O le a le hydroxyethyl methyl cellulose (HEMC)?
Hydroxyethyl methylcellulose(HEMC) ua lauiloa foi o le methylhydroxyethyl cellulose (MHEC).E pa'epa'e, efuefu pa'epa'e, pe samasama pa'epa'e vaega.O se ether cellulose le ionic e maua mai i le fa'aopoopoina o le ethylene oxide i le methyl cellulose.E faia mai polymers faʻafouina faʻanatura e pei o le pulupulu laupapa poʻo le cotton, ma e mafai ona faʻaaogaina le HEMC e avea o se mea e teu ai vai maualuga, faʻapipiʻi ma faʻapipiʻi ata tifaga, stabilizer, ma isi. E faʻaaogaina lautele i le tele o mea tau pisinisi, e pei o le suauʻu. viliina, fau ma faufale, vali ma fa'alavalava, pharmaceuticals, etc.HEMCe mafai ona suia e tusa ai ma manaoga o tagata faatau, ma ina ua uma suiga, o loo i ai pea le tetee lelei i sagging ma processability lelei.Mana'o e fa'aogaHEMCmo faamoemoega tau alamanuia?Fa'amolemole fa'afeso'ota'i se kamupani fa'atuatuaina ohydroxyethyl methyl celluloseia maua se fefaʻatauaiga lelei.
HEMCe eseese galuega.E aofia ai:
1. Folafolaga
HEMCe mafai ona pa'epa'e, lanu samasama, samasama pa'epa'e, po'o le efuefu paepae.
2. Solubility
HEMCe solu i le vai (malulu pe vevela).E ui lavaHEMCe insoluble i le tele o solvents organic, e soluble i binary solvents organic ma faiga vai solvent organic.
O lona maualuga maualuga e fa'alagolago i le viscosity, ma o lona solubility e fesuisuia'i ma le viscosity.O le maualalo o le viscosity, o le tele o le solubility, ma le isi itu.
3. Tulaga o le pH
HEMCe mautu i le va o le 3.0-11.0 ma o lona viscosity e toetoe lava a le afaina, ae sili atu i lenei laina o le a faʻaitiitia ai lona viscosity.
4. Metabolism
HEMCo se mea e le mafai ona faʻaaogaina e masani ona faʻaaogaina i meaʻai ma vailaʻau ona o lona le mafai ona maua le metabolism.
5. Gaoioiga i luga
Ona o lona galue malosi i luga o vaifofo, e mafai ona faʻaaogaina e avea o se faʻasalalau, puipui, ma emulsifier.
6. Tete'e aga
I le teuina umi,HEMCe lelei le mautu o le viscosity, o lea e lelei le faʻafefeteina.
O lona malosi fa'afefeteina e maualuga atu nai lo le hydroxyethyl cellulose.
7. Taofi le vai
HEMCe avea ma se mea lelei e taofia ai le suavai ona o lona viscosity maualuga i vaifofo vai.
E sili atu lona malosi e taofi ai le vai nai lo le methyl cellulose.
8. Afu i totonu
O le faagasologa o sauniuniga oHEMCfa'aaoga vai vevela, e maua ai le maualalo o le pefu.
9. Fa'apipi'i fa'avevela vevela
Ina ua leHEMCvaifofo e faʻamafanafanaina i se vevela, faʻaitiitia lona manino, fausia le palapala ma gel, ae afai e faʻamafanafanaina, o le a toe foʻi i le tulaga muamua o le fofo.
Fa'aoga masani oHEMC
Hydroxyethylmethylcellulosee mafai ona faʻaaogaina e pei o:
Ø Fa'apipi'iØ Colloid PuipuiØ Fa'amamafaØ Va'ai fai ata Fa'amulumulu LubricantØ So'o fa'amautu
Fa'aaogāga fa'apisinisi oHEMC
HEMCfa'aaogaina lautele i pisinisi nei:
· Fa'apotopotoina · Ceramics · Mea teuteu Fausiaina · Meaʻai ma Meainu · Vailaau Faʻamaʻi / Vali ma Faʻapipiʻi · Vaitusi ma suauʻu viliina
E pei ona taʻua muamua,hydroxyethyl methylcellulose (HEMC) o se mea e maua mai i le methylcellulose.O se ether cellulose e le ionic e faia mai i meafaitino mata maualuga-mama.HEMCO le fa'atumauina o le vai ma le fa'amamafaina o mea e mafai ona talafeagai mo vali latex fa'avae vai, vaitusi ma suau'u viliina, mea fau fale, ma isi. Ona o lona fa'aogaina lautele i talosaga eseese, mauainaHEMCmai kamupani lauiloa o le hydroxyethyl methyl cellulose e mafai ona faʻamautinoa e te maua ni oloa e talafeagai mo le faʻaogaina e le tagata lava ia poʻo le faʻaaogaina fale gaosi oloa.
Taimi meli: Aukuso-28-2023