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MEICELL® HEC (Hydroxy Ethyl Cellulose Ether)
MEICELL® HEC is a kind of non-ionic water-soluble polymer, and it is made from natural macro molecular material cellulose through various chemical reactions. It is odorless and odorless powdery solid material.
In the waterborne coating field, cellulose ether, being as the thickeners, has become one of the most important additives MEICELL® HEC (Hydroxyl Ethyl Cellulose Ether) is the most widely used among these cellulose ethers.
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MEICELL® (HEC)GENERAL PROPERTIES
MEICELL® Hydroxy Ethyl Cellulose (HEC) is a non-ionic, water-soluble polymer derived from cellulose through a series of chemical and physical processes.
MEICELL® HEC is a white to light yellowish, odorless and tasteless powder, readily soluble in hot or cold water to form a viscous gel solution. When pH in solution is within 6.0 and 10.0, the solution is quite stable. Since MEICELL® HEC group is non ionic one in water solution, it won’t be reacted with other anions or cations and insensitive to the salts. But HEC molecule is capable of generating esterification, etherification and acetal reaction, so it is possible to make it insoluble in water or improve its properties MEICELL® HEC also has good film-forming ability and surface activity.
MEICELL® HEC can easily dissolves in cold water. Surface-treated products can be added directly to aqueous systems. This excellent property provides exceptional handling flexibility and control of solubilization rate. Although our MEICELL® untreated MEICELL® products are soluble in cold water, they must be completely dispersed in the water to prevent lumping.
MEICELL® HEC products anti-fungi and bacterial property provides excellent viscosity stability for long time. Also, they can provide excellent viscosity stability for a long time period.
MEICELL® HEC is stable in the range of pH 6.0~10.0. However, the solubility can be affected by acid or alkali.
MEICELL® HEC products are often used as surfactants in aqueous solutions to provide emulsification, protective colloid action, and phase stabilization.
MEICELL® HEC increases solution’s viscosity, and improves adhesion performance, and suspension system stability is also increased. Generally, the viscosity is highly related to the molecular weight, chemical type, and concentration of the specific MEICELL® HEC product.
MEICELL® HEC can form clear, tough and flexible film and provide excellent anti-oils and greases properties. Especially in food applications, this property is often used to retain moisture and prevent oil absorption during cooking.
Nomenclature & Classification
MEICELL® HEC (Hydroxyethyl Cellulose)；
For example: H-100Z
(Hydroxy Ethyl cellulose with viscosity 100,000 mPa·s (2% solution)