DiMethylthiotoluenediaMine (DMTDA) cas 106264-79-3
DimethylthioToluene Diamie / DMTDA, nomoro ea CAS. 106264-79-3, ke pheko ea diamine bakeng sa litsamaiso tsa TDI le MDI ka bobeli. Ho ba mokelikeli oa viscous mochesong oa kamore ho fella ka melemo e mengata ea ts'ebetso, ke hore, ho fetisoa habonolo, ho itokiselitse ho sebelisoa ntle le ho qhibiliha lintho tse tiileng joalo ka MOCA. DMTDA ke pheko e nepahetseng e sebelisoang ho etsa li-elastomer tsa polyurethane/polyurea tse tšoarellang le tse tenyetsehang.
DMTDA e ka ba ntho e phekolang le ketane ea li-pre-polymer tsa diisocyanate, haholo bakeng sa sistimi ea polyurea e fanang ka thepa e ntle ea mochini le e matla. DMTDA ke pheko ea bokahohle ho kopanngoa le li-diamine tse ling tsa metsi, mohlala, DETDA, ho fapana le litekanyetso tsa phekolo le thepa ea mochine ho finyella litlhoko tse fapaneng. Ka hona, ho na le ts'ebeliso e pharaletseng ea DMTDA holim'a mabili a polyurethane, lithaere, li-caster, li-roller, liaparo tsa elastomeric joalo-joalo. U ka fumana lihlahisoa tse feliloeng tsa DMTDA hohle, ho kenyeletsoa kaho, merafo, likoloi, lisebelisoa tsa elektroniki, masela le libaka tsa khatiso.
Ho fapana le MOCA, 4,4'-Methylenebis(2-chloroaniline), DMTDA ha e belaelloe hore ke kankere. E na le tikoloho, ha e chefo ebile e bolokehile hore basebetsi ba ka sebetsana le eona nakong ea ts'ebetso. Melemo ea ho ba mokelikeli, DMTDA e ke ke ea baka lerole le chefo, mosi kapa mouoane ha e ntse e sebetsa. Ka hona, basebetsi ba ke ke ba pepesehela kotsi ha ba sebetsana le DMTDA. Mehleng ea pele, bahlahisi ba EU polyurethane ba sebelisa MOCA e le eona pheko e ka sehloohong ea litsamaiso tsa polyurethane tse thehiloeng ho TDI ka lebaka la theko ea eona e tlase, ts'ebetso e ntle haholo ea matla a ho tsitlella, ho tšoarella, ho tiea le ho hanyetsa mahlaba. E le ho sireletsa basebetsi le tikoloho, linaha tse ngata li hanela tšebeliso ea MOCA, kahoo, e qobella bahlahisi ba polyurethane ho fumana sebaka sa MOCA, DMTDA, eo hape e bitsoang MOCA ea metsi. DMTDA e felisa boholo ba likotsi tsa bophelo bo botle tse amanang le ho sebetsana le MOCA le ho fana ka thepa e babatsehang ea 'mele ha e bapisoa le MOCA-based polyurethanes/polyureas elastomers.
Ho na le monyetla o mong oa bohlokoa oa DMTDA ha o bapisoa le MOCA. Kaha DMTDA e ka sebopeho sa mokelikeli, e lumella ts'ebetso ka mocheso o tlase ho feta MOCA. Ntle le ts'ebetso ea ho qhibiliha e tlamehang ho MOCA, o ka boloka litšenyehelo tse ngata tsa matla nakong ea tlhahiso. Monyetla oa ho tiisa ha o hlahe ka lijaneng tse kopanyang kapa mechine e kopanyang. Ho feta moo, e ka sebetsanoa ka mocheso o tlase ho feta MOCA bakeng sa boemo ba eona ba mokelikeli. Boima bo lekanang ba DMTDA ke 107 ha bo bapisoa le MOCA ke 133.5. Sena se bolela phokotso ea 20% ea boima ba prepolymer ho stoichiometr e tšoanang
DMTDA e sebelisoa e le PU e phekolang. E ka fokotsa ts'ebetso ea sehlopha sa "NH2", ka hona, ho lelefatsa bophelo ba pitsa ha u ntse u lahla.
DMTDA , ho ba mokelikeli mochesong oa kamore ho fella ka molemo o moholo oa ho sebetsa ha o bapisoa le MOCA, ho qhibiliha ha lintho tse tiileng ha ho hlokahale. Hape, sebopeho sa eona sa metsi se lumella ho sebetsana le prepolymer ka mocheso o tlase ho feta oa MOCA le ntle le ho tiisa nakong ea ho kopanya. DMTDA e na le boima bo lekanang le ba 107 ha bo bapisoa le 133.5 ea MOCA. Sena se bolela hore hoo e ka bang 20% ka tlase ho boima ba 'mele ho hlokahala bakeng sa prepolymer e fanoeng ho stoichiometry e tšoanang.
Ho bapisa Thepa ea 'Mele ea Prepolymer e Fokotsoeng le DMTDA & MOCA
Lintho tsa 'mele tsa prepolymer, mefuta ea ether le ester, ha li phekoloa ka moemeli oa phekolo ea DMTDA, li bapisoa le tse thehiloeng ho MOCA. Joalo ka sistimi ea pheko ea MOCA, thepa ea 'mele e na le kutloelo-bohloko ho ration (stoichiometry) ea pheko ho prepolymer. Tumellano ea pontšo ea phekolo ea DMTDA ho mefuta e fapaneng ea stoichiomity e tšoanang le ea MOCA. Low stoichiomety (80 ~ 90%) hangata e atisa ho eketsa khanyetso sete ea khatello, ha stoichiomety e phahameng (100-105%) e atisa ho eketsa matla a ho lla le bophelo bo tsitsitseng. Liphetho tse ntle bakeng sa ts'ebeliso e ngata li fumaneha hoo e ka bang 95% stoichiometry. Le hoja maemo a phekolo (mocheso le linako) a tšoana le a sebelisoang le MOCA, phekolo ea DMTDA e hloka tlhokomelo e haufi-ufi ho maemo a ka morao ho fumana thepa e ngata ea 'mele, haholo-holo bakeng sa lisebelisoa tsa khatello le thepa e matla.
DMTDA e sebelisoa haholo lits'ebetsong tsa ho roala meahong ea meralo, ea likoloi, ea likepe le ea liindasteri. DMTDA-based polyurethanes coating e na le ts'ebetso e phahameng, joalo ka ho tiea le elasticity, matla a phahameng, ho se kenelle ha metsi, ho hanyetsa boemo ba leholimo, ho hanyetsa abrasion, khanyetso le ho senya. Li-polyurethanes tse thehiloeng ho DMTDA li ka sebelisoa ka mekhoa e fapaneng ea ho roala ho li-substrates, ke hore, tšepe, lehong, konkreite, masonry le bokaholimo ba polasetiki.
DMTDA e ka boela ea sebelisoa e le epoxy resin foam agent/insulation material le PU elastomers, tse kang polyurethane le polyurea e sebelisetsoang ntho e 'ngoe le e 'ngoe ho tloha ho liaparo tse telele tse tšoarellang ho isa ho litiiso tse tenyetsehang tsa foam, esita le mabili le lithaere. Ntle le moo, DMTDA e ka sebelisoa ho likoloi, meaho, meepo, masela, lirolara tsa khatiso, mabili a teroli, likhomaretsi le liindasteri tsa elektroniki.
Ho paka: 25kg, 200kg / moropa oa tšepe. kapa IBC TANK.
Polokelo le lipalangoang: Qoba ho kopana le metsi. E-ba hōle le khanya ea letsatsi.
Shelf bophelo: 12 moths
| Ntho | Index |
| Ponahalo | Seedi se bonaletsang se mosehla ho isa ho sesehla |
| monko | E kang amine |
| Litaba tsa Diamine kaofela | 99%mets |
| Dimethylthiotoluenediamine | 95% mets |
| Monomethylthiotoluenediamine | 4%max |
| Trimethylthiotoluenediamine | 1%max |
| Litaba tsa TDA | 0.1% boholo |
| Mmala, sekala sa 'mala oa Gardner | 2-8 |
| Boleng ba amine (mgKOH / g) | 520-540 |
| Mongobo (%) | 0.1% boholo |
| 1. | |
| 2. | |
| 3. | |
| 4. | |
| 5. | |
| 6. | TDI 80/20 |
| 7. | TDI-Bases Polyisoyanurate (RC) |
| 8. | IS(1,5-Naphthalene Diisocyanate) CAS 3173-72-6 |
| 9. | RF(JQ-4) |
| 10. | RN |
| 11. | DETDA CAS 68479-98-1 |
| 12. | DMTDA CAS 106264-79-3 |
| 13. | MMEA CAS 19900-72-2 |
| 14. | KAJENO CAS 91-97-4 |
| 15. | TEOF CAS 122-51-0 |
| 16. | MOCA CAS 101-14-4 |
| 17. | PTSI CAS 4083-64-1 |
| 18. | joalo-joalo... |
