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CELLOSIZE&#; Hydroxyethylcellulose (HEC) is a line of nonionic, water-soluble, cellulose based polymers from Dow. Hydroxyethyl cellulose is produced by treating reacting alkali-cellulose with ethylene oxide. This reaction converts some of the hydroxyl groups on the cellulose polymer to hydroxyethyl groups. The resulting polymer is a cellulose ether that is primarily used as a thickener for water-based paint, ink, and adhesive formulations.
CELLOSIZE&#; Hydroxyethylcellulose (HEC) grades are defined by their molecular weight or more specifically the viscosity of the aqueous solution that they produce at 2% by weight. For example, CELLOSIZE&#; QP-300 will produce a solution of 300 cPs when added to water at 2%. Solutions of low molecular weight CELLOSIZE&#; grades have a rheology that is near Newtonian and useful for applications that require a stable viscosity regardless of shear. Solutions of high molecular weight CELLOSIZE&#;, however, behave in a non-Newtonian manner and will have a pseudo-plastic rheology. This pseudoplasticity makes high viscosity grades of CELLOSIZE&#; Hydroxyethylcellulose an ideal thickener for latex paint applications where the paint must stay on the brush, yet flow out easily upon brushing.
In addition to its useful nature as a thickening agent, CELLOSIZE Hydroxyethylcellulose (HEC) also provides the benefits of a suspension aid, binder, emulsifier, film former, emulsion stabilizer, dispersant, water retention aid, and protective colloid.
CELLOSIZE&#; Hydroxyethylcellulose offers narrow viscosity ranges, consistent viscosity reproducibility, and excellent solution clarities. The applications for CELLOSIZE&#; range but in the industrial space it is primarily used for general thickening applications in latex paints, household cleaners and tape-joint compounds. Select a grade below for more information or contact us to speak with one of our dedicated product experts.
ChemPoint is a Dow authorized supplier of CELLOSIZE&#; Hydroxyethylcellulose (HEC) in industrial applications, providing dedicated marketing, sales, order fulfillment, and technical support for customers located in the US, Canada, and Western Europe.
Before you buy hydroxyethyl cellulose, you should know its usage, production process, and some precautions. Let Kemox bring you together to explore.
What is hydroxyethyl cellulose used for?
Hydroxyethyl cellulose, or HEC for short, is prepared from alkaline cellulose and ethylene oxide (or chloroethanol) by etherification reaction, it is a non-ionic cellulose mixed ether, which is odorless, non-toxic, and presents a white or off-white powder. It can form transparent viscous colloids in an aqueous solution with thickening, suspending, dispersing, emulsifying, film-forming and water-retention properties. Therefore, hydroxyethyl cellulose has a wide range of applications in many fields. Hydroxyethyl cellulose is a versatile &#;elf&#;. In the construction industry, it is used as a stabilizer for paints, allowing them to spread more evenly on walls. In the oil industry, it is an important part of the drilling mud, stabilizing the well wall and preventing well collapse. In the cosmetic field, it is widely used in emulsions, hairsprays and other products by virtue of its good film-forming and water-retaining properties.
Production Process of Hydroxyethyl Cellulose
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The production process of hydroxyethyl cellulose is relatively complex, involving multiple steps such as chemical reaction and physical treatment. In brief, the process mainly includes several steps such as raw material preparation, etherification, neutralization, washing, drying and crushing. Engineers mainly choose cellulose as the starting raw material, and after pretreatment to get suitable cellulose pulp meal for reaction. Next, through the etherification reaction, the cellulose pulp meal is etherified with ethylene oxide under the action of an alkaline catalyst to generate hydroxyethyl cellulose. After completing the etherification reaction, the remaining catalyst and unreacted raw materials are removed by neutralization and washing steps. After drying and crushing, the final hydroxyethyl cellulose product is obtained. The whole process is rigorous and precise to ensure the quality of the product.
What should I pay attention to when buying hydroxyethyl cellulose?
Outstanding Hydroxyethyl Cellulose Manufacturers in China
Although the development of hydroxyethyl cellulose in China is relatively late, some outstanding enterprises have emerged. These companies have strict quality management systems, relatively advanced production processes and equipment, and rich industry experience. For example, Kemox produces hydroxyethyl cellulose with advanced production technology and strict quality control, which enjoys a good reputation in the market. Kemox attaches great importance to environmental protection and is committed to green and sustainable production methods.
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Dear friends, I hope this &#;Guide to Buying Hydroxyethyl Cellulose&#; can help you. To buy hydroxyethyl cellulose, you need to consider the product quality, specifications, product use, supplier reputation, price, technical support and service, and other factors to choose the right product for your needs.
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