I will have a 10 hour layover at PVG.

There seems no bar in T1. If you don't mind, go to a coffee bar in the transfer area like Costa to ralax.

If you insist in your plan, in the International Departure Hall on 7F, T2, there is a Hourly Hotel, where you can have a rest and have some cocktails in its own bar. To achieve this, you have to go through the immigration, but you don't need to hold a visa. No worry!