China Wuhan Desheng Biochemical Technology Co., Ltd Company News

3-Morpholinepropanesulfonic acid is abbreviated as MOPS, CAS No. is 1132-61-2.It is a zwitterionic buffer commonly used in biochemistry and molecular biology, and its structure is similar to 2-(N-morpholine)ethanesulfonic acid (MES), also one of the "Good" buffers classified by Dr. Norman Good and colleagues in 1966. It has a wide range of applications, such as for mammalian cell culture (recommended concentration should be ≤20 mM), RNA denaturing agarose gel electrophoresis experiments (20 mM concentration is better for formaldehyde gels), discontinuous Polyacrylamide gel electrophoresis experiments, etc.   PH stability of 3-morpholinopropanesulfonic acid (MOPS) The PH stability of 3-morpholinepropanesulfonic acid and its effect on vascular tension in vitro were studied experimentally. The results showed that the PH changes of MOPS buffer and K+-MOPS solution within 14 days were basically constant at (7.32±0.04)～(7.51±0.04) 0.04). The aeration rate had little effect on the pH of MOPS solution, and the range of change was (7.24±0.04)～(7.39±0.00).While the Krebs solution was sensitive to the aeration speed, and the pH range was (6.81±0.81±0.00) between 15 and 60 bubbles/min. 0.07)～(8.33±0.02), the fluctuation range is large.   Changes in the volume of MOPS solution and Krebs solution under the same ventilation rate have little effect on their pH. The isolated rat mesenteric artery, cerebral basilar artery and coronary artery can produce good contraction in MOPS solution. Therefore the MOPS solution has the advantages of stable pH, long standing time, easy ventilation, and low application cost, and can be used in mammals experiments on isolated tissues and organs such as blood vessels.   Precautions for the use of 3-morpholinopropanesulfonic acid (MOPS) 1. MOPS can interfere with Folin protein analysis, and autoclaving of MOPS solution containing glucose will cause its partial inactivation. 2. MOPS powder can be stored at room temperature for several years. However, upon standing, the bulk powder may clump together and form hard lumps without affecting its chemical properties. 3. Storage method: MOPS powder can be stored stably at room temperature for several years. Prolonged storage may clump without affecting its use and chemical properties. 4. MOPS buffer can be stored at 2~8°C for at least 6 months, and sterilized by filtration with a 0.2 μm filter. Autoclaving is not recommended. To prepare a nuclease-free MOPS solution, autoclave the water before adding the powder to dissolve.   In the current market, Desheng is one of the most professional MOPS manufacturers in China, with a professional team for R&D and production. Desheng currently develops dozens of biological buffers, which have been traded in many regions around the world and are well received by the industry. If you are interested in MOPS or other buffer products, you can contact customer service for details.

Serum is one of the main samples for clinical biochemical, immune and other tests. At present, the method of obtaining serum samples in medical institutions is mainly by collecting venous blood and centrifuging it after the blood is completely coagulated. Under normal circumstances, it takes more than 60 minutes for blood samples to be completely coagulated after isolation, which is difficult to meet the needs of rapid laboratory testing. The containers used for collecting venous blood samples in medical institutions mainly include blood collection tubes with coagulant or blood samples collected with disposable syringes and then injected into non-vacuum containers. The materials of the containers are glass or plastic. The coagulation process needs to include at least three basic biochemical reactions: ① Formation of prothrombin activator; ②Prothrombin activator converts prothrombin into active thrombin with the participation of calcium ions; ③ Soluble fibrinogen is converted into insoluble fibrin under the action of thrombin. Macroscopic clot formation is both a physical phenomenon of fibrin formation and the final point of a series of enzymatic biochemical reactions. There are many clotting factors involved in the whole process. Under physiological conditions, coagulation factors are generally in an inactive state. When these coagulation factors are activated, a series of enzymatic reactions that are still recognized as the "waterfall theory of coagulation mechanism" will occur and lead to blood coagulation. Tissue factor, namely tissue thromboplastin or coagulation factor III, is the only coagulation factor that does not exist in animal blood. It is a lipoprotein, and its main component is phospholipid. Tissue factor lipoprotein is widely present in animal tissues such as brain, lung and placenta. It is released after tissue damage, acts on the extrinsic coagulation system, and promotes coagulation with the endogenous coagulation system products under the catalysis of thrombin. Coagulation pathway to achieve coagulation effect. The main function of blood coagulants is to accelerate blood coagulation, that is, to shorten the blood coagulation time in vitro without affecting the necessary components of blood, and to promote serum separation. The performance evaluation of blood coagulants should be considered from the following aspects: 1) Coagulation time: the time required for blood to fully coagulate after contacting with the coagulant. 2) Procoagulation efficiency: the relative amount of coagulant added to make the blood achieve the best coagulation effect. 3) Coagulation effect: the amount of serum exudation after blood coagulation. 4) Separation effect: whether the blood after coagulation can achieve complete and clear separation of serum after centrifugation, and whether hemolysis occurs. 5) Effects on essential components of blood: The use of coagulants cannot have a harmful effect on the clinical test results of blood and the performance and quality of blood products.   Hubei New Desheng is a professional manufacturer of coagulant with good performance.We made blood collection tube additives for more than 17 years. Welcome inquiry if you need it.

What are the differences among EDTA K2,EDTA K3 and EDTA Na2? I believe many people don't know, so let's talk about the differences in the uses of these three products today!   Ethylenediaminetetraacetic acid dipotassium (EDTA K2) ethylenediaminetetraacetic acid is an amino polyacid.It is a general-purpose strong complexing agent for forming complexes with most metal ions.EDTA K2 is an anticoagulant commonly used in blood analyzers. It has the characteristics of good anticoagulation effect and less influence on the morphology of blood cells. Blood analysis is a routine test item in clinical medicine. The vast majority of patients undergo this test. From the beginning of manual detection to fully automatic detection.   EDTA K3 is an amino polyacid.Although the integration of EDTA has long been used for extraction, cation exchange, separation of rare elements, volumetric analysis of calcium, magnesium, and barium, softening of hard water, and use as masking agent, metal cleaning agent, antidote for heavy metal poisoning, bactericide, etc. However, in-depth research on its structure and integration mechanism was done after 1958.   Some studies have shown that unexplained low platelet counts are found in blood analysis with EDTA-K3 anticoagulation, and the patient should be manually checked for blood slices and PLT manual counts, or diluted with unanticoagulated peripheral blood. Check the PLT count directly with the instrument for blood cell analysis to correctly understand the true level of the patient's PLT. Especially cancer patients, autoimmune diseases, pulmonary heart disease, pregnant women, advanced liver disease and other patients.   EDTA Na2 is often used in coordination burettes to measure the composition of metal ions. EDTA Na2 has main uses in industrial production such as dyes, food, and pharmaceuticals. EDTA Na2 is milky white crystalline particles or powder, odorless and odorless. It can dissolved in water, not easily in alcohol. It is a key antioxidant that chelates metal ions in aqueous solutions. And can avoid discoloration, mildew, turbidity and air oxidation damage of vitamin C caused by metal materials, and also improve the antioxidant of vegetable oils,a small amount of metal materials such as iron and copper in vegetable oils can promote the air oxidation of vegetable oils.   According to the application quality standards of food preservatives in my country, EDTA Na2 can be used in canned aquatic products, canned fruits with red bean syrup and chestnut, etc. The maximum demand is 0.25mg/kg. It can maintain the color, aroma and taste of canned fruit food. For canned aquatic products such as crab and shrimp, the addition of EDTA Na2 can avoid the dissolution of Struvite, a laminated glass-like crystal, to ensure the quality of processed products. . It is also used as stabilizer and adhesive for sauce products and canned fruits, and the maximum demand is 0.25g/kg.   I believe the above make it clear for the use of EDTA K2,EDTA K3 and EDTA Na2. But all ours are produced for blood collection tube additives, pls feel free to contact if you need them.

There are generally two ways to detect the virus of Covid-19, nucleic acid detection and antibody detection. But we generally make nucleic acid testing, and naturally ignore antibody testing. This is because antibody detection is generally used as a supplementary detection indicator for suspected cases with negative nucleic acid detection for the Covid-19 or in conjunction with nucleic acid detection in the diagnosis of suspected cases. It cannot be used as a basis for diagnosis and exclusion, and is more suitable for retrospective examination. So what is the difference between the two tests? Which test is the VTM more suitable for?   VTM (Virus Transportation Media) It is a liquid used for virus sample testing. There are mainly two types of inactivated and non-inactivated. The inactivated type can quickly inactivate the virus and release the virus’ nucleic acid for rapid nucleic acid detection.The non-inactivated type can protect the activity of virus’ RNA and protein at the same time, which can be used for virus nucleic acid detection and antibody detection.   The differences between nucleic acid detection and antibody detection 1.Different samples Nucleic acid detection requires respiratory samples, including pharynx, nasopharyngeal secretions, sputum, bronchi, lavage fluid, lung biopsy, etc. The collection process is very complicated. Antibody detection is a blood test, which can be collected by peripheral blood or venous blood collection. The sample collection method is more convenient and safe, and the sample can be stored for 72 hours. 2.Different detection methods Nucleic acid testing is a direct detection of viruses. It takes the specific DNA sequence of the virus as the detection target.Through PCR amplification, the target DNA sequence we chosen increases exponentially. Each amplified DNA sequence can be combined with a pre-added fluorescent marker. The probes bind, producing a fluorescent signal. The more target DNA amplified, the stronger the accumulated fluorescent signal. In samples without virus, no increase in fluorescence signal was detected because there was no amplification of the target DNA. Moreover, the nucleic acid sample has harsh storage conditions, RNA is easily lysed, and can only be stored for 24 hours at 4°C. Antibody testing is an indirect test. It is not directed against the virus itself, but a specific antibody produced by the immune response of the human body after infection with the virus . The human body gradually produces antibodies about a week after being infected with the virus and then rises rapidly. The human body generally produces antibodies called IgM first. A positive IgM antibody indicates a recent infection, and a positive IgG antibody indicates a long period of infection or previous infection. 3.Different detection conditions Nucleic acid testing requires specialized instruments and standard molecular testing laboratories. PCR certification personnel required to operate. The steps are cumbersome and the whole process takes 5 to 8 hours. The risk of contamination during the process is high. Antibody detection breaks through the limitations of existing nucleic acid detection methods on personnel and places. It can be detected in large quantities quickly, and can be completed in primary laboratories with low risk of contamination.   It can be seen from above there are advantages and disadvantages for no matter what kind of Covid-19 virus detection method is used. Antibody detection is a supplement to the false negative of nucleic acid detection. The combination of the two can effectively improve the diagnostic efficiency of the Covid-19, and has extraordinary value for epidemic prevention and control.   We are factory of VTM and IVD reagent, welcome to inquiry if you need it.

Dipotassium EDTA is an anticoagulant commonly used in blood analyzers. It has the characteristics of good anticoagulation effect and less influence on the morphology of blood cells. Blood analysis is a routine test item in clinical medicine. The vast majority of patients undergo this test. From the beginning of manual detection to fully automatic detection. All demands are increasing.   Ethylenediaminetetraacetic acid dipotassium (EDTA-2K) ethylenediaminetetraacetic acid (abbreviated as Dipotassium EDTA) is an amino polyacid.It is a general-purpose strong complexing agent for forming complexes with most metal ions. The past research on Dipotassium EDTA complexes and chelation has focused on three aspects. 1. What attracts more research forces is the most stable metal complex of Dipotassium EDTA,the chelate of transition elements and rare elements. 2. A batch of complexes with moderate complexing strength, such as the accumulation of alkaline metals. Since it is difficult for general reagents to achieve the complexation of alkali metals, the complex of Dipotassium EDTA alkaline metals has attracted people's attention in particular; 3.Through the sequence of Dipotassium EDTA itself and co-alkali metal salts, the research on the affinity of Dipotassium EDTA acid radical to proton is focused.   Dipotassium EDTA is an amino polycarboxylic acid and calcium chelator.It has a great affinity for calcium ion in blood, which can effectively chelate calcium ion or remove calcium reaction sites in blood samples.The drop of calcium ion will block and stop the endogenous or extrinsic coagulation process, thereby preventing the coagulation of blood samples.Each 0.8mg can anticoagulate 1ml of blood. Except that it cannot be used for the determination of calcium and sodium containing substances in plasma, it is suitable for various anticoagulation. Dipotassium EDTA can also complex some ions in plasma to make certain of proteins or nucleic acid substances more stable.But the interference of the formation of chromium compounds on samples and experiments should be considered.   Dipotassium EDTA is suitable for general hematological tests, but not for platelet count. Because it affects platelet aggregation and blood cell phagocytosis. It is not suitable for coagulation imaging and platelet function tests, nor for calcium, potassium, NaFe, alkaline phosphatase, creatine Kinase and leucine aminopeptidase assays and PCR assays.   Dipotassium ethylenediaminetetraacetate (EDTA-K) is additives of vacuum blood collection tubes,anticoagulation of 2ml blood requires 4mg of Desheng ethylenediaminetetraacetic acid dipotassium (EDTA-K). Because the concentration is low, in order not to dilute the blood, 20ul of an aqueous solution containing 200g/L of dipotassium ethylenediaminetetraacetate (EDTA-K) is generally used in each blood collection tube. When the water is evaporated on the tube wall,the Dipotassium EDTA in the tube to crystallize quickly. The blood collection tubes must be turned upside down for at least 8 times, so that the crystallized dipotassium ethylenediaminetetraacetate (EDTA-K) can be fully dissolved and mixed in the blood.   Desheng is a professional manufacturer of Dipotassium EDTA. Our blood collection tube additives have been recognized by many tubes manufacturers. If you have any requirements, please contact us!

Hubei New Desheng Material Technology Co., Ltd. was established in 2017.It is a production enterprise specializing in R&D, production and sales of material for IVD reagent. At present, the company's products include  blood collection tube additives, biological buffers, chromogenic substrates, chemiluminescence reagents and enzyme preparations. In terms of blood collection tube additives, it has formed independent intellectual property rights and professional production and R&D capabilities.   At present, our company mainly has a series of blood collection tube additives, including sodium heparin, lithium heparin, trisodium citrate, dipotassium EDTA, tripotassium EDTA, potassium oxalate, blood coagulation powder, blood coagulant, serum separating gel, silicifying agent,etc. The raw materials of diagnostic reagents include biological buffers and chromogen substrates. At present, chromogen substrates,also known as new Trinder's reagents, include TOOS, TOPS, ADOS, ADPS, ALPS, DAOS, HDAOS, MADB, MAOS, TODB, etc.They are white,which are different from light blue or brown products on the market.White crystal biological Buffers include TRIS, HEPES,BICINE,CAPS, MOPS, TAPS, EPPS, etc. Which max absorbance is 0.05.Self-developed chemiluminescence substrates include luminol, isoluminol, acridine ester and enzyme substrate PNPG,all with high purity.   The company focuses on the blood test reagent industry, and is determined to become the world's leading brand and contribute to the human health. Since its establishment, the company has always adhered to the core business philosophy of "morality-based, honesty-first", and regards providing value to customers as our responsibility, which has been well received by customers.   The product quality and technology of New Desheng have been widely recognized and used by customers in the Chinese domestic market. Over the years, many well-known blood collection tube manufacturers in China have been choosing our products.Desheng Technology will continue to devote to develop the advanced material for IVD reagents to meet the needs of the development of global medical testing technology and strive for the human health.Welcome your inquiry on related products.

The Chinese name of CAPS is 3-(cyclohexylamine)-1-propanesulfonic acid. It is a white crystalline powder with a molecular formula of C9H19NO3S, a molecular weight of 243.28, and a CAS number of 1135-40-6. It is a commonly used biological buffer.   Different usage have different requirements for the purity of caps. When used as a biological buffer,generally high purity as analytical grade (AR grade) of CAPS are chosen.When used in industrial production, the purity requirements are not so high.So the usage should be clear when select CAPS powder.The biological buffers CAPS produced by Desheng are of analytical grade.We strictly controlled the production quality,and the purity higher than 99%.   CAPS has a wide range of applications as biological buffers, such as in biochemical diagnostic kits, DNA/RNA extraction kits and PCR diagnostic kits. And CAPS also has many applications in industry, such as new coatings and new materials.   Desheng Biochemical has been developing and producing biological buffers for many years with rich experience.CAPS is one of the core products, which is well received in the field of biochemical diagnostic reagents and the new coating products market. It has been more than ten years since Desheng was established. The company's products are sold all over the world. At present, it has been sold to more than 100 countries around the world with good quality and favorable price.Welcome your inquiry!

The Chinese name of HEPES is 4-hydroxyethylpiperazine ethanesulfonic acid, which is a biological buffer with a wide range of uses. Perhaps when it comes to biological buffers, the first thing that comes to mind is its application in biochemical experiments, which is far from our daily life. In fact, if you carefully observe the commonly used skin care products and cosmetics, you will find that there are 4 - Hydroxyethylpiperazineethanesulfonic acid in these ingredient.   Due to the special buffer range of HEPES, it has an irreplaceable position in the field of industry, cosmetics and biochemical experiments. So how is it produced? The editor summarizes a method for preparing HEPES here, let's take a look.   Preparation steps of HEPES powder: 1.Vinylsulfonic acid or vinylsulfonate and N-hydroxyethylpiperazine addition reaction to prepare 4-hydroxyethylpiperazine ethanesulfonate; 2.4-hydroxyethylpiperazine ethanesulfonic acid salt is converted into the salt of 4-hydroxyethylpiperazine ethanesulfonic acid and corresponding acidifying agent with acidifying agent, obtains acidifying liquor; 3.The acidified liquor is crystallized, and the salt content of the corresponding acidulant is removed to obtain the treated acidified liquor; 4. Add soluble barium salt or calcium salt to the acidified liquor, remove residual sulfate, evaporate and concentrate to obtain HEPES primary purified product; 5. The primary purified product is washed with small molecular alcohol and dried to obtain high-purity HEPES powder.   This method can not only produce high-purity HEPES, but also has low purification cost, simple preparation process, easy operation and no pollution. Desheng Biochemical is a source manufacturer of biological buffers. Since established in 2005, it has rich experience in the research and production of biological buffers. At present, there are more than ten kinds of biological buffers produced. Welcome to inquiry.

Chromogen substrate can actually be divided into general-purpose chromogenic reagents and exclusive chromogenic reagents. According to different classifications, there are many exclusive chromogenic reagents,such as hydrocarbons, organic acids, phenols, steroids, chlorine-containing compounds.,etc.What I want to talk about today is the new Trinder's chromogen substrate .   The new Trinder's chromogen substrate is both a nitrogen-containing compound and a fragrant compound.The reaction is generated by the binding of horseradish peroxidase to achieve the purpose of color reagent. Corresponding to Trinder's chromogen substrate, there is also tetramethylbenzidine chromogenic system. In terms of time, Trinder's chromogenic reagent actually developed later than TMB. Currently, TMB is used more as color reagent in China.   Although Trinder's reagent was developed and used later than TMB, it was not so smooth in the initial period. The stability and sensitivity of chromogen substrates are two key points,but the new Trinder's reagent was not as good as TMB in the early stage. Today, the data of Trinders reagent is more dazzling, but the cost is still higher than TMB, so this is also an important reason for the delay in comprehensive coverage.   The advantages of the new Trinder's chromogenic reagent is that is easier soluble in water and all sublimation reactions are carried out in water.What’s more,its own physical and chemical properties are changed.However, the TMB is difficult to dissolve in water. In terms of use, it is still necessary to choose products according to the special circumstances of the manufacturer.   Desheng company is established in 2005 to develop biochemical reagent.We have five star series including the new Trinders chromogen substrate. The results of various comparisons show that our product quality is relatively outstanding which won many appreciations from customers.   Except the new Trinder's reagents,we also produce TMB series. The direct selling price of the factory is more favorable, and the quality of the products is guaranteed. Desheng insists on winning by quality, and provides customers with the best quality and the most considerate service.If you need them,pls contact us!

When the coagulated blood are centrifuged in the test tube, a medium is required to separate the serum and the blood clot, which forms a gel-like separation layer between the serum and the blood clot, and this medium is serum separation gel.   After the blood is centrifuged in the separation gel accelerator tube, it will be divided into three layers, the top layer of pale yellow liquid is serum, its specific gravity is between 1.02-1.03. The bottom layer is blood clot, its specific gravity is 1.08-1.09.Compared with the gravity, the blood clots is much higher than serum, and the specific gravity of serum separation gel is between 1.050-1.060, which is just between the serum and blood clot.   The separation gel produced by Desheng now has two kinds with national patents, one is polyacrylic acid separation gel; the other is resin separation gel based on polyacrylic resin as monomer. There are translucent,opaque and unique transparent.For the appearance, specific gravity and viscosity, we can customize the separation gel according to the requirements.   The anti-irradiation serum separation gel produced by Desheng has stable effect and strong thixotropy, which can effectively prevent the exchange of hemostatic cells and serum substances. It will not affect the stability of the composition of the serum within a certain period of time. It can also produce stable effects when used with other blood collection tube additives such as coagulants and anticoagulants according to the detection requirements. The anti-irradiation serum separation gel is used with a coagulant to quickly obtain serum samples, and the processed blood samples will not affect the test results of the samples after long-term transportation or bumps.   After 16 years of development, Desheng's serum separation gel has developed to the fourth generation, from the previous generation that is not radiation resistant to the current resin system that is resistant to radiation, which is already ahead of most domestic manufacturers. Desheng has a dedicated R&D team for separating gel technology. The price is very competitive with good quality. Now the daily output can reach 2-4 tons. The production process equipment is advanced, the delivery is timely, and the spot supply is guaranteed.Welcome to inquiry.

Most people knows the key role of carbomer in daily used cosmetics. It is an important ingredient that has good performance and can produce high viscosity in a small amount. Only need about 0.2% of carbomer to the skin care product lotion we usually use,a good thickening effect will be taken. But if it is used in gel cream, the amount will be relatively increased to achieve a good thickening effect.   What exactly is carbomer made of, and why does it have such a good thickening effect? In appearance, it is a white loose powder with strong hygroscopic properties,composed of a copolymer of polyalkylsucrose or polyalkylpentaerythritol and acrylic acid cross-linked polymer (acrylic acid or acrylate).   In the case of a dry powder, the carbon chain of the acrylic molecule is relatively tightly packed. Once dissolved in water, its molecules will slowly disperse and form hydrated molecules with water molecules. At this time, the closely connected carbon chains will disperse, resulting in high viscosity. The larger the hydrated molecules are, the greater the viscosity.   However, water cannot fully expand the molecule, and some neutralizing agents are needed to achieve a good expansion state, such as sodium hydroxide or green amine. If the carbomer is not dissolved in water, but is dissolved in a polyhydric alcohol or a polyethyl solvent, the hydrogen bond between the carbomer molecule and the solvent can be generated without adding any other neutralizing agent, resulting in a strong thickening and suspending properties.   Desheng Biochemical is a manufacturer specializing in the production of carbomer. The carbomer developed and produced has high purity, good water solubility, stable process and small batch-to-batch variation. With high daily output and stable supply,a large number of new and frequent customers have accumulated repurchases. If necessary, welcome to consult and order.

Facial skin care products and sunscreen products account for 65% and 10% respectively of the skin care products retail market. This market is developing very fast with increasingly fierce competition and sophisticated consumers. Consumers who value time have been looking for high-efficiency and multifunctional products.High cost efficiency can not only save money, but also greatly save the time for skin care. The fiercely competitive market drives brands to look for better solutions. Especially popular brands, hope to promote their brand value in their cost-effective and multifunctional products.Carbomer polymers 940 play an important role in the personal care industry.   With different structures, Carbomer polymers 940 can provide functions such as thickening, changing rheological texture, emulsification stabilization, film-forming, regulating skin feel, and improving skin. In order to provide all of the above functions and make it easy to use. Desheng has made this idea a reality, let's take a look at what properties this polymer can bring to your skin care, sunscreen and makeup formulations.Carbomer polymers 940 is an all-in-one functional product for the development of skincare, makeup and sun protection products with broad compatibility, high functionality and a soft, powdery finish.   Features and Benefits: ✔ Has multiple functions ✔ Special skin feel characteristics: soft, powdery after-feel ✔ Emulsifying performance is not affected by HLB value ✔ Only 1% dosage can provide efficient film-forming properties, improve skin barrier and reduce skin moisture loss ✔ Compatible with high levels of metal oxides and clays such as 17% kaolin ✔ Diverse feeling experience ✔ The polymer exhibits a longer Newtonian fluid phase, resulting in a thicker, more homogeneous film on the skin ✔Polymer provides shear thinning properties for good skin spreading. Compounding with co-thickeners can increase yield for good stability.   Precautions ● In order to prevent the product from foaming, the stirring speed should be low speed to prevent the introduction of air. ● Carbomer polymers 940 can be pre-formulated with humectants as dispersions (polyols, etc.). ● Carbopol polymers 940 have the ability of shear thinning, and the longer the shear time is, the slower the viscosity recovery will be, and even cause the permanent loss of viscosity. ● Carbomer polymers 940 is not affected by temperature, does not support the growth of microorganisms and molds, and does not have surfactant properties. ● UV irradiation will cause irreversible loss of viscosity of Carbomer polymers 940 .   Desheng Carbomer polymers 940 can provide the functional of emulsion stability, rheology modification, film formation, toner dispersion, etc. Now the products have been sold all over the world, and have been unanimously praised after testing. If you are looking for direct manufacturer of carbomer , welcome to contact us.