US20240327641
2024-10-03
Chemistry; metallurgy
C08L89/00
Innovative biodegradable moldable foams provide an eco-friendly alternative to traditional petroleum-based materials like polystyrene. These soy-based foams are designed to be compostable and non-toxic, making them suitable for packaging and protecting valuable items during shipping, such as electronics and household goods.
The inventive foams consist primarily of cross-linked soy proteins combined with gas bubbles, resulting from hydrogen peroxide reacting with active dry yeast. Additional components may include glycerin, soy wax, various bases, salts, and cross-linking agents like dicarboxylic acids. The density of these foams can be adjusted between 70 kg/m³ to 350 kg/m³, depending on the production conditions and the materials used.
The process for creating these soy-based foams involves several steps: mixing soy protein-rich compounds, homogenizing the mixture, and adding cross-linking agents. A source of gas bubbles is introduced to create a foaming solution, which is then combined with the protein mixture. The foam can be molded or dried without a mold to produce loose packing material.
The soy-based foam can incorporate various additional ingredients, such as sugars or fibers, enhancing its properties. The flexibility in composition allows for the creation of foams with specific characteristics tailored for different applications, including construction materials and protective packaging.
These biodegradable foams address the growing environmental concerns associated with traditional plastic materials that contribute to pollution and microplastic contamination. By utilizing renewable plant-based resources, this technology promotes sustainability and offers a practical solution for eco-conscious consumers and industries.