I-DI METHYL ETHANOLAMINE (DMEA)

I-DI METHYL ETHANOLAMINE, iyinhlanganisela yezinto eziphilayo, ifomula yamakhemikhali engu-C5H13NO2, yoketshezi olunamafutha angenambala noma aphuzi ngokumnyama, ingaxubana namanzi, utshwala, inyibilike kancane ku-ether.Isetshenziswa kakhulu njenge-emulsifier ne-asidi emunca igesi, i-ejenti yokulawula isisekelo se-asidi, i-polyurethane foam catalyst, iphinde isetshenziswe njengezidakamizwa ezilwa nesimila ezifana ne-nitrogen mustard hydrochloride medium.

Izakhiwo:Lo mkhiqizo unephunga le-ammonia elingenambala noma eliphuzi, elivutha umlilo.Ingaxubana namanzi, i-ethanol, i-benzene, i-ether ne-acetone.Ukuminyana okuhlobene 0.8879, iphoyinti elibilayo 134,6℃.Indawo yokubanda – 59. O℃.Iphoyinti lokuthungela 41℃.Iphuzu elikhanyayo (inkomishi evulekile) 40℃.I-Viscosity (20℃) 3.8mPa.s.Inkomba ye-Refractive 1.4296.

Indlela yokulungiselela:

I-1.Inqubo ye-Ethylene oxide nge-dimethylamine ne-ethylene oxide ammonia, ngokusebenzisa i-distillation, i-distillation, i-dehydration.

I-2.Inqubo ye-Chloroethanol itholakala nge-saponification ye-chloroethanol ne-alkali ukukhiqiza i-ethylene oxide, bese ihlanganiswa ne-dimethylamine.

 Izicelo ze-DMEA:

Umsebenzi we-catalytic we-N,N-dimethylethanolamine DMEA uphansi kakhulu, futhi unomphumela omncane ekukhuphukeni kwegwebu nokusabela kwejeli, kodwa i-dimethylethanolamine DMEA ine-alkalinity eqinile, engakwazi ukunqanda ngempumelelo inani lomkhondo ezingxenyeni ezinegwebu Ama-Acids, ikakhulukazi lawo aku-isocyanate. , ngaleyo ndlela gcina amanye ama-amine ohlelweni.Umsebenzi ophansi kanye nekhono eliphezulu lokungathathi hlangothi le-dimethylethanolamine DMEA lisebenza njengesilondolozi futhi linenzuzo ikakhulukazi uma lisetshenziswa lihlanganiswe ne-triethylenediamine, ukuze izinga lokusabela elifiswayo lifinyelelwe ngokugxila okuphansi kwe-triethylenediamine.

I-Dimethylethanolamine (i-DMEA) inezinhlobo eziningi zokusetshenziswa, njengokuthi: i-dimethylethanolamine DMEA ingasetshenziswa ukulungisa izigqoko ezihlanjululwa ngamanzi;I-dimethylethanolamine DMEA futhi iyimpahla eluhlaza ye-dimethylaminoethyl methacrylate, esetshenziselwa ukulungisa ama-anti-Static agents, ama-conditioner enhlabathi, izinto zokuqhuba, izithasiselo zephepha kanye nama-flocculants;I-dimethylethanolamine DMEA iphinde isetshenziswe kuma-ejenti okwelapha amanzi ukuvimbela ukugqwala kwebhoyili.

Ku-polyurethane foam, i-dimethylethanolamine DMEA iyi-co-catalyst futhi i-catalyst esebenzayo, futhi i-dimethylethanolamine DMEA ingasetshenziswa ekwakhiweni kwe-polyurethane foam eguquguqukayo kanye ne-polyurethane foam eqinile.Kukhona iqembu le-hydroxyl ku-molecule ye-dimethylethanolamine DMEA, engasabela ngeqembu le-isocyanate, ngakho-ke i-dimethylethanolamine DMEA ingahlanganiswa ne-molecule ye-polymer, futhi ngeke ibe nokuguquguquka njenge-triethylamine.

Ukupakishwa komkhiqizo:Usebenzisa ukupakishwa kwesigubhu sensimbi, isisindo senetha singama-180kg isigubhu ngasinye.Gcina endaweni epholile futhi enomoya.Gcina futhi uthuthe ngokwamakhemikhali avuthayo nanobuthi.