I-Hydroxypropyl methylcellulose (HPMC)yipolymer eguquguqukayo esetyenziswa kumashishini afana namayeza, ulwakhiwo, izinto zokuthambisa, ukutya, kunye nokhathalelo lomntu. Ukuqina kwe-HPMC kudlala indima ebalulekileyo ekumiseleni ukufaneleka kwayo kwiindlela ezahlukeneyo zokusetyenziswa. Ukuqina kuphenjelelwa bubunzima beemolekyuli, ubungakanani bokutshintshwa, kunye noxinzelelo. Ukuqonda amanqanaba afanelekileyo okuqina kubalulekile ekukhetheni i-HPMC efanelekileyo kwiimfuno ezithile zoshishino.
Umlinganiselo wokubonakala
I-viscosity ye-AnxinCel®HPMC idla ngokulinganiswa kwizisombululo zamanzi kusetyenziswa i-rotational okanye i-capillary viscometer. Ubushushu obuqhelekileyo bovavanyo yi-20°C, kwaye i-viscosity ibonakaliswa kwi-millipascal-seconds (mPa·s okanye cP, centipoise). Amanqanaba ahlukeneyo e-HPMC ane-viscosities ezahlukeneyo kuxhomekeke kwisicelo sabo.
Amabanga e-Viscosity kunye nezicelo zawo
Itheyibhile engezantsi ichaza amanqanaba e-viscosity aqhelekileyo e-HPMC kunye nokusetyenziswa kwawo okuhambelanayo:
| Udidi lwe-Viscosity (mPa·s) | Uxinaniso oluqhelekileyo (%) | Isicelo |
| 5 – 100 | 2 | Amaconsi amehlo, izongezo zokutya, izithambiso |
| 100 – 400 | 2 | Iingubo zethebhulethi, izibophelelo, izincamathelisi |
| 400 – 1,500 | 2 | Izithambisi-mafutha, izinto zokuthambisa, iinkqubo zokuhambisa amayeza |
| 1,500 – 4,000 | 2 | Iiarhente zokutyeba, iimveliso zokhathalelo lomntu |
| 4,000 – 15,000 | 2 | Ulwakhiwo (izincamathelisi zethayile, iimveliso ezisekwe kwisamente) |
| 15,000 – 75,000 | 2 | Iifomyula zamayeza ezikhutshwa ngokulawulwayo, ii-grout zokwakha |
| 75,000 – 200,000 | 2 | Izincamathelisi ezixineneyo kakhulu, ukuqinisa isamente |
Izinto Ezichaphazela Ukuxinana
Zininzi izinto ezichaphazela ukuxinana kwe-HPMC:
Ubunzima beemolekyuli:Ubunzima obukhulu beemolekyuli bukhokelela ekwandeni kwe-viscosity.
Inqanaba lokutshintsha:Umlinganiselo we-hydroxypropyl kunye namaqela e-methyl uchaphazela ukunyibilika kunye nokuxinana.
Uxinzelelo lweSombululo:Uxinzelelo oluphezulu lubangela ukuba i-viscosity ibe nkulu.
Ubushushu:Ukuqina kwesikhumba kuyehla xa ubushushu bunyuka.
Ubuthathaka be-pH:Izisombululo ze-HPMC zizinzile ngaphakathi koluhlu lwe-pH oluyi-3-11 kodwa zinokonakala ngaphandle kolu luhlu.
Izinga lokucheba:I-HPMC ineempawu zokuhamba kwamanzi ezingezizo ezeNewtonian, nto leyo ethetha ukuba i-viscosity iyancipha xa iphantsi koxinzelelo lwe-shear.
Izinto Eziqwalaselwayo Ngokwesicelo
Amayeza:I-HPMC isetyenziswa kwiifomyula zamayeza ukuze kukhutshwe amayeza ngendlela elawulwayo nanjengesibopheleli kwiipilisi. Iifomyula ezisezantsi ze-viscosity (100–400 mPa·s) zikhethwa kakhulu kwiingubo, ngelixa iifomyula eziphezulu (15,000+ mPa·s) zisetyenziswa kwiifomyula ezikhutshwa rhoqo.
Ulwakhiwo:I-AnxinCel®HPMC isebenza njengearhente yokugcina amanzi kunye ne-adhesive kwiimveliso ezisekwe kwisamente. Amanqanaba aphezulu okuxinana (ngaphezulu kwe-4,000 mPa·s) alungele ukuphucula ukusebenza kakuhle kunye namandla okubopha.
Izithambiso kunye noNonophelo loBuqu:Kwiishampu, iiloshini, kunye neekhrimu, i-HPMC isebenza njengesithambisi kunye nesiqinisi. Amanqanaba aphakathi e-viscosity (400–1,500 mPa·s) abonelela ngokulinganisela okufanelekileyo phakathi kobume kunye neempawu zokuhamba kwamanzi.
Ishishini lokutya:Njengesithako sokutya (E464), i-HPMC iphucula ubume, uzinzo, kunye nokugcinwa komswakama. Amanqanaba aphantsi e-viscosity (5–100 mPa·s) aqinisekisa ukusasazeka ngokufanelekileyo ngaphandle kokuqina kakhulu.
Ukukhethwa kweI-HPMCUdidi lwe-viscosity luxhomekeke kwisicelo esicetywayo, kunye nodidi oluphantsi lwe-viscosity olufanelekileyo kwizisombululo ezifuna ukuqina okuncinci kunye nodidi oluphezulu lwe-viscosity olusetyenziswa kwiifomyula ezifuna ukunamathela okuqinileyo kunye neempawu zokuzinzisa. Ulawulo olufanelekileyo lwe-viscosity luqinisekisa ukusebenza okusebenzayo kumashishini amayeza, ulwakhiwo, ukutya, kunye nezinto zokuthambisa. Ukuqonda izinto ezichaphazela i-viscosity kunceda ekwenzeni ngcono ukusetyenziswa kwe-HPMC kwizicelo ezahlukeneyo zoshishino.
Ixesha leposi: Feb-11-2025