Gịnị bụ Cellulose Ether?

Cellulose etherbụ ngwakọta polima nwere nhazi ether nke e ji cellulose mee. Mgbaaka glucosyl ọ bụla dị na macromolecule cellulose nwere otu hydroxyl atọ, otu hydroxyl mbụ dị na atọm carbon nke isii, otu hydroxyl nke abụọ dị na atọm carbon nke abụọ na nke atọ, a na-ejikwa otu hydrocarbon dochie hydrogen dị na otu hydroxyl iji mepụta ihe ndị sitere na cellulose ether. Ọ bụ ngwaahịa ebe a na-eji otu hydrocarbon dochie hydrogen nke otu hydroxyl dị na polima cellulose. Cellulose bụ ngwakọta polima polyhydroxy nke na-agbaze ma ọ bụ na-agbaze. Mgbe etherification gasịrị, cellulose na-agbaze na mmiri, na-agwakọta mmiri alkali na ihe mgbaze organic, ma nwee thermoplasticity.

Cellulose bụ ihe mejupụtara polyhydroxy polymer nke na-agbaze ma ọ bụ na-agbaze. Mgbe etherification gasịrị, cellulose na-agbaze na mmiri, na-agbaze mmiri alkali na ihe mgbaze organic, ma nwee thermoplasticity.

1. Ọdịdị:

Ike nke cellulose mgbe etherification gasịrị na-agbanwe nke ukwuu. Enwere ike ịgbaze ya na mmiri, belata acid, belata alkali ma ọ bụ ihe mgbaze organic. Ike nke ihe mgbaze dabere na ihe atọ: (1) Àgwà nke otu ndị e webatara na usoro etherification, ka otu ahụ buru ibu, ka mgbaze dị ala, ma sie ike polarity nke otu ewebatara, otú ahụ ka cellulose ether ga-adị mfe ịgbaze na mmiri; (2) Ogo nke nnọchi na nkesa nke otu etherified na macromolecule. Ọtụtụ cellulose ethers nwere ike ịgbaze na mmiri naanị n'okpuru oke nnọchi ụfọdụ, ogo nke nnọchi dịkwa n'etiti 0 na 3; (3) Ogo nke polymerization nke cellulose ether, ka ogo polymerization dị elu, ka obere mgbaze na-adịghị agbaze; Ka ogo nnọchi nke enwere ike ịgbaze na mmiri dị ala, otú ahụ ka oke ya si obosara. E nwere ọtụtụ ụdị cellulose ethers nwere arụmọrụ dị mma, a na-ejikwa ha nke ukwuu na owuwu, simenti, mmanụ ala, nri, ákwà, ncha, agba, ọgwụ, ime akwụkwọ na ihe eletrọnịkị na ụlọ ọrụ ndị ọzọ.

2. Mepụta:

China bụ mba kachasị emepụta ma jiri cellulose ether eme ihe n'ụwa, nke na-eto nke ọma kwa afọ karịa 20%. Dịka ọnụ ọgụgụ mbụ si kwuo, e nwere ihe dị ka ụlọ ọrụ mmepụta cellulose ether iri ise na China, ikike mmepụta nke ụlọ ọrụ cellulose ether emepụtara agafeela tọn 400,000, e nwekwara ihe dị ka ụlọ ọrụ iri abụọ nwere ihe karịrị tọn 10,000, nke a na-ekesakarị na Shandong, Hebei, Chongqing na Jiangsu, Zhejiang, Shanghai na ebe ndị ọzọ.

3. Mkpa:

Na 2011, ikike mmepụta CMC nke China ruru ihe dị ka tọn 300,000. Ka ọchịchọ na-eto eto maka cellulose ethers dị elu na ụlọ ọrụ dịka ọgwụ, nri, na kemịkalụ kwa ụbọchị, ọchịchọ ime obodo maka ngwaahịa cellulose ether ndị ọzọ na-abụghị CMC na-abawanye. , ikike mmepụta nke MC/HPMC dị ihe dị ka tọn 120,000, nke HEC dịkwa ihe dị ka tọn 20,000. PAC ka nọ n'ọkwa nkwalite na itinye n'ọrụ na China. Site na mmepe nke nnukwu ubi mmanụ dị n'ụsọ oké osimiri na mmepe nke ihe owuwu ụlọ, nri, kemịkalụ na ụlọ ọrụ ndị ọzọ, ọnụọgụ na ubi nke PAC na-abawanye ma na-agbasa kwa afọ, yana ikike mmepụta ihe karịrị tọn 10,000.

4. Nhazi:

Dịka nhazi kemịkalụ nke ihe ndị na-anọchi ya si dị, enwere ike kewaa ha n'ime anionic, cationic na nonionic ethers. Dabere na ihe etherification ejiri mee ihe, e nwere methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose cellulose, cyanoethyl cellulose, benzyl cyanoethyl cellulose, carboxymethyl hydroxyethyl cellulose na phenyl cellulose, wdg. Methyl cellulose na ethyl cellulose bara uru karịa.

Methylcellulose:

Mgbe ejiri alkali gwọọ owu a nụchara anụcha, a na-emepụta cellulose ether site na usoro mmeghachi omume na methane chloride dị ka ihe na-eme ka etherification dị. N'ozuzu, ogo nke nnọchi bụ 1.6~2.0, ihe na-agbazekwa dịkwa iche na ọkwa dị iche iche nke nnọchi. Ọ bụ nke cellulose ether na-abụghị ionic.

(1) Methylcellulose na-agbaze n'ime mmiri oyi, ọ ga-esikwa ike ịgbaze n'ime mmiri ọkụ. Mmiri ya na-agbaze nke ọma na pH = 3 ~ 12. Ọ na-adaba nke ọma na starch, guar gum, wdg. na ọtụtụ surfactants. Mgbe okpomọkụ ruru okpomọkụ gelation, gelation na-eme.

(2) Njide mmiri nke methyl cellulose dabere na ọnụọgụ mgbakwunye ya, viscosity, nha ihe dị n'ime ya na ọnụego mgbaze ya. N'ozuzu, ọ bụrụ na ọnụọgụ mgbakwunye buru ibu, ịdị mma ya pere mpe, viscosity ya buru ibu, ọnụego nchekwa mmiri dị elu. N'ime ha, ọnụọgụ mgbakwunye ahụ nwere mmetụta kachasị ukwuu na ọnụego nchekwa mmiri, ọkwa viscosity adịghịkwa nhata kpọmkwem na ọkwa nchekwa mmiri. Ọnụego mgbaze dabere na oke mgbanwe elu nke ihe ndị dị n'ime ya na ịdị mma nke ihe dị n'ime ya. N'ime ihe ndị dị n'ime cellulose, methyl cellulose na hydroxypropyl methyl cellulose nwere ọnụego nchekwa mmiri dị elu.

(3) Mgbanwe na okpomọkụ nwere ike imetụta njide mmiri nke methyl cellulose. N'ozuzu, ka okpomọkụ dị elu, otú ahụ ka njide mmiri si ka njọ. Ọ bụrụ na okpomọkụ moto gafere 40°C, njide mmiri nke methyl cellulose ga-ebelata nke ukwuu, nke na-emetụta nnukwu nrụpụta moto ahụ.

(4)Methyl cellulosenwere mmetụta dị ukwuu n'otú e si arụ ọrụ na otú e si ejikọta ụrọ. "Nraranye" ebe a na-ezo aka n'ike njikọ dị n'etiti ngwa ọrụ onye ọrụ na ihe mkpuchi mgbidi, ya bụ, iguzogide nkedo nke ụrọ. Nraranye dị elu, nguzogide nkedo nke ụrọ buru ibu, ike ndị ọrụ chọrọ n'oge a na-eji ya dịkwa ukwuu, arụmọrụ owuwu nke ụrọ ahụ adịghịkwa mma. Njikọta nke methyl cellulose dị n'ọkwa dị ala na ngwaahịa cellulose ether.

Hydroxypropylmethylcellulose:

Hydroxypropyl methylcellulose bụ ụdị cellulose nke mmepụta na oriri ya na-amụba ngwa ngwa. Ọ bụ ngwakọta nke cellulose na-abụghị ionic nke e ji owu a nụchara anụcha mee mgbe alkalization gasịrị, na-eji propylene oxide na methyl chloride dị ka ihe na-eme ka etherification dị, site na usoro mmeghachi omume. Ogo nke nnọchi na-abụkarị 1.2~2.0. Àgwà ya dị iche iche dabere na oke nke ọdịnaya methoxyl na ọdịnaya hydroxypropyl.

(1) Hydroxypropyl methylcellulose na-agbaze ngwa ngwa na mmiri oyi, ọ ga-enwekwa nsogbu mgbe ọ na-agbaze na mmiri ọkụ. Mana okpomọkụ ya na-agbaze na mmiri ọkụ dị elu karịa nke methyl cellulose. A na-emekwa ka mmiri oyi na-agbaze nke ọma ma e jiri ya tụnyere methyl cellulose.

(2) Ọbara hydroxypropyl methylcellulose na-ejikọta ya na ibu molekul ya, ka ibu molekul ahụ na-ebu ibu, otú ahụ ka viscosity ahụ na-abawanye. Okpomọkụ na-emetụtakwa viscosity ya, ka okpomọkụ na-abawanye, viscosity na-ebelata. Agbanyeghị, mmetụta nke viscosity na okpomọkụ ya dị ala karịa nke methyl cellulose. Mmiri ya na-adịgide adịgide mgbe echekwara ya na okpomọkụ ụlọ.

(3) Njide mmiri nke hydroxypropyl methylcellulose dabere na ọnụọgụ mgbakwunye ya, viscosity, wdg, na ọnụego njigide mmiri ya n'okpuru otu ọnụọgụ mgbakwunye ahụ dị elu karịa nke methyl cellulose.

(4)Hydroxypropyl methylcelluloseọ kwụsiri ike na acid na alkali, mmiri mmiri ya dịkwa oke mma n'etiti pH = 2 ~ 12. Caustic soda na mmiri lime anaghị enwe mmetụta dị ukwuu na arụmọrụ ya, mana alkali nwere ike ime ka ọ gbazee ngwa ngwa ma mee ka ọ dịkwuo mma. Hydroxypropyl methylcellulose na-adịgide adịgide nye nnu nkịtị, mana mgbe njupụta nke mmiri nnu dị elu, viscosity nke mmiri hydroxypropyl methylcellulose na-abawanye.

(5) Enwere ike ịgwakọta Hydroxypropyl methylcellulose na ngwakọta polima mmiri na-agbaze iji mepụta ngwọta viscosity dị otu ma dị elu. Dịka polyvinyl alcohol, starch ether, chịngọm akwụkwọ nri, wdg.

(6) Hydroxypropyl methylcellulose nwere ike iguzogide enzyme karịa methylcellulose, ọ dịghịkwa ka enzymes ga-emebi mmiri ya karịa methylcellulose.

(7) Nrapado nke hydroxypropyl methylcellulose na ihe owuwu ngwa agha dị elu karịa nke methylcellulose.

Cellulose Hydroxyethyl:

A na-eji owu a gwakọtara agwakọta nke e ji alkali mee ya, a na-ejikwa ethylene oxide emeghachi omume dị ka ihe na-eme ka etherification dị na ya ma ọ bụrụ na isopropanol dị. Ọkwa nnọchi ya na-abụkarị 1.5-2.0. Ọ nwere hydrophilicity siri ike ma dịkwa mfe ịmịkọrọ mmiri.

(1) A na-agbaze Hydroxyethyl cellulose na mmiri oyi, mana ọ na-esiri ike ịgbaze na mmiri ọkụ. Mmiri ya na-adịgide adịgide na okpomọkụ dị elu na-enweghị gelling. Enwere ike iji ya ruo ogologo oge n'okpuru okpomọkụ dị elu na moto, mana mmiri ya dị ala karịa nke methyl cellulose.

(2) Hydroxyethyl cellulose na-adịgide adịgide site na asịd na alkali, alkali nwekwara ike ime ka ọ gbazee ngwa ngwa ma mee ka ọ dịkwuo mma. Ọ na-agbaze n'ime mmiri dịtụ njọ karịa nke methyl cellulose na hydroxypropyl methyl cellulose.

(3) Hydroxyethyl cellulose nwere ezigbo ọrụ mgbochi sag maka ngwa agha, mana ọ na-ewe oge dị ogologo maka simenti.

(4) Arụmọrụ nke hydroxyethyl cellulose nke ụfọdụ ụlọ ọrụ obodo na-emepụta doro anya dị ala karịa nke methyl cellulose n'ihi nnukwu mmiri na oke ntụ ya.

(5) Mbufụt nke mmiri mmiri nke hydroxyethyl cellulose dị oke njọ. N'ọnọdụ okpomọkụ dị ihe dị ka 40°C, mildew nwere ike ịpụta n'ime ụbọchị 3 ruo 5, nke ga-emetụta arụmọrụ ya.

Cellulose Carboxymethyl:

A na-eji eriri eke (owu, wdg) eme Lonic cellulose ether mgbe a gwọchara ya, jiri sodium monochloroacetate dị ka ihe na-eme ka etherification dị na ya, a na-ejikwa ya eme usoro ọgwụgwọ mmeghachi omume. Oke nke nnọchi ahụ na-abụkarị 0.4 ~ 1.4, ọkwa nke nnọchi ahụ na-emetụtakwa arụmọrụ ya nke ukwuu.

(1) Carboxymethyl cellulose na-eme ka mmiri dị ọcha karịa, ọ ga-enwekwa mmiri karịa mgbe echekwara ya n'ọnọdụ nkịtị.

(2) Mmiri mmiri nke Carboxymethyl cellulose anaghị emepụta jel, oke ahụ na-ebelata ka okpomọkụ na-arị elu. Mgbe okpomọkụ gafere 50°C, oke ahụ agaghị agbanwe agbanwe.

(3) Ọkwa pH na-emetụta nkwụsi ike ya nke ukwuu. N'ozuzu, enwere ike iji ya na gypsum, mana ọ bụghị na stọm nke e ji simenti mee. Ọ bụrụ na ọ dị oke alkaline, ọ ga-efunahụ viscosity.

(4) Mmiri ọ na-ejide dị ala karịa methyl cellulose. Ọ na-ebelata ike ya na gypsum ma na-ebelata ike ya. Agbanyeghị, ọnụ ahịa carboxymethyl cellulose dị ala nke ukwuu karịa nke methyl cellulose.

Cellulose Alkyl Ether:

Ndị nnọchite anya ha bụ methyl cellulose na ethyl cellulose. N'ime mmepụta ụlọ ọrụ mmepụta ihe, a na-ejikarị methyl chloride ma ọ bụ ethyl chloride eme ihe dị ka ihe na-eme ka etherification pụta, mmeghachi omume ya dịkwa ka ndị a:

N'ime usoro ahụ, R na-anọchi anya CH3 ma ọ bụ C2H5. Ọ bụghị naanị na oke alkaline na-emetụta oke etherification, kamakwa ọ na-emetụta oriri nke alkyl halides. Ka oke alkali dị ala, otú ahụ ka hydrolysis nke alkyl halide sikwuo ike. Iji belata oriri nke ihe na-eme ka etherifying dị elu, a ga-amụba oke alkali. Agbanyeghị, mgbe oke alkali dị oke elu, mmetụta ọzịza nke cellulose na-ebelata, nke na-adịghị mma maka mmeghachi omume etherification, ya mere, a na-ebelata oke etherification. Maka ebumnuche a, enwere ike itinye lye ma ọ bụ lye siri ike n'oge mmeghachi omume ahụ. Reactor kwesịrị inwe ngwaọrụ na-akpali akpali ma na-adọwa nke ọma ka e wee kesaa alkali ahụ n'otu aka ahụ. A na-eji methyl cellulose eme ihe dị ka ihe na-eme ka ihe sie ike, ihe na-arapara na ihe na-echebe colloid wdg. Enwere ike iji ya dị ka ihe na-agbasa ihe maka ime ka emulsion polymerization dị, ihe na-agbasa ihe maka mkpụrụ, ihe na-eme ka ákwà dị nro, ihe mgbakwunye maka nri na ihe ịchọ mma, ihe na-eme ka ahụ dị mma, ihe mkpuchi ọgwụ, ma jiri ya na agba latex, ink mbipụta, mmepụta seramiiki, ma gwakọta ya na simenti. A na-eji ya achịkwa oge ntọala ma mee ka ike mbụ dịkwuo elu, wdg. Ngwaahịa ethyl cellulose nwere ike dị elu, mgbanwe, iguzogide okpomọkụ na iguzogide oyi. ethyl cellulose nke nwere obere mgbanwe na-agbaze na mmiri ma na-agwakọta ngwọta alkaline, ngwaahịa ndị nwere nnukwu mgbanwe na-agbaze na ọtụtụ ihe mgbaze organic. Ọ nwere ezigbo ndakọrịta na resins na plasticizers dị iche iche. Enwere ike iji ya mee plastik, ihe nkiri, varnish, ihe nrapado, ihe mkpuchi latex na ihe mkpuchi maka ọgwụ, wdg. Ntinye nke otu hydroxyalkyl n'ime cellulose alkyl ethers nwere ike ime ka ọ na-agbaze nke ọma, belata mmetụta ya na nnu, mee ka okpomọkụ gelation dịkwuo elu ma melite njirimara agbaze ọkụ, wdg. Ogo mgbanwe na ihe ndị dị n'elu dịgasị iche dabere na ọdịdị nke ihe ndị na-anọchi ya na oke nke otu alkyl na hydroxyalkyl.

Cellulose Hydrokyalkyl Ether:

Ndị nnọchite anya ha bụ hydroxyethyl cellulose na hydroxypropyl cellulose. Ihe ndị na-eme ka etherifying bụ epoxides dịka ethylene oxide na propylene oxide. Jiri acid ma ọ bụ base dị ka ihe na-akpali akpali. Mmepụta ụlọ ọrụ bụ imeghachi omume na alkali cellulose site na iji ihe na-eme ka etherification rụọ ọrụ:hydroxyethyl celluloseỌ bụrụ na e nwere nnukwu uru nnọchi, ọ na-agbaze ma na mmiri oyi ma na mmiri ọkụ. Hydroxypropyl cellulose nwere nnukwu uru nnọchi, a na-agbaze naanị na mmiri oyi mana ọ bụghị na mmiri ọkụ. Enwere ike iji Hydroxyethyl cellulose dị ka ihe na-eme ka ihe mkpuchi latex, mbipụta ákwà na ihe e ji agba agba, ihe ndị e ji nha akwụkwọ, ihe nrapado na ihe nchebe colloids. Ojiji nke hydroxypropyl cellulose yiri nke hydroxyethyl cellulose. Enwere ike iji Hydroxypropyl cellulose nwere obere uru nnọchi dị ka ihe na-enye ọgwụ, nke nwere ike inwe ma ihe njikọ ma ihe na-agbawa agbawa.

Carboxymethyl cellulose, nke bụ okwu Bekee CMC, na-adịkarị n'ụdị nnu sodium. Ihe na-eme ka etherifying ahụ dị bụ monochloroacetic acid, mmeghachi omume ya dịkwa ka ndị a:

Carboxymethyl cellulose bụ cellulose ether nke a na-agbaze n'ime mmiri nke a na-ejikarị eme ihe. N'oge gara aga, a na-ejikarị ya eme ihe dị ka apịtị a na-egwupụta ihe, mana ugbu a, a na-eji ya eme ihe dị ka ihe mgbakwunye nke nchacha ákwà, ihe mkpuchi uwe, agba latex, ihe mkpuchi nke katọn na akwụkwọ, wdg. Enwere ike iji carboxymethyl cellulose dị ọcha mee ihe na nri, ọgwụ, ihe ịchọ mma, yana ihe nrapado maka seramiiki na ebu.

Polyanionic cellulose (PAC) bụ ionic cellulose ether ma bụrụkwa ngwaahịa nnọchi anya dị elu maka carboxymethyl cellulose (CMC). Ọ bụ ntụ ntụ ọcha, ọcha ma ọ bụ ntakịrị odo odo, ọ naghị egbu egbu, enweghị ụtọ, ọ dị mfe ịgbaze na mmiri iji mepụta ngwọta doro anya nke nwere viscosity ụfọdụ, ọ nwere nkwụsi ike iguzogide okpomọkụ na iguzogide nnu, yana ihe ndị na-egbu nje bacteria siri ike. Ọ naghị enwe mildew na mmebi. O nwere njirimara nke ịdị ọcha dị elu, oke nnọchi, na nkesa otu nke ihe ndị na-anọchi ya. Enwere ike iji ya dị ka ihe na-ejikọ, ihe na-eme ka ihe dị arọ, ihe na-agbanwe rheology, ihe na-ebelata mfu mmiri, ihe na-eme ka ihe kwụsie ike, wdg. A na-eji Polyanionic cellulose (PAC) eme ihe n'ọtụtụ ụlọ ọrụ ebe enwere ike itinye CMC, nke nwere ike ibelata oke dose ahụ, mee ka ojiji dị mfe, nye nkwụsi ike ka mma ma mezuo ihe achọrọ maka usoro dị elu.

Cyanoethyl cellulose bụ ihe mmeghachi omume nke cellulose na acrylonitrile n'okpuru catalysis nke alkali.

Cyanoethyl cellulose nwere nnukwu dielectric constant na obere loss coefficient, enwere ike iji ya dị ka resin matrix maka phosphor na electroluminescent lamps. Enwere ike iji cyanoethyl cellulose nke nwere obere nnọchi dị ka akwụkwọ mkpuchi maka transformers.

E kwadebela ethers, alkenyl ethers, na ethers na-esi ísì ụtọ nke cellulose, mana ejibeghị ha eme ihe n'ọrụ.

Enwere ike kewaa ụzọ nkwadebe nke cellulose ether n'ime usoro mmiri, usoro mgbaze, usoro ịcha ọka, usoro slurry, usoro gas-solid, usoro mmiri mmiri na njikọta nke ụzọ ndị dị n'elu.

5. Ụkpụrụ nkwadebe:

A na-etinye ihe ngwọta alkaline n'ime pulp α-cellulose dị elu ka ọ gbasaa iji bibie njikọ hydrogen ndị ọzọ, mee ka mgbasa nke ihe ndị na-emepụta ihe dịkwuo mfe ma mepụta alkali cellulose, wee meghachi omume na ihe na-emepụta etherification iji nweta cellulose ether. Ihe ndị na-emepụta etherifying gụnyere hydrocarbon halides (ma ọ bụ sulfates), epoxides, na α na β unsaturated compounds nwere electron acceptors.

6. Arụmọrụ bụ isi:

Ngwakọta ihe ndị e ji mee ihe na-arụ ọrụ dị mkpa n'ịkwalite arụmọrụ nke iwu ụlọ ngwakọta ihe ndị a kpọrọ nkụ, ma na-akpata ihe karịrị 40% nke ọnụ ahịa ihe ndị e ji mee ihe na ngwa ngwakọta ihe ndị a kpọrọ nkụ. Ndị na-emepụta ihe si mba ọzọ na-enye nnukwu akụkụ nke ngwakọta ihe ndị a na-eme n'ahịa ime obodo, onye na-ebubata ihe na-enyekwakwa usoro ntụaka nke ngwaahịa ahụ. N'ihi ya, ọnụ ahịa nke ngwaahịa ngwa ngwakọta ihe ndị a kpọrọ nkụ ka dị elu, ọ na-esikwa ike ime ka ngwa nchara na ngwa nkedo ihe ndị a na-eme n'ọtụtụ buru ibu na ọtụtụ ihe dị iche iche mara mma. Ụlọ ọrụ mba ọzọ na-achịkwa ngwaahịa ndị dị elu na ahịa, ndị na-emepụta ngwa ngwakọta ihe ndị a kpọrọ nkụ na-enwekwa obere uru na ọnụ ahịa adịghị mma; ojiji nke ngwa ngwakọta enweghị nyocha usoro na nke ezubere iche, ma na-agbaso usoro mba ọzọ n'enweghị isi.

Ihe na-eme ka mmiri dịgide bụ ihe dị mkpa iji mee ka mmiri dịgide nke ihe na-eme ka mmiri dịgide nke ihe na-eme ka mmiri dịgide nke ọma, ọ bụkwa otu n'ime ihe ndị dị mkpa iji chọpụta ọnụ ahịa ihe na-eme ka mmiri dịgide nke ihe na-eme ka mmiri dịgide nke ọma. Isi ọrụ nke cellulose ether bụ idobe mmiri.

Cellulose ether bụ okwu izugbe maka usoro ngwaahịa ndị mmeghachi omume nke alkali cellulose na ihe na-eme ka ihe dị n'ime mmiri pụta n'okpuru ọnọdụ ụfọdụ. A na-eji ihe dị iche iche na-eme ka ihe dị n'ime mmiri dochie alkaline cellulose iji nweta cellulose ethers dị iche iche. Dịka ihe ndị na-eme ka ihe dị n'ime mmiri si dị, enwere ike kewaa cellulose ethers n'ime ụdị abụọ: ionic (dị ka carboxymethyl cellulose) na nonionic (dị ka methyl cellulose). Dịka ụdị ihe dị n'ime mmiri si dị, enwere ike kewaa cellulose ether n'ime monoether (dị ka methyl cellulose) na agwakọta ether (dị ka hydroxypropyl methyl cellulose). Dịka ihe dị iche iche si dị, enwere ike kewaa ya n'ime ihe dị n'ime mmiri (dị ka hydroxyethyl cellulose) na ihe dị n'ime mmiri (dị ka ethyl cellulose). Ngwakọta akọrọ bụ cellulose na-agbaze mmiri, a na-ekewa cellulose na-agbaze mmiri n'ime ụdị ozugbo na ụdị ihe dị n'elu nke a gwọrọ n'oge.

Usoro ọrụ nke cellulose ether na ngwa agha bụ dị ka ndị a:

(1) Mgbecellulose etherA na-agbaze n'ime ite ahụ n'ime mmiri, a na-ahụ na e kesara ihe simenti dị irè ma dịkwa otu n'ime sistemu ahụ n'ihi ọrụ elu ya, cellulose ether, dị ka ihe nchebe colloid, "na-ekechi" ihe ndị siri ike ma a na-emepụta oyi akwa nke ihe nkiri na-eme ka mmanụ dị n'elu mpụta ya, nke na-eme ka sistemụ ite ahụ kwụsie ike, ma na-emekwa ka mmiri nke ite ahụ dịkwuo mma n'oge usoro ngwakọta na ịdị ire ụtọ nke owuwu ahụ.

(2) N'ihi nhazi molekul ya, ihe ngwọta cellulose ether na-eme ka mmiri dị n'ime mortar ahụ ghara ịdị mfe ịlafu, ma jiri nwayọ na-ahapụ ya ka o ruo ogologo oge, na-enye mortar ahụ ezigbo nchekwa mmiri na ikike ịrụ ọrụ.