The difference between pvpp and pvp

PVPK30 is a high polymer with K value range of 28-32 in the polyethylpyrrolidone (POvidone for short) series, with good water solubility and soluble in various organic solvents. PVPP is a cross-linked polyvinylpyrrolidone, a cross-linked polymer of polyvinylpyrrolidone that is almost insoluble in any solvent. PVP40, short for PVPK40, is a polymeric polymer with K value of about 40 in the polyethylene pyrrolidone (POvidone) series, and the properties of PVPK30 are basically the same. But the K value increases, the molecular weight of the polymer also increases, and the viscosity of the solution increases correspondingly.

Polyvinylpyrrolidone is PVP, cross-linked polyvinylpyrrolidone is PVPP, as the name suggests, PVPP is the cross-linked state of PVP, with disintegration, PVP only strong hygroscopicity.

What is the difference between pvp40 and pvpk30 and pvpp

1. Different meanings

pvp40: It is a high polymer with K value of about 40 in the polyethylene pyrrolidone series.

pvp-k30 is a non-ionic polymer compound.

pvpp: Generally refers to crosslinked polyethylene pyrrolidone.

2, the range of K values is different

pvp40: The K value is about 40.

pvp-k30: The K value ranges around 30.

pvpp: there is no K value.

3, viscosity is different

pvp40: Stronger bonding than pvp-k30 and pvpp.

pvp-k30: Good adhesion.

pvpp: Has excellent adhesion.

4. Different smells

pvp40: Low odor.

pvp-k30: Low odor.

pvpp: has a slight odor.

5. Different characteristics

pvp40: Excellent and unique performance.

pvp-k30: Excellent and unique performance.

pvpp: has a strong expansion performance and the ability to complex with a variety of substances.