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DI METHYL ETHANOLAMINE (DMEA)

DI METHYL ETHANOLAMINE, waa iskudhis organic ah, formula kiimikaad C5H13NO2, loogu talagalay dareeraha saliidda ah ee aan midab lahayn ama mugdiga ah ee jaalaha ah, waxaa lagu khaldi karaa biyo, aalkolo, wax yar oo ku milma ether.Inta badan loo isticmaalo sida emulsifier iyo gaaska aashitada nuugaya, wakiilka xakamaynta saldhiga acid, kicinta xumbo polyurethane, sidoo kale loo isticmaalo daawooyinka antitumor sida nitrogen mustard hydrochloride dhexdhexaad ah.

DI METHYL ETHANOLAMINE1Guryaha:Alaabtani waxay leedahay ur ammonia ah oo aan midab lahayn ama dareere huruud ah, oo guban kara.Waxaa lagu qasi karaa biyo, ethanol, benzene, ether iyo acetone.Cufnaanta qaraabada 0.8879, barta karkarinta 134,6 ℃.Barafka qaboojinta - 59. O℃.Barta dabka 41 ℃.Barta fiishka (koob furan) 40 ℃.Viscosity (20 ℃) ​​3.8mPa.s.Tusmada dib-u-celinta 1.4296.

Habka diyaarinta:

Nidaamka 1.Ethylene oxide by dimethylamine iyo ethylene oxide ammonia, iyada oo loo marayo distillation, distillation, fuuqbax.

Nidaamka 2.Chloroethanol waxaa lagu helaa saponification ee chloroethanol iyo alkali si loo soo saaro ethylene oxide, ka dibna lagu dhex daro dimethylamine.

 Codsiyada DMEA

Dhaqdhaqaaqa catalytic ee N, N-dimethylethanolamine DMEA aad ayuu u hooseeyaa, waxayna leedahay saameyn yar oo ku saabsan kor u kaca xumbo iyo falcelinta jel, laakiin dimethylethanolamine DMEA waxay leedahay alkalinity xooggan, taas oo si wax ku ool ah u baabi'in karta qadarka raadraaca ee qaybaha xumbo Acids, gaar ahaan kuwa ku jira isocyanates. , sidaas darteed amiinada kale ku hay nidaamka.Dhaqdhaqaaqa hooseeya iyo awoodda dhexdhexaadinta sare ee dimethylethanolamine DMEA waxay u shaqeysaa sidii bakhaar waxayna si gaar ah faa'iido u leedahay marka lagu daro triethylenediamine, si heerka falcelinta la rabo lagu gaaro heerar hoose oo triethylenediamine ah.

Dimethylethanolamine (DMEA) waxay leedahay adeegsiyo kala duwan oo kala duwan, sida: dimethylethanolamine DMEA waxaa loo isticmaali karaa in lagu diyaariyo daaha biyaha lagu qasi karo;dimethylethanolamine DMEA sidoo kale waa walxo ceeriin ah oo loogu talagalay dimethylaminoethyl methacrylate, kaas oo loo isticmaalo in lagu diyaariyo wakiilada anti-static, qaboojiyeyaasha carrada, alaabta gacanta, wax lagu daro waraaqaha iyo flocculants;dimethylethanolamine DMEA sidoo kale waxaa loo isticmaalaa wakiilada daaweynta biyaha si looga hortago daxalka kuleyliyaha.

Xumbada polyurethane, dimethylethanolamine DMEA waa co-catalyst iyo kicin fal-celin ah, iyo dimethylethanolamine DMEA waxaa loo isticmaali karaa samaynta xumbo poliurethane dabacsan iyo xumbo poliurethane adag.Waxaa jira koox hydroxyl ah oo ku jirta molecule dimethylethanolamine DMEA, taas oo ka falcelin karta kooxda isocyanate, sidaas darteed dimethylethanolamine DMEA waxaa lagu dari karaa molecule polymer, mana noqon doonto mid kacsan sida triethylamine.

Baakadaha alaabta:Isticmaalka baakadaha durbaanka birta, miisaanka saafiga ah 180kg durbaankiiba.Ku kaydi meel qabow oo hawo leh.Ku kaydi oo u qaado si waafaqsan kiimikooyinka guban kara iyo kuwa sunta ah.

DI METHYL ETHANOLAMINE2


Waqtiga boostada: Abriil-19-2023