Umahluko phakathi kwePolyurethane esekelwe kuManzi kunye ne-Oil based Polyurethane
I-polyurethane yamanzi esekelwe emanzini yinto ehambelana nokusingqongileyo i-polymer elastic elastic waterproof ehambelana nokusingqongileyo kunye nokunamathela okulungileyo kunye nokunganyanzeki. Inonamathela kakuhle kwii-substrates ezisekelwe kwi-samente ezifana nekhonkrithi kunye nelitye kunye neemveliso zetsimbi. Imveliso ineempawu zeekhemikhali ezizinzileyo kwaye inokumelana nokuchayeka ixesha elide ekukhanyeni kwelanga. Ineempawu zokwaluka okulungileyo kunye nobude obukhulu.
Iimpawu zokuSebenza kweMveliso
1. Ukubonakala: Imveliso kufuneka ikhululeke kwiingqungquthela emva kokuvuselela kunye nesimo esifanayo.
2. Inamandla aphezulu okuqina, ukuphakama okuphezulu, ukuqina okuhle, ukusebenza kakuhle kumaqondo okushisa aphezulu kunye naphantsi, kunye nokulungelelaniswa kakuhle kwi-contraction, cracking, kunye ne-deformation ye-substrate.
3. Ukubambelela kwayo kulungile, kwaye akukho unyango lwe-primer olufunekayo kwii-substrates ezahlukeneyo ezihlangabezana neemfuno.
4. I-coating yomile kwaye yenze ifilimu emva koko ayinamanzi, i-corrosion-resistant, i-mold-resistant, kunye ne-resistant-resistant.
5. Ukusebenza kwayo kokusingqongileyo kulungile, njengoko ingenayo i-benzene okanye i-coal tar components, kwaye akukho solvent eyongezelelweyo efunekayo ngexesha lokwakha.
6. Yinto enye, imveliso ebanda ekulula ukuyisebenzisa kunye nokuyisebenzisa.
Umda wokusetyenziswa kwemveliso
1. Iwafanele amagumbi angaphantsi komhlaba, iindawo zokupaka ezingaphantsi komhlaba, i-open-cut subway kunye neetonela
2. Amakhitshi, amagumbi okuhlambela, amacwecwe omgangatho, iibhalkoni, uphahla olungavezwanga.
3. Ukukhutshwa kwamanzi okuthe tye kunye nokungena kwamanzi kwiimbombo, amajoyina kunye nezinye iinkcukacha ezintle, kunye nokutywinwa kweendawo zokungena kwamanzi.
4. Ukuthintela amanzi kumadama okuqubha, imithombo eyenziweyo, iitanki zamanzi, nemijelo yokunkcenkceshela.
5. Ukuvalwa kwamanzi kwiindawo zokupaka kunye nophahla lwesikwere.
I-oyile esekwe kwi-polyurethane yokugquma ingangenwa ngamanzi yi-molekyuli ephezulu engangenwa ngamanzi eyoma kwaye iqine ngaphezulu. Yenziwe nge-isocyanates kunye ne-polyols njengezona zixhobo eziphambili, kunye nee-agent ezincedisayo ezahlukeneyo ezifana nokudibanisa i-latent hardeners kunye ne-plasticizers, kwaye iveliswa yinkqubo ekhethekileyo yokushisa okuphezulu kunye nokuphendula kwe-polymerization. Xa isetyenzisiwe, isetyenziswe kwi-substrate engangeni manzi, kwaye ifilimu eqinile, eguquguqukayo kunye nengenamthungo ye-polyurethane engenamanzi yenziwa kwi-substrate surface ngokusabela kweekhemikhali phakathi kweqela le-NCO ekupheleni kwe-polyurethane prepolymer kunye nomswakama emoyeni.
Iimpawu zokuSebenza kweMveliso
1. Ukubonakala: Imveliso ngumzimba ofanayo we-viscous ngaphandle kwe-gel kunye namaqhuma.
2. I-single-component, ilungele ukusetyenziswa kwisiza, ukwakhiwa okubandayo, kulula ukuyisebenzisa, kunye nemfuno yomswakama we-substrate ayingqongqo.
3. Ukubambelela okuqinileyo: Ukubambelela kakuhle kwikhonkrithi, udaka, i-ceramics, i-plaster, imithi, njl. izinto zokwakha, ukulungelelaniswa kakuhle kwi-shrinkage, ukuqhekeka kunye nokuguqulwa kwe-substrate.
4. Ifilimu ngaphandle kwe-seams: Ukubambelela kakuhle, akukho mfuneko yokusebenzisa i-primer kwii-substrates ezahlukeneyo ezihlangabezana neemfuno.
5. Amandla aphakamileyo efilimu, isantya esikhulu sokwandisa, ukuqina okulungileyo, ukulungelelaniswa kakuhle kwi-shrinkage kunye nokuguqulwa kwe-substrate.
6. Ukumelana nemichiza, ukumelana nobushushu obuphantsi, ukumelana nokuguga, ukuxhathisa ngundo, ukusebenza kakuhle kwamanzi. Umda wokusetyenziswa kwemveliso
I-oyile esekelwe kwi-polyurethane yokugquma kwamanzi ingasetyenziselwa ukwakhiwa kokungangeni kwamanzi kwezakhiwo ezitsha nezidala, uphahla, amagumbi angaphantsi, amagumbi okuhlambela, amachibi okubhukuda, iiprojekthi zokukhusela uluntu, njl.
Umahluko phakathi kwe-oyile esekwe kwi-polyurethane kunye ne-polyurethane esekwe emanzini:
I-polyurethane esekwe kwi-oyile inomxholo oqinileyo ophakamileyo kune-polyurethane esekwe emanzini, kodwa yenziwe nge-isocyanate, i-polyether, kunye neearhente ezahlukeneyo ezincedisayo ezifana ne-ejenti edibeneyo yokunyanga i-latent kunye ne-plasticizers, elungiselelwe ngeenkqubo ezikhethekileyo kubushushu obuphezulu, njengokususwa kwamanzi kunye i-polymerization reaction. Inomlinganiselo omkhulu wongcoliseko, xa kuthelekiswa ne-polyurethane yamanzi, eyimveliso eluhlaza kunye nokusingqongileyo ngaphandle kokungcola. Kufanelekile ukusetyenziswa kwangaphakathi, njengamakhitshi kunye neendawo zokuhlambela.
Ixesha lokuposa: May-29-2024