Izixhobo zePolyether zikhona ukusetshenziswa ukuba amaphu aRigid PU angakho amahle kunye nokukhangelwa okuthile. Izixhobo ezinayo zikhona ngokugcinwa ukusetshenziswa kwesikhephe esisetyenziselayo esifanelekayo ngeemfana engezantsi. Bonisa jekiwe kokuba lezi zixhobo zePolyether zisetshenziswa ukukhangelwa kakhulu kwePU foam efutshane. Siyaziqashelwe amaxesha akwamaphu aPU efutshane aktiridi abasebenzela ukusuka kwezesintsha kunye nokungena technology ezimbewu zezibalo sithetha phambi komhla wokuqala.
Yintoni Amagama Angaphambili?
Izililo zepolyether zifuna njengezintsha ezinceda ukuthi iphooji yase PU yikhona ngokukhawuleza. Zihlala ngenye yezinto ezincane ezizama ukusebenzela phezulu ukubonisa ukuthi iphooji libuzekile kwaye lingalula ngazo. Izililo zakho zingakho zindwendwe ukuthi iphooji lePU lishona, okungabangako amagaba amanye amahhadi, nezinto eziphakamisayo kunye nokugcina.
Yini Inqubo Yezililo ZePolyether KwiPhooji Lase PU?
Ukuba zidibene kwisekhema sokulandelwa kwephooji lase PU, izililo zePolyether ziphumelela iphooji. Ukuthi iphooji lusuke luhlaleke kwaye luhlobene phakathi kwezinto ezidingekayo. Iphooji lePU elikhona nokuphumaphumelela labizwa ngokushesha ngezililo zePolyether.
Yini Okudingeka Njalo Ezililo ZePolyether?
Izililo zePolyether zingakho zindwendwe lokuncedisi ukuthi uhlola iphooji lase PU. Zingena abafundisi bazame ukufaka iphooji elikhona kwaye elingalula kodwa elingasetyenziswa futhi. Ukuthi iphooji lePU elikhona ngezililo zePolyether sibizwa ngokushesha ukuthi siyazi ukusetshenziswa kwindawo ezininzi ezivikeleyo, ezikhoyo kumazwe kunye nokuthi ezithile.
Ngubani i-Polyether Polyols Ziphumelela Izinyembezi ze-Rigid PU Foams Zokugqibela?
Kuvumelana ipolimerikhi methylene diphenyl diisocyanate kusebenzisa nokuthi kuyahlala ekunye kwezinyawo, oku kusenzeka ngokwesigaba sokuqaleni sokuba zizama ukuthi iziphumsele izinyembezi ezithile. Ngokuhlukaniswa lamanje amaninzi, amaphathisayithi azokulandela ukukhathalelwa kumazinyawo nokuthi amasiko akhuphelele. Ukuthi lokhu yikhona ukungena ngenxa yokuba i-rigid PU foam ifakwe ngamaphathisayithi ephakeme polyether, ingene ukuthi ikhona kwindawo yokulandelana emangweni wenyanga, kunye nokuba kuhlanganiswa ngokuphi le-nyaka, kunye nokuba kuhlelo lokho kwiimbali ethile.
Ngubani i-Polyether Polyols Zingabhedelela Ukudibanisa Kwe-Rigid PU Foam
Araga rigid PU foam ukuba aluhlaza kunye nokuthi aluhlazekayo ngokuba ayikho polyether polyols. Lamanje amaphathisayithi omncane obhekelise ukuthi umdlalo wokufundiswa wenza ngokubanzi kanye nokuthi uhlaziyekileyo. Into engenayo endaweni yokulandela ukuba rigid PPU foam ifanelekileyo, kunye nokuba uzame ukuthi uzame ukuthi uzame, uzame ngokuba ukuba hard PPU foam ifundiswa ngamaphathisayithi ephakeme polyether.
Ngokuqondile, ipholimeri mdi izinto eziqondisiweyo zicacileyo kuhlanganisa ukulingana ngephrofilo lomfo yasePU elibhedlela nokuncedululo olukhefu. Ngokusebenzisa amahleli amasodwa, izifirma zizoshintsha iphrofilo elibhedlela, elikhulu kunye nokuphumelela. Ukusetshenziswa kwepoliethe polifolu kwenzelela iphrofilo lePU elibhedlela ngokwesiphiyingi, umbala womphumela ungaphakathi kakhulu, okungabangako kwiindlela eziningi.
