DI METHYL ETHANOLAMINE, ndi mankhwala achilengedwe, formula ya mankhwala C5H13NO2, yamadzimadzi amafuta opanda mtundu kapena achikasu akuda, amatha kusakanikirana ndi madzi, mowa, kusungunuka pang'ono mu ether. Amagwiritsidwa ntchito makamaka ngati emulsifier ndi acid absorbent, acid base control agent, polyurethane foam catalyst, komanso amagwiritsidwa ntchito ngati mankhwala oletsa khansa monga nitrogen mustard hydrochloride intermediate.
Katundu:Chogulitsachi chili ndi fungo la ammonia lopanda utoto kapena madzi achikasu, lotha kuyaka. Chikhoza kusakanikirana ndi madzi, ethanol, benzene, ether ndi acetone. Kuchulukana kwa 0.8879, kutentha 134,6℃. Kuzizira - 59. O℃. Kuyaka 41℃. Kuwala (chikho chotseguka) 40℃. Kukhuthala (20℃) 3.8mPa. s. Chizindikiro cha Refractive 1.4296.
Njira yokonzekera:
1. Njira ya ethylene oxide ndi dimethylamine ndi ethylene oxide ammonia, kudzera mu distillation, distillation, ndi kusowa madzi m'thupi.
2. Njira ya Chloroethanol imapezeka mwa kusaponification kwa chloroethanol ndi alkali kuti apange ethylene oxide, kenako n’kupanga ndi dimethylamine.
Kugwiritsa Ntchito kwa DMEA：
Ntchito yothandiza ya N,N-dimethylethanolamine DMEA ndi yotsika kwambiri, ndipo siikhudza kwambiri kukwera kwa thovu ndi gel reaction, koma dimethylethanolamine DMEA ili ndi alkalinity yamphamvu, yomwe imatha kuletsa kuchuluka kwa ma acids m'zigawo za thovu. Ma acids, makamaka omwe ali mu isocyanates, motero amasunga ma amine ena m'dongosolo. Ntchito yochepa komanso kuthekera kwakukulu koletsa kwa dimethylethanolamine DMEA kumagwira ntchito ngati buffer ndipo ndi yopindulitsa kwambiri ikagwiritsidwa ntchito limodzi ndi triethylenediamine, kotero kuti kuchuluka kwa zomwe mukufuna kuchita kungapezeke ndi kuchuluka kochepa kwa triethylenediamine.
Dimethylethanolamine (DMEA) imagwiritsidwa ntchito m'njira zosiyanasiyana, monga: dimethylethanolamine DMEA ingagwiritsidwe ntchito pokonza zokutira zosungunuka m'madzi; dimethylethanolamine DMEA ndi chinthu chopangira dimethylaminoethyl methacrylate, chomwe chimagwiritsidwa ntchito pokonza zinthu zotsutsana ndi kutentha, zoziziritsa kukhosi, zinthu zoyendetsera mpweya, zowonjezera pamapepala ndi zinthu zothira madzi; dimethylethanolamine DMEA imagwiritsidwanso ntchito pochiza madzi kuti apewe dzimbiri la boiler.
Mu thovu la polyurethane, dimethylethanolamine DMEA ndi co-catalyst komanso chothandizira chothandizira, ndipo dimethylethanolamine DMEA ingagwiritsidwe ntchito popanga thovu la polyurethane losinthasintha ndi thovu la polyurethane lolimba. Pali gulu la hydroxyl mu molekyulu ya dimethylethanolamine DMEA, yomwe imatha kuchita ndi gulu la isocyanate, kotero dimethylethanolamine DMEA ikhoza kuphatikizidwa ndi molekyulu ya polima, ndipo sidzakhala yosinthasintha ngati triethylamine.
Ma phukusi azinthu:Pogwiritsa ntchito ma CD a chitsulo, kulemera konse kwa 180kg pa ng'oma iliyonse. Sungani pamalo ozizira komanso opumira mpweya. Sungani ndikunyamula malinga ndi mankhwala oyaka moto komanso oopsa.
Nthawi yotumizira: Epulo-19-2023