Uyini umehluko phakathi kwesikhumba se-PU nesikhumba se-PVC?

Ngokuthuthuka kwesayensi nobuchwepheshe, ubuchwepheshe bokukhiqiza kanye nezinga lenqubo yesikhumba sokwenziwa esingavuthiwe nakho kwenziwe ngcono kakhulu eminyakeni yamuva.Izinto zesikhumba zokwenziwa zisetshenziswa kabanzi ekukhiqizeni izikhwama, kanti izikhwama ze-PVC ne-PU zesikhumba sokwenziwa zithandwa ngabathengi abaningi!Kodwa njengabathengi abajwayelekile, abantu abaningi abawazi umehluko phakathi kwe-PVC ne-PU,

1. I-PU polyurethane enamathela esikhwameni ihlukaniswe nge-PU emhlophe yeglue enamathela kanye ne-PU isiliva glue coating.Izakhiwo eziyisisekelo zeglue emhlophe ye-PU kanye ne-silver glue coating ziyefana nalezo ze-PA coating, kodwa iglue emhlophe ye-PU neglue esiliva inokuzwakala kwezandla okugcwele, indwangu enwebekayo kanye nokushesha okungcono, kanye ne-PU glue enamathelayo ingamelana namanzi aphezulu. ingcindezi, futhi i-PU enamathela inomswakama wokungena, ukungena komoya, ukumelana nokugqoka, njll., kodwa izindleko ziphezulu futhi ukumelana nesimo sezulu kubi.

2. Uma kuqhathaniswa ne-PU enamathela, indwangu engezansi ye-PVC yokugqoka incane futhi ingabizi.Kodwa-ke, ifilimu yokugqoka i-PVC ayiyona nje enobuthi, kodwa futhi kulula ukuguga.Okubaluleke nakakhulu, isibambo se-PVC coating asisihle njengesembozo se-PU, futhi indwangu nayo iqinile.Uma usebenzisa umlilo, ukunambitheka kwendwangu yokugqoka ye-PVC kukhulu kakhulu kunokwendwangu yokugqoka ye-PU.

3. Ngaphezu komehluko phakathi kwe-PU kanye ne-PVC ehlanganiswe izindwangu ezikhwameni ezisesandleni ukuzwa nokunambitha, elinye iphuzu liwukuthi ukugqoka kwe-PU ngokuvamile kuyisikhumba, kuyilapho i-PVC iyingcina.

4. Inqubo yokukhiqiza ye-PU yesikhumba iyinkimbinkimbi kakhulu kunesikhumba se-PVC.Njengoba indwangu yesisekelo se-PU iyindwangu ye-PU enamandla amakhulu, ingambozwa phezulu kwendwangu yesisekelo futhi ifakwe phakathi nendawo, okwenza kube nzima ukubona ubukhona bendwangu yesisekelo.

5. Izinto ezibonakalayo zesikhumba se-PU zingcono kunezesikhumba se-PVC, ezinokumelana okuhle nokuguquguquka, ukuthamba, amandla aqinile kanye nokuphefumula komoya (i-PVC ayinakho).Iphethini yesikhumba se-PVC iyashisa icindezelwe i-roller yephethini yensimbi.Iphethini yesikhumba se-PU iyashisa icindezelwe ebusweni besikhumba esiqediwe kancane ngohlobo lwephepha lephethini.Ngemuva kokupholisa, isikhumba sephepha sihlukaniswa ukuze siphathwe phezulu.Intengo yesikhumba se-PU ingaphezu kokuphindwe kabili kwesikhumba se-PVC, futhi intengo yesikhumba se-PU enezidingo ezikhethekile iphakeme izikhathi ezingu-2-3 kunesikhumba se-PVC.Ngokuvamile, iphepha elinephethini elidingekayo lesikhumba se-PU lingasetshenziswa kuphela izikhathi ezingu-4-5, bese lichithwa.Umjikelezo wokusetshenziswa kwe-roller yephethini mude, ngakho-ke izindleko zesikhumba se-PU ziphezulu kunezesikhumba se-PVC.

Ngale ndlela, inqobo nje uma siqonda izici phakathi kwalokhu okubili, kuzoba lula kakhulu kubathengi abangewona ochwepheshe ukuhlonza ukuthi izikhwama ziyi-PU noma i-PVC, inqobo nje uma sizihlukanisa namaphuzu amathathu alandelayo: okokuqala, umuzwa. ithambile futhi iyanwebeka, kuyilapho umuzwa ubuthakathaka uma i-PVC iqinile.Okwesibili, bheka indwangu engezansi.Indwangu engezansi ye-PU ishubile futhi isendlalelo sepulasitiki sizacile, kuyilapho eye-PVC incane.Eyesithathu iyasha.Ukunambitheka kwe-pu kuzoba lula ngemva kokushiswa.

Ngokusekelwe kulokhu okungenhla, singaphinde sifinyelele isiphetho: uma kuqhathaniswa, ukusebenza kwesikhumba se-PU kungcono kunesikhumba se-PVC, futhi ikhwalithi yezikhwama ze-PU ingcono kunezikhwama ze-PVC!