Ngwa na nkwadebe nke hydroxyethyl methyl cellulose hemsc

Enwere ike iji Hydyythyl Cellulose hemsc nwere ike iji gị na nchedo celliid, emififier na ndị na-agbasasị na-arụ ọrụ ya na 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 e mejupụtara na-eji owu nụchara anụcha na ethylene oyure dị ka onye na-emepụta ihe na-eme ihe na-akwado hydroxyethyl cellulose. A na-akwadebe ihe eji eme ihe na-akwadebe hydroxyethyl na-akwadebe na akụkụ dị iche iche, 300-80 akụkụ nke oxy, 300-90 akụkụ nke methyl chloride, na 16-19 akụkụ nke valial 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 ~ 50 ℃, tinye ngwakọta nke oghere dị iche iche, oge nke alkalization bụ 30 Celsius C ruo 30 Celsius 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, gbakwunye na-adịrị anụ ahụ actipiration acid tupu oge eruo:

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.

E ji ya tụnyere teknụzụ mmepụta nke Ether dị ugbu a, ihe okike nke Etylene dị ka onye na-emepụta ihe na-eme ihe na-eme, ma nwee hydroxyethyl n'oge nchekwa nchekwa n'oge nchekwa nchekwa. Enwere ike iji ya kama nke ethers ndị ọzọ.