1. Origin, Structure, and Molecular Design
1.1 Natural Resource and Biochemical Profile
(Animal Protein Frothing Agent)
Pet protein-based foaming representatives are acquired mainly from hydrolyzed keratin or collagen sourced from slaughterhouse byproducts such as unguis, horns, bones, and hides.
Through regulated alkaline or enzymatic hydrolysis, these structural proteins are damaged down into amphiphilic polypeptides rich in amino acids like glycine, proline, and hydroxyproline, which possess both hydrophilic (– NH â‚‚,– COOH) and hydrophobic (aliphatic side chains) functional groups.
This twin fondness enables the molecules to adsorb successfully at air– water user interfaces throughout mechanical aeration, decreasing surface tension and stabilizing bubble development– an essential demand for generating uniform cellular concrete.
Unlike synthetic surfactants, pet healthy protein frothing agents are biodegradable, safe, and exhibit outstanding compatibility with Rose city cement systems due to their ionic nature and modest pH buffering ability.
The molecular weight distribution of the hydrolysate– generally between 500 and 10,000 Da– straight affects foam security, drain price, and bubble dimension, making process control throughout hydrolysis crucial for regular efficiency.
1.2 Foam Generation System and Microstructure Control
When weakened with water (generally at ratios of 1:20 to 1:30) and presented right into a foam generator, the healthy protein option develops a viscoelastic film around entrained air bubbles under high-shear conditions.
This movie resists coalescence and Ostwald ripening– the diffusion-driven development of bigger bubbles at the expenditure of smaller sized ones– by forming a mechanically robust interfacial layer enhanced through hydrogen bonding and electrostatic communications.
The resulting foam exhibits high development proportions (usually 15– 25:1) and low water drainage rates (
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