Pwm ntxuav leej twg yog dab tsi?
Dimethylformamide feem ntau yog siv los ua ib tus neeg saib xyuas kev tu cev.Dimethylformamide muaj zog cev qhuav dej rau cov teeb meem organic, tshwj xeeb tshaj yog rau polyurethane. Nws yog qhov zoo tshaj plaws hnyav organic hnyav tam sim no.Thaum lub polyurethane adheres mus rau ntawm cov pwm, qhov seem yuav tsum soaked nrog dimethylformamide thiab ntxuav.