Phapang lipakeng tsa polyurethane MDI le litsamaiso tsa TDI bakeng sa mochini oa elastomer
Selelekela:
Mechini ea polyurethane elastomer e bapala karolo ea bohlokoa indastering ea sejoale-joale.Leha ho le joalo, ha ho tluoa tabeng ea ho khetha tsamaiso ea polyurethane, ho na le likhetho tse peli tse ka sehloohong: tsamaiso ea MDI (diphenylmethane diisocyanate) le tsamaiso ea TDI (terephthalate).Sengoliloeng sena se tla hlahloba phapang lipakeng tsa litsamaiso tsena tse peli ho thusa 'mali ho etsa khetho e nang le tsebo bakeng sa ts'ebeliso e itseng.
I. Mechine ea Elastomer ea Polyurethane MDI Systems
Tlhaloso le Sebopeho: Sisteme ea MDI ke polyurethane elastomer e entsoeng ka diphenylmethane diisocyanate e le thepa e tala ea mantlha, hangata e nang le lisebelisoa tse thusang joalo ka polyether polyol le polyester polyol.
Likarolo le Melemo:
Matla a phahameng le khanyetso ea abrasion: Li-elastomer tsa sistimi ea MDI li na le thepa e ntle ea 'mele ebile li boloka botsitso maemong a khatello e phahameng ea maikutlo.
Ho hanyetsa botsofali ho babatsehang: li-elastomer tse nang le lisebelisoa tsa MDI li na le khanyetso e ntle ea oxidation le mahlaseli a UV le bophelo bo bolelele ba tšebeletso.
Khanyetso e ntle ea oli le li-solvents: Li-elastomer tsa MDI li lula li tsitsitse ha li pepesetsoa lik'hemik'hale tse kang oli le li-solvents.
Libaka tsa kopo: Li-elastomers tsa sistimi ea MDI li sebelisoa haholo ho etsa likoloi, lisebelisoa tsa lipapali le lihlahisoa tsa indasteri.
II.Mechini ea elastomer ea polyurethane TDI system
Tlhaloso le sebopeho: TDI system ke polyurethane elastomer e entsoeng ka terephthalate e le thepa e tala ea mantlha, hangata e na le lisebelisoa tse thusang tse kang polyether polyol le polyester polyol.
Likarolo le Melemo:
Elasticity e ntle le bonolo: Li-elastomers tsa TDI li na le elasticity e phahameng le bonolo 'me li loketse lihlahisoa tse hlokang boikutlo bo phahameng ba letsoho.
Ts'ebetso e ntle ea ho kobeha ha mocheso o tlase: Li-elastomer tsa sistimi ea TDI li ntse li na le ts'ebetso e ntle haholo ea ho kobeha maemong a mocheso o tlase, 'me ha ho bonolo ho holofala kapa ho robeha.
E loketse libopeho tse rarahaneng: Li-elastomer tsa TDI li ipabola ho etsa libopeho tse rarahaneng ho fihlela litlhoko tse fapaneng tsa moralo.
Likopo: Li-elastomer tsa TDI li sebelisoa haholo ka thepa ea ka tlung le materaseng, ho etsa lieta le thepa ea ho paka.
III.Papiso ea litsamaiso tsa MDI le TDI
Lefapheng la mechine ea polyurethane elastomer, litsamaiso tsa MDI le TDI li na le litšobotsi le melemo e fapaneng.Litafole tse latelang li tla tsoelapele ho bapisa liphapang tsa tsona mabapi le sebopeho sa lik'hemik'hale, thepa ea 'mele, tšireletso le polokeho ea tikoloho, litšenyehelo tsa tlhahiso le libaka tsa ts'ebeliso:
| papiso ntho | Sistimi ea MDI ea polyurethane | Sistimi ea polyurethane TDI |
| sebopeho sa lik'hemik'hale | Ho sebelisa diphenylmethane diisocyanate joalo ka thepa e tala ea mantlha | Ho sebelisa terephthalate joalo ka ntho e ka sehloohong e tala |
| Litšobotsi tsa karabelo | Boemo bo phahameng ba ho kopanya | e fokolang haholo |
| thepa ya mmele | - Matla a phahameng le ho hanyetsa ho apara | - elasticity e ntle le bonolo |
| - Excellent botsofali khanyetso | - Ts'ebetso e ntle ea ho khumama ka mocheso o tlase | |
| - Ho hanyetsa oli e ntle le solvent | - E loketse lihlahisoa tse nang le libopeho tse rarahaneng | |
| Tšireletso le polokeho ea tikoloho | litaba tse tlase tsa isocyanate | lintho tse ngata tsa isocyanate |
| Litsenyehelo tsa tlhahiso | theko e phahameng | theko e tlase |
| Sebaka sa kopo | - Moetsi oa likoloi | - thepa ea ka tlung le materase |
| - Lisebelisoa tsa Lipapali | - Ho etsa lieta | |
| - Lihlahisoa tsa indasteri | - Thepa ea ho paka |
Joalokaha ho ka bonoa tafoleng e ka holimo, li-elastomers tsa polyurethane MDI system li na le matla a phahameng, ho hanyetsa botsofali le ho hanyetsa oli, 'me li loketse ho sebelisoa ho etsa likoloi, thepa ea lipapali le lihlahisoa tsa indasteri.Ka lehlakoreng le leng, polyurethane TDI system elastomers e na le elasticity e ntle, ho tenyetseha le thepa ea ho kobeha ha mocheso o tlase, 'me e loketse ho sebelisoa libakeng tse kang thepa ea ka tlung le materase, tlhahiso ea lieta le thepa ea ho paka.
Hape ke habohlokoa ho hlokomela hore tsamaiso ea MDI e theko e boima haholo ho e hlahisa, empa e fana ka tšireletso le polokeho ea tikoloho e betere.Ka lehlakoreng le leng, sistimi ea TDI e na le litšenyehelo tse tlase tsa tlhahiso empa e na le litaba tse phahameng tsa isocyanate 'me ha e na botsoalle hanyane ho feta sistimi ea MDI.Ka hona, ha ho khethoa sistimi ea polyurethane, bahlahisi ba lokela ho nahana ka ts'ebetso ea sehlahisoa, litlhoko tsa tikoloho le lithibelo tsa tekanyetso e le hore ba ntlafatse lenaneo le loketseng la tlhahiso ho fihlela litlhoko tsa lits'ebetso tse fapaneng.
IV.Dikgetho tsa Tshebediso le Dikgothaletso
Ho khetha sistimi e nepahetseng bakeng sa lits'ebetso tse fapaneng: Ho nahanoa ka litlhoko tsa sehlahisoa le litšoaneleho tsa sebaka sa ts'ebeliso, ho khetha li-elastomer tse nang le litsamaiso tsa MDI kapa TDI ho netefatsa ts'ebetso e ntle ka ho fetisisa le ho boloka litšenyehelo.
Ho etsa liqeto mabapi le ts'ebetso ea sehlahisoa le tekanyetso: ha ho khethoa tsamaiso, ts'ebetso ea sehlahisoa, litlhoko tsa tikoloho le lithibelo tsa tekanyetso li nkoa e le ho hlahisa tharollo e loketseng ka ho fetisisa ea tlhahiso.
Qetello:
Polyurethane MDI le TDI system elastomers e 'ngoe le e' ngoe e na le melemo ea eona 'me e loketse litlhoko tsa sehlahisoa libakeng tse fapaneng.Ho utloisisa liphapang ho tla thusa bahlahisi ho etsa liqeto tse nang le tsebo ho netefatsa hore lihlahisoa tsa bona li sebetsa hantle lits'ebetsong tse itseng.
Nako ea poso: Aug-01-2023