Yintoni umahluko phakathi kwesikhumba se-PU kunye ne-PVC?

Yintoni umahluko phakathi kwesikhumba se-PU kunye ne-PVC?
Ngophuhliso lwesayensi kunye nethekhinoloji, itekhnoloji yokuvelisa kunye nenqanaba lenkqubo yesikhumba sokwenziwa kwemathiriyeli ekrwada nazo ziphuculwe kakhulu kwiminyaka yakutshanje.Kodwa njengabathengi abaqhelekileyo, abantu abaninzi abawazi umahluko phakathi kwePVC kunye nePU
1. I-PU polyurethane yokugqoka kwimithwalo ihlulwe ibe ziindidi ezimbini: i-PU i-glue emhlophe yeglue kunye ne-PU yesilivere yeglue.Ukusebenza okusisiseko kwe-PU iglu emhlophe kunye nesilivere yokugquma iglu iyafana naleyo ye-PA yokugquma, kodwa iglu emhlophe ye-PU kunye neglue yeglue yesilivere inemvakalelo egcweleyo, ilaphu liyalastiki ngakumbi, kwaye ukukhawuleza kungcono, kunye neglu yesilivere yePU. I-coating inokumelana noxinzelelo oluphezulu lwamanzi, kwaye i-PU i-coating ine-permeability yomswakama, i-ventilation, ukumelana nokunxiba, njl., kodwa ixabiso liphezulu kwaye ukuxhathisa kwemozulu kubi.

2. Xa kuthelekiswa ne-PU yokugqoka, ilaphu elisezantsi le-PVC lincinci kwaye lincinci, kodwa ifilimu ye-PVC yokugqoka ayinayo ityhefu kuphela, kodwa ilula ukuguga.Okubaluleke ngakumbi, imvakalelo yokugquma kwePVC ayilunganga njengaleyo yokwaleka kwePU.Umaleko ulungile, kwaye ilaphu lisenzima ngokwentelekiso.Ukuba itshiswe ngomlilo, incasa yeelaphu ezigqunywe ngePVC zikhulu kakhulu kuneengubo ezigqunywe nge-PU.

3. Ukongeza kumahluko wokuziva kunye nokungcamla phakathi kwe-PU kunye ne-PVC egqunywe ngamalaphu emithwalo, kukho enye ingongoma yokuba i-PU yokugquma idla ngothwathwa, ngelixa i-PVC i-glue.

4. Inkqubo yokwenziwa kwe-PU yesikhumba inzima ngakumbi kune-PVC yesikhumba.Kuba isiseko selaphu le-PU sisilaphu se-PU se-canvas esinamandla anamandla okuqina, ukongeza ekugqumeni phezulu kwelaphu lesiseko, ilaphu lesiseko linokubandakanywa embindini.Ubukho belaphu lesiseko elingenakubonwa ngaphandle.

5. Iimpawu ezibonakalayo ze-PU zesikhumba zingcono kunezo zesikhumba ze-PVC, ezinokumelana ne-tortuous, ukuthamba okulungileyo, amandla aphezulu, kunye nokungena komoya (ngaphandle kwe-PVC).Ipateni yesikhumba ye-PVC yenziwe ngokucinezela okushushu nge-roller yepateni yentsimbi.Ipateni ye-PU yesikhumba kukusebenzisa uhlobo lwephepha lepateni ukutshisa kwaye ucinezele umphezulu wesikhumba esigqityiweyo kuqala, ulinde ukuba siphole, kwaye emva koko uhlukanise ulusu lwephepha lonyango lomphezulu.Ixabiso lesikhumba se-PU lingaphezulu kokuphindwe kabini kwesikhumba se-PVC, kwaye ixabiso le-PU lesikhumba kunye neemfuno ezikhethekileyo ngamaxesha angama-2-3 aphezulu kunalawo e-PVC.Ngokuqhelekileyo, iphepha lepateni elifunekayo kwi-PU yesikhumba ingasetyenziselwa kuphela amaxesha angama-4-5 kwaye iya kuchithwa.Ubomi benkonzo ye-pattern roller bude, ngoko ke iindleko ze-PU zesikhumba ziphezulu kunezo zesikhumba sePVC.

Ngale ndlela, ukuba nje siqonda iimpawu phakathi kwezi zibini, kulula kakhulu kubathengi abangengabo abachwephesha ukuchonga ukuba imithwalo yi-PU okanye i-PVC.Kufuneka kuphela ukwahlula kula manqaku mathathu alandelayo: okokuqala, ukuziva, i-Pu ithambile kwaye i-elastic, ngelixa i-pvc inzima kwaye ivakalelwa kakubi xa ibamba.Okwesibini, jonga isiseko sesiseko, isiseko se-pu sityebile kwaye iplastiki yeplastiki iyancipha, kwaye i-pvc incinci.Eyesithathu iyatshisa, i-taste of pu kufuneka ibe lula emva kokutshisa.

Ngokusekwe koku kungasentla, sinokufikelela kwisigqibo: xa sithetha, ukusebenza kwesikhumba sePU kungcono kunokwesikhumba sePVC, kwaye umgangatho wemithwalo yePU ungcono kunomthwalo wePVC!