Chemical properties of Cellulose Fiber
Publish Time: 2024-06-07
Cellulose Fiber, as a kind of polysaccharide polymer material widely existing in nature, has unique and diverse chemical properties. The following are some key points about the chemical properties of Cellulose Fiber:
1. Solubility
Cellulose Fiber is neither soluble in water nor in general organic solvents such as alcohol, ether, acetone, benzene, etc. at room temperature. However, it can be dissolved in some special chemical reagents, such as copper ammonia Cu(NH₃)₄(OH)₂ solution and copper ethylenediamine [NH₂CH₂CH₂NH₂]Cu(OH)₂ solution. This solubility characteristic makes Cellulose Fiber show unique reaction performance in specific chemical treatments.
2. Alkali resistance
Cellulose Fiber is alkali-resistant, but alkali-containing cotton fibers can undergo strong oxidation with oxygen in the air. This property is of great significance in the chemical modification process of cellulose. Through appropriate alkali treatment, some physical and chemical properties of Cellulose Fiber can be changed.
3. Acid resistance
Cellulose Fiber has poor acid resistance and is prone to hydrolysis and degradation. In an acidic environment, the glycosidic bonds or other covalent bonds in the molecular chain of Cellulose Fiber may be destroyed, resulting in a decrease in the degree of polymerization, thereby affecting the performance of the fiber.
4. Reaction with oxidants
Cellulose Fiber is unstable to oxidants and can be oxidized by some oxidants. This reaction may cause changes in the structure and properties of Cellulose Fiber, so it is necessary to avoid contact with strong oxidants during the processing and use of cellulose.
5. Other chemical properties
Cellulose Fiber also has some other chemical properties, such as hygroscopicity and swelling. These properties make Cellulose Fiber widely used in textiles, papermaking and other fields.
In summary, the chemical properties of Cellulose Fiber are unique and diverse, which not only determine the existence form of Cellulose Fiber in nature, but also provide possibilities for its application in various fields.
