DI METHYL ETHANOLAMINE (DMEA)

DI METHYL ETHANOLAMINE, ndi organic pawiri, mankhwala formula C5H13NO2, kwa madzi opanda mtundu kapena mdima wachikasu mafuta, akhoza miscible ndi madzi, mowa, sungunuka pang'ono mu ether.Amagwiritsidwa ntchito makamaka ngati emulsifier ndi asidi mpweya kuyamwa, asidi m'munsi kulamulira wothandizila, polyurethane thovu chothandizira, amagwiritsidwanso ntchito ngati mankhwala antitumor monga nayitrogeni mpiru hydrochloride wapakatikati.

Katundu:Izi zimakhala ndi fungo la ammonia lopanda mtundu kapena lachikasu, loyaka.Zitha kukhala zosakanikirana ndi madzi, ethanol, benzene, ether ndi acetone.Kachulukidwe wachibale 0.8879, kuwira mfundo 134,6 ℃.Pozizira kwambiri - 59. O℃.Poyatsira 41 ℃.Kung'anima (chikho chotseguka) 40 ℃.Viscosity (20 ℃) ​​3.8mPa.s.Refractive index 1.4296.

Njira yokonzekera:

1.Ethylene oxide process ndi dimethylamine ndi ethylene oxide ammonia, kudzera mu distillation, distillation, kutaya madzi m'thupi.

Njira ya 2.Chloroethanol imapezeka ndi saponification ya chloroethanol ndi alkali kuti ipange ethylene oxide, ndiyeno imapangidwa ndi dimethylamine.

 Ntchito za DMEA:

Ntchito yothandizira ya N,N-dimethylethanolamine DMEA ndiyotsika kwambiri, ndipo imakhala ndi mphamvu pang'ono pakuwuka kwa thovu ndi kachitidwe ka gel, koma dimethylethanolamine DMEA ili ndi alkalinity yolimba, yomwe imatha kuchepetsa kuchuluka kwa zinthu zomwe zimatulutsa thovu Acids, makamaka zomwe zili mu isocyanates. , motero kusunga ma amine ena mu dongosolo.The otsika ntchito ndi mkulu neutralizing mphamvu ya dimethylethanolamine DMEA amachita ngati chotchinga ndipo makamaka zopindulitsa pamene ntchito osakaniza triethylenediamine, kuti ankafuna anachita mlingo chingapezeke ndi otsika woipa wa triethylenediamine.

Dimethylethanolamine (DMEA) ili ndi ntchito zambiri, monga: dimethylethanolamine DMEA ingagwiritsidwe ntchito pokonzekera zokutira madzi;dimethylethanolamine DMEA ndi zopangira za dimethylaminoethyl methacrylate, zomwe zimagwiritsidwa ntchito pokonzekera anti-Static agents, zokometsera nthaka, zipangizo zopangira, zowonjezera mapepala ndi flocculants;Dimethylethanolamine DMEA imagwiritsidwanso ntchito popangira madzi kuti asawonongeke.

Mu polyurethane thovu, dimethylethanolamine DMEA ndi co-chothandizira ndi zotakataka chothandizira, ndi dimethylethanolamine DMEA angagwiritsidwe ntchito popanga flexible polyurethane thovu ndi okhwima polyurethane thovu.Pali gulu la hydroxyl mu molekyulu ya dimethylethanolamine DMEA, yomwe imatha kuchitapo kanthu ndi gulu la isocyanate, kotero kuti dimethylethanolamine DMEA imatha kuphatikizidwa ndi molekyulu ya polima, ndipo sizikhala zosinthika ngati triethylamine.

Kupaka katundu:Pogwiritsa ntchito ng'oma yachitsulo, kulemera kwa 180kg pa ng'oma.Kusunga pamalo ozizira ndi mpweya wokwanira.Sungani ndi kunyamula molingana ndi mankhwala oyaka ndi poizoni.