Kwiminyaka yakutshanje, kunye nesikhokelo semigaqo-nkqubo yokukhusela indalo kunye nokukhuthazwa kwabaninziukutyabekaabavelisi, amanziithweleIpeyinti iye yaqatshelwa ngakumbi yimarike, kwaye ukusebenza kwepeyinti yamanzi amacandelo amabini kuye kwafaniswa nepeyinti esekelwe kwioli kwiinkalo ezininzi, ezingenakuhlukaniswa nophuhliso kunye nokusetyenziswa kwepeyinti.emanzini PUiarhente yokunyanga.
IBogao's wsemvaPUiarhente yokunyangaBG-2655-80,fokanye ii-coatings zamanzi, ii-adhesives zamanzi, ii-inki eziphuma emanzini, njl.
Yiisetyenziswa njengee-arhente zokunyanga kumacandelo amabini afumaneka emanziniPUinkqubo.
Ineempawu zePaint film ukomisa ngokukhawuleza, iipropathi ezigqwesileyo zomzimba kunye neekhemikhali.
I-agent yokunyanga i-PU yamanzi iqulethe inani elikhulu lamaqela e-isocyanate (- i-NCO), enokuthi ifakwe kunye namaqela amaninzi asebenzayo afana ne-hydroxyl, i-amino kunye namaqela e-carboxyl. Indlela yokulawula ngokufanelekileyo ukusabela kwecala kunye nokulungiselela ipeyinti yamacandelo amabini enziwe ngamanzi kunye nokusebenza okugqwesileyo kufuna ukukhetha i-agent efanelekileyo yokunyanga emanzini, kunye nokulawula iingongoma eziphambili zoyilo loyilo kunye nokulungiswa kwefilimu ngokweenkcukacha.
Uphando lwesicelo se-agent ye-PU yokunyanga emanzini yaqala ekupheleni kwe-1980s. I-Bayer ibiphambili kuphando nophuhliso, kwaye ikwanegalelo ekukhuthazeni iarhente yokunyanga amanzi kunye nepeyinti ephuma emanzini. Yaqala emva kwexesha e-China, kodwa iphuhlise ngokukhawuleza, kwaye isetyenziswa ngokubanzi kwiingubo zemizi-mveliso, iingubo zomgangatho, iingubo zokhuni, ishishini leemoto, ishishini lempahla yengubo kunye nezinye iinkalo.
- Isicelo kwiingubo zamashishini
I-agent yokunyanga ye-PU yamanzi ihambelana ne-resin ye-hydroxyl ye-dispersion resin. Ngenxa yokuba i-hydroxyl dispersion inobunzima obuncinci bemolekyuli, ixabiso eliphezulu le-hydroxyl kwaye ayikho i-surfactant, inoxinaniso oluphezulu, ubunzima obuphezulu, iglosi elungileyo kunye nokuxhathisa okulungileyo emva kokuwela kunye nokunyanga. Inokuthi ifaniswe ngokupheleleyo neengubo ezisekelwe kwioli ekusebenzeni, kwaye inokusetyenziswa ngokubanzi kwi-industrial anti-corrosion kunye neengubo zokuhombisa.
- Isicelo kwi-coating yomgangatho
Amacandelo amabini e-PU yamanzii-coating isetyenziselwa umgangatho osekelwe emanzini, oneempawu zokukhuselwa kwendalo kunye nempilo. EmanziniPUi-coating ineempawu zokuguquguquka okuphezulu, ukumelana nokunxiba, ukuxhathisa kwemozulu, ukuxhathisa kwamanzi kunye nokuchasana kakuhle nokuqala.
- Isicelo kwi-Wood Coatings
Ipeyinti yomthi we-matte ekumgangatho ophezulu ephuma emanzini lukhokelo lweshishini lefenitshala. Ifilimu yepeyinti inika imvakalelo yokuthungwa kakuhle emva kokuphela, kwaye ithandwa kakhulu ngabantu. I-varnish yokugqoka idityaniswe kunye ne-agent edibeneyo ine-transparency ephantsi kunye nokuchasana kakubi phakathi. Umphumo we-matting unokufezekiswa nge-arhente yokunyanga ukusuka kwisakhiwo se-molecular. Uhlobo olufanayo lwepeyinti yamanzi, enesakhiwo esahlukileyo se-agent ephilisa i-matte, inokufumana iglosi esiyifunayo.
Ixesha lokuposa: Feb-17-2023