Chigadzirwa Zita:polyurethane

Chigadzirwa Molecular chimiro:

Makemikari Zvivakwa:

Polyurethane (pu), izita rizere rePolyurethane, inzvimbo yePolymer. 1937 naOtto bayer uye kumwe kugadzirwa kwezvinhu izvi. Kune marudzi makuru maviri ePolyurethane, polyester mhando uye polyeter mhando. Vanogona kuitwa muPolyureThane Purassics (kunyanya foam), pururethene fibers (inonzi Spandex muChina), polyurethane rabha uye elastomers.
Inoshanduka polyurethane inonyanya kuve mutsara wetsetse neTermoplasticsity, iyo ine kugadzikana kuri nani, kupesana nemakemikari, kusimba uye zvekumanikidza uye nekumanikidza kushoma kusiyana. Iyo ine yakanaka yekupisa insulting, insolising, kuvhunduka kupokana, uye zvinhu zvinodhaka. Naizvozvo, inoshandiswa sekurongedza, kurira kwekusimbisa uye kusefa zvinhu. Rudzi rwePolyurethane mapurasitiki, inishuwarenzi, yakakwirira yekuuraya, kupokana kwemakemikari, zvinhu zvakanaka zvemagetsi, kugadzirisa kuri nyore, uye kusimuka kwemvura. Iyo inonyanya kushandiswa seyakagadzirwa zvinhu zvekuvaka, mota, maindasitiri ekushandisa, kupisa kwekupa uye kupisa kweremal. Polyurethane Elasomer performance pakati pePurasitiki uye rabha, kupokana nemafuta, kupfeka kurwisa, kupararira kupesana, kushamisika, kuomarara, kuomarara. Iyo inonyanya kushandiswa muShangu Indasitiri uye Indasitiri yekurapa. Polyurethane anogona kuitwawo mumakonzo, majasi, synthetic yeganda, nezvimwe.

Chikumbiro:

Polyurethanes ndeimwe yezvinhu zvakanyanyisa zvinhu zviri munyika nhasi. VAKAWANDA VAKAWANDA VANOTENDA KUTI VANOTI VANOTENDA MUFANANIDZO MUZVINHU ZVINOGONESESA MUZVINHU ZVINOGONESESA UYE ZVINANGWA, KUPEDZISIRA, COLANTS uye Elastomers uye Elastomers uye Elastomers. Polyurethanes akawedzera kushandiswa mukati memakore makumi matatu apfuura mune dzakasiyana siyana dzekushandisa nekuda kwekunyaradza kwavo, mutengo unobhadharwa, simba rekuchengetedza uye kugona kugona uye kugona kwenyama. Ndezvipi zvimwe zvezvinhu zvinoita polyurethanes zvinodikanwa? Polyurethane Durability inobatsira zvakanyanya kune iyo yakareba hupenyu hwezvigadzirwa zvakawanda. Kuwedzerwa kwechigadzirwa chechigadzirwa chehupenyu hwekutenderera uye zvekuchengetedza zviripo zvakakosha kufunga kwezvakatipoteredza zvinowanzofarira kusarudzwa kwePolyurethanes [19-21]. Polyurethanes (Pus) anomiririra kirasi yakakosha yeTermaspastics uye orgmoset polymers seyavo, inopisa, uye makemikari zvivakwa zvinogona kugadziriswa nekuita kwakasiyana-siyana polysols uye poly