The thermal conductivity of the liquid film on the inner wall of the PVC polymerization kettle and the thermal conductivity of water at different temperatures

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1. When calculating the convective heat transfer coefficient of the liquid film on the inner wall of the polymerization kettle, it is necessary to use the thermal conductivity of the liquid film on the inner wall of the polymerization kettle. Please give me some advice.: What is the thermal conductivity of the liquid film on the inner wall of the kettle in PVC suspension polymerization? It is best to have an empirical formula (it should be related to temperature and conversion rate (or composition ratio)). 2. When calculating the heat transfer coefficient of the water film on one side of the jacket, the thermal conductivity of water at different temperatures must be used. What is the thermal conductivity of water at different temperatures? (I tried to check this, but couldn't find it). It is best to have an empirical formula (relative to temperature). Thanks.