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

Uyini umehluko phakathi kwesikhumba se-PU nesikhumba se-PVC?
Ngokuthuthuka kwesayensi nobuchwepheshe, ubuchwepheshe bokukhiqiza kanye nezinga lenqubo yesikhumba sokwenziwa kwezinto ezingavuthiwe nakho kwenziwe ngcono kakhulu eminyakeni yamuva.Kodwa njengabathengi abajwayelekile, abantu abaningi abawazi umehluko phakathi kwezinto ze-PVC ne-PU
1. I-PU polyurethane coating emthwalweni ihlukaniswe yaba izinhlobo ezimbili: i-PU white glue coating kanye ne-PU isiliva glue coating.Ukusebenza okuyisisekelo kweglue emhlophe ye-PU kanye ne-silver glue coating kufana nalokho kwe-PA coating, kodwa iglue emhlophe ye-PU neglue esiliva izwakala ngokugcwele, indwangu iyanwebeka kakhulu, futhi ukushesha kungcono, kanye neglue yesiliva ye-PU. ukugqoka kungamelana nokucindezela kwamanzi aphezulu, futhi i-PU yokugqoka inomswakama wokungena, ukungena komoya, ukumelana nokugqoka, njll., kodwa izindleko ziphezulu futhi ukumelana nesimo sezulu kubi.

2. Uma kuqhathaniswa nokugqoka kwe-PU, indwangu engezansi ye-PVC yokugqoka incane futhi ishibhile, kodwa ifilimu ye-PVC yokugqoka ayiyona nje enobuthi, kodwa futhi kulula ukuguga.Okubaluleke nakakhulu, umuzwa we-PVC coating awumuhle njengalowo we-PU coating.Ungqimba luhle, futhi indwangu isenzima ngokuqhathaniswa.Uma ishiswa ngomlilo, ukunambitheka kwezindwangu eziboshwe nge-PVC kukhulu kakhulu kunezindwangu eziboshwe nge-PU.

3. Ngaphezu komehluko ekuzizweleni nasekunambithekeni phakathi kwe-PU kanye ne-PVC eboshwe izindwangu emthwalweni, kunelinye iphuzu lokuthi ukugqoka kwe-PU ngokuvamile kuyisikhumba, kuyilapho i-PVC iyingcina.

4. Inqubo yokukhiqiza ye-PU yesikhumba iyinkimbinkimbi kakhulu kunesikhumba se-PVC.Njengoba isisekelo sendwangu ye-PU siyinto ye-PU ye-canvas enamandla aqinile, ngaphezu kokumbozwa phezulu kwendwangu yesisekelo, indwangu yesisekelo nayo ingafakwa phakathi.Ukuba khona kwendwangu yesisekelo engabonakali ngaphandle.

5. Izinto ezibonakalayo zesikhumba se-PU zingcono kunezesikhumba se-PVC, ezinokumelana ne-tortuous, ukuthamba okuhle, amandla aqinile aphezulu, nokungena komoya (ngaphandle kwe-PVC).Iphethini yesikhumba se-PVC yenziwe ngokucindezela okushisayo nge-roller yephethini yensimbi.Iphethini yesikhumba se-PU ukusebenzisa uhlobo lwephepha lephethini ukushisa bese ucindezela ingaphezulu lesikhumba esiqedwe kancane kuqala, ulinde ukuthi liphole, bese uhlukanisa isikhumba sephepha ukuze siphathwe ngaphezulu.Intengo yesikhumba se-PU ingaphezu kokuphindwe kabili kwesikhumba se-PVC, futhi intengo yesikhumba se-PU enezidingo ezithile ezikhethekile iphakeme izikhathi ezingu-2-3 kunaleyo yesikhumba se-PVC.Ngokuvamile, iphepha lephethini elidingekayo lesikhumba se-PU lingasetshenziswa kuphela izikhathi ezingu-4-5 futhi lizolahlwa.Impilo yesevisi ye-roller yephethini yinde, ngakho-ke izindleko zesikhumba se-PU ziphakeme kunezesikhumba se-PVC.

Ngale ndlela, inqobo nje uma siqonda izici phakathi kwalokhu okubili, kulula kakhulu kubathengi abangewona ochwepheshe ukuthi babone ukuthi imithwalo iyi-PU noma i-PVC.Idinga kuphela ukwehlukanisa kulawa maphuzu amathathu alandelayo: okokuqala, umuzwa, i-Pu ithambile futhi iyanwebeka, kuyilapho i-pvc ilukhuni futhi izwa kabi lapho uyithinta.Okwesibili, bheka indwangu yesisekelo, isisekelo sendwangu ye-pu sikhulu futhi isendlalelo sepulasitiki sincane, futhi i-pvc incane.Okwesithathu kuyavutha, ukunambitheka kwe-pu kufanele kube lula ngemva kokushiswa.

Ngokusekelwe kulokhu okungenhla, singase futhi sifinyelele isiphetho: uma kuqhathaniswa, ukusebenza kwesikhumba se-PU kungcono kunokwesikhumba se-PVC, futhi ikhwalithi yemithwalo ye-PU ingcono kuneyomthwalo we-PVC!