water is also greatly improved compared with methylcellulose. Methylcellulose is also soluble in cold water; It is insoluble in hot water and its aqueous solution is very stable in the range of pH = 312. (2) The viscosity of hydroxypropyl methylcellulose is related to its molecular weight. The higher the molecular weight, the higher the viscosity. Temperature also affects its viscosity, as the temperature increases. The viscosity will decrease, but its high viscosity has a lower temperature effect than methylcellulose. The solution is stable when stored at room temperature. Methylcellulose has an important impact on the workability and adhesion of mortar. The "adhesion" here refers to the adhesion felt between the worker's application tools and the wall substrate. That is, the shear resistance and adhesion of mortar are large, and the shear resistance of mortar is large. The force required by workers in the process of use is also large. The constructability of mortar is poor. (3) The water retention rate of hydroxypropyl methylcellulose depends on its addition amount, viscosity and so on. At the same addition, the water retention rate was higher than that of methylcellulose. The water retention of methylcellulose depends on its addition amount, viscosity, particle fineness and dissolution rate, and the dissolution rate mainly depends on the surface modification degree and particle fineness of cellulose particles. (4) Hydroxypropyl methylcellulose has better enzyme resistance than methylcellulose, and the possibility of enzymatic degradation in solution is lower than methylcellulose. The above content is about the distinction and performance comparison between hydroxypropyl methylcellulose and methylcellulose. I hope it will be helpful to you!

How much can the water reduction rate of polycarboxylic acid high-performance water reducer reach? First of all, we should know that the water reduction rate of polycarboxylic acid water reducer refers to the percentage of water consumption that can be reduced under the specified dosage, that is, the water reduction rate. For example, it was originally necessary to use 100g of water to make the mortar mix. After adding the water reducing agent with the specified output, the mortar is stirred out with 82 grams of water. The conclusion is that the water reducing rate of the polycarboxylic acid water reducing agent under the specified output is 18%. This is mainly related to the solid content or parameters. The water reducing rate of the general high-efficiency water reducing agent can reach more than 40%, which has not been seen before. It is also not applicable in actual production. One is the cost problem and the other is the construction problem. The of polycarboxylic acid is generally less than 45%, and naphthalene is generally only more than a dozen, less than 30%. Generally, polycarboxylic acid water reducer manufacturers will provide the water reduction rate of polycarboxylic acid water reducer. However, the water reducing effect of polycarboxylic acid water reducer will be reduced if it is placed for a long time. Moreover, the water reduction rate of polycarboxylic acid water reducer is only the result obtained by the manufacturer under specific experiments, which has a great relationship with other materials in the concrete mixing process, so it can not be calculated by relying on a specific value.