I-DI METHYL ETHANOLAMINE, iyinhlanganisela yezinto eziphilayo, ifomula yamakhemikhali i-C5H13NO2, yoketshezi olunamafutha olungenambala noma oluphuzi olumnyama, ingaxutshwa namanzi, utshwala, incibilike kancane ku-ether. Isetshenziswa kakhulu njenge-emulsifier kanye ne-acid gas absorbent, i-acid base control agent, i-polyurethane foam catalyst, futhi isetshenziswa njengemithi yokulwa nomdlavuza njenge-nitrogen mustard hydrochloride intermediate.
Izakhiwo:Lo mkhiqizo unephunga le-ammonia elingenambala noma uketshezi oluphuzi, oluvuthayo. Ungaxubaniswa namanzi, i-ethanol, i-benzene, i-ether kanye ne-acetone. Ubuningi obuhlobene 0.8879, iphuzu lokubila 134,6℃. Iphuzu lokuqandisa - 59. O℃. Iphuzu lokuvutha 41℃. Iphuzu lokuphazima (indebe evulekile) 40℃. Ukuqina (20℃) 3.8mPa. s. Inkomba yokuphazima 1.4296.
Indlela yokulungiselela:
1. Inqubo ye-ethylene oxide yi-dimethylamine kanye ne-ethylene oxide ammonia, ngokusebenzisa i-distillation, i-distillation, ukuphelelwa amanzi emzimbeni.
2. Inqubo ye-Chloroethanol itholakala ngokuhlanganiswa kwe-chloroethanol ne-alkali ukuze kukhiqizwe i-ethylene oxide, bese kuhlanganiswa ne-dimethylamine.
Izicelo ze-DMEA：
Umsebenzi wokuvuselela we-N,N-dimethylethanolamine DMEA uphansi kakhulu, futhi awunawo umthelela omkhulu ekukhuphukeni kwe-foam kanye nokusabela kwejeli, kodwa i-dimethylethanolamine DMEA ine-alkalinity enamandla, engakwazi ukuqeda ngempumelelo inani lokulandelela ezingxenyeni ze-foam. Ama-Acids, ikakhulukazi lawo aku-isocyanates, ngaleyo ndlela agcina amanye ama-amine ohlelweni. Umsebenzi ophansi kanye nekhono eliphezulu lokunciphisa i-dimethylethanolamine DMEA kusebenza njenge-buffer futhi kunenzuzo ikakhulukazi uma kusetshenziswa kanye ne-triethylenediamine, ukuze izinga lokusabela elifiselekayo litholakale ngokugxila okuphansi kwe-triethylenediamine.
I-Dimethylethanolamine (DMEA) inezinhlobo eziningi zokusetshenziswa, njenge: i-dimethylethanolamine I-DMEA ingasetshenziswa ukulungiselela izembozo ezincibilikiswa ngamanzi; i-dimethylethanolamine I-DMEA futhi iyinto eluhlaza ye-dimethylaminoethyl methacrylate, esetshenziselwa ukulungiselela ama-anti-Static agents, ama-soil conditioner, izinto ezihambisa umoya, izithasiselo zephepha kanye nama-flocculants; i-dimethylethanolamine I-DMEA isetshenziswa futhi kuma-agent okwelapha amanzi ukuvimbela ukugqwala kwebhoyila.
Ku-polyurethane foam, i-dimethylethanolamine DMEA iyi-co-catalyst kanye ne-catalyst ephendulayo, kanti i-dimethylethanolamine DMEA ingasetshenziswa ekwakhiweni kwe-polyurethane foam eguquguqukayo kanye ne-polyurethane foam eqinile. Kukhona iqembu le-hydroxyl ku-molecule ye-dimethylethanolamine DMEA, engasabela neqembu le-isocyanate, ngakho-ke i-dimethylethanolamine DMEA ingahlanganiswa ne-polymer molecule, futhi ngeke ibe nokuguquguquka njenge-triethylamine.
Ukupakisha komkhiqizo:Usebenzisa iphakethe lesigubhu sensimbi, isisindo esiphelele singama-180kg ngesigubhu ngasinye. Gcina endaweni epholile futhi enomoya. Gcina futhi uthuthe ngokwamakhemikhali avuthayo nanobuthi.
Isikhathi sokuthunyelwe: Ephreli-19-2023