1. Yintoni i-hydroxypropyl methylcellulose?
IHydroxypropyl methylcellulose (HPMC)i-non-ionic cellulose ether engeyona ityhefu kwaye engenabungozi, esetyenziswa ngokubanzi kwizinto zokwakha, ukutya, amayeza, izimonyo kunye nezinye iinkalo. Inemisebenzi yokuqina, ukugcinwa kwamanzi, ukubunjwa kwefilimu, i-bonding, i-lubrication kunye nokumiswa, kwaye inokunyibilika emanzini ukwenza isisombululo se-viscous esicacileyo okanye esiguquguqukayo.
2. Ukusetyenziswa okuqhelekileyo kunye nokusetyenziswa kwe-HPMC
Indawo yokwakha
I-HPMC iqhele ukusetyenziswa kwizinto zokwakha ezifana nodaka lwesamente, umgubo weputty, i-adhesive tile, njl.
Umsebenzi: Ukuphucula ukusebenza kolwakhiwo, ukuphucula ukugcinwa kwamanzi, ukwandisa ixesha elivulekileyo, kunye nokuphucula ukusebenza kwebhondi.
Indlela yokusetyenziswa:
Yongeza ngokuthe ngqo kumdaka odibeneyo owomileyo, isixa esicetyiswayo ngu-0.1% ~ 0.5% yobunzima besamente okanye i-substrate;
Emva kokuvuselela ngokupheleleyo, yongeza amanzi kwaye udibanise kwi-slurry.
Ishishini lokutya
I-HPMC ingasetyenziswa njenge-thickener, i-stabilizer kunye ne-emulsifier, kwaye idla ngokufunyanwa kukutya okufana ne-ayisikrimu, ijeli, isonka, njl.
Umsebenzi: Phucula incasa, uzinzise inkqubo, kwaye uthintele istratification.
Ukusetyenziswa:
Ukunyibilika emanzini abandayo, idosi ecetyiswayo ihlengahlengiswa phakathi kwe-0.2% kunye ne-2% ngokohlobo lokutya;
Ukufudumeza okanye ukuvuselela oomatshini kunokukhawulezisa ukutshatyalaliswa.
Ishishini lamachiza
I-HPMC ihlala isetyenziselwa ukugquma ithebhulethi yeziyobisi, i-tablet matrix ekhutshwa ngokuzinzileyo okanye iqokobhe le-capsule:
Umsebenzi: ukwenziwa kwefilimu, ukulibaziseka kokukhutshwa kweziyobisi, kunye nokukhuselwa komsebenzi weziyobisi.
Ukusetyenziswa:
Lungiselela kwisisombululo kunye noxinzelelo lwe-1% ukuya kwi-5%;
Gcoba ngokulinganayo kumphezulu wethebhulethi ukwenza ifilimu encinci.
Izithambiso
HPMCisetyenziswa njenge-thickener, i-emulsion stabilizer okanye i-agent-forming agent, edla ngokusetyenziswa kwiimaski zobuso, iilotion, njl.
Umsebenzi: Phucula ukuthungwa kunye nokuphucula ukuvakalelwa kwemveliso.
Ukusetyenziswa:
Yongeza kwi-matrix ye-cosmetic ngokulinganayo kwaye udibanise ngokulinganayo;
I-dosage ngokubanzi yi-0.1% ukuya kwi-1%, ilungelelaniswe ngokweemfuno zemveliso.
3. Indlela yokuchithwa kwe-HPMC
Ukunyibilika kwe-HPMC kuchatshazelwa kakhulu bubushushu bamanzi:
Kulula ukuchithwa emanzini abandayo kwaye kunokwenza isisombululo esifanayo;
Ayinyibiliki emanzini ashushu, kodwa inokusasazeka kwaye yenze icolloid emva kokupholisa.
Amanyathelo athile okuphelisa:
Gcoba i-HPMC ngokucotha emanzini, uphephe ukugalela ngokuthe ngqo ukunqanda i-caking;
Sebenzisa i-stirrer ukuxuba ngokulinganayo;
Lungisa ugxininiso lwesisombululo njengoko kufuneka.
4. Izilumkiso zokusebenzisa i-HPMC
Ukulawulwa komthamo: Kwiimeko ezahlukeneyo zokusetyenziswa, idosi ichaphazela ngokuthe ngqo ukusebenza kwaye kufuneka ivavanywe ngokweemfuno.
Iimeko zokugcina: Kufuneka igcinwe kwindawo epholileyo, eyomileyo, nengena umoya ukunqanda ukufuma kunye nobushushu obuphezulu.
Ukhuseleko lokusingqongileyo: I-HPMC iyabola kwaye ayingcolisi okusingqongileyo, kodwa kusafuneka isetyenziswe ngendlela esemgangathweni ukuthintela inkunkuma.
Uvavanyo lokuhambelana: Xa zongezwa kwiinkqubo ezinzima (ezifana nezithambiso okanye amayeza), ukuhambelana nezinye izithako kufuneka kuhlolwe.
5. Izinto eziluncedo ze-HPMC
I-Non-toxic, ihambelana nokusingqongileyo, ukhuseleko oluphezulu;
Ukuguquguquka, ukulungelelaniswa kwiimfuno ezahlukeneyo zesicelo;
Ukuzinza okulungileyo, kunokugcina ukusebenza ixesha elide.
6. Iingxaki eziqhelekileyo kunye nezisombululo
Ingxaki ye-agglomeration: Nika ingqwalasela kwidibaniso esasaziweyo ngexesha lokusetyenziswa kwaye ushukumise ngokupheleleyo ngaxeshanye.
Ixesha elide lokuchithwa: Ukulungiswa kwamanzi ashushu okanye ukuvuselela oomatshini kungasetyenziselwa ukukhawulezisa ukutshatyalaliswa.
Ukuthotywa kokusebenza: Nika ingqalelo kwindawo yokugcina ukuphepha ukufuma kunye nobushushu.
Ngokusebenzisa i-HPMC ngokwesayensi nangengqiqo, iimpawu zayo ezisebenzayo zingasetyenziswa ngokupheleleyo ukubonelela ngezisombululo ezikumgangatho ophezulu kumashishini ahlukeneyo.
Ixesha lokuposa: Dec-10-2024