Structure and properties of sodium carboxymethyl cellulose

Carboxymethyl cellulose is an anionic, linear, water-soluble cellulose ether, which can make the viscosity of most commonly used aqueous preparations change greatly. In the food industry has practical value is its sodium salt, so usually CMC refers to sodium carboxymethyl cellulose. In 1958, China first put into the industrial production of sodium carboxymethyl cellulose in Shanghai Cilu Factory.

2024-06-14

Application of Sodium Carboxymethyl Cellulose CMC in Textile Printing and Dyeing Industry

In recent years, the textile industry has used sodium carboxymethyl cellulose CMC instead of starch as a sizing agent. Practice has proved that CMC sizing not only saves a lot of food and oil, but also is much superior to starch, animal glue and so on. In cotton, silk, wool and chemical fibers, synthetic fibers or blended fabrics, warp yarn with CMC as sticking material has the following advantages: CMC aqueous solution is clear, transparent, uniform, with good stability, with pump circulation or stirring without change can be taken at any time according to production needs. CMC aqueous solution is rich in viscosity and film formation, can form a smooth, wear-resistant, flexible film on the warp surface, can endure the absolute strength of the loom, and provide favorable conditions for high-speed production. The yarn treated with CMC aqueous solution is easy to dry, shiny and soft.

2024-06-14

Effect of sodium ions in sodium carboxymethyl cellulose (CMC) on the sintering of ceramics

As a component of CMC, the role of sodium ion in the ceramic sintering process may be affected by many factors, including its content in CMC, the type of ceramic material, sintering temperature and time.

2024-06-14

Functional properties of CMC in food applications

Edible sodium carboxymethyl cellulose can play a role in emulsifying and stabilizing beverages containing oil and protein. General oil and fat beverages are characterized by different degrees of fat and a certain amount of protein, which are easy to separate and float during storage, forming an unsightly "collar", Affect the appearance of the product. In addition, the protein is easy to coagulate and separate, especially the product with low pH value, the protein is bound to coagulate, and CMC-Na can effectively solve these problems. It can be dissolved in water as a transparent and stable colloid, which can stabilize the protein, reduce the surface tension between fat and water at the same time, and make the fat fully emulsified. Therefore, CMC-Na are often used as thickeners in the food industry.

2024-06-14

Production Process and Application of Sodium Carboxymethyl Cellulose (CMC)

Sodium carboxymethyl cellulose (CMC) is an anionic, linear, water-soluble cellulose ether, which is a derivative of natural cellulose and chloroacetic acid by chemical modification. Its aqueous solution has the functions of thickening, film forming, bonding, water retention, colloid protection, emulsification and suspension. It can be used as flocculant, chelating agent, emulsifier, thickener, water retaining agent, sizing agent, film forming material, etc. It is widely used in food, medicine, electronics, pesticide, leather, plastic, printing, ceramics, daily chemical industry and other fields.

2024-06-14

Application of sodium carboxymethyl cellulose in petroleum exploitation

Sodium carboxymethyl cellulose is used in oil and natural gas drilling, well digging and other projects ① CMC-containing mud can make the well wall form thin and firm, low permeability filter cake, so that the water loss is reduced. After adding CMC to the mud, the drilling rig can get a low initial cutting force, so that the mud is easy to release the gas wrapped in it, and the debris is quickly discarded in the mud pit. The drilling mud and other suspended dispersion, has a certain period of existence, after adding CMC can make it stable and prolong the existence period.

2023-11-30

Luoyang Hengxin Polymer Materials Co., Ltd. Annual Output of 20000 Tons of Sodium Carboxymethyl Cellulose Construction Project EIA Publicity

Luoyang Hengxin Polymer Materials Co., Ltd. plans to build a construction project with an annual output of 20000 tons of sodium carboxymethyl cellulose in Huayang Industrial Agglomeration Area of Mengjin County. In order to maintain the legal environmental rights and interests of the public in the area where the project is located, we can more comprehensively understand the environmental background information of the project impact area, find potential environmental problems, and make up for possible negligence and omission in the environmental impact assessment of the project, in accordance with the relevant provisions of the "the People's Republic of China Environmental Impact Assessment Law" and the "Interim Measures for Public Participation in Environmental Impact Assessment" (Huanfa 2006[28]), the public participation link of this project will be publicized * * * times to listen to the opinions and suggestions from all walks of life on the environmental impact of the construction project of Luoyang Hengxin Polymer Materials Co., Ltd. with an annual output of 20000 tons of sodium carboxymethyl cellulose and related environmental protection work. The main contents are as follows:

2023-11-30

Introduction to the use of sodium carboxymethyl cellulose

The sodium carboxymethyl cellulose is directly mixed with water and prepared into a paste-like gel for later use. In the configuration of CMC paste, first in the mixing cylinder with a mixing device to add a certain amount of clean water, in the case of opening the mixing device, the CMC slowly and evenly sprinkled into the batching cylinder, stirring, so that CMC and water completely fusion, CMC can be fully dissolved. When dissolving CMC, the reason why it is necessary to spread evenly and stir continuously is "to prevent agglomeration, agglomeration and reduction of CMC dissolution when CMC meets with water phase" and to improve the dissolution rate of CMC. The time of stirring and the time of complete dissolution of CMC are not consistent. They are two concepts. Generally speaking, the time of stirring is much shorter than the time required for complete dissolution of CMC. The time required for both depends on the specific situation.

2023-11-30