Ngowuphi umahluko phakathi kwesikhumba sePU kunye nePVC?

Ngophuhliso lwenzululwazi kunye nobuchwepheshe, itekhnoloji yokuvelisa kunye nenqanaba lenkqubo yesikhumba sokwenziwa ekrwada nazo ziphuculwe kakhulu kwiminyaka yakutshanje.Izinto zesikhumba zokwenziwa zisetyenziswa ngokubanzi nangakumbi kwimveliso yeebhegi, kwaye iingxowa zePVC kunye nePU kwisikhumba sokwenziwa zithandwa ngabathengi abaninzi!Kodwa njengabathengi abaqhelekileyo, abantu abaninzi abawazi umahluko phakathi kwePVC kunye nePU,

1. I-PU polyurethane yokugqoka engxoweni ihlulwe ibe yi-PU emhlophe yeglue yokugqoka kunye ne-PU yesilivere yokugubungela.Iimpawu ezisisiseko ze-PU iglu emhlophe kunye nesilivere yokugquma iglu ziyafana nezo ze-PA yokugquma, kodwa iglu emhlophe ye-PU kunye neglu yesilivere yokugquma inezandla ezizeleyo, ilaphu elilastiki ngakumbi kunye nokukhawuleza okungcono, kunye ne-PU yeglue yeglue yokugquma inokumelana namanzi aphezulu. uxinzelelo, kwaye i-PU yokugquma inokungena kwamanzi, ukungena komoya, ukumelana nokunxiba, njl., kodwa ixabiso liphezulu kwaye ukuxhathisa kwemozulu kubi.

2. Xa kuthelekiswa nokwaleka kwePU, ilaphu elisezantsi lePVC lincinci kwaye lincinci.Nangona kunjalo, ifilimu ye-PVC yokugqoka ayinayo ityhefu kuphela, kodwa ilula ukuguga.Okubaluleke ngakumbi, ukubamba kwePVC yokwambathisa akulunganga njengaleyo yokwaleka kwePU, kwaye ilaphu nalo linzima.Ukuba usebenzisa umlilo, incasa yelaphu lokugquma lePVC inkulu kakhulu kunelaphu lokwaleka le-PU.

3. Ukongeza kumahluko phakathi kwe-PU kunye ne-PVC iingubo ezigqunyiweyo kwiingxowa ezandleni zokuziva kunye nencasa, enye ingongoma kukuba i-PU yokwaleka ngokubanzi yisikhumba, ngelixa i-PVC i-glue.

4. Inkqubo yokwenziwa kwe-PU yesikhumba inzima ngakumbi kune-PVC yesikhumba.Njengoko ilaphu lesiseko se-PU sisilaphu se-PU esinamandla okuqina, sinokugqunywa phezulu kwelaphu lesiseko kwaye sifakwe phakathi, sisenza ukuba kungenzeki ukubona ubukho belaphu lesiseko.

5. Iimpawu ezibonakalayo ze-PU zesikhumba zingcono kunezo zesikhumba ze-PVC, ezinokumelana nokuguquguquka, ukuthamba, amandla okuqina kunye nokunyanzeliswa komoya (i-PVC ayinayo).Ipateni yesikhumba ye-PVC ishushu icinezelwe yi-roller yepateni yentsimbi.Ipateni ye-PU yesikhumba ishushu icinezelwe kumphezulu wesikhumba esigqityiweyo kunye nohlobo lwephepha lepateni.Emva kokupholisa, isikhumba sephepha sihlukaniswe unyango olungaphezulu.Ixabiso lesikhumba se-PU lingaphezulu kokuphindwe kabini kwesikhumba se-PVC, kwaye ixabiso le-PU lesikhumba kunye neemfuno ezikhethekileyo ngamaxesha angama-2-3 aphezulu kunelo lesikhumba se-PVC.Ngokuqhelekileyo, iphepha eliqingqiweyo elifunekayo kwi-PU yesikhumba ingasetyenziselwa kuphela amaxesha angama-4-5, kwaye emva koko iya kuchithwa.Umjikelo wokusetyenziswa kwepateni yerola yinde, ngoko ke ixabiso lesikhumba sePU liphezulu kunelo lesikhumba sePVC.

Ngale ndlela, nje ukuba siqonda iimpawu phakathi kwezi zimbini, kuya kuba lula kakhulu kubathengi abangezongcali ukuchonga ukuba iingxowa ziyi-PU okanye i-PVC, okoko nje sizahlula kwezi ngongoma zintathu zilandelayo: okokuqala, ukuvakalelwa. ithambile kwaye ilastiki, ngelixa imvakalelo imbi xa iPVC inzima.Okwesibini, jonga ilaphu elisezantsi.Ilaphu elisezantsi le-PU lijiyile kwaye umaleko weplastiki ubhityile, ngelixa iPVC ibhityile.Eyesithathu iyatsha.Incasa yepu iya kuba lula emva kokutshisa.

Ngokusekwe koku ngasentla, sinokufikelela kwisigqibo: xa sithetha, ukusebenza kwesikhumba sePU kungcono kunokwesikhumba sePVC, kwaye umgangatho weengxowa zePU ungcono kuneengxowa zePVC!