This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: This removes the cross- link making the mixture fluid again. Viscosity of PVA- Borate- H2SO4 T1: 0.21 s/3cm 2mL of Borate is added T1: 1.31 s/3cm NOTE: The times become less and less accurate as more borate is added because PVA becomes so thick and viscous measurement is difficult. One might recommended that in terms of the results provided here that the numbers be used in a sort of qualitative fashion. For example the viscosity of the PVA-borate (2mL) is substantially more than the PVA borate(1mL) but not necessarily twice as viscous. Conclusion Cross- linking increases the viscosity of a polymer solution....
View Full Document