tselluloosiatsetaadi

Tselluloosiatsetaadi, also known as cellulose diacetate or simply acetate, is a manufactured fiber derived from cellulose, a natural polymer found in plant cell walls. It is produced by treating cellulose, typically from wood pulp or cotton linters, with acetic anhydride and acetic acid in the presence of a catalyst. This chemical process acetylates the hydroxyl groups of the cellulose molecule, altering its properties.

The resulting material is a thermoplastic polymer that can be molded and extruded into various forms. Historically, cellulose acetate was widely used in the production of photographic film, replacing highly flammable nitrocellulose. It was also a significant material for textiles, particularly in the mid-20th century, valued for its silky feel, drape, and ability to be dyed in vibrant colors. It found applications in clothing such as dresses, blouses, and linings, as well as in home furnishings like curtains and upholstery.

In addition to its textile and film applications, cellulose acetate has been used in cigarette filters, where its fibrous structure helps to trap tar and nicotine. It also finds use in certain types of plastics, such as eyeglass frames and tool handles, due to its clarity and toughness. While newer synthetic polymers have replaced it in some areas, cellulose acetate remains a commercially important material, often chosen for its biodegradability and renewable origins compared to petroleum-based plastics. Its production and use are subject to environmental considerations, particularly regarding the chemicals involved in its manufacturing and its end-of-life disposal.