Izinto ze-Shoe pu zenziwe ngezinto ezenziweyo ezenziwe ngelaphu lesikhumba lokulinganisa, ukuthungwa kwayo komelele kwaye kuhlala ixesha elide, njengesikhumba sePVC, iphepha laseItaliyane, ufele oluhlaziyiweyo, njl. njl., inkqubo yokuvelisa inzima. Ngenxa yokuba ilaphu lesiseko se-PU linamandla okuqina, linokupeyintwa ezantsi, ukusuka ngaphandle alikwazi ukubona ubukho belaphu lesiseko, elaziwa ngokuba yisikhumba esisetyenzisiweyo, liphawulwa ngobunzima obulula, ukuxhathisa, ukutyibilika, ukubanda. kunye nokumelana nomhlwa kwemichiza, kodwa kulula ukuyikrazula, amandla amabi oomatshini kunye nokumelana nokukrazula, umbala ophambili umnyama okanye umdaka, ukuthungwa okuthambileyo.
Izicathulo ze-PU zesikhumba zizicathulo ezenziwe ngelaphu eliphezulu elenziwe ngesikhumba samacandelo e-polyurethane. Umgangatho wezihlangu zesikhumba ze-PU nazo zilungile okanye zimbi, kwaye izihlangu ezilungileyo ze-PU zesikhumba zibiza kakhulu kunezihlangu zokwenyani.
Iindlela zokulungisa: Hlamba ngamanzi kunye ne-detergent, ugweme ukuxutywa kwepetroli, awukwazi ukucocwa owomileyo, unokuhlanjwa kuphela, kwaye ubushushu bokuhlamba abukwazi ukudlula ama-degrees angama-40, abukwazi ukuchasana nokukhanya kwelanga, awukwazi ukudibanisa nezinye i-solvents eziphilayo.
Umahluko phakathi kwezihlangu zesikhumba ze-PU kunye nezihlangu ezenziweyo: inzuzo yezihlangu zesikhumba ezenziweyo kukuba ixabiso lincinci, ukungahambi kakuhle kulula ukuqiniswa, kwaye ixabiso le-PU izihlangu zesikhumba zokwenziwa ziphezulu kunezihlangu ze-PVC ezenziwe ngesikhumba. Ukusuka kwisakhiwo sekhemikhali, ilaphu le-PU izihlangu zesikhumba zokwenziwa zisondele kwizihlangu zesikhumba, azisebenzisi iiplasticizers ukufezekisa iipropathi ezithambileyo, ngoko ke akayi kuba lukhuni, abe brittle, kwaye abe neengenelo zombala otyebileyo, iintlobo ezininzi ezahlukeneyo. yeepateni, kwaye ixabiso liphantsi kunezihlangu zesikhumba, ngoko ke ithandwa ngabathengi