Umbhobho wePUkwayePA ithumbuziindidi ezimbini ezidumileyo zemibhobho esetyenziswa kwizicelo ezahlukeneyo.Ngelixa bobabini besebenzela injongo yokuhanjiswa kwamanzi okanye umoya, banomahluko ohlukileyo ngokweempawu zabo kunye nokusebenza.
Omnye umahluko obonakalayo phakathi kwepayipi le-PU kunye ne-PA hose bubunzima babo.Imibhobho ye-PU ithambile xa ithelekiswa noogxa babo be-PA.Oku kuthamba kwenza ukuba imibhobho ye-PU ibe bhetyebhetye ngakumbi kwaye kulula ukuyiqhuba, ivumela ukufakwa lula kunye nokusetyenziswa kwiindawo ezixineneyo.Kwelinye icala, imibhobho ye-PA inobunzima obuphezulu, nto leyo ebenza babe ngqongqo kwaye bangabi bhetyebhetye.
Omnye umehluko obalulekileyo phakathi kwe-PU hose kunye ne-PA hose ihambelana nobushushu kunye nokumelana noxinzelelo.I-PA hoses inobushushu obuphezulu kunye nokumelana noxinzelelo xa kuthelekiswa neetyhubhu zePU.Oku kubenza bafanelekele izicelo apho ukuhanjiswa kwamanzi ashushu okanye iigesi zibandakanyekayo, kunye neenkqubo zoxinzelelo oluphezulu.Ngokuchasene noko, i-PU hoses ayixhatshazwanga kubushushu obuphezulu kunye noxinzelelo, ukunciphisa ukusetyenziswa kwabo kwiimeko ezinjalo.
Imibhobho ye-PU iyaziwa ngokuxhathisa kwayo ngokugqwesileyo.Ziyakwazi ukumelana nokuguga kunye nokukrazula, zizenze zilungele ukusetyenziswa apho ithumbu lidibana nemigangatho erhabaxa okanye liva intshukumo rhoqo.Le propati ye-PU hoses iqinisekisa ukuhlala kwayo kunye nobomi obude, ibanika umda we-PA hoses malunga nokuphila ixesha elide.
Ngokubhekiselele kwimichiza yokumelana nemichiza, zombini i-PU kunye ne-PA hoses zibonisa ukuchasana okulungileyo kuluhlu olubanzi lweekhemikhali.Banokumelana nokuvezwa kwi-oyile, izinyibilikisi, iiasidi, kunye neealkali, zibenza bafanelekele usetyenziso lwemizi-mveliso eyahlukeneyo.Nangona kunjalo, kubalulekile ukuqaphela ukuba ukuchasana okuthe ngqo kwiikhemikhali ezithile kunokwahluka ngokuxhomekeke ekuqulunqweni kombhobho, ngoko ke kubalulekile ukukhetha uhlobo oluchanekileyo lwe-hose kwisicelo esijoliswe kuyo.
Xa kuziwa ekusebenzeni kakuhle kweendleko, imibhobho ye-PU ithande ukufikeleleka ngakumbi xa kuthelekiswa nemibhobho ye-PA.Oku kubenza babe lukhetho oludumileyo lwezicelo apho imiqobo yohlahlo lwabiwo-mali ixhalabisayo.Ukongeza, imibhobho ye-PU ilula ngokwentelekiso, eyenza ukuphatha kunye nokuhamba kube lula kwaye kube lula ngakumbi.
Isishwankathelo, umahluko phakathi kwe-PU hose kunye ne-PA hose kubunzima babo, ubushushu kunye nokumelana noxinzelelo, ukuxhathisa i-abrasion, ukumelana neekhemikhali, kunye nokusebenza kakuhle kweendleko.Imibhobho ye-PU ithambile, ibhetyebhetye ngakumbi, kwaye inika ukuxhathisa okugqwesileyo kwe-abrasion, ngelixa i-PA hoses inobushushu obuphezulu kunye nokumelana noxinzelelo.Ukhetho phakathi kwezi zibini luxhomekeke kwiimfuno ezithile zesicelo, ezifana nobushushu, uxinzelelo, kunye nohlobo lolwelo okanye igesi ehanjiswayo.
Ixesha lokuposa: Jun-26-2023