Function Synergy of Cross-Linked Cationic PVA Polymer to AMPS-Type Fluid Loss Additive Used for Cement-Based Material

Figure 4

FTIR spectrum of the PVAGB polymer additive (solid blue line). PVA: polyvinyl alcohol; PVAGB-U: PVA modified by glyoxal, boric acid, and urea [19]; PVA-G: PVA modified by glyoxal; PVA-G-B: PVA modified by glyoxal and boric acid (also abbreviated as PVAGB).

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