I-DI METHYL ETHANOLAMINE (DMEA)

I-DI METHYL ETHANOLAMINE, yi-organic compound, i-chemical formula C5H13NO2, yolwelo olunamafutha olungenambala okanye olumnyama, lunokuxutywa ngamanzi, utywala, lunyibilika kancinane kwi-ether.Isetyenziswa kakhulu njenge-emulsifier kunye ne-asidi yokufunxa igesi, i-agent yokulawula isiseko se-asidi, i-polyurethane foam catalyst, ikwasetyenziswa njengamachiza e-antitumor afana ne-nitrogen mustard hydrochloride ephakathi.

Iinkcazelo ngeempawu:Le mveliso inevumba le-ammonia elingenambala okanye ulwelo olutyheli, olunokutsha.Inokudityaniswa namanzi, i-ethanol, ibenzene, i-ether kunye ne-acetone.Uxinzelelo olunxulumeneyo 0.8879, indawo yokubilisa 134,6℃.Indawo yokukhenkceza – 59. O℃.Indawo yokutshisa 41℃.Indawo edanyazayo (indebe evulekileyo) 40℃.Viscosity (20℃) 3.8mPa.s.Refractive index 1.4296.

Indlela yokulungiselela:

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

I-2. Inkqubo ye-Chloroethanol ifunyenwe nge-saponification ye-chloroethanol kunye ne-alkali ukuvelisa i-ethylene oxide, kwaye emva koko ihlanganiswe ne-dimethylamine.

 Usetyenziso lwe-DMEA:

Umsebenzi we-catalytic we-N, N-dimethylethanolamine DMEA uphantsi kakhulu, kwaye unempembelelo encinci ekunyukeni kwegwebu kunye nokuphendula kwejeli, kodwa i-dimethylethanolamine DMEA ine-alkalinity eyomeleleyo, enokuthi ithintele ngokufanelekileyo inani lomkhondo kwizinto ezinogwebu lwe-Acids, ngakumbi ezo zikwi-isocyanates. , ngaloo ndlela gcina ezinye iiamines kwinkqubo.Umsebenzi ophantsi kunye nobuchule obuphezulu bokungathathi hlangothi kwe-dimethylethanolamine DMEA isebenza njenge-buffer kwaye inenzuzo ngakumbi xa isetyenziswe ngokudibanisa ne-triethylenediamine, ukwenzela ukuba izinga lokuphendula elifunwayo linokufezekiswa ngokugxilwa okuphantsi kwe-triethylenediamine.

I-Dimethylethanolamine (i-DMEA) inoluhlu olubanzi lokusetyenziswa, njenge: i-dimethylethanolamine DMEA ingasetyenziselwa ukulungiselela iingubo ezichithwa ngamanzi;I-dimethylethanolamine i-DMEA iphinda ibe yinto eluhlaza ye-dimethylaminoethyl methacrylate, esetyenziselwa ukulungisa i-anti-Static agents, i-conditioners yomhlaba, izinto zokuqhuba, izongezo zephepha kunye ne-flocculants;I-dimethylethanolamine DMEA ikwasetyenziswa kwiiarhente zokunyanga amanzi ukuthintela ukubola kwebhoyila.

Kwi-polyurethane foam, i-dimethylethanolamine DMEA i-co-catalyst kunye ne-catalyst esebenzayo, kwaye i-dimethylethanolamine DMEA ingasetyenziselwa ukuqulunqwa kwe-flexible polyurethane foam kunye ne-polyurethane foam eqinile.Kukho iqela le-hydroxyl kwi-molecule ye-dimethylethanolamine DMEA, enokusabela kunye neqela le-isocyanate, ngoko ke i-dimethylethanolamine DMEA inokudibaniswa ne-polymer molecule, kwaye ayiyi kuba yinto ephazamisayo njenge-triethylamine.

Ukupakishwa kwemveliso:Usebenzisa ukupakishwa kwegubu lentsimbi, ubunzima bobunzima bungama-180kg ngegubu ngalinye.Gcina kwindawo epholileyo nengena umoya.Gcina kwaye uhambise ngokwemichiza enokutsha kunye netyhefu.