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In this article,we prepare waterborne polyurethane(WPU)by polycarbonate diol,polyoxytetramethylene,dimethylol propionic acid and isophorone diisocyanate.We studied the stretch-oriented behavior of waterborne polyurethane films by universal tensile testing machine and FT-IR. And we analyzed the behavior of polyurethane orientation by infrared dichroism spectroscopy.
In this article, we prepared the waterborne polyurethane (WPU) by polycarbonate diol, polyoxytetramethylene, dimethylol propionic acid and isophorone diisocyanate. We studied the stretch-oriented behavior of waterborne polyurethane films by universal tensile testing machine and FT-IR. And we analyzed the behavior of polyurethane orientation by infrared dichroism spectroscopy.