Mkpụrụ osisi ether (OA) bụ klas nke ihe eji eme ihe site na imegharị mmiri. Cellulose bụ isi ihe ọkụkụ nke osisi, na ụrọ cell bụ usoro nke polymers site na ogo nke ụfọdụ otu hydroxy dị iche iche. A na-eji ha n'ọtụtụ mpaghara dịka ụlọ, ọgwụ, ihe oriri, ihe ịchọ mma, wdg, ma na kemịkal ha pụrụ iche na kemịkalụ ha.
1. Nkewa nke Ether's
Enwere ike kewa mkpụrụ osisi cell na ụdị dị iche iche dabere na ụdị nke ndị nwebere na kemịkalụ. Ọdịdị kachasị na-ezubere dabere na ọdịiche dị na ndị nnọchi anya. Ethers ndị mmadụ na-emekarị bụ ndị a:
Methyl Cellulose (Mc)
Methyl cellulose na-emepụta site na iji dochie akụkụ hydroxyl nke cellulose molules na methyl). O nwere ezigbo ihe na-atọ ụtọ, ihe nkiri na akụrụngwa na-ejikọkarị ya ma na-ejikarị ya na akụrụngwa, mkpuchi, ọgwụ na ụlọ ọrụ nri na nri.
Hydroxypylththththththylcelllose (hpmc)
Hydroxypyl Methylcellose bụ cellulose Ether, nke a na-eji n'ọtụtụ ụlọ, kemịkalụ kemịkacha na nri ya ka mma. HPMC bụ onye na-abụghị nether sel na-enwe ihe ngosi nke njigide mmiri, ebe na-adọrọ adọrọ na nkwụsi ike.
Celloxymymymym cellulose (cmc)
Carboxymymylylylylylylylylylylylylylylylym cellulose eionic seonic etịpụta site na iwebata otu carroxyyylylythyl (-rch₂oh) dị iche iche na-akụ cellulose. CMC nwere ezigbo mmiri ga - ejikarị dị ka nke na - abụkarị ihe dị ka nke na - emegharị ya na nkwụsi ike. Ọ na-arụ ọrụ dị mkpa na nri, ọgwụ na ịchọ mma.
Ethyl cellulose (ec)
A na-enweta cellulose ethyl site na dochie otu hydroxyl na cellyl (-ch₂ch). Ọ nwere ezigbo hydrophobity ma na-ejikarị ya dị ka onye na-ere ihe nkiri na ihe ndị na-achịkwa ya na ụlọ ọrụ ọgwụ.
2. Na nke anụ ahụ na kemịkal nke eyers
Njirimara anụ ahụ na kemịkal nke mkpụrụ ndụ cellugul na-emetụtakarị ihe ndị dị ka ụdị mkpụrụ osisi cellulose eather, ụdị nke dochie anya. Ngwongwo ya bu ihe ndia:
Mmiri na-esochi ya
ITETS Cellusose nwere ezigbo mmiri solublity ma enwere ike igbaji na mmiri oyi ma ọ bụ mmiri ọkụ iji mepụta ngwọta colloidal. Dịka ọmụmaatụ, HPMC, CPMC, wdg.
Ngwongwo na-akpụ akpụ na fim
Eutters cellugul nwere ezigbo ihe ndị na-atọ ụtọ ma nwee ike ime ka viscositions nke ọma. Dịka ọmụmaatụ, ịgbakwunye hpmc iji rụọ ihe nwere ike ime ka plastity nwere ike ịmịpụta na ngwa agha ma kwalite ihe mgbochi na-ada. N'otu oge ahụ, ndị eutters celluse nwere ezigbo ihe nkiri na-akpụ akpụ akpụ ma nwee ike mepụta ihe nkiri na-edobe n'elu ihe, yabụ, a na-eji ha na mkpuchi mkpuchi.
Njide mmiri na nkwụsi ike
Ethslọ ndị etters nwekwara ezigbo mmiri ike, karịsịa n'ọhịa nke ụlọ. A na-ejikarị usoro nke mkpụrụ ndụ na-eme ka njigide nke cent, belata ihe m ga-emebi cracks, ma gbatịkwuo ọrụ ndụ. Na ubi nri, a na-eji cmc mee ihe dị ka ihe na-eme ka ụra na-egbu oge ihicha nri.
Chemical Gamical
Evers Ethers na-egosi nkwụsi ike na-adịghị mma na acid, alkali na ngwọta electrolyte, ma nwee ike ịnọgide na-arụ ọrụ na ọrụ dị iche iche dị mgbagwoju anya. Nke a na-enye ohere iji rụọ ọrụ n'ọtụtụ ụlọ ọrụ na-enweghị ndabichi site na kemịkal ndị ọzọ.
3. Usoro mmepụta nke cellulose Ether
Mmepụta nke cellose eather dị njikere site na mmeghachi omume ogo nke cellose eke. Usoro usoro bụ isi na-agụnye ọgwụgwọ alkalalization, mmeghachi omume nke mmeghachi omume, ịdị ọcha, wdg.
Ọgwụ alkalization
Akpa, osisi sellose (dị ka owu, osisi, wdg) ka a ga-agbanwe akụkụ hydrose n'ime mmiri mmanya na-enye nnu nnu.
Mmeghachi omume eatieration
The celllulose mgbe Alkalalization na-emeghachi omume na-eme ihe nkiri (dịka Methyl chloride, propyle oxide, wdg) iji mepụta cell ether. Dabere na ọnọdụ mmeghachi omume, enwere ike ịnweta ụdị dị iche iche nke mkpụrụ ndụ cellose dị iche iche.
Ịdị ọcha na ihicha
Mkpụrụ osisi ahụ sitere na mmeghachi omume ahụ dị ọcha, saa ma kpọnwụọ iji nweta ntụ ntụ ma ọ bụ ngwaahịa motur. Enwere ike iji teknụzụ nhazi ọrụ nke ikpeazụ na-achịkwa ya.
4. Ubi ngwa nke other
N'ihi akụrụngwa anụ ahụ pụrụ iche na kemịkal nke eyers, a na-ejikarị ha n'ọtụtụ ụlọ ọrụ. Udiri ngwa ngwa dị ka ndị a:
Ihe eji eme ihe
N'ime ubi ụlọ ahụ, a na-eji ndị na-eme ihe na-egbu egbu mee ihe dị ka ndị na-ejigide na mmiri mmiri maka ngwaahịa ciment na ngwaahịa gypsum. Eszọ ndị dị ka HPMC na MC nwere ike imezi arụmọrụ nke ngwa agha, belata mfu mmiri, ma si otú a kwalite ngọngọ na ndagide.
Ọgwụ
N'ime ụlọ ọrụ ọgwụ, a na-eji usoro nke ọgwụ na-eji ọtụtụ ebe niile dị ka ndị na-akwụ ụgwọ maka ọgwụ, adhesives maka mbadamba, na ihe ndị a na-achịkwa. Iji maa atụ, a na-ejikarị HPMC na-ejikarị ya ịkwadebe ọgwụ ihe nkiri ọgwụ ma nwee ezigbo ntọhapụ nke a na-achịkwa.
Nri
A na-ejikarị CMC na-ejikarị ya, emulsifier, na mmachi na ụlọ ọrụ nri. A na-ejikarị ya na ihe ọveraụ, ngwaahịa mmiri ara ehi, na ngwongwo a na-eme achịcha, ma nwee ike melite uto na moisturrings nri.
Ngwaọrụ na kemịkal kwa ụbọchị
A na-eji usoro ndị na-eme ihe dị ka ndị na-eme mkpọtụ na emulsif na kemịkal kwa ụbọchị, nke nwere ike inye ezigbo nha na ederede. Iji maa atụ, a na-ejikarị HPMC na ngwaahịa dị ka eze na nchaji na-enwe mmetụta na-adịghị mma na mmetụta nkwụsị.
Otita
N'ime ụlọ ọrụ mkpuchi mkpuchi, a na-eji usoro nke cellugul dị ka ndị na-eme ihe nkiri, na-eme ihe nkiri, nke nwere ike ịkwalite arụmọrụ nke mkpuchi nke mkpuchi, ma melite ọkwa nke ihe nkiri dị mma.
5. Mmepe mmepe nke Ether's
Na mmụba na-abawanye maka nchebe gburugburu ebe obibi, mkpụrụ osisi cell, dị ka usoro nke akụrụngwa a na-eme emelite, nwere atụmanya mmepe. Ọmụmụ ya biodegration ya, mmeghari ohuru na imeghari ya na a tụrụ anya ka a tụọ anya ka a na-eji ọtụtụ ihe na akụrụngwa akwụkwọ ndụ akwụkwọ ndụ, ihe ndị na-emebi emebi na ihe ndị dị n'ihu. Na mgbakwunye, ewer ether nwekwara nyocha ọzọ na ike mmepe nwere uru dị elu dị ka ihe sitere na injinịa na ihe ndị dị egwu na ihe ndị dị elu.
Dịka ngwaahịa kemịkal dị mkpa, cell euther nwere ọtụtụ ihe bara uru. Ya na oke mmiri, ụdị mmiri na-akpụ akpụ na ezigbo kemịkalụ, ọ na-arụ ọrụ nke na-enweghị isi n'ọtụtụ ubi dịka iwu, ọgwụ na nri. N'ọdịnihu, na-aga n'ihu na teknụzụ na-aga n'ihu na teknụzụ nke echiche nchedo gburugburu ebe obibi, atụmanya ngwa nke cellose eth ga-abawanye ụba na ị na-akwalite mmepe nke ọrụ dị iche iche.
Oge Post: Sepp-24-2024