Polyurethanes anoshandiswa zvakanyanya ma polymers anoumbwa nekuita ma polyols ane diisocyanates pamberi pemakemikari akadai se catalysts uye additives.Iwo anoshandiswa kugadzira zvakasiyana-siyana zvezvigadzirwa munenge maindasitiri ese, akadai semagetsi, mota, shangu, kuvaka, kurongedza, nezvimwe, kuti zviumbwe kuita zvimiro zvisina kujairika uye kuwedzera vatengi uye zvigadzirwa zvemaindasitiri.

Polyurethane iri kushandiswa sefuro rakaomarara kumadziro uye kuvharisa denga, furo rinochinjika mufenicha, uye sezvinonamira, machira, uye zvisimbiso zvemukati memotokari.Zvose izvi zvinhu zvinogona kupa pfuma ye121 BPSkumusika we polyurethane panguva yekufanotaura makore e2022-2032.

Mashandisirwo makuru e polyurethane ari mu elastomers, furo, uye machira anopa zvakanakisa abrasion kuramba.Rigid polyurethane foams ari kushandiswa zvakanyanya semidziyo yekudzivirira nekuda kwemusanganiswa wekuita-mutengo uye yakaderera kupisa kupisa midziyo.Yakanaka yakaderera-tembiricha kugona, yakafara molecular chimiro kusiyanisa, yakaderera mutengo, uye yakakwira abrasion kuramba zvese zvinotsigira kukura kwemusika.

Nekudaro, kusagona kwemamiriro ekunze, kushomeka kwekushisa, kuve nekupisa, nezvimwewo, zvinogona kukanganisa kukura kwe polyurethane mumakore anotevera.

Declaration:Zvimwe zvemukati / mapikicha ari muchinyorwa ichi anobva kuInternet, uye kwakabva kwacherechedzwa.Izvo zvinongoshandiswa kuratidza chokwadi kana maonero anotaurwa muchinyorwa chino.Izvo ndezvekutaurirana uye kudzidza chete, uye hazvisi zvezvimwe zvekutengeserana zvinangwa.Kana pane chero kukanganisa, tapota taura nesu kuti tibvise pakarepo.