Mkpụrụ osisi ether dị mkpa bụ ihe dị mkpa ụlọ ihe dị mkpa, a na-eji ntụ ntụ, ntụ ntụ, mkpuchi na ngwaahịa ndị ọzọ iji meziwanye ihe ndị ọzọ na ngwaahịa a. Isi ihe nke cellulose nke cellulose nke sellulose gosipụtara site na ngbanwe kemịkalụ, nke na-enye ya solubality, na-eme ka ọ bụrụ ihe na-adịghị mma, ebe nchekwa mmiri na ihe ndị na-adịghị mma.
1. Ihe nkiti
Cellulose bụ otu n'ime polisaccharides kachasị na okike, nke sitere na eriri ahịhịa. Ọ bụ core akụrụngwa nke cellulose eather ma na-ekpebi ihe nhazi ya na akụrụngwa ya. MoluLose Molecules mejupụtara ihe ubi glucose nke ejikọtara site-1,4-glycosididic agbụ iji mepụta ogologo yin. Ihe owuwu a liear na-enye elu elu elu na ibu oke egwu, ma onye isi ya na mmiri adịghị mma. Iji meziwanye mmiri nke cellulose ma kwekọọ na mkpa nke ụlọ, cellulose kwesịrị ka agbanwee.
2. Ndị nọchiri anya-ihe dị mkpa nke mmeghachi omume
Ngwongwo pụrụ iche cellulose eather bụ tumadi ga-ebuli site na mmeghachi omume e mezuru n'etiti mmeghachi omume nke hydroxyl (-Ov) nke cellulose na ogige. Ndị mmadụ jikota gụnyere metoxy (-Och₃), ethoxy (-OC₂h₅) na hydroxypyl (-ch₂chohch). Okwu mmeghe nke ndi eji eme ihe na agbanweghari soludity, ndi na - eme ihe na udu mmiri nke cellulose. Dabere na ndị dị iche iche ewepụtara, enwere ike ikewa exugul, a ga-ekewa eyers mkpụrụ osisi n'ime methyl cellulose (mc), hydroxyyl methyl methyl cellulose (hpmc) na ụdị ndị ọzọ.
Methyl cellulose (Mc): methy cellulose na-guzobe site na iwebata ndi methyl) n'ime ìgwè hydroxy na molulu. Nke a cellet nwere ezigbo mmiri solubility na ihe dị iche iche ma a na-eji ọtụtụ ebe akọrọ akọrọ. Mc nwere njigide mmiri kachasị mma ma na-enyere aka belata mfu mmiri na akụrụngwa ụlọ, na-enyere nordesion na ike nke ngwa agha na pulty ntụ.
Hydroxyethythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythy na celdrosethyl hydroxyethyl (-OC₂h₅), nke na-eme ka ọ bụrụ na mmiri na nnu na-eguzogide. A na-ejikarị hec na mkpuchi nke mmiri, ụbọchị mbubreyo na ihe mgbakwunye ụlọ. Ọ nwere ihe dị mma na-akpụ akpụ na ihe nkiri na-akpụ akpụ ma nwee ike ime ka arụmọrụ akụrụngwa dị mma.
Hydroxypyl Methylcelllose (hpdcylthylthylthylthylthyl methylcellose na-kpụọ site na mmeghe nke hydroxyl (-ch₂rohch) na methlch₃) na methy. Typedị ụdị mkpụrụ osisi ahụ na-egosi magburu onwe ya mmiri mmiri na-ewu ewu dị ka ngwa ngwa akpọnwụ, na sistemụ Mgbidi Mgbidi. HPMC nwekwara ezigbo nguzogide elu okpomọkụ ma na-eguzogide ọnọdụ, yabụ na ọ ga - eme ka arụmọrụ nke ụlọ dị n'okpuru oke ikuku.
3. Mmiri solubility na ndi ozo
Mmiri na-adabere na ụdị na ogo na ogo nke dochie ihe eji dochie anya (ya bụ, ọnụ ọgụgụ nke otu hydroxy na -eche ya na glucose nke ọ bụla. Ogo kwesịrị ekwesị nke nbanye na - eme ka mkpụrụ osisi cellulose mepụta usoro na mmiri, na - enye ezigbo anụ ahụ. N'ime ụlọ ihe, eyers cellulase dị ka ndị dị omimi nwere ike ịbawanye viscosise nke ngwa agha, gbochie stratification na ọnọdụ nke ihe, ma si otú ahụ melite ọrụ owuwu.
4. Njide mmiri
Ndochi mmiri nke celhulose ether dị oke mkpa maka ogo ụlọ. Na ngwaahịa dị ka okwute na ntụ ntụ, cellulose e nwere ike itolite na ihe nkiri mmiri dị n'elu ihe a iji gbochie mmiri site na ịpụpụ oge na arụmọrụ nke ihe ahụ. Nke a na-arụ ọrụ dị mkpa na imeziwanye ike na igbochi ịgbaji.
5. Rhiology na arụmọrụ owuwu
Ihe mgbakwunye nke cellose nke dị mma nke ukwuu na-eme ka ihe ndị na-enye ihe na-arụ ọrụ, ya bụ, na-asọpụta na nrụrụ nke ihe n'okpuru ndị agha mpụga. Ọ nwere ike melite njigide mmiri na oke nke ngwa agha, na-abawanye na ịdị mfe nke iwu ihe onwunwe. N'ọmụmụ ihe owuwu dị ka spraying, scraping na masonry, cellulose ether na-enyere aka belata arụmọrụ ọrụ, mgbe ị na-ahụ mkpuchi edo edo na-enweghị nsị.
6. Ngụkọta na nchekwa gburugburu ebe obibi
Mkpụrụ osisi eite nwere ezigbo ihe eji arụ ụlọ, gụnyere ciment, gypsum, lime, wdg. Na mgbakwunye, mkpụrụ ndụ na-acha akwụkwọ ndụ akwụkwọ ndụ na gburugburu ebe obibi, nke a na-enweta site na eriri ahịhịa ndụ, na-adịghị emerụ ahụ gburugburu ebe obibi ihe eji eme ihe.
7. Ihe ndị ọzọ na-agbanwe agbanwe
Iji meziwanye arụmọrụ arụmọrụ nke eather, enwere ike ịmepụta ihe ndị ọzọ gbanwetụrụ na imepụta ya. Iji maa atụ, ụfọdụ ndị nrụpụta ga-eme ka mmiri guzosie mmiri na udu mmiri nke cellulose eat site na iji silicone, paraffin na ihe ndị ọzọ. Ihe mgbakwunye na ihe ndị a gbanwetụrụ na-abụkarị iji zute ihe ụfọdụ achọrọ, dị ka ịbawanye mgbochi ihe na-egbochi mgbochi ma ọ bụ ngwa agha mmiri.
Dị ka akụrụngwa dị mkpa na akụrụngwa, cell ether nwere ọtụtụ akụrụngwa, gụnyere oke mmiri, ma na-ejikwa mmiri mee ka mma. Ihe ndị bụ isi bụ ihe dị mkpa cellulose na ndị edoro gosipụtara mmeghachi omume nke mmeghachi omume. Auttersdị ndị dị iche iche nke Ethers nwere ngwa dị iche iche na arụ ọrụ iji rụọ ọrụ n'ihi ọdịiche dị na ya. Eutters cellers enweghị ike ọ bụghị naanị imezi arụmọrụ nke ihe, kamakwa melite ogo zuru oke na ndụ ọrụ nke ụlọ. Ya mere, akpụrụ mkpụrụ osisi cellousul nwere atụmanya ngwa dị na ihe nke ụlọ ọgbara ọhụrụ.
Oge Post: Sepp-18-2024