Binding Properties of Starch Paste, PVP-K30 and Starch+PVP -K -30

What is about the detail comparison on the basis of binding properties, soft forming granules and hard forming granules between the Starch Paste , PVP K 30 and Starch Paste- PVP K-30. Do the comments and reply.

Starch paste+pvp are harder
then starch Paste
then
Pvpk30

If single binder want to use, which one is ideal and why?

pvpk30

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PVP k30 is ideal bcz it is soluble both in water and organic solvent.

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