Hydroxypropyl methylcellulose o loʻo faʻaaogaina e avea o se mea e gaosia ai le suauʻu, lea e mafai ona iloa ai le faʻaaogaina o le suka atoa, faʻaleleia le faʻaogaina o meafaitino, faʻaitiitia le aofaʻi o meaʻai i totonu o le susu faʻafefe, ma faʻaitiitia le tau o togafitiga vai. O lenei hydroxypropyl methylcellulose O le uiga autu e faʻamalosia i le faʻaogaina o le faʻaputuga, fafaga-batch ma faʻaauau pea le faʻagasologa o le faʻafefeteina, aloese mai se faʻasologa o faʻafitauli e pei o le pulea o le faʻaogaina o le feololo ma le fua faʻafefe; e fesoasoani foi i le faatonutonuina o le faagasologa o le fermentation.
Hydroxypropyl methylcellulose, o le mea mataʻutia cellulose, e mafai ona faʻamamaina le cotton poʻo le pulu laupapa. E matua manaʻomia le tuʻimomomoina aʻo leʻi faʻasalaina poʻo le taimi ole alkalization. O le tu'imomomoina o le fa'aumatiaina lea o le cellulose mea mata e ala i le malosi fa'ainisinia. O le faʻapipiʻiina o le fausaga o le cellulose macromolecules e mafai ona faʻaitiitia ai le maualuga o le tioata ma le polymerization, faʻateleina lona eria, ma faʻaleleia atili ai le faʻaogaina ma le gafatia o le gaioiga o le tali atu i vaega hydroxyl e tolu i luga o le kulukose mama vaega o le cellulose macromolecule.
E ui lava e le faigata le mataupu faavae o le etherification o le hydroxypropyl methylcellulose, o le siosiomaga eseese o alkalization, mea mata nutimomoia, etherification, toe faaleleia solvent, tuueseeseina centrifugal, fufuluina ma faamago e aofia ai se numera tele o tekinolosi autu ma mauoa connotations malamalama. Mo ituaiga eseese o oloa, o siosiomaga taʻitasi o loʻo i ai tulaga sili ona lata mai, e pei o le vevela, taimi, mamafa ma le faʻatonutonuina o mea. O mea faigaluega fesoasoani ma meafaigāluega fa'atonutonu o ni fa'amautinoaga lelei mo le fa'amautuina o le lelei o oloa ma fa'amoemoega o gaosiga.
Talu ai o le faʻatinoga o le hydroxypropyl methylcellulose e tutusa ma isi ethers e mafai ona faʻafefe vai, e mafai ona faʻaaogaina i le latex vali ma vai-soluble resin vaega vali e avea o se sui fai ata tifaga, mafiafia, emulsifier ma stabilizer.
Fai le ata faʻapipiʻi e lelei le ofuina, faʻapipiʻiina ma faʻapipiʻi, ma faʻaleleia le faʻalavelave i luga, mautu i le acid ma le alkali, ma le fetaui i pigments metallic. O le Hydroxypropyl methylcellulose e iai sona aafiaga lelei e pei o se mafiafia mo vali paʻepaʻe polyvinyl acetate paʻepaʻe. O le maualuga o le suitulaga o le cellulose ether ua faʻateleina, ma faʻateleina foi le tetee atu i siama siama.
Taimi meli: Tes-22-2022