| Lub npe tshuaj lom neeg | 4.4'-Methylene-bis (2-methyl-6-ethylaniline) |
| Tus lej CAS | 19900-72-2 |
| Cov mis molecular | C19H26N2 |
| Qhov hnyav ntawm cov molecule | 282.4231 |
| Qhov Ceev | 1.039 g/cm3 |
| Qhov sib xyaw ua ke | 85°C |
| Kub taw tes | 443.1°C ntawm 760 mmHg |
| Qhov hnyav tshwj xeeb | 1.44 (khoom) ntawm 24 ℃ |
| Qhov taw tes kub hnyiab | 266°C |
| Qhov tsos | Hmoov dawb |
| Cov dej noo | Qis dua 0.3% |
| Tus nqi ntawm Amine | 390-408 KOH mg/g |
| Cov khoom siv uas tsis yaj tau los ntawm acetone | Tsis muaj dab tsi |
| Tag nrho cov tshuaj chlorine | Hauv qab 10 ppm |
| Kev dawb huv | 98.0% |
| Kev siv tseem ceeb | Tus neeg sawv cev kho polyurethane, tus neeg sawv cev kho rau epoxy resin, saw txuas ntxiv |
| Lub zog ua pa | 4.75E-08mmHg ntawm 25°C |
4,4′-Methylenebis(2-ethyl-6-methylaniline) / MMEA CAS No. 19900-72-2
4,4'-Methylenebis(2-ethyl-6-methylaniline) / MMEA, CAS tus lej 19900-72-2, yog siv los ua cov saw hlau txuas rau polyurethane elastomers thiab ua tus neeg sawv cev kho rau epoxy resin los txhim kho cov khoom siv kho tshuab thiab dynamic ntawm cov khoom. MED kuj tseem siv tau ua cov tshuaj ua rau polyimides thiab ua tus neeg nruab nrab rau cov organic synthesis.
Zoo rau kev casting polyurethane (CPU), thermoplastic polyurethane (TPU), RIM elastomers thiab tshuaj tsuag polyurea hauv thaj teb polyurethane. MED kuj tseem siv tau rau kev ua, prepreg thiab tshuaj tiv thaiv xeb hauv thaj teb epoxy resin. MED yog siv rau hauv kev tsim cov prepolymers, suav nrog polyether thiab polyester.
MED yog ib qho kev daws teeb meem zoo tshaj plaws rau cov khoom tiav uas xav tau xim sib dua thiab tiv thaiv kev laus. MED tuaj yeem siv nrog lwm cov tshuaj amine-hom curing agents (compound) kom ua tau raws li cov khoom zoo dua.
MED thiab MOCA yog ob qho tib si amine-hom curing agents. Txawm li cas los xij, MED yog tus phooj ywg ib puag ncig thiab tsawg dua-polluted piv rau MOCA. MED kuj tseem tuaj yeem hloov MBOEA thiab HQEE ntawm PU cov khoom, tsis hais CPU (casting polyurethane) lossis TPU (thermoplastic polyurethane). Ib yam li MOCA, MED-hom elastomers feature nrog kev tiv taus cua sov zoo heev uas xav tau kev ua haujlwm tshaj 120 ℃.
MED/MMEA yog ib qho tshuaj uas ua rau cov saw hlau diamine tsw qab thiab ua rau cov khoom siv kho. Vim muaj cov cai nruj heev txog kev siv MOCA, MED uas tsis muaj kuab paug yog lwm qhov kev xaiv zoo tshaj plaws rau ntau yam kev siv. MED-base polyurethanes muaj ntau yam thiab tsim tau yooj yim, nrog rau cov khoom muaj zog thaum tseem khaws nws cov elasticity. Cov khoom tiav MED-hom yog cov khoom ruaj khov thiab tiv taus uas ua rau lawv zoo rau cov kev siv uas xav tau, xws li cov ntaub thaiv bumper, casters, rollers, forklift log tsheb, cov khoom siv tshuab thiab lwm yam. Ntxiv mus, MED kuj tseem siv tau ua tus choj rau semi-conductor thiab ua tus neeg sawv cev kho rau epoxy thiab polyurea.
Rau 4,4'-Methylenebis(2-ethyl-6-methylaniline) / MMEA thoob ntiaj teb. Peb cov khoom tsim tawm txhua xyoo yog 400 metric tons.
Ntim: 180kgs / hnab; 300kgs / hnab, 18kgs / hnab
Kev Khaws Cia thiab Kev Thauj Mus Los: Khaws cia rau qhov chaw uas muaj cua nkag tau zoo. Vim tias cov khoom no muaj qhov hygroscopicity me ntsis, thov tsis txhob kov dej thiab tsis txhob tshav ntuj. Kaw lub thawv kom nruj tom qab siv. Lub caij no, nws tsis tuaj yeem khaws cia nrog cov tshuaj oxidants.
Lub sijhawm khaws cia: 12 lub hlis
| 1. | |
| 2. | |
| 3. | |
| 4. | |
| 5. | |
| 6. | TDI 80/20 |
| 7. | TDI-Bases Polyisoyanurate (RC) |
| 8. | NDI (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. | CAS 91-97-4 |
| 15. | TEOF CAS 122-51-0 |
| 16. | MOCA CAS 101-14-4 |
| 17. | PTSI CAS 4083-64-1 |
| 18. | thiab lwm yam ... |
Sau koj cov lus ntawm no thiab xa tuaj rau peb
