How do cellulose nanocrystals act as barriers?

Cellulose nanocrystals (CNCs) are highly promising renewable nanomaterials that have gained researchers' attention due to their remarkable mechanical properties and ability to act as barriers. One significant characteristic of CNCs is their high aspect ratio and surface area, which allows them to form dense networks when dispersed in a polymer matrix. These networks create physical obstacles that impede the diffusion of gases, liquids, and even charged particles. Moreover, CNCs can undergo surface modification to enhance their barrier properties by reducing permeability or repelling substances. Their ability to act as effective barriers makes CNCs ideal candidates for various applications, including food packaging, coatings, and drug delivery systems, as they can significantly prolong shelf life and improve the stability and safety of products.

This mind map was published on 30 November 2023 and has been viewed 66 times.