The discussion centers on the effective mass of electrons in polyethylene and its dependence on the crystalline nature of the polymer. Participants explore the implications of effective mass in the context of charge carriers within this material, touching on both theoretical and practical aspects.
Participants show varying levels of understanding regarding the presence of mobile charge carriers in polyethylene, with some expressing skepticism. The discussion does not reach a consensus on the effective mass or its average value in polyethylene.
There are limitations regarding the definitions and assumptions about effective mass in the context of polymers, as well as the specific conditions under which mobile charge carriers may exist in polyethylene.
To say not exactly: effective mass describes the effects of all the internal forces exerted on an electron in a crystal.learner@123 said:how it depends on the crystalline nature of polymer.
Is there any average value defined for polyethylene .hokhani said:To say not exactly: effective mass describes the effects of all the internal forces exerted on an electron in a crystal.
That's true ,but very small leakage current flows at high field ratings (KV/mm) .For that i want effective mass.DrDu said:I didn't know that in polyethylene you have mobile charge carriers at all. It is a very good insulator.