- October 27, 2021
- Posted by: admin
- Category: News
What Is Cellulose Ether?
Cellulose ether is the powdered cellulose ether generated with wood fiber or refined short cotton fiber as the primary raw materials, after chemical therapy and also by the reaction of etherifying agents such as chlorinated ethylene, chlorinated propylene and also oxidized ethylene.
The production procedure of cellulose ether is complex. It starts with the removal of cellulose from cotton or timber, which then changes right into alkaline cellulose after adding sodium hydroxide and also by chemical reaction (alkaline solution). Under the action of etherifying representatives (etherification response), cellulose ethers are produced from alkaline cellulose with such processes as washing with water, drying out and also grinding.
Various etherifying representatives can transform alkaline cellulose right into various sorts of cellulose ethers. The molecular structure of cellulose is composed of the molecular bonds of dried sugar systems. Each sugar unify contains three hydroxyl teams. Under specific problems, the hydroxyl groups will be replaced by methyl, hydroxyethyl, hydroxypropyl and the like groups, and also can create cellulose of various ranges (as an example, if substituted by methyl, then it is called methyl cellulose; if replaced by hydroxyethyl, after that it is called hydroxyethyl cellulose; if substituted by hydroxypropyl, after that it is called hydroxypropyl cellulose). Given that methyl cellulose is a blended ether created by the etherification response, with methyl as the main material however consisting of a small amount of hydroxyethyl or hydroxypropyl, it is called methyl hydroxyethyl cellulose ether or methyl hydroxypropyl cellulose ether. Because of the distinction in the substituents (such as methyl, hydroxyethyl and also hydroxypropyl) and also the distinction in the level of alternative (the quantity of replaced substance of responsive hydroxyl in each cellulose), cellulose ethers of various ranges and also qualities can be gotten. Different ranges can be widely made use of in building, food as well as pharmaceutical markets, in addition to various other different areas such as everyday chemical industry and also oil industry.