Kedu ka methyl hydroxyethythythyl cellose kwadebere?

Ndabere na echiche

Mkpụrụ osisi polmer na-ejikarị polymer dị mma na-eme site na polymer polmese site na ọgwụgwọ kemịkal. Mgbe nrụpụta nke akwara na afọ nke iri na itoolu, ndị na-emepụta ihe mejupụtara usoro cellulose nke ọtụtụ ndị ọrụ mkpụrụ ndụ, na-emetụta ọtụtụ ngalaba ọrụ. A na-eji cellonose ether (comdyythylythythythythythythythythythythythythythythythythythythythythyythythythythythythythymythythythymythythymythythythylythymythythythythylythythythythylythythylythylythylythylythylythythylythylythym cellonose (cellylyyth cellulose (hpdyyth cellulose (mhp) na ndị ọzọ na-aghọ "ụlọ ọrụ monosodium Glutamate "ma bụrụkwa ihe na-egwu egwu mmanụ, ihe owuwu, nri, ọgwụ, ọgwụ na kemịkalụ nke ụbọchị.

Hydyl methyth Cellulose (MHPC) bụ ọgwụ na-enweghị isi, ntụ ntụ ọcha na-acha ọcha nke nwere ike ịgbasasị na mmiri oyi iji mepụta ngwọ mmiri. O nwere njirimara nke ndị na-eme ihe, na-ekekọta, na-agbasa, na-agbasa, na-ese ihe nkiri, ịgbachitere, na-arụ ọrụ, na-eme ihe na-echebe ma na-echebe colloid. N'ihi ihe omenkà na-arụ ọrụ nke usoro ihe a, enwere ike iji ya dị ka ihe nchebe colloidal, emilfier na ndị na-achụsasị. Ngwọta Hydroxyethyl methylcelllose na-enwe ezigbo hydrophility ma bụrụ onye na-ahụ maka njide dị mma. N'ihi na hydroxyethyl methylcelllose nwere hydroxyethyyyyyyyyyyyyyl, ọ nwere ezigbo mgbochi mgbochi, ezigbo viscosis nkwụsi ike n'oge nchekwa nchekwa.

A na-akwadebe hydylythyl methylcelllose (hems) na-ewebata Omide oxide oxide ndị nọchiri anya (Mc), na nguzogide nnu ya nke ọma. Ọnọdụ gelition nke methylcellose dị elu karịa nke MC.

Ndoko

Mma

Ihe njiri mara nke hydroxyethyl methylcelllose (hemsc) bu:

1. Solubality: soluble na mmiri na ụfọdụ ihe mgbaze. Enwere ike ịgbasa ya na mmiri oyi. A na-ekpebi itinye uche ya kachasị elu site na viscosity. Ngụgụ dị iche iche na viscosity. N'okpuru viscosity, ka mkpali ike.

2. Nkwụgide nnu: ngwaahịa na-abụghị nke ionic na-abụghị nke ikuku na-abụghị nke ọma, yabụ, ha dịtụsi ike na ngwọta igwe elektrọl dị adị, kama ọ ga-eme ka electric na ọdịda.

3)

4

5. Ihe dị omimi na isi dị ala na isi na-adị ọnụ: na-ejikarị nri na ọgwụ n'ihi na ọ gaghị enwe oke ma nwee isi na isi.

6. Nchigide mildew: Hems na-enwe ezigbo mma na-eguzogide na ndakpọ dị mma n'oge nchekwa nchekwa.

7. PHU Nkwụsi ike: Ngwọta nke osisi nke ngwaahịa Hemsc na-emetụta nke ngwaahịa Hempc na-emetụta ya, uru PO bara uru dịtụ ọnụ n'ime ogo 3.0 11.0.

Akwukwo icho oru

Enwere ike iji Hydylthylthylthyl methylcelllose dị ka onye na-echebe colloidal, emulsifier na ndị na-agbasasị n'ihi ọrụ ya dị elu na-arụ ọrụ na-arụ ọrụ. Ihe atụ ya dị ka ndị a:

1. Mmetụta nke hydroxyethyl methylcelllose na arụmọrụ ciment. Hydylythyl methylcelllose bụ ọgwụ na-enweghị isi, ntụ ntụ ọcha na-acha ọcha nke nwere ike ịgbasasị na mmiri oyi iji mepụta ngwọ mmiri. O nwere njirimara nke ndị na-eme ihe, na-ekekọta, na-agbasa, na-agbasa, na-ese ihe nkiri, ịgbachitere, na-arụ ọrụ, na-eme ihe na-echebe ma na-echebe colloid. Ebe ọ bụ na ihe ngwọta osisi nwere ọrụ na-arụ ọrụ, enwere ike iji ya dị ka onye na-echebe colloidal, emilfier na ndị na-agbasa. Ngwọta Hydroxyethyl methylcelllose na-enwe ezigbo hydrophility ma bụrụ onye na-ahụ maka njide dị mma.

2 60-70 g nke acrylic emullion; 550-650 g nke calcium siri ike; 70-90 g nke ugo talcum; Isiume cellulose es 30-40g; ihe ngwọta dị elu nke na-agbanwe agbanwe. AIDP-usoro enyemaka nke 3-6G; antiseptik na fungicide 1.5-2.5g; Ndị na-achụsapụ 1.8-2.2G; na-eme ihe na-akwụ ụgwọ 1.8-2.2G; 3.5-4.5g; Ethylene glycol 9-11g; Ihe ngwọta Hydyythyl methylcelllose nke 2-4% hydroxyethyl methylcellose na mmiri; A na-eme ihe ngwọta mmiri a na-eme nke ọma site na 1-3% ligrocellose na-eme site na mmiri.

Njikere

Usoro nkwadebe hydroxyethyl methyl cellulose, usoro a si afkpo a na-eji osisi eme ihe dị ka onye na-ahụ maka etherification iji kwadebe hydroxyethyl methyl sellithyl cellulose. Akụkụ dị arọ nke akụrụngwa maka ịkwadebe hydroxyethyl na-esochi owu, 30-80 akụkụ nke celloxide comploxide, 80-90 akụkụ nke methyl chloride, akụkụ nke 8-19 nke glacial acetic acid; Nzọụkwụ ahụ akọwapụtara bụ:

Nzọụkwụ mbụ, na mmeghachi omume, gbakwunye toluene na ngwakọta isropropanol, mmiri, na sodium hydroxide, kpoo ọkụ ruo 60-80 ° C, na-ekpo ọkụ maka nkeji 2040;

Nzọụkwụ nke abụọ, alkalization: ajụkwa ihe a dị n'elu 30-50 Celsius C, na-eme ka ọ dị 0.006lizen na-eme ihe dị ka awa 2, na ala alkalization bụ 30 Celsius C rue 50 Celsius C;

Nzọụkwụ nke atọ, Elutalification: Mgbe Alkalization a ga-emecha, a na-enyocha ihe na 0.07MPa, na ethylene oxide na methylch chloride a na-agbakwunye maka 30-50 nkeji; Oge izizi nke Ether: 40-60 Celsius C, 1.0-2.0, a na-achịkwa nrụgide dị n'etiti 0.15 na 0.3MPA; Agba nke abụọ nke ether: 60 ~ 90 ℃, 2.0 ~ awa 2.5, a na-achịkwa nrụgide dị n'etiti 0.4 na 0.8Ma;

Nzọụkwụ nke anọ, a na-ahụ maka ihe nke anọ: Tinye ihe atụ ahụ acid acetic acid tupu a na-eme ka okpomọkụ na-ebute neuthaization, na-eme ka ọ bụrụ 6) elekere asatọ, a ga-emecha nke ọma. A na-ejikọ ya na mmiri mmiri jupụtara na ya site na ngwangwụ nke njikọ osmosis na 90 Celsius C ruo 100 Celsius C;

Nzọụkwụ nke ise, ịsacha ịsa ahụ: Ihe omume na nzọụkwụ nke anọ bụ centrifuged site na iji ihe eji eme ka ọ bụrụ mmiri na-ekpo ọkụ tupu ị saa ahụ.

Nzọụkwụ nke isii, a na-akpọ nkụ: a na-asacha ihe na-acha ọcha, na ihe a na-akpọnwụ na 150-170 Celsius C, a na-egwepịa ihe ndị a mịrị amị na ya.

E ji ya tụnyere teknụzụ mmepụta nke Ether dị ugbu a, ihe okike dị ugbu a dị ka onye na-ahụ maka ncheta dị ka onye na-elekọta ihe na-eguzosi ike na-eguzosi ike n'ihi na nwere hydroxye yroxye yì. O nwere ezigbo viscosity na ndọchi anya na-eguzogide n'oge nchekwa nchekwa. Enwere ike iji ya mee ihe kama ndị ọzọ eyers celluuloso.