Zambiri nayiloni mkulu kuuma, more avale zosagwira, makamaka pa nkhani yochitira; lililonse limatisokoneza polyurethane mphamvu ndi zoipa, koma muffling zotsatira zidzakhala bwino. Inde, pali nayiloni zofewa, ndi polyurethane ndi mkulu kuuma, ndi zina ziwiri angathe pafupifupi kuuma (ofewa ndi zovuta polyurethane nayiloni). Mwachidule monga zochitika zenizeni, izo ndi zoyenera zabwino. Ine nkani mokomera casters nayiloni, ena ake cholimba.

Polyurethane ndi mtanda pakati pulasitiki ndi mphira elastomer pakati ntchito zake zabwino padziko lonse la pulasitiki wamba ndi mphira palibe. Iwo ali wabwino katundu mafuta kukana, kukana yocheza, cheza zosagwira, katundu mkulu ndi mantha mayamwidwe gawo lotetezedwa ndi zina zotero.

Nayiloni ndi mtundu polyamide a utomoni pulasitiki. makina ake mkulu mphamvu, wabwino kulimba, mkulu kwamakokedwe, compressive mphamvu. Pakuti mantha, kugwedera mayamwidwe mphamvu amphamvu nkhawa, zimakhudza mphamvu ndi apamwamba kuposa pulasitiki ambiri. Dzimbiri kukana, ndipo ambiri mwa njira mchere zamchere, komanso kugonjetsedwa ndi asidi ofooka, mafuta, mafuta, kukana kuti solvents wamba ndi mankhwala onunkhira, mankhwala onunkhira anali inert, koma kugonjetsedwa zidulo amphamvu ndi oxidants. Pali kudziona wozimitsa, si poizoni, odorless, zabwino nyengo kukana, inert ndi kuukira zamoyo wabwino odana ndi bakiteriya, odana ndi nkhungu luso.

Kutentha polyurethane mawilo pa -43 ~ 85 ° C, abwino mawilo kutentha nayiloni pa -43 ~ 126 ° C, mkulu kutentha zosagwira, mwamphamvu kuposa nayiloni gudumu polyurethane gudumu; onsewo kusintha polyurethane mawilo nayiloni mawilo ndi ntchito ndi zabwino kwambiri; wosalankhula mbali, polyurethane mawilo kuposa nayiloni gudumu; chitetezo cha pansi kuposa polyurethane mawilo nayiloni gudumu; madzi, mawilo nayiloni polyurethane mawilo osauka; kukana kuti zimakhudzira ndi kumva kuwawa zinthu kuposa nayiloni mawilo polyurethane gudumu; onyenga mankhwala, bwino mawilo ntchito polyurethane, nayiloni gudumu bwino ntchito.