I-DI METHYL ETHANOLAMINE (DMEA)

I-DI METHYL ETHANOLAMINE, yi-organic compound, i-chemical formula C5H13NO2, yolwelo olunamafutha olungenambala okanye olumthubi omnyama, inokuxubaniswa namanzi, utywala, inyibilike kancinci kwi-ether. Isetyenziswa kakhulu njenge-emulsifier kunye ne-acid gas absorbent, i-acid base control agent, i-polyurethane foam catalyst, ikwasetyenziswa njengeziyobisi zokulwa nomhlaza ezifana ne-nitrogen mustard hydrochloride intermediate.

Iipropati:Le mveliso inevumba le-ammonia elingenambala okanye ulwelo olutyheli, olunokutsha. Ingaxutywa namanzi, i-ethanol, i-benzene, i-ether kunye ne-acetone. Uxinano oluhambelanayo 0.8879, iqondo lokubila 134,6℃. Iqondo lokuqandisa – 59. O℃. Iqondo lokutsha 41℃. Iqondo lokutsha (indebe evulekileyo) 40℃. Ukuqina (20℃) 3.8mPa. s. Isalathisi sokurhawuzelela 1.4296.

Indlela yokulungiselela:

1. Inkqubo ye-ethylene oxide yi-dimethylamine kunye ne-ethylene oxide ammonia, ngokusebenzisa i-distillation, i-distillation, kunye nokuphelelwa ngamanzi emzimbeni.

2. Inkqubo yeChloroethanol ifunyanwa ngokufaka i-chloroethanol kunye ne-alkali kwi-saponification ukuvelisa i-ethylene oxide, ize emva koko yenziwe nge-dimethylamine.

 Izicelo ze-DMEA：

Umsebenzi we-catalytic we-N,N-dimethylethanolamine DMEA uphantsi kakhulu, kwaye awunampembelelo ingako ekunyukeni kwe-foam kunye ne-gel reaction, kodwa i-dimethylethanolamine DMEA ine-alkalinity enamandla, enokuthi inciphise ngempumelelo inani le-trace kwi-foam components. Ii-Acids, ingakumbi ezo zikwi-isocyanates, ngaloo ndlela zigcina ezinye ii-amines kwinkqubo. Umsebenzi ophantsi kunye nokukwazi okuphezulu kwe-dimethylethanolamine DMEA kusebenza njenge-buffer kwaye kuluncedo ngakumbi xa kusetyenziswa kunye ne-triethylenediamine, ukuze izinga lokuphendula elifunekayo lifezekiswe ngoxinzelelo oluphantsi lwe-triethylenediamine.

I-Dimethylethanolamine (DMEA) ineendlela ezahlukeneyo zokusetyenziswa, ezinje ngezi: i-dimethylethanolamine I-DMEA ingasetyenziselwa ukulungisa izinto ezixutywa ngamanzi; i-dimethylethanolamine I-DMEA ikwayinto eluhlaza ye-dimethylaminoethyl methacrylate, esetyenziselwa ukulungiselela ii-anti-Static agents, izinto zokulungisa umhlaba, izinto eziqhuba amanzi, izongezo zephepha kunye nee-flocculants; i-dimethylethanolamine I-DMEA ikwasetyenziswa kwii-arhente zonyango lwamanzi ukuthintela ukugqwala kwebhoyila.

Kwi-polyurethane foam, i-dimethylethanolamine DMEA yi-co-catalyst kunye ne-reactive catalyst, kwaye i-dimethylethanolamine DMEA ingasetyenziswa ekwenzeni i-polyurethane foam eguquguqukayo kunye ne-polyurethane foam eqinileyo. Kukho iqela le-hydroxyl kwi-molecule ye-dimethylethanolamine DMEA, enokusabela neqela le-isocyanate, ngoko ke i-dimethylethanolamine DMEA inokudityaniswa ne-polymer molecule, kwaye ayiyi kuba ne-volatious njenge-triethylamine.

Ukupakisha imveliso:Sebenzisa ipakethe yedrama yentsimbi, ubunzima obupheleleyo yi-180kg ngedrama nganye. Gcina kwindawo epholileyo nengena umoya. Gcina kwaye uthuthe ngokweekhemikhali ezitshayo nezinobungozi.