Common modification methods for nanocellulose

Nanocellulose is an important nanomaterial that can be modified in a variety of ways to obtain different properties and applications. The following are common nanocellulose modification methods:

1. Chemical modification:

Esterification: by introducing ester groups onto Improves its lipophilicity and mechanical properties nanocellulose .

Etherification: Introduce ether bonds to improve the solubility and stability of nanocellulose.

Oxidation: The hydrophilicity and surfactivity of nanocellulose are increased by oxidation treatment.

Nitration: Introducing nitro groups to change the chemical properties and stability of nanocellulose.

2. Physical modification:

Mechanical crushing: Using high-energy mechanical force or ultrasonic methods, the nanocellulose particles are smaller in size and their specific surface area are increased.

Ion radiation: Use ion beam radiation to change the structure and performance of nanocellulose.

Plasma treatment: Use plasma to treat nanocellulose to cause chemical changes in the surface.

3. Biomodification:

Enzymatic method: Use enzymes to perform specific enzymatic decomposition or modification on nanocellulose to change its performance and structure.

Microbial fermentation: Use microorganisms to synthesize specific biologically active substances to modify nanocellulose.

4. Compound modification:

Nanocomposite: Combining nanocellulose with other nanomaterials ( such as graphene oxide, nanometals, etc.) gives them new functions and performance.

Polymer composite: Mix nanocellulose with polymer to form a composite material to improve the strength and toughness of the material.

These methods can be used individually or in combination as needed to achieve specific performance regulation and functional improvements of nanocellulose.