Chikopa cha PU, chomwe chimadziwikanso kuti chikopa cha polyurethane, ndi mtundu wa chikopa chopangidwa chomwe nthawi zambiri chimagwiritsidwa ntchito ngati chikopa chenicheni. Zimapangidwa pogwiritsira ntchito zokutira za polyurethane, mtundu wa pulasitiki, ku nsalu yotchinga.
Chikopa cha PU chitha kuonedwa ngati chanyama chifukwa chimapangidwa popanda kugwiritsa ntchito nyama iliyonse. Mosiyana ndi zikopa zenizeni, zomwe zimachokera ku zikopa za nyama, PU chikopa ndi chinthu chopangidwa ndi anthu. Izi zikutanthauza kuti palibe nyama yomwe imavulazidwa popanga zikopa za PU, zomwe zimapangitsa kuti ikhale yopanda nkhanza komanso yochezeka.
Nthawi yotumiza: Oct-06-2023
