Aikace-aikace da shirye-shiryen hydroxyethyl methyl selululose hemc

Hydroxyethyl methyl selululose hemcZa a iya amfani da shi azaman wakili mai kariya na Colloid, emulsifier da watsawa saboda farjin aikinta a cikin mafita. An example of its application is as follows: The effect of hydroxyethyl methyl cellulose on the properties of cement. Hydroxyethyl methylcellulose wani kamshin ƙanshi ne, mai ƙanshi da farin foda wanda ke narkewa a cikin ruwan sanyi don samar da bayyananne, maganin viscous. Yana da kaddarorin thickening, ɗauri, watsawa, emulsify, emping, m, m, farfajiya-aiki, riƙe danshi da kare colloids. Saboda farfajiya mai aiki na farfajiya na mafita mafi kyau, ana iya amfani dashi azaman wakili mai kariya na Colloid, wanda emulsifier da watsawa. Hydroxyethyl metyl selululue bayani yana da kyau hydrophility kuma shine wakili mai amfani da ruwa mai amfani da ruwa.
shirya
Hanya don shirya hydroxyl selululose, hanyar da ta ƙunshi ta amfani da auduga mai gyara a matsayin wakili da ethylene oxide don shiryaHydroxyethyl methyl pelululose. Kayan kayan abinci don shirya Hydroxyl Preelululose an shirya a sassa da nauyi: 700-80 sassa na sodium hydroxide, 80-85 sassa na sodium hydroxide, 80-85 sassa na Auduga, 20-28 sassa na oxyethane, 80-90 sassan ethyl chloride, da kuma 16-19 sassa na alamomi acetic acid; takamaiman matakai sune:

Mataki na farko, a cikin reactor, ƙara Toluene da cakuda isopropannol, ruwa, da sodium hydroxide, a minti 80 ℃, mintuna 40;

Mataki na biyu, Alfalization: sanyi kayan da ke sama zuwa 30 ~ 50 ℃, ƙara cakuda da nitrogen don maye gurbin abubuwa 3, kuma cika alkalia bayan musanya bayan musanya bayan maye gurbin alkalibis Yanayi kamar haka: Lokacin alkalization yana da 2 hours, kuma zazzabi na alkalization shine 30 ° C zuwa 50 ° C;

Mataki na uku, ETherlibliation an kammala shi, an cire kayan masarufi zuwa 0.05 ~..0 15mpsa, ethyl, ethyl chloride an ƙara, kuma ana kiyaye shi na 30 ~ minti; Farkon mataki na EThertification: 40 ~ 60 ℃, 1.0 ~ 2.0 hour, an sarrafa hours tsakanin 0.150.3mpa; Matsayi na biyu na EThertification: 60 ~ 90 ℃, 2.0 ~ 2 2.5 ~ ~ end, an sarrafa matsi tsakanin 0.40.80.

The 4th step, neutralization: add metered glacial acetic acid in advance to the precipitation kettle, press into the etherified material for neutralization, heat up 75～80 ℃ to carry out precipitation, the temperature rises to 102 ℃, and the detection pH value is 68 Lokacin da hazo ya cika, tanki mai hazo yana cika da famfo na na'urar OSMosis da ke bi da shi a 90 ℃ ~ 100 ℃;

Mataki na biyar, centrugal Wanke: kayan a mataki na huɗu centrifuguge ne centrififuge cike da ruwan hoda a gaba, kuma kayan wanke;

Mataki na shida, Centrifugal bushewar: An bushe kayan da aka wanke a cikin bushewa ta hanyar kwance a kwance, kayan da aka bushe a cikin 150-170 ° C, da kayan da aka bushe suna da tsari.

Idan aka kwatanta da data kasancepel etherFasahar samarwa, kirkirar da aka yi amfani da ohylene oxide na Ethdew don shirya Hydroxyl methyl, kuma yana da kyakkyawan kwarewar hydroxylulyl, kuma yana da jingina mai kyau na son rai yayin ajiya na dogon lokaci. Za a iya amfani da shi maimakon wasu masu sile.