Shellac as a multifunctional biopolymer: A review on properties, applications and future potential

Area of Science:

• Natural Polymers
• Biomaterials
• Sustainable Chemistry

Background:

• Shellac is a natural resin derived from lac insects, functioning as a polyester macromolecule.
• It possesses valuable properties like film-forming, adhesion, and solubility, leading to historical industrial use.
• Recent demand for natural products has spurred new applications for shellac.

Purpose of the Study:

• To provide a comprehensive review of shellac, encompassing its forms, structure, and properties.
• To explore the diverse and emerging applications of shellac.
• To highlight the future potential of shellac as a sustainable material.

Main Methods:

• Literature review of shellac's chemical structure and properties.
• Analysis of historical and contemporary industrial applications.
• Exploration of shellac's potential in emerging technologies.

Main Results:

• Shellac's polyester macromolecule structure underpins its versatile properties.
• Applications span traditional uses to advanced fields like green electronics and 3D printing.
• Shellac demonstrates significant promise as an environmentally friendly material.

Conclusions:

• Shellac is a valuable natural biopolymer with a wide range of properties.
• Its application scope is expanding, particularly in sustainable technologies.
• Shellac presents a viable green alternative to synthetic polymers across multiple sectors.