Polyurethanes inowanikwa chero kupi zvako muhupenyu hwemazuva ano;chigaro chawakagara, mubhedha waunorara, imba yaunogara, motokari yaunotyaira - zvose izvi, pamwe nezvimwe zvisingaverengeki zvaunoshandisa zvine polyurethanes.Ichi chikamu chinoongorora mamwe emamwe mashandisirwo akajairika e polyurethanes uye inopa nzwisiso mukushandiswa kwavo.

Inowanikwa kupi?

Coatings

Mazhinji mabhanhire emazuva ano, angave emotokari netambo, pasi nemadziro, kana mabhiriji nemigwagwa, ane polyurethanes, ayo anodzivirira zvakachengeteka uye zvinobudirira nzvimbo dzakafumurwa kubva kumamiriro ezvinhu uye kusvibiswa kwakasiyana-siyana, kuitira kuti zvitaridzike zviri nani uye zvinogara kwenguva refu.

Kugara kwenguva refu, corrosion resistance uye kusamira kwemamiriro ekunze kwepolyurethanes inoita kuti ive yakakodzera kupfekedza marudzi ese enzvimbo.Zvishandiso zvinosiyana kubva pazvivakwa zvekongiri senge mabhiriji uye zvivakwa zvemotorway, kune zvingoro zvenjanji zvesimbi uye fenicha yemapuranga.

Adhesives / binders

Polyurethanes anosiyana-siyana zvekuti anowanikwawo ari muchimiro cheglue anogona kusunga pamwechete zvakachengeteka zvinhu zvakasiyana, sehuni, rabha, kadhibhodhi kana girazi.

Zvirongwa zvekuvaka, kunyanya, zvinotora mukana we polyurethane glues.Vagadziri vekurongedza uye vagadziri vekunze fenicha, avo vese vanoda kusimba uye kusimba muzvigadzirwa zvavo, zvakare vanowanzovimba ne polyurethane adhesives.

Polyurethanes inobatsira mukugadzirwa kwezvishandiso zvitsva zvakagadziridzwa kubva kune zvakaraswa uye zvakashandiswa zvakare.Semuyenzaniso, kupera-kwekushandisa matayi emotokari anogona kuitwa nhandare dzevana, matinji emitambo kana nzvimbo dzenhandare dzemitambo nekuda kwekunamira kwe polyurethane.

Hunhu hunosunga hwe polyurethane hwakavhura mikana mitsva yekubatanidza mhando dzakasiyana dzezvinhu.Zvikumbiro zvinosanganisira mabhodhi emhando yepamusoro ekugadzira makabati, nzvimbo dzebasa uye pasi pekicheni.Saizvozvo, polyurethanes inogona kushandiswa kusunga pamwe chete furo crumbs kugadzira kapeti underlay.Vakadarokudzokorora zviitikokubatsira kuchengetedza zviwanikwa zvePasi.Indasitiri yesimbi inoshandisadiisocyanatessehwaro hwezvisungo zvekugadzira molds yekukanda.

Polyurethane's adhesive properties inoshandiswawo mukugadzirwa kwepamusoro-soro inoumba zvigadzirwa zvehuni.Zvigadzirwa zvehuni zvakasanganiswa zvakagadzirwa kubva kune yakachengetedzeka masango zviwanikwa inzira chaiyo kune yepaneru zvigadzirwa zvinogadzirwa kubva kumiti mikuru yakakura yakatora makore kukura.Muitiro uyu unova nechokwadi chokuti miti yakawanda inosimwa pane kukohwewa uye, nokushandisa miti miduku inokura nokukurumidza inotora carbon dioxide yakawanda kupfuura miti yakura, inobatsira kuderedza kutemwa kwemasango.