Uiga, sauniuniga ma le faʻaogaina o le cellulose ether i pisinisi

O ituaiga, auala sauniuni, meatotino ma uiga o le cellulose ether na toe iloiloina, faʻapea foʻi ma le faʻaogaina o le cellulose ether i le suauʻu, fausiaina, fai pepa, ie, vailaʻau, meaʻai, mea e faʻaogaina ai le photoelectric ma pisinisi kemisi i aso uma. O nisi ituaiga fou o le cellulose ether derivatives faatasi ai ma faamoemoega tau atina'e sa fa'alauiloa mai ma fa'amoemoe e fa'aoga ai.

upu autu:eteru selulose; Fa'atinoga; Talosaga; O mea e maua mai i le cellulose

O le Cellulose o se ituaiga o polymer fa'alenatura. O lona fausaga kemikolo o se polysaccharide macromolecule ma le anhydrous β-glucose e fai ma mama faavae, faatasi ai ma le tasi vaega hydroxyl muamua ma lua vaega hydroxyl lua i luga o mama faavae taitasi. E ala i le fesuiaiga o vailaʻau, e mafai ona maua se faasologa o mea e maua mai i le cellulose, o le cellulose ether o se tasi oi latou. E maua le cellulose ether e ala i le tali atu o le cellulose ma le NaOH, ona etherize ai lea ma monomers galue eseese e pei o le methane chloride, ethylene oxide, propylene oxide, ma isi, e ala i le fufuluina o le masima ma le sodium cellulose. O le cellulose ether o se mea taua o le cellulose, e mafai ona faʻaaogaina lautele i vailaʻau ma le soifua maloloina, vailaʻau i aso uma, pepa, meaʻai, vailaʻau, fausiaina, meafaitino ma isi pisinisi. O le mea lea, o le atinaʻeina ma le faʻaogaina o le cellulose ether e iai sona taua lelei mo le faʻaogaina atoatoa o punaoa faʻafouina o meaola, le atinaʻeina o mea fou ma tekonolosi fou.

1. Faavasegaina ma le saunia o le cellulose ether

O le faʻavasegaina o cellulose ethers e masani ona vaevaeina i ni vaega se fa e tusa ai ma a latou meatotino ionic.

1.1 Nonionic cellulose ether

Non-ionic cellulose ether o le cellulose alkyl ether tele, o le auala sauniuni e ala i le cellulose ma le tali NaOH, ona sosoo ai lea ma le tele o monomers aoga e pei o le methane chloride, ethylene oxide, propylene oxide etherification reaction, ona fufuluina lea o le oloa. masima ma le sodium cellulose e maua. O le methyl cellulose ether autu, methyl hydroxyethyl cellulose ether, methyl hydroxypropyl cellulose ether, hydroxyethyl cellulose ether, cyanoethyl cellulose ether, hydroxybutyl cellulose eter. O lona faʻaoga e matua lautele lava.

1.2 Anionic cellulose eter

Anionic cellulose ether o le carboxymethyl cellulose sodium, carboxymethyl hydroxyethyl cellulose sodium. O le auala sauniuni e ala i le tali atu o cellulose ma NaOH, ona etherify ma monochloroacetic acid po o le ethylene oxide, propylene oxide, ona fufuluina lea o le masima e ala i-oloa ma sodium cellulose e maua.

1.3 cationic cellulose ether

Cationic cellulose ether e masani lava 3 - chlorine - 2 - hydroxypropyl trimethyl ammonium chloride cellulose eter. O le auala sauniuni e ala i le tali atu o le cellulose ma le NaOH, ona sosoo ai lea ma le cationic etherifying agent 3 - chlorine - 2 - hydroxypropyl trimethyl ammonium chloride poʻo le ethylene oxide, propylene oxide faʻatasi ma le etherifying reaction, ona fufulu lea o le masima ma le sodium. cellulose e maua.

1.4 Zwitterionic cellulose eter

Zwitterionic cellulose ether o loʻo i ai uma vaega anionic ma vaega cationic i luga o le filifili mole, o le auala sauniuni e ala i le cellulose ma le tali NaOH, ona faʻatasi ai lea ma le chloroacetic acid ma le cationic etherifying agent 3 - chlorine - 2 hydroxypropyl trimethyl ammonium chloride etherification reaction, ona fufulu lea. masima masima ma maua mai.

2.le meatotino ma uiga o le cellulose ether

2.1 Fa'aaliga Fa'aaliga

O le cellulose ether e masani ona pa'epa'e po'o susu pa'epa'e, e leai se tofo, e le o'ona, fa'atasi ai ma le suavai o le pa'u pa'u, e faigofie ona fa'asusu le susu, fa'amavae i le vai i totonu o se colloid mautu viscous manino.

2.2 Fausia ata tifaga ma pipii

O le etherification o le cellulose ether e i ai se aafiaga tele i ona meatotino, e pei o le solubility, ata tifaga gafatia, malosi sootaga ma le faapalepale masima. O le cellulose ether e maualuga le malosi o le masini, fetuutuunai, vevela vevela ma le malulu, ma e lelei le fetaui lelei ma le tele o resins ma plasticizers, e mafai ona faʻaaogaina e gaosia ai palasitika, ata tifaga, varnishes, adhesives, latex ma mea faʻapipiʻi vailaʻau.

2.3 Solubility

Methyl cellulose soluble i vai malulu, le mafai ona solu i le vai vevela, ae soluble foi i nisi solvents organic; Methyl hydroxyethyl cellulose soluble i le vai malulu, e le mafai ona solu i vai vevela ma solu faʻalaʻau. Ae a vevela le vaifofo vai o le methyl cellulose ma le methyl hydroxyethyl cellulose, o le methyl cellulose ma le methyl hydroxyethyl cellulose o le a faʻafefe i fafo. Methyl cellulose precipitated i le 45 ~ 60 ℃, ao fefiloi etherized methyl hydroxyethyl cellulose precipitated i 65 ~ 80 ℃. A pa'ū le vevela, o lo'o toe fa'amuta.

Sodium hydroxyethyl cellulose ma carboxymethyl hydroxyethyl cellulose e solu i le vai i so'o se vevela, ae e le mafai ona fa'afefe i so'o so'o (fa'atasi ai ma ni nai fa'alavelave).

2.4 Mafiafia

Cellulose ether ua solo i le vai i foliga colloidal, ma lona viscosity e faalagolago i le tikeri o le polymerization o le cellulose eter. O le fofo o loʻo i ai macromolecules o le faʻamamaina. Ona o le faʻalavelaveina o macromolecules, o le tafega o le fofo e ese mai le vai o Newtonian, ae faʻaalia se amio e fesuisuiaʻi ma le suiga o le malosi. Ona o le macromolecular structure o le cellulose ether, o le viscosity o le fofo e faʻateleina vave i le faʻateleina o le faʻatonuga ma faʻaitiitia vave i le faʻateleina o le vevela.

2.5 Fa'aleagaina

O le cellulose ether e fa'aaogaina i le vaega vai. Afai lava e iai le vai, o le a tupu aʻe siama. O le tuputupu aʻe o siama e taʻitaʻia ai le gaosiga o siama enzyme. O siama o le enzyme na faia ai le fusi o le kulukose fa'amama le fa'asusuina e le'i suia i tafatafa o le cellulose eter break ma fa'aitiitia le mamafa mole o polymer. O le mea lea, afai o se vaifofo vai o le cellulose ether e tatau ona faʻasaoina mo se taimi umi atu, e tatau ona faʻaopopo i ai se mea faʻasao, e tusa lava pe faʻaaogaina le cellulose ether antibacterial.

3.le faʻaaogaina o le cellulose ether i alamanuia

3.1 Alamanuia Suau'u

Sodium carboxymethyl cellulose e masani ona faʻaaogaina i le faʻaogaina o le suauu. E faʻaaogaina i le gaosiga o palapala e faʻateleina ai le viscosity ma faʻaitiitia ai le suavai. E mafai ona tete'e eseese soluble masima filogia ma faaleleia le fua faatatau toe faaleleia suauu.

O le sodium carboxymethyl hydroxypropyl cellulose ma le sodium carboxymethyl hydroxyethyl cellulose o se ituaiga sili atu ona lelei le viliina o le palapala ma le saunia o mea e faʻamaeʻaina ai le suavai, maualuga le pulupulu, masima masima, calcium teteʻe, malosi viscosification lelei, vevela (160 ℃). E talafeagai mo le saunia o vai fou, vai o le sami ma sua vai masima vili vai, i lalo o le mamafa o le calcium chloride e mafai ona fefiloi i le tele o densities (103 ~ 1279 / cm3) vili vai, ma faia ai se viscosity faapitoa ma filtration maualalo. gafatia, o lona viscosity ma filtration gafatia e sili atu nai lo hydroxyethyl cellulose, o se suauu gaosiga lelei faaopoopo. Sodium carboxymethyl cellulose o loʻo faʻaaogaina lautele i le faagasologa o le suauʻu faʻaaogaina o mea e maua mai i le cellulose, i le viliina o le vai, sima vai, faʻafefe vai ma faʻaleleia le gaosiga o le suauʻu o loʻo faʻaaogaina, aemaise lava i le faʻaaogaina o le suauʻu e sili atu, o le faʻaogaina autu ma le tulaueleele filtration ma viscosification.

O le hydroxyethyl cellulose e fa'aaogaina i le fa'agasologa o le viliina, fa'amae'aina ma le sima e fai ma fa'amausali palapala. Ona o le hydroxyethyl cellulose ma le sodium carboxymethyl cellulose, guar gum pe a faʻatusatusa i le lelei o le mafiafia, oneone faʻamalolo, maualuga masima masima, vevela lelei, ma le faʻaitiitia o le vai, poloka paʻu gau, uiga maualalo o totoe, ua faʻaaogaina lautele.

3.2 Alamanuia faufale ma fa'apipi'i

Fau fale ma fa'apipi'i sima admixture: sodium carboxymethyl cellulose e mafai ona fa'aaogaina e avea ma sui fa'amuta, vai fa'amauina sui, mafiafia ma fusifusia, e mafai ona fa'aaogaina e pei o le gypsum pito i lalo ma le sima lalo sima, sima ma le eleele leveling mea dispersant, vai fa'amauina sui, mafiafia. O se ituaiga o masonry faʻapitoa ma faʻapipiʻi sima faʻafefiloi mo poloka sima aerated e faia i le carboxymethyl cellulose, lea e mafai ona faʻaleleia ai le faʻaogaina, faʻatumauina o le vai ma le teteʻe o le sima ma aloese mai le taʻe ma le gaogao o le puipui poloka.

Fausia mea teuteu luga: Cao Mingqian ma isi methyl cellulose faia o se ituaiga o le siosiomaga puipuiga o mea teuteu luga o le fale, o lona faagasologa o le gaosiga e faigofie, mama, e mafai ona faaaoga mo puipui maualuga, luga o maa, e mafai foi ona faaaoga mo koluma. , teuteuga luga ole laulau. O Huang Jianping na faia i le carboxymethyl cellulose o se ituaiga o sealant tile sima, o loʻo i ai le malosi faʻapipiʻi malosi, lelei le faʻaogaina o le gafatia, e le maua ai ni taʻe ma paʻu ese, lelei le susu, lanu susulu ma felanulanuaʻi, faʻatasi ai ma le matagofie o mea teuteu.

Talosaga i coatings: Methyl cellulose ma hydroxyethyl cellulose e mafai ona faʻaaogaina e fai ma faʻamautu, mafiafia ma vai faʻapipiʻi vai mo latex coatings, e le gata i lea, e mafai foi ona faʻaaogaina e pei o le dispersant, viscosifier ma le ata fai ata mo faʻamalama sima lanu. Faʻaopoopoina o le cellulose ether ma faʻamatalaga talafeagai ma le viscosity i le latex vali e mafai ona faʻaleleia le fausiaina o le latex vali, puipuia le spatter, faʻaleleia le mautu o le teuina ma ufiufi le mana. O le fa'atauga autu i fafo atu o latex coatings, o le mea lea, e masani ona avea oloa cellulose ether ma filifiliga muamua o le latex vali mafiafia. Mo se faʻataʻitaʻiga, o le methyl hydroxyethyl cellulose ether ua suia e mafai ona faʻamauina le tulaga taʻutaʻua i le mafiafia o le latex vali ona o ona mea lelei atoatoa. Mo se faʻataʻitaʻiga, ona o le cellulose ether ei ai uiga faʻapitoa gel vevela ma solubility, teteʻe masima, teteʻe vevela, ma e iai le gaioiga talafeagai i luga o le eleele, e mafai ona faʻaaogaina e avea o se vai faʻatumauina, sui faʻamalolo, emulsifier, sui fai ata tifaga, lubricant, fusi ma teuteuga rheological. .

3.3 Alamanuia Pepa

Pepa susu faaopoopo: CMC e mafai ona faʻaaogaina e avea o se fiber dispersant ma pepa faʻaleleia, e mafai ona faʻaopopo i le pulupulu, ona o le sodium carboxymethyl cellulose ma le pulupulu ma le faʻapipiʻiina o vaega e tutusa le totogi, e mafai ona faʻateleina le tutusa o le fiber, faʻaleleia le malosi o le. pepa. I le avea ai o se faʻamalosi faʻaopoopo i totonu o le pepa, e faʻateleina ai le fesoʻotaʻiga vavalalata i le va o alava, ma e mafai ona faʻaleleia le malosi faʻamalosi, malepe, pepa tutusa ma isi faʻamatalaga faaletino. Sodium carboxymethyl cellulose e mafai foʻi ona faʻaaogaina e fai ma sui faʻapitoa i le pulupulu. I le faʻaopoopoga i lona lava tikeri sizing, e mafai foi ona faʻaaogaina e fai ma sui puipui o rosin, AKD ma isi sizing agents. Cationic cellulose ether e mafai foi ona faʻaaogaina e pei o le faʻamauina o pepa faamama fesoasoani, faʻaleleia le fua faatatau o le faʻamauina o filo lelei ma faʻatumu, e mafai foi ona faʻaaogaina e fai ma faʻamalosia pepa.

Faʻapipiʻi faʻapipiʻi: Faʻaaogaina mo le faʻapipiʻiina o le faʻapipiʻiina o pepa faʻapipiʻi faʻapipiʻi, e mafai ona suia le sisi, vaega o le latex, ina ia faigofie ona ulu le vaitusi lolomi, mata manino. E mafai foʻi ona faʻaaogaina e pei o le dispersant pigment, viscosifier ma stabilizer.

Suʻesuʻega faʻapipiʻi: Sodium carboxymethyl cellulose e mafai ona faʻaaogaina e fai ma sui faʻapipiʻi pepa, faʻaleleia le malosi o le pepa, pe a faʻatusatusa i le faʻaaogaina o le polyvinyl alcohol, fetuutuunai masoa pe a uma ona faʻateleina le malosi i luga e tusa ma le 10%, faʻaitiitia le fua. e tusa ma le 30%. Ose su'esu'ega fa'afuafua mo le fau pepa, ma o lona fa'asologa o ituaiga fou e tatau ona atina'e malosi. Cationic cellulose ether e sili atu le faʻatinoina o le faʻaogaina o luga o le eleele nai lo le cationic starch, e le gata e mafai ona faʻaleleia le malosi o le pepa, ae mafai foi ona faʻaleleia le vaitusi absorption o pepa, faʻateleina le aafiaga vali, o se sui sizing luga folafola.

3.4 Alamanuia ie

I fale gaosi oloa, cellulose ether e mafai ona faʻaaogaina e fai ma sui sizing, sui faʻavasegaina ma mea faʻafefete mo pulupulu ie.

Sizing agent: cellulose ether e pei o le sodium carboxymethyl cellulose, hydroxyethyl carboxymethyl cellulose ether, hydroxypropyl carboxymethyl cellulose ether ma isi ituaiga e mafai ona faʻaaogaina e fai ma sui sizing, ma e le faigofie ona faʻaleagaina ma faʻafefeteina, lomitusi ma vali, e aunoa ma le faʻaogaina, faʻaleleia le vali e mafai ona maua toniga. colloid i le vai.

Leveling agent: e mafai ona faʻaleleia le malosi o le hydrophilic ma le osmotic o le vali, aua e laʻititi le suiga o le viscosity, faigofie ona fetuunai le eseesega lanu; O le Cationic cellulose ether e iai fo'i le vali ma le fa'aa'ai.

Sui Mafiafia: sodium carboxymethyl cellulose, hydroxyethyl carboxymethyl cellulose eter, hydroxypropyl carboxymethyl cellulose eter e mafai ona faaaoga e avea o se lomitusi ma vali slurry thickening sui, ma toega itiiti, uiga maualuga fua o lanu, o se vasega o mea e sili ona ono mafai ona faaopoopo ie.

3.5 Alamanuia vaila'au mo aiga

Viscosifier mautu: Sodium methylcellulose i totonu o le pa'u pa'u pa'u mea mata oloa oloa ta'alo se fa'amuta fa'atumauina le mautu, i le vai po'o le emulsion cosmetics mafiafia, ta'ape, homogenizing ma isi matafaioi. E mafai ona faʻaaogaina e fai ma faʻamautu ma viscosifier.

Emulsifying stabilizer: fai suau'u, shampoo emulsifier, mafiafia sui ma fa'amautu. Sodium carboxymethyl hydroxypropyl cellulose e mafai ona faʻaaogaina e avea o se mea faʻapipiʻi faʻapipiʻi toothpaste, faʻatasi ai ma mea lelei thixotropic, ina ia lelei le faʻaogaina o le toothpaste, suiga umi, toniga ma tofo maaleale. Sodium carboxymethyl hydroxypropyl cellulose salt resistance, acid resistance e sili atu, o le aafiaga e sili mamao atu nai lo carboxymethyl cellulose, e mafai ona faʻaaogaina e pei o le fufulu i le viscosifier, palapala faʻapipiʻi puipuiga sui.

Fa'amama fa'asalalauina: I le gaosiga o mea fa'amama, o le fa'aogaina lautele o le sodium carboxymethyl cellulose e pei o le fa'amama fa'amama palapala fa'asalalauina, fa'amalo vai ma fa'asalalau.

3.6 Alamanuia tau vailaau ma taumafa

I totonu o fale talavai, hydroxypropyl carboxymethyl cellulose e mafai ona faʻaaogaina e avea ma vailaʻau faʻamalositino, faʻaaogaina lautele i le tuʻuina atu o le auivi faʻamaʻi faʻamaʻi ma sauniuniga faʻamalolo lagolago, e avea o se mea faʻasaʻo poloka e faʻatonutonu ai le tuʻuina atu o vailaʻau, e pei o mea faʻapipiʻi faʻapipiʻi faʻamalolo lagolago, pellets faʻamalolo tumau. , capsules fa'amalolo tumau. O le mea sili ona faʻaaogaina o le methyl carboxymethyl cellulose, ethyl carboxymethyl cellulose, e pei o le MC e masani ona faʻaaogaina i le gaosiga o laupepa ma capsules, poʻo le faʻapipiʻiina o pusa suka.

O le tulaga lelei o le cellulose ether e mafai ona faʻaaogaina i le gaosiga o meaʻai, i le tele o meaʻai o se vailaʻau mafiafia lelei, emulsifier, stabilizer, excipient, vai faʻamauina sui ma masini foaming agent. Methyl cellulose ma le hydroxypropyl methyl cellulose ua iloa o ni mea e le afaina ai le metabolic inert. O le mama maualuga (99.5% pe sili atu le mama) carboxymethyl cellulose e mafai ona faʻaopopo i meaʻai, e pei o susu ma kulimi oloa, mea manogi, jams, jelly, apa, sirup laulau ma meainu. O le mama o le sili atu i le 90% carboxymethyl cellulose e mafai ona faʻaaogaina i mea e faʻatatau i meaʻai, e pei o le faʻaaogaina i le felauaiga ma le teuina o fualaau aina fou, o le afifi palasitika e lelei le faʻasaoina, faʻaitiitia le faʻaleagaina, leai se faʻaleagaina, faigofie i le gaosiga o mea lelei.

3.7 Mea fa'aoga fa'apitoa ma eletise

Electrolyte thickening stabilizer: ona o le mama maualuga o le cellulose ether, tetee acid lelei, tetee masima, aemaise lava uʻamea ma mea uamea mamafa e maualalo, o lea e matua mautu le colloid, talafeagai mo le maa alkaline, zinc manganese maa electrolyte mafiafia stabilizer.

Mea tioata vai: Talu mai le 1976, o le uluai suʻesuʻega o le hydroxypropyl cellulose - vai faʻaogaina vai tioata fesili vaega, ua maua i se vaifofo talafeagai lelei, tele cellulose derivatives i le maualuga maualuga e mafai ona fausia ai se vaifofo anisotropic, mo se faataitaiga, hydroxypropyl cellulose ma lona acetate, propionate. , benzoate, phthalate, acetyxyethyl cellulose, hydroxyethyl cellulose, ma isi. I le faaopoopo atu i le faia o colloidal ionic liquid crystal solution, o nisi esters o le hydroxypropyl cellulose o loʻo faʻaalia foi lenei meatotino.

Ole tele ole cellulose ethers o lo'o fa'aalia ai mea tioata vai tioata vevela. Acetyl hydroxypropyl cellulose na fausia ai le tioata vai cholesteric thermogenic i lalo ole 164℃. Acetoacetate hydroxypropyl cellulose, trifluoroacetate hydroxypropyl cellulose, hydroxypropyl cellulose ma ona mea e maua mai ai, ethyl hydroxypropyl cellulose, trimethylsiliccellulose ma butyldimethylsiliccellulose, heptyl cellulose ma butoxylethyl cellulose, hydroxyethyl cellulose. O nisi esters cellulose e pei o le cellulose benzoate, p-methoxybenzoate ma p-methylbenzoate, cellulose heptanate e mafai ona fausia thermogenic cholesteric tioata vai.

mea insulation eletise: cyanoethyl cellulose etherifying sui mo acrylonitrile, lona maualuga dielectric tumau, maualalo gau gau, e mafai ona faaaogaina e pei o phosphorus ma electroluminescent lamepa resin matrix ma transformer insulation.

4. Saunoaga Fa'ai'u

O le fa'aaogaina o vaila'au e maua mai ai mea e maua mai i le cellulose fa'atasi ai ma galuega fa'apitoa o se auala lelei lea e su'e ai fa'aoga fou mo le cellulose, o le mea fa'alenatura sili ona tele i le lalolagi. I le avea ai o se tasi o mea e maua mai i le cellulose, cellulose ether e pei o le physiological e le afaina, e leai se filogia o le vai-soluble material polymer ona o ona meatotino sili ona lelei, ua faʻaaogaina i le tele o alamanuia, ma o le ai ai se avanoa lautele mo le atinaʻe.