Ngwa na nkwadebe nke hydroxyethyl methyl cellulose hemsc

Hydroxyethythyl methyl cellulose hemscEnwere ike iji ya dị ka ihe nchebe celliid, emunsufier na ndị na-achụsasị n'ihi ọrụ ya na-arụ ọrụ na-arụ ọrụ. Ihe atụ nke ngwa ya dị ka ndị a: nsonaazụ nke hydroxyethyl methyl sellise na Njirimara nke ciment. Hydroxyethyl methylcelllose bụ enweghị isi, keenweghiuto, ụtọ, na-enweghị isi, na-acha ọcha ntụ ntụ nke na-agbaze na mmiri oyi na-etolite, ngwọta victos. O nwere ihe ndị na - eme mkpọtụ, na - ekesa, na - agbasa, na - agbasa, na - ese ihe nkiri, ịgbachi nkịtị, na - eme ka ihe na - efe efe ma na - echekwa. N'ihi ọrụ ala nke elu ala, enwere ike iji ya dị ka onye na-echebe colloid, onye emulsifier na onye na-achụsa. Ngwọta Hydroxyethythyl methyl cellulose a nwere ezigbo hydrophility ma bụrụ onye na-akwụ ụgwọ dị elu.
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Usoro maka ịkwadebe hydroxyethyl methyl cellulose, usoro ahụ na-eji owu nụchara anụcha na ethylene oxide dị ka onye na-elekọta ether iji kwadebehydroxyethythl methyl cellulose. Akụrụngwa ahụ maka ịkwadebe hydroxyethyl methyl cellilose na-akwadebe na ibu site na ibu dị iche iche, 30-80 akụkụ nke sodium hydroxide, 80-85 akụkụ nke Achịcha ọka, akụkụ 20-28 nke oxyathane, 80-90 akụkụ nke methyl chloride, na 16-19 akụkụ anụ ahụ acetic acid; Nzọụkwụ ahụ akọwapụtara bụ:

Nzọụkwụ mbụ, na-emegharị, tinye toluene na ngwakọta inopropanol, mmiri, na sodium hydroxide, na-ekpo ọkụ ruo 60 ~ 80 nkeji;

Nzọụkwụ nke abụọ, alkalization: ajụkwa ihe a dị n'elu 30 ~ 50 ℃, gbakwunye ngwakọta nke toluene na nitrogen 3, ma na-eme alkali mgbe dochie alkalization Ọnọdụ dị ka ndị a: Oge ALkalization bụ awa 2, na ọnọdụ okpomọkụ bụ 30 Celsius C rue 50 Celsius C;

Nzọụkwụ nke atọ, a ga-emecha ọrụ nke atọ, a na-emecha ya, a na-emegharị ihe ahụ na 0.07MPa, Ethlene Oxide na methyl chloride na methyl; Oge izizi nke Ether: 40 ~ 60 ℃, 1.0 ℃, 1.0 ~ 80 awa, a na-achịkwa nrụgide n'etiti 0.150.3Ma; the second stage of etherification: 60～90℃, 2.0～2.5 hours, the pressure is controlled between 0.40.8Mpa;

Nzọụkwụ nke anọ, a na-ewepụ ihe: Tinye anụ ahụ na-eme ka actipitation acid tupu oge eruo: 80 ℃ iji mepụta ihe mgbochi, okpomọkụ na-ebili ruo 102 ℃, na nchọpụta ph uru 68 Mgbe emechara ọdịda, jupụtara na mmiri ntụgharị site na ngwangwụ nke mgbọrọgwụ osmosis na 90 ℃ ~ 100 ℃;

Nzọụkwụ nke ise, ịsa ahụ centrifugal: ihe dị na ngụkọta nke anọ na-agbasa site na iji ihe kewara kewapụ na kechie ketsetle jupụtara na mmiri ọkụ tupu oge eruo, ihe a na-asa ya;

Nzọụkwụ nke isii, a na-ebupu ya: A na-ebugharị ihe ndị ahụ na-asa ahụ site na draịva a na-akwụghị ụgwọ, ihe a na-akpọnwụ na 150-170 Celsius C, a na-amịpụta ihe ndị a mịrị amị na paịlị.

Atụnyere na ndị dị adịcellugul etherTeknụzụ Mmepụta, Ihe okike nke Etylene dị ugbu a iji dozie hydroxyethyl ike, nkwụsi ike na-eguzogide na nchekwa nchekwa. Enwere ike iji ya kama nke ethers ndị ọzọ.