Zithini iipropathi zekhemikhali ze-HPMC Hypromellose?

I-Hypromellose, ekwabizwa ngokuba yi-hydroxypropyl methylcelcelculose (i-HPMC), yi-polymer ye-polymer ethathwe kwi-sellulose. Isetyenziswe ngokubanzi kwindawo yamayeza, ukutya kunye namashishini e-cosmetic njenge-thi checker, i-emulsifier kunye ne-binder. I-HPMC yinto engenatyhefu kunye ne-biodegradable, eyenza ukuba ikhuseleke kwaye iyisingqongileyo.

1. Ukuzalwa kwamanzi

I-HPMC inyibilikisa emanzini kwaye icacisa isisombululo esicacileyo okanye kancinci se-opalescent. Ukunyibilisela i-HPMC kuxhomekeke kwiBanga laKhe, ubunzima bemolekyuli kunye nenqanaba lokufaka endaweni. I-viscosity ephezulu kunye namanqanaba eemodeli zemolekyuli azinyibiliki kunamabanga aphantsi. Inqanaba lokufaka endaweni libonisa inani lee-hydropyl kunye namaqela e-methyl aqhotyoshelwe kwi-HPMC Selebose. Ukuphakama kwenqanaba lokufakelwa endaweni yokufakelwa, ukunciphisa isolula amanzi.

I-2. Ukuhla kweMichiza

I-HPMC izinzile kwaye ayiphenduli ngeekhemikhali ze-organic kunye ne-inorganic. Inganyangekiyo kwi-alkalis, i-acids ebuthathaka kunye nezinyibilikisi eziphilayo. Nangona kunjalo, i-HPMC iqala nge-acid eqinileyo kunye neearhente zokudinisa, ezikhokelela ekuthambekeni kwayo kunye nelahleko yokusebenza. Ke ngoko, kucetyiswa ukuba kuthintelwe ukubhenca i-HPMC kwii-acids eziqinileyo okanye iiarhente ze-oxidifing.

I-3. Ipropathi yokwakha ifilimu

I-HPMC inepropathi egqwesileyo yefilimu kwaye ilungele ukuqeshwa kwetafile, ukukhutshwa okuzinzileyo okuphezulu kunye ne-engengecasic. Ifilimu eyenziwe yi-HPMC iyaguquguquka, imbonakalo kwaye igudileyo. Ifilimu ikwathintela ukonakaliswa kwesithako esisebenzayo kwithebhulethi okanye kwi-capsule.

I-4. Ukungcwaba kwe-shirmal

Kuxhomekeka kwiBanga le-Viscosity, i-HPMC isebenza nge-thermal ye-thermal xa ifudumele emanzini ngaphezulu kobushushu obuthile. Amaqondo obushushu okuhlaselwa asusela kwi-50 ° C ukuya kwi-90 ° C. Ijeli eyenziwe yi-HPMC iphinde iguquke, intsingiselo ingayinyibilika iphinde ibuyele kwimeko yolwelo ngokupholisa. Le ndawo yenza i-HPMC ilungele ukusetyenziswa kwifomu elawulwayo, kuba ichiza linokukhululwa kubushushu obuthile.

I-5. Iipropathi ze-RIOOLOCT

I-HPMC ibonisa indlela ye-pseudoplastic, ethetha ukuba i-viscofity yayo ihla ngokuqalisa inqanaba loomasipala. Le propati yenza i-HPMC ilungele ukusetyenziswa njenge-thi cokener kunye ne-stabilizer ekutyeni kunye nendlela yokuthambisa. I-HPMC ikwasetyenziswa njengearhente yokumisa ngenxa yokuziphatha kweThixitropic, ethetha ukuba i-viscofity yayo ihla phantsi koxinzelelo oluqhubekayo lwe-Shear.

I-HPMC yinto ekhuselekileyo nekhuselekileyo enepropathi egqwesileyo yekhemikhali. Umoya wayo wamanzi, uzinzo lwamachiza, iipropathi ezenzi filimu, iipropathi ze-thermogel of thermogeloger zenza ukhetho oludumileyo kumashishini ahlukeneyo. I-HPMC nayo ikwanokusebenza kwaye inobuhlobo bokusingqongileyo, ikwenze lukhetho oluzinzileyo.