1. Origin, Structure, and Molecular Style
1.1 All-natural Source and Biochemical Account
(Animal Protein Frothing Agent)
Pet protein-based frothing agents are acquired largely from hydrolyzed keratin or collagen sourced from slaughterhouse byproducts such as unguis, horns, bones, and hides.
With regulated alkaline or chemical hydrolysis, these architectural healthy proteins are broken down into amphiphilic polypeptides abundant in amino acids like glycine, proline, and hydroxyproline, which have both hydrophilic (– NH ₂,– COOH) and hydrophobic (aliphatic side chains) useful teams.
This double fondness allows the molecules to adsorb successfully at air– water user interfaces during mechanical oygenation, reducing surface area stress and supporting bubble formation– an important demand for creating uniform cellular concrete.
Unlike synthetic surfactants, pet protein lathering agents are naturally degradable, safe, and exhibit superb compatibility with Portland concrete systems due to their ionic nature and modest pH buffering capability.
The molecular weight circulation of the hydrolysate– typically between 500 and 10,000 Da– straight affects foam security, drainage price, and bubble size, making process control during hydrolysis essential for constant efficiency.
1.2 Foam Generation System and Microstructure Control
When diluted with water (typically at proportions of 1:20 to 1:30) and introduced right into a foam generator, the protein service creates a viscoelastic movie around entrained air bubbles under high-shear conditions.
This movie resists coalescence and Ostwald ripening– the diffusion-driven growth of larger bubbles at the expense of smaller sized ones– by forming a mechanically durable interfacial layer enhanced through hydrogen bonding and electrostatic communications.
The resulting foam displays high expansion ratios (usually 15– 25:1) and reduced drain prices (
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