IHydroxypropyl methylcellulose ether (HPMC) ibe sisongezo esibalulekileyo sodaka olusekwe kwisamente ngenxa yeempawu zayo ezintle kunye neenzuzo. I-HPMC yi-ether ye-cellulose eguqulwayo efunyenwe ngokuphatha i-cellulose nge-propylene oxide kunye ne-methyl chloride. Ingumgubo omhlophe okanye omhlophe ochithwa emanzini ukuze wenze isisombululo esicacileyo se-viscous.
Ukongezwa kwe-HPMC kwiidaka ezisekelwe kwisamente kuneenzuzo zokuphuculwa kokusebenza, ukugcinwa kwamanzi, ixesha lokumisela kunye namandla akhulayo. Kwakhona kuphucula ukunamathela kodaka kwi-substrate kunye nokunciphisa iintanda. I-HPMC ihambelana nokusingqongileyo, ikhuselekile ukuyisebenzisa kwaye ayinayo ityhefu.
Ukuphucula ukusebenza
Ubukho be-HPMC kwi-samente-based mortars kwandisa ukuhambelana komxube, okwenza kube lula ukwakha kunye nokusabalalisa. Umthamo ophezulu wokugcina amanzi we-HPMC wenza ukuba udaka luhlale lusebenza ixesha elide. Oku kubaluleke ngakumbi kwiimeko zemozulu ezishushu nezomileyo apho inkqubo yokwakha ingaba ngumngeni.
Ukugcinwa kwamanzi
HPMC inceda ukugcina ukufuma kumxube ixesha elide. Oku kubalulekile kuba amanzi yinxalenye ebalulekileyo yokuqinisa isamente kunye nokuqinisekisa ukomelela nokuqina kwayo. Ukunyuka kwamandla okubamba amanzi kunenzuzo ngokukodwa kwiindawo ezinomswakama ophantsi okanye amaqondo obushushu aphezulu, apho amanzi kumdaka angaphuma ngokukhawuleza.
misela ixesha
I-HPMC ilungisa ixesha lokumisela udaka olusekwe kwisamente ngokulawula izinga lokugalela amanzi kwisamente. Oku kubangela ukuba iiyure zokusebenza zinde, nto leyo enika abasebenzi ixesha elaneleyo lokufaka izicelo nokulungisa udaka ngaphambi kokuba lubekwe. Ikwavumela ukusebenza okufanayo kwiindawo ezahlukeneyo.
Ukunyuka kokuqina
Ukongezwa kwe-HPMC kukhuthaza ukubunjwa komgangatho ophezulu we-hydrate layer, ngaloo ndlela uphucula ukuqina kunye namandla odaka olusekelwe kwi-samente. Oku kungenxa yokwanda kobunzima bomaleko owenziwe malunga namasuntswana eklinka yesamente. Ulwakhiwo olwenziwe kule nkqubo luzinzile ngakumbi, ngaloo ndlela luphucula umthamo wokuthwala udaka.
Phucula ukubambelela
Ubukho be-HPMC kwi-samente-based mortars kuphucula ukubambelela phakathi kodaka kunye ne-substrate. Oku kungenxa yesakhono se-HPMC sokuzimanya ngesamente kunye ne-substrate ukwenza ibhondi eyomeleleyo. Ngenxa yoko, ithuba lokuqhekeka kodaka okanye ukuhlukana kwi-substrate liyancipha kakhulu.
Nciphisa ukuqhekeka
Ukusebenzisa i-HPMC kwiindonga ezisekwe kwisamente kwandisa ukuguquguquka kwaye kunciphisa amathuba okuqhekeka. Oku kubangelwa ukubunjwa komgangatho ophezulu we-hydrate layer ovumela ukuba udaka luxhathise ukuqhekeka ngokufunxa uxinzelelo kunye nokwandisa okanye ukuxhamla ngokufanelekileyo. I-HPMC ikwanciphisa ukushwabana, omnye unobangela oqhelekileyo wokuqhekeka kodaka olusekwe kwisamente.
I-HPMC sisongezo esinobuhlobo nokusingqongileyo nesingeyotyhefu edlala indima ebalulekileyo ekuphuculeni ukusebenza kweendonga ezisekwe kwisamente. Izibonelelo zayo zodlula kude iindleko zayo, kwaye ukusetyenziswa kwayo kuya kuthandwa ngakumbi kushishino lokwakha. Ikhono layo lokuphucula ukusebenza, ukugcinwa kwamanzi, ixesha lokubeka, ukwandisa amandla, ukuphucula ukunamathela kunye nokunciphisa ukuqhekeka kwenza kube yinxalenye ebalulekileyo yenkqubo yokwakha yanamhlanje.
Ixesha lokuposa: Sep-20-2023