Explanation

It is a kind of cellulose ether polymer obtained by replacing hydroxyl group in cellulose molecule with ethoxy group. White or light amber fiber or powder particles, as a plastics, contain 44.5% -48.0% ethoxy group. Transparent and colorless, not easy to combustion, but it will be oxidized and decomposed under light. antioxidant must be added, which is resistant to concentrated alkali but not acid, less moisture absorption, heat resistance and cold resistance. The thin film has a refractive index of 1.47 and can fully transmit 310-400nm light waves. cellulose is first dissolved into alkaline cellulose with sodium hydroxide, and then reacted with chloroethane to obtain the product. It is mainly used as cold resistant coatings, cold resistant plastics, melting resistant coating (such as gear coating, bearing coating, etc.), capacitor intermediate coating, peelable plastics, etc., especially in the aviation industry.

Classification