Vaaiga lautele
O le cellulose ose polymer fa'anatura e fausia i iunite β-glucose anhydrous, ma e tolu vaega o le hydroxyl i luga o mama fa'avae ta'itasi.E ala i le suia o le cellulose, e mafai ona gaosia le tele o mea e maua mai i le cellulose, ma o se tasi o ia mea o le cellulose ether.Cellulose ether o se polymer compound ma se fausaga ether e maua mai le cellulose, e aofia ai le methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, ma isi.O nei mea e maua mai e masani lava ona gaosia e ala i le taliina o le cellulose alkali ma le monochloroalkane, ethylene oxide, propylene oxide, poʻo le monochloroacetic acid.O le taunuuga o le cellulose ether e sili ona lelei le solubility o le vai, mafiafia gafatia, ma ata-fausia meatotino, ma e masani ona faʻaaogaina i alamanuia e pei o le fausiaina, vailaʻau, meaʻai, ma mea teuteu.O le cellulose ether o se mea e mafai ona fa'afouina, biodegradable, ma e le o'ona, ma avea ai ma sui lauiloa i polymers synthetic.
Fa'atinoga ma Fa'aaliga
1. Fa'aaliga Fa'aaliga
O le cellulose eter o se pa'epa'e, e leai se manogi, fibrous pa'u e faigofie ona mitiia le susu ma fausia ai se koloid mautu, viscous, manino pe a fa'amavae i le vai.
2. Fausia Ata Ata ma Pi'imau
O le fesuiaiga o vailaʻau o le cellulose e maua ai le cellulose ether e matua aʻafia ai ona meatotino, e aofia ai lona solubility, ata-fausia gafatia, malosi fusi, ma le masima tetee.O nei uiga e avea ai le cellulose ether o se polymer e sili ona manaʻomia ma sili atu le malosi faʻainisinia, fetuutuunai, vevela vevela, ma le malulu.E le gata i lea, o loʻo faʻaalia ai le fetaui lelei ma resini eseese ma mea faʻapipiʻi, e talafeagai mo le faʻaogaina i le gaosiga o palasitika, ata tifaga, varnishes, faʻapipiʻi, latex, ma mea faʻapipiʻi vailaʻau.Ona o ana mea faʻapitoa, o le cellulose ether ua avea ma mea taua i le gaosiga o gaosiga, faʻaleleia atili le faʻatinoga, faʻamautu, ma le tumau i le tele o oloa.O le iʻuga, o loʻo i ai le lautele o faʻaoga i vaega eseese, e aofia ai vailaʻau, faʻapipiʻi, ie, faufale, ma fale gaosi meaʻai, ma isi.
3. Solubility
O le solubility o cellulose ethers e pei o le methylcellulose, methyl hydroxyethyl cellulose, hydroxyethyl cellulose, ma le sodium carboxymethyl hydroxyethyl cellulose e eseese e faalagolago i le vevela ma le solvent na faʻaaogaina.Methylcellulose ma le methyl hydroxyethyl cellulose e solu i le vai malulu ma nisi solvents organic ae faʻafefe pe a vevela, ma methylcellulose precipitating i le 45-60°C ma le etherified etherified methyl hydroxyethyl cellulose i le 65-80°C.Ae ui i lea, e mafai ona toe faʻafefeteina pe a faʻaititia le vevela.I le isi itu, o le hydroxyethyl cellulose ma le sodium carboxymethyl hydroxyethyl cellulose e mafai ona solu i le vai i soʻo se vevela ae e le mafai ona faʻafefe i soʻo.O nei cellulose ethers e ese le solubility ma le timuga o mea e talafeagai mo faʻaoga eseese i alamanuia e pei o palasitika, ata tifaga, ufiufi, ma faʻapipiʻi.
4. Mafiafia
Pe a solo le cellulose ether i le vai, e fausia ai se vaifofo colloidal o lona viscosity e aafia i le tikeri o le polymerization o le cellulose eter.O le vaifofo o lo'o i ai ni macromolecules fa'amama e fa'aalia ai amioga e le o ni Newtonian, o lona uiga, e suia le amio o le tafe i le malosi e fa'aaogaina.Ona o le fausaga o le macromolecular, o le viscosity o le vaifofo e faʻateleina vave i le faʻatonuga, ae faʻaitiitia vave i le maualuga o le vevela.Ole viscosity ole cellulose ether solutions e a'afia foi ile pH, malosi ole ionic, ma le iai o isi vaila'au.O nei mea uiga ese o le cellulose ether e faʻaaogaina i le tele o faʻaoga e pei o mea faʻapipiʻi, paʻu, mea teuteu, ma meaʻai.
Fa'aaogāga
1. Alamanuia Suau'u
Sodium carboxymethyl cellulose (NaCMC) o le cellulose ether ma le tele o faʻaoga i le suauʻu suauʻu faagasologa.O lona viscosity lelei-fa'ateleina ma fa'aitiitia le sua fa'aitiitia meatotino ua avea ai ma filifiliga ta'uta'ua i le vili vai, sua sima, ma sua gau.Aemaise lava, ua faʻaalia iʻuga manuia i le faʻaleleia atili o le suauʻu.E mafai e le NaCMC ona tetee atu i le tele o le filogia o le masima soluble ma faʻateleina le toe faʻaleleia o le suauʻu e ala i le faʻaitiitia o le vai gau, ma lona teteʻe masima ma viscosity-faʻateleina le gafatia e lelei mo le saunia o vai eliina mo vai fou, vai sami, ma vai masima tumu.
Sodium carboxymethyl hydroxypropyl cellulose (NaCMHPC) ma le sodium carboxymethyl hydroxyethyl cellulose (NaCMHEC) o lua cellulose ether derivatives ma maualuga slurrying fua faatatau, lelei anti-calcium faʻatinoga, ma lelei viscosity-faʻateleina le gafatia, avea ai i latou ma filifiliga sili ona lelei e pei o le viliina o palapala ma mea mo saunia vai fa'amae'a.Latou te faʻaalia le maualuga o le viscosity-faʻateleina le gafatia ma le faʻaitiitia o le suavai faʻaitiitia meatotino faʻatusatusa i le hydroxyethyl cellulose, ma o latou gafatia e faʻapipiʻiina i vai viliina o densities eseese i lalo o le mamafa o le calcium chloride e avea ai i latou ma mea faʻapipiʻi tele mo le faʻateleina o le gaosiga o suauʻu.
O le Hydroxyethyl cellulose (HEC) o se isi mea e maua mai i le cellulose o loʻo faʻaaogaina e avea o se palapala mafiafia ma faʻamautu i totonu o le viliina, faʻamaeʻaina, ma le sima.Pe a faatusatusa i le sodium carboxymethyl cellulose ma guar gum, HEC o loʻo i ai le malosi o le oneone, maualuga le masima, malosi lelei o le vevela, faʻaitiitia le faʻafefiloi, faʻaitiitia le suavai, ma le poloka poloka gel.O le HEC ua fa'aaogaina lautele ona o lona aafiaga mafiafia lelei, maualalo toega, ma isi meatotino.I le aotelega, o le cellulose ethers pei o le NaCMC, NaCMHPC, NaCMHEC, ma le HEC o loʻo i ai sao taua i le faʻagasologa o le suauʻu ma faʻaalia ai le gafatia tele i le faʻaleleia o le suauʻu.
2. Faufale ma Alamanuia Vali
Sodium carboxymethyl cellulose o se faʻaopoopoga mea fau fale e mafai ona faʻaaogaina e fai ma faʻalavelave, faʻamautu vai, mafiafia ma fusi mo le fausiaina o masonry ma sima sima.E mafai foʻi ona faʻaaogaina e fai ma faʻasalalauga, vai faʻapipiʻi ma mea mafiafia mo faʻamaʻi, sima ma mea e faʻaleleia ai le eleele.O se masonry faʻapitoa ma faʻapipiʻi paluga faʻafefiloi e faia i le carboxymethyl cellulose e mafai ona faʻaleleia le faʻaogaina, faʻamauina o le vai ma le faʻafefe, aloese mai le taʻe ma le gaogao i totonu o le puipui poloka.E le gata i lea, o le methyl cellulose e mafai ona faʻaogaina e fai ai mea faʻalelei luga o le fale mo le maualuga o le puipui ma le maa, faʻapea foʻi ma le teuteuga o koluma ma maa faamanatu.
3. Alamanuia Vailaau Fa'aaso uma
Sodium carboxymethyl cellulose o se viscosifier faʻamautu faʻapitoa e mafai ona faʻaaogaina i oloa eseese.I totonu o oloa fa'apipi'i o lo'o i ai mea fa'ameamea pa'u malosi, e taua tele lona sao i le fa'asalalauina ma le fa'amautu fa'amalolo.Mo vai po'o emulsion cosmetics, e galue e pei o se mafiafia, fa'asalalau, ma homogenizing sui.E mafai foi ona galue lenei mea e maua mai i le cellulose e pei o se emulsion stabilizer, suauu ma shampoo mafiafia ma stabilizer, toothpaste pipi'i stabilizer, ma vailaau mafiafia ma anti-pisa sui.Sodium carboxymethyl hydroxypropyl cellulose, o se ituaiga o cellulose ether, e masani ona faʻaaogaina e avea o se faʻamautu toothpaste ona o ona mea thixotropic, lea e fesoasoani e faʻamautu le fulunifo formability ma le tumau.O lenei mea e maua mai e mafai foi ona tetee atu i le masima ma le acid, ma avea ai ma se mafiafia lelei i vailaʻau faʻamaʻi ma vailaʻau faʻamaʻi.Sodium carboxymethyl cellulose e masani ona faʻaaogaina e avea o se palapala palapala, mafiafia, ma faʻasalalau i le gaosiga o le fufuluina o le paʻu ma le vai vai.
4. Fomai ma Alamanuia Taumafa
I totonu o fale gaosi oloa, Yibang hydroxypropyl carboxymethylcellulose (HPMC) o loʻo faʻaaogaina lautele e avea o se vailaʻau faʻamalosi mo le faʻamalolo o le faʻamaʻiina o fualaau faʻasaina ma sauniuniga faʻamalolo.E galue e pei o se mea e faʻasaʻoloto ai le tuʻuina atu o vailaʻau, ma o se mea faʻapipiʻi e faʻatuai ai le tuʻuina atu o vailaʻau.O le Methyl carboxymethyl cellulose ma le ethyl carboxymethyl cellulose e masani ona fa'aoga e fai ai fualaau ma capsules, po'o le fa'aofuina o papa e ufiufi ai le suka.I totonu o le alamanuia o mea'ai, o le cellulose ethers e sili ona lelei o ni mea mafiafia lelei, fa'amautu, mea fa'apitoa, vai fa'amauina ma mea fa'ainisinia i mea'ai eseese.Methylcellulose ma le hydroxypropylmethylcellulose o loʻo manatu e le faʻaogaina le metabolic ma e saogalemu mo le taumafaina.E mafai ona faaopoopo le carboxymethylcellulose maualuga-mama i mea taumafa, e aofia ai le susu ma le kulimi, mea manogi, siamu, jelly, meaai apa, sirup laulau, ma meainu.E le gata i lea, o le carboxymethyl cellulose e mafai ona faʻaaogaina i le felauaiga ma le teuina o fualaau aina fou e pei o se afifi palasitika, e maua ai se aafiaga lelei fou, faʻaitiitia le faʻaleagaina, leai se faʻaleagaina, ma le faʻaogaina faigofie.
5. Mea Fa'atino Fa'apitoa ma Eletise
O le ether cellulose maualuga-mama ma le acid lelei ma le masima tetee galue e pei o se electrolyte mafiafia stabilizer, maua ai meatotino colloidal mautu mo maa alkaline ma zinc-manganese.O nisi ethers cellulose o lo'o fa'aalia ai le tioata vai tioata, e pei o le hydroxypropyl cellulose acetate, lea e fausia ai tioata vai cholesteric i lalo ole 164°C.
Fa'asinoga Autu
● Lomifefiloi o Vailaau Matautia.
● Uiga, sauniuniga ma le faʻaaogaina o fale gaosimea ole cellulose ether.
● Tulaga Quo ma le Atina'eina o le Cellulose Ether Maketi.
