| Inoa kemika | 4,4'-Methylene-bis(2-methyl-6-ethylaniline) |
| Helu CAS | 19900-72-2 |
| ʻO ke ʻano molekole | C19H26N2 |
| Kaumaha molekole | 282.4231 |
| Ka nui o ka paʻa | 1.039 g/cm3 |
| Wahi hoʻohuihui | 85°C |
| Kikowaena paila | 443.1°C ma 760 mmHg |
| Kaumaha kikoʻī | 1.44 (paʻa) ma 24 ℃ |
| Wahi hoʻāla | 266°C |
| helehelena | Pauka keʻokeʻo |
| ka makū | Ma lalo o 0.3% |
| Ka waiwai ʻAmine | 390-408 KOH mg/g |
| Mea hoʻoheheʻe ʻole ʻia ka acetone | ʻAʻohe |
| Ka chlorine holoʻokoʻa | Ma lalo o 10 ppm |
| Maʻemaʻe | 98.0% |
| Hoʻohana nui | ʻAla hoʻōla polyurethane, ʻala hoʻōla no ka resin epoxy, mea hoʻolōʻihi kaulahao |
| Kaomi mahu | 4.75E-08mmHg ma 25°C |
4,4′-Methylenebis(2-ethyl-6-methylaniline) / MMEA CAS No. 19900-72-2
Hoʻohana ʻia ʻo 4,4'-Methylenebis(2-ethyl-6-methylaniline) / MMEA, helu CAS 19900-72-2, ma ke ʻano he mea hoʻolōʻihi kaulahao no nā elastomers polyurethane a ma ke ʻano he mea hoʻōla no ka resin epoxy e hoʻomaikaʻi i nā waiwai mechanical a me dynamic o nā huahana. Hiki ke hoʻohana ʻia ʻo MED ma ke ʻano he hui alakaʻi no nā polyimides a ma ke ʻano he mea waena no ka synthesis organik.
Kūpono no ka hoʻolei ʻana i ka polyurethane (CPU), ka polyurethane thermoplastic (TPU), nā elastomers RIM a me ka polyurea pīpī i ke kahua polyurethane. Hoʻohana pū ʻia ʻo MED no ka hana ʻana, prepreg a me nā uhi anticorrosive kemika i ke kahua epoxy resin. Hoʻohana ʻia ʻo MED i ka synthesis o nā prepolymers, me ka polyether a me ka polyester.
He hopena kūpono ʻo MED no nā huahana i hoʻopau ʻia e koi ana i ke kala māmā a me ka anti-aging. Hiki ke hoʻopili ʻia ʻo MED me nā mea hoʻōla ʻano amine ʻē aʻe (compound) e hoʻokō ai i nā waiwai kino maikaʻi aʻe.
He mau mea hoʻōla ʻano amine ʻo MED a me MOCA. Eia nō naʻe, he aloha kaiapuni ʻo MED a emi ka haumia i ka hoʻohālikelike ʻana me MOCA. Hiki iā MED ke pani iā MBOEA a me HQEE ma nā huahana PU, ʻaʻohe mea CPU (casting polyurethane) a i ʻole TPU (thermoplastic polyurethane). E like me MOCA, hōʻike nā elastomers ʻano MED me ke kūpaʻa wela maikaʻi loa e koi ana i ka hana ma luna o 120 ℃.
He mea hoʻolōʻihi kaulahao diamine ʻala a me ka mea hoʻōla ka MED/MMEA. Ma muli o nā lula paʻa no ka hoʻohana ʻana iā MOCA, ʻo ka MED aloha ʻāina, ʻaʻole haumia kekahi koho kūpono e pili ana i nā ʻano noi like ʻole. He versatility a me ke kūʻokoʻa hoʻolālā nā polyurethanes MED-base, me nā waiwai ikaika kiʻekiʻe me ka mālama ʻana i kona elasticity. He paʻa a kūpaʻa nā huahana i hoʻopau ʻia me ke ʻano MED e hiki ai iā lākou ke kūpono no nā noi koi, e like me nā bumper pads, casters, rollers, forklift tires, nā ʻāpana mīkini a pēlā aku. Eia kekahi, hiki ke hoʻopili ʻia ʻo MED ma ke ʻano he mea hoʻāla alahaka ma ka semi-conductor a ma ke ʻano he mea hoʻōla ma ka epoxy a me ka polyurea.
No 4,4'-Methylenebis(2-ethyl-6-methylaniline) / MMEA ma ka honua holoʻokoʻa. ʻO kā mākou hana makahiki he 400 metric tons.
Hoʻopili ʻana: 180kgs/ʻeke; 300kgs/ʻeke, 18kgs/ʻeke
Ka mālama ʻana a me ka lawe ʻana: E mālama i kahi ea maikaʻi. No ka mea, he hygroscopicity iki kēia huahana, e ʻoluʻolu e pale i ka hoʻopili ʻana me ka wai a pale i ka lā. E sila pono i ka ipu ma hope o ka hoʻohana ʻana. I kēia manawa, ʻaʻole hiki ke mālama ʻia me nā oxidants.
Ola papa: 12 mahina
| 1. | |
| 2. | |
| 3. | |
| 4. | |
| 5. | |
| 6. | TDI 80/20 |
| 7. | Nā kumu TDI 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. | TODI CAS 91-97-4 |
| 15. | ʻO TEOF CAS 122-51-0 |
| 16. | MOCA CAS 101-14-4 |
| 17. | PTSI CAS 4083-64-1 |
| 18. | a pēlā aku... |
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