1. IHydroxypropyl methylcellulose (HPMC)yi-ether ye-cellulose engeyo-ionic eyenziwe kwi-cotton fiber yendalo okanye i-pulp yomthi ngokusebenzisa uchungechunge lweenkqubo zokucutshungulwa kweekhemikhali ezifana ne-alkalization, i-etherification, kunye nokucokisa. Ngokutsho kwe-viscosity yayo, i-HPMC inokwahlulwa ibe yi-viscosity ephezulu, i-viscosity ephakathi, kunye neemveliso ze-viscosity ephantsi. Phakathi kwabo, i-viscosity ephantsi ye-HPMC isetyenziswa ngokubanzi kwiinkalo ezininzi ngenxa yokunyibilika kwayo okugqwesileyo kwamanzi, ipropati yokwenza ifilimu, ukuthambisa, kunye nokuzinza kokusasazwa.
2. Iimpawu ezisisiseko ze-viscosity ephantsi ye-HPMC
Ukunyibilika kwamanzi: I-viscosity ephantsi ye-HPMC inyibilika ngokulula emanzini abandayo kwaye inokwenza isisombululo se-viscous esicacileyo okanye esiguquguqukayo, kodwa asinyibiliki emanzini ashushu kunye nezinyibilikisi ezininzi zezinto eziphilayo.
I-viscosity ephantsi: Xa kuthelekiswa ne-HPMC ephakathi kunye nephezulu, isisombululo sayo sine-viscosity ephantsi, ngokuqhelekileyo i-5-100mPa · s (2% isisombululo samanzi, i-25 ° C).
Ukuzinza: Unozinzo oluhle lweekhemikhali, ukunyamezela ngokulinganayo kwi-acids kunye ne-alkalis, kwaye inokugcina ukusebenza okuzinzileyo kwi-pH ebanzi.
Ipropathi yokwenza ifilimu: Inokwenza ifilimu efanayo kumphezulu we-substrates ezahlukeneyo, kunye nomqobo olungileyo kunye neempawu zokubambelela.
I-Lubricity: Ingasetyenziselwa njenge-lubricant ukunciphisa ukukhuhla kunye nokuphucula ukusebenza kwezinto.
Umsebenzi womphezulu: Unomsebenzi othile we-emulsification kunye nokusabalalisa kwaye unokusetyenziswa kwiinkqubo zokuzinzisa ukumiswa.
3. Iinkalo zokusetyenziswa kwe-HPMC ye-viscosity ephantsi
Izinto zokwakha
Udaka kunye ne-putty: Kudaka olomileyo, i-self-leveling mortar, kunye ne-plastering mortar, i-viscosity ephantsi ye-HPMC inokuphucula ngokufanelekileyo ukusebenza kolwakhiwo, iphucula ulwelo kunye ne-lubricity, ikhulise ukugcinwa kwamanzi odaka, kunye nokuthintela ukuqhekeka kunye ne-delamination.
I-adhesive ye-tile: Isetyenziswe njenge-thickener kunye ne-binder ukuphucula ukwakhiwa lula kunye namandla okudibanisa.
Iingubo kunye neepeyinti: Njenge-thickener kunye ne-suspension stabilizer, yenza i-uniform yokwambathisa, inqande i-pigment sedimentation, kwaye iphucula ibrashi kunye neempawu zokulinganisa.
Amayeza kunye nokutya
Abancedisi bamachiza: I-HPMC ye-viscosity ephantsi ingasetyenziselwa ukugquma ithebhulethi, i-agent-release-release agents, ukumiswa, kunye ne-capsule fillers kumashishini amayeza ukuze azinzise, adibanise, kwaye akhululwe kancinci.
Izongezo zokutya: zisetyenziswa njengezinto ezityebileyo, izinto zokuthambisa, izimilisi ekulungiseni ukutya, ezinjengokuphucula incasa kunye noburhabaxa kwizinto ezibhakiweyo, iimveliso zobisi kunye nejusi.
Izithambiso kunye neemveliso zokhathalelo lomntu
Kwiimveliso zokunakekelwa kwesikhumba, izicoci zobuso, i-conditioners, i-gel kunye nezinye iimveliso, i-HPMC ingasetyenziselwa njenge-thickener kunye ne-moisturizer ukuphucula imveliso yemveliso, yenza kube lula ukuyisebenzisa kunye nokuphucula induduzo yesikhumba.
I-Ceramics kunye nokwenza iphepha
Kushishino lweceramic, i-HPMC ingasetyenziswa njenge-lubricant kunye ne-molding aid ukunyusa ukumanzi kodaka kunye nokuphucula amandla omzimba.
Kwishishini lokwenza iphepha, lingasetyenziselwa ukugquma iphepha ukuphucula ukuguda komphezulu kunye nokuguquguquka kokushicilela kwephepha.
Ezolimo kunye nokukhuselwa kwendalo
I-viscosity ephantsi i-HPMC ingasetyenziselwa ukunqunyanyiswa kwezitshabalalisi ukuphucula uzinzo lwamachiza kunye nokwandisa ixesha lokukhululwa.
Kwizinto ezihambelana nokusingqongileyo, ezifana nezongezo zonyango lwamanzi, izithinteli zothuli, njl., zinokunyusa ukuzinza kwe-dispersion kunye nokuphucula umphumo wokusetyenziswa.
4. Ukusetyenziswa kunye nokugcinwa kwe-viscosity ephantsi ye-HPMC
Indlela yokusetyenziswa
I-viscosity ephantsi ye-HPMC idla ngokunikezelwa nge-powder okanye i-granular form kwaye inokusasazwa ngokuthe ngqo emanzini ukuze isetyenziswe.
Ukuthintela i-agglomeration, kuyacetyiswa ukuba wongeze kancinci i-HPMC kumanzi abandayo, ushukume ngokulinganayo emva koko ubushushu ukunyibilika ukuze ufumane isiphumo esingcono sokunyibilika.
Kwifomula eyomileyo yomgubo, inokuxutywa ngokulinganayo kunye nezinye izinto ezinomgubo kwaye zongezwe emanzini ukuphucula ukusebenza kakuhle kokunyibilika.
Iimfuno zokugcina
I-HPMC kufuneka igcinwe kwindawo eyomileyo, epholileyo, engenamoya ukuthintela ubushushu obuphezulu kunye nokufuma.
Gcina kude kwii-oxidants ezomeleleyo ukuthintela ukusabela kweekhemikhali ekubangeleni utshintsho lokusebenza.
Ubushushu bokugcina bunconywa ukuba bulawulwe kwi-0-30 ℃ kwaye ugweme ukukhanya kwelanga ngqo ukuqinisekisa ukuzinza kunye nobomi benkonzo yemveliso.
I-viscosity ephantsi ye-hydroxypropyl methylcelluloseidlala indima ebalulekileyo kumashishini amaninzi afana nezixhobo zokwakha, amayeza kunye nokutya, izithambiso, ukwenza iphepha le-ceramic, kunye nokukhuselwa kokusingqongileyo kwezolimo ngenxa yokunyibilika kwamanzi okugqwesileyo, ukuthambisa, ukugcinwa kwamanzi kunye neepropati zokwenza ifilimu. Iimpawu zayo eziphantsi ze-viscosity zenza ukuba zilungele ngakumbi iimeko zesicelo ezifuna u-fluidity, ukusabalalisa kunye nokuzinza. Ngophuhliso oluqhubekayo lobugcisa bemizi-mveliso, intsimi yesicelo se-viscosity ephantsi ye-HPMC iya kwandiswa ngakumbi, kwaye iya kubonisa amathemba abanzi ekuphuculeni ukusebenza kwemveliso kunye nokuphucula iinkqubo zemveliso.
Ixesha lokuposa: Mar-25-2025