Kungani ukhetha i-polyurethane ye-casters yezimboni futhi yiziphi izinzuzo zayo?

I-Polyurethane (PU), igama eligcwele le-polyurethane, iyinhlanganisela ye-polymer, eyakhiqizwa ngo-1937 ngu-Otto Bayer nabanye. I-polyurethane inezigaba ezimbili eziyinhloko: i-polyester ne-polyether. Angenziwa amapulasitiki e-polyurethane (ikakhulukazi igwebu), imicu ye-polyurethane (eyaziwa ngokuthi i-spandex e-China), irabha ye-polyurethane nama-elastomers. I-polyurethane iyimpahla ye-polymer elungele ukusetshenziswa njengesembozo samasondo lapho kwakhiwa ama-caster ezimbonini.

Izinzuzo eziyinhloko ze-polyurethane casters ikakhulukazi zimi kanje:

Okokuqala, ukusebenza kobubanzi obulungisekayo

Inani lezinkomba zokusebenza komzimba nemishini zingalungiswa ngokukhethwa kwezinto zokusetshenziswa namafomula, phakathi kwebanga elithile lezinguquko eziguquguqukayo, ukuze kuhlangatshezwane nezidingo ezihlukile zomsebenzisi zokusebenza komkhiqizo.

Okwesibili, ukumelana okuphezulu kwe-abrasion
Ebukhoneni bamanzi, uwoyela kanye nezinye izimo zokusebenza zemidiya ezimanzi, ukumelana nokugqoka kwe-polyurethane casters kuvame ukuphindaphinda izikhathi eziningana kuya kweziningi izikhathi zezinto ezijwayelekile zenjoloba. Izinto zensimbi ezifana nensimbi nezinye eziqinile, kodwa akusho ukuthi zingagugi!

Okwesithathu, izindlela zokucubungula, ukusetshenziswa okubanzi
Ama-elastomer e-polyurethane angabunjwa ngenjoloba yenhloso ejwayelekile ngokufaka ipulasitiki, ukuxuba kanye ne-vulcanizing (MPU); zingenziwa futhi zibe irabha ewuketshezi, ukuthululwa nokubumba noma ukufutha, ukuvala nokubumba i-centrifugal (CPU); zingenziwa futhi zibe izinto eziyimbudumbudu namapulasitiki ajwayelekile ngomjovo, i-extrusion, i-calendering, i-blow molding nezinye izinqubo (CPU). Izingxenye ezibunjiwe noma ezibunjwe ngomjovo, ngaphakathi kwebanga elithile lobulukhuni, zingabuye zisikwe, zigaye, zibhoboze nokunye ukucutshungulwa kwemishini.

Okwesine, ukumelana nowoyela, ukumelana ne-ozone, ukumelana nokuguga, ukumelana nemisebe, ukumelana nokushisa okuphansi, ukudluliswa komsindo okuhle, amandla okunamathela aqinile, i-biocompatibility enhle kakhulu nokuhambisana kwegazi. Lezi zinzuzo ziyisizathu sokuthi kungani ama-polyurethane elastomers asetshenziswa kabanzi kwezempi, i-aerospace, acoustics, biology kanye neminye imikhakha.