Mkpụrụ osisi eather bụ otu polymer ogige nwere ihe owuwu ether mere nke cellulose. Otu mgbanaka nke ọ bụla glucose na cellulose nwere otu hydropose otu atọ na carbon carbon nke abụọ, na hydrogen hydrogen na-anọchi otu hydrologen otu iji mepụta mkpụrụ ndụ eath.
Ngwa nke cellulose ether
1
A maara nke Ether dị ka "ụlọ ọrụ monosodium glutanate". Ekele dịrị ya nke ukwuu na-eme mkpọtụ, mmiri na-egbochi ya, a na-eji ya eme ihe na-eme ka ngwa ngwa, PVC resin, ntụ ntụ na arụmọrụ akụrụngwa ndị ọzọ. N'ihi mmụba nke ọkwa obodo m, mmepe nke ụlọ ọrụ akụrụngwa nke ụlọ ọrụ, na-aga n'ihu na-eme Nchebe nke ndị na-azụ ihe maka ndị na-azụ ihe na-abụghị nke IEH-Ionic na ngalaba ụlọ.
2. Ọkpụkpụ ọgwụ na-egbu egbu
A na-eji usoro ihe nkiri Cellugul, adhesives, fim ọgwụ, ndị na-agbasa, na-elekọta ma na-achịkwa ya ma na-achịkwa ya na-achịkwa ọgwụ na-achịkwa ya. Dị ka ihe ọkpụkpụ, ewet ether nwere ọrụ nke ime ka oge ọgwụ na-eme ka oge na mgbasawanye na mgbasa; Dị ka okpu na mkpuchi, ọ nwere ike zere imebi ihe na njikọta na mmeghachi omume, ma ezigbo ngwa ọrụ maka mmepụta nke ọgwụ na-akpata ọgwụ. Teknụzụ ngwa nke ọkwa ọgwụ na-egbu maramara na mba ndị mepere emepe.
3. Nrọ nri nri
Mpempe akwụkwọ nke mkpụrụ osisi EESET bụ ihe mgbakwunye nri dị mma. Enwere ike iji ya dị ka nri nri, mmachi na moisturizer ka sie ike, jigide mmiri, ma melite uto. A na-ejikarị ya na mba ndị mepere emepe, ọkachasị maka nri oriri, collagen, ihe ọisụ na-abụghị mmiri ara, mkpụrụ osisi na-amị mkpụrụ, nri e ghere eghe, wdg.
Usoro mmepụta ether
1. Hydroxyethyth methylcellose
Ationzọ nkwadebe nke hydroxyyl methylcellose, usoro ga-eji nụchara anụ ahụ dị ka akụrụngwa ethylene na-akwado hydroxyethylthyl. Akụkụ dị arọ nke akụrụngwa maka ịkwadebe hydroxyethyl methyl celdlose, 30-80 akụkụ nke oxy na ity, 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, tinye toluene, jupụta nitrogen maka nnọchi 3, ma na-eme alkali mgbe dochie. Alkalinization, alkalization conditions are: alkalization time is 2 hours, alkalization temperature is 30 ℃ 50 ℃;
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 mbụ nke Ether: 40-60 Celsius C, 1.0-2.0, nrụgide a na-achịkwa 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, acralization: Tinye acancalization acetic acid tupu a na-ebute ihe na-enweghị atụ, pịa ya na 102 Celsius C, na achoputala ya 68 mgbe achoputala nkpuru osisi. A na-ejikọ ya na 90 ℃ ~ 100 ℃ 100 ℃ Mmiri na-emeso site na ngwaọrụ osmosis
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.
2. Hydroxypyl Methylcellose
(1) na-emeso ndị na-acha uhie uhie ma ọ bụ nke ahịhịa na-arịa ọrịa soda, mgbe ahụ meghachi omume na mono-chloromethane na proplene oxide na proplene oxide, nụchaa ma kọọ ma kọọ ya.
(2) A na-enweta ya site na ịgwọ ọkwa kwesịrị ekwesị nke Methy Celllide, na-emegharị ya na toslene oxide dị elu na oke nrụgide dị elu, ma nwee nnukwu nrụgide maka ọkwa dị elu, ma na-emekwa ya. Ibu mmiri molecular sitere na 10 000 ka 1 500 000.
Oge post: Apr-07-2023