1. Ubume
I-Hydroxypropyl Methylcelceltulose (HPMC) yindawo ephezulu yokusebenza, esetyenziswa ngokubanzi kwizinto zokwakha, ngakumbi ekuvelisweni kodaka olusekwe kwisamente. Imisebenzi ephambili ye-HPMC kwimo yesamente ibandakanya ukuthandwa, ukugcinwa kwamanzi, ukuphucula iipropathi zokwenza buza kunye nokuphucula ukusebenza. Ukuqonda indlela yokusasazwa kwe-HPMC e-Cemetionation ibalulekile ekuqhubeni intsebenzo yayo.
2. Iipropathi ezisisiseko ze-HPMC
I-HPMC yi-ionic seluplose ether, iiyunithi zikabani zongezo ziqulunqwe i-seluplose, i-hydroxypropyl kunye ne methyl. Isakhiwo sekhemikhali se-HPMC sinika i-IT I-IT IYAVUYELA EZIQHELEKILEYO NEZIBHENO KWI-ACDETO EZIQHELEKILEYO:
Isiphumo sokuqaqamba: I-HPMC inokwenza isisombululo se-viscous emanzini, enokubangelwa kukuba emva kokuba ichithwe emanzini, iimolekyuli zibambene nezakhiwo zenethiwekhi.
Ukugcinwa kwamanzi: i-HPMC inomgangatho oqingqiweyo wamanzi kwaye inokulibazisa ukuvela kwamanzi, ngaloo ndlela idlala indima ekugcineni amanzi esimemeni.
Ukusebenza komzimba: Kungenxa yokuba iimolekyuli ze-HPMC zenza ifilimu yokukhusela phakathi kwamasuntswanamente, ukusebenza phakathi kwamasuntswana kuphucuka.
I-3. Inkqubo yokusasaza ye-HPMC kwisamente yesamente
Inkqubo yokupheliswa: I-HPMC kufuneka ichithwe emanzini kuqala. Inkqubo yokuphelisa i-HPMC i-HPMC ifumana amanzi kunye nokuhlanjwa, kwaye ngokuthe ngcembe zasasazeka ukwenza isisombululo esifanayo. Ukusukela ukusukela kwi-HPMC emanzini kuhambelana nenqanaba layo lokufakelwa endaweni (DS) kunye nobunzima bemolekyuli, kubalulekile ukukhetha ukucaciswa kwe-HPMC. Ukuchithwa kwe-HPMC emanzini yinkqubo yokuqhutywa komzimba, efuna ukuvuselela okufanelekileyo kokukhawulezisa ukusasazeka.
Ukusasazeka kwetyala: Ngexesha lokupheliswa kwe-HPMC, ukuba i-stirring ayonelanga okanye iimeko zokuchitheka azifanelekanga, i-HPMC ifakelwe ukwenza i-Agglomerates (amehlo eentlanzi). Ezi ageglomeragerate kunzima ukuzinyibilikisa ngakumbi, ngenxa yoko ichaphazela ukusebenza kwesamente. Ke ngoko, iyunifomu eshukumisayo ngexesha lenkqubo yokupheliswa yikhonkco elibalulekileyo lokuqinisekisa ukusasazeka kwe-HPMC.
Unxibelelwano nee-clententles Le filimu ikhuselayo inokunyusa ukubiwa phakathi kwamasuntswana kwelinye icala, kwelinye icala, linokwenza umqobo kumphezulu wamasuntswana ukuze ulibazise ukufuduka kunye nokuphuma kwamanzi.
Ukusasazwa kozinzo: Ikhonkco lePolymer ye-HPMC linoku-adsorb ngokwasemzimbeni kunye ne-CA2 +, Sio2 kunye nezinye ii-Ion kumphezulu wamasuntswana wesamente ukuze uzinze imeko yayo. Ngokuhlengahlengiswa kwenqanaba lokufaka endaweni kunye ne-molecular ye-HPMC, uzinzo kukusasazwa kwesamente esimemeni linokuphelelwa.
4. Ulungelelwaniso olusebenzayo lwe-HPMC kwi-cemetion
Isiphumo sokuqaqamba:
Iziphumo zokubalelwa kwe-HPMC kwi-mpmc kububele kuxhomekeke kubunzima bayo kunye nobunzima bemolekyuli. I-HPMC ene-molecular yemolekyuli inokuthi inyuse kakhulu udaka lodaka, ngelixa i-HPMC ye-molecular yesimo esiphantsi inokuvelisa isiphumo esingcono sokuxakeka.
Isiphumo sobukhulu sinokuphucula ukusebenza kodaka kwaye senze udaka lunentsebenzo esebenzayo, ngakumbi ulwakhiwo oluthe nkqo.
Ukugcinwa kwamanzi:
I-HPMC inokufumana ngokulula umswakama kwaye yandise ixesha elivulekileyo lodaka. Ukugcinwa kwamanzi akunakunciphisa kuphela i-shrinkage kunye neengxaki zokuqhekeza eludangweni, kodwa ziphucula ukusebenza kodaka lwe-subcer.
Umthamo wokugcinwa kwamanzi we-HPMC uhambelana ngokusondeleyo nokuluka kwayo. Ngokukhetha i-HPMC ngenqanaba elifanelekileyo lokufaka endaweni, umphumo wokugcinwa kwamanzi odaka kunokwenziwa.
Ukuphuculwa kweepropathi zokuhambisa:
Kuba i-HPMC inokwenza ibhulorho enamathele phakathi kwamasuntswana, inokuphucula amandla odaka, ngakumbi xa isetyenziswa ngodaka lobushushu kunye nodaka lwe-theile.
I-HPMC inokuphucula ukusebenza ngokwakha ngokunciphisa ukuphuma kwamanzi kunye nokubonelela ngexesha elide lokusebenza.
Umsebenzi wokwakha:
Ukusetyenziswa kwe-HPMC emdaka kuya kuyiphucula kakhulu intsebenzo yayo yokwakha. I-HPMC yenza ukuba udaka lunezinto ezingcono kunye novimba, ekulula ukufaka kunye nokwakha, ngakumbi ngokweenkcukacha ukuqinisekisa ulwakhiwo olugudileyo.
Ngokuhlengahlengisa isixa kunye noqwalaselo lwe-HPMC, iipropathi ze-ROOOOLOMSTERS of Color zinokuphelelwa kukuziqhelanisa neemfuno ezahlukeneyo zokwakha.
5. Imizekelo yesicelo se-HPMC kwi-cemetion
I-TIILE AYING:
I-HPMC ikakhulu idlala indima yokugcinwa kwamanzi kunye nokutsalwa kwamanzi kwindawo ye-tile. Ngokuphucula ukugcinwa kwamanzi kwe-adhees, i-HPMC inokwandisa ixesha layo evulekileyo, ukubonelela ngexesha lohlengahlengiso okwaneleyo, kunye nokuthintela iithayile ukuba zingatyibilika emva kokwakha.
Isiphumo sokuqaqamba siqinisekisa ukuba ukunamathela akukwenzanga i-SAG ngexesha lokwakha, ukuphucula ukulula kunye nefuthe lokwakhiwa.
I-nodol therliser of hoser:
Kummandla wodonga lodonga lwangaphandle, umsebenzi ophambili we-HPMC kukuphucula ukugcinwa kwamanzi kunye nokuchasana nodaka. Ngokufaka umswakama, i-HPMC inokunciphisa ngokufanelekileyo i-shrinkage kwaye iqhekeze udaka ngexesha lenkqubo yokomisa.
Kuba udaka lokuthintela luneemfuno eziphezulu zomsebenzi wokwakha, isiphumo esihle se-HPMC sinokuqinisekisa ukusasazwa kodaka kodonga, ngaloo ndlela kuphucule intsebenzo yentsebenzo.
Ukuziqulatha udaka:
I-HPMC ekuziqokeleleni isibindi sokwenzela ukuba sinokuqinisekisa ukuba akukho sizathu okanye ukubonwa kwamanzi ngexesha lenkqubo yokwandisa udaka lodaka, ngaloo ndlela
I-6. Ukudibana kwexesha elizayo kwe-HPMC
UKUKHUSELEKELA NOKHUSELEKO LOKUGQIBELA
Ngokuphuculwa kweemfuno zoKhuselo lweNdalo esiNgqongileyo, ukuphuhliswa kweemveliso ezinetyhefu ezinetyhefu kunye ne-biodegrady ze-HPMCID ziya kuba licala elibalulekileyo kwixesha elizayo.
I-HPMME kunye ne-HPMC enobuhlobo obunobuhlobo ayinakunciphisa kuphela impembelelo kwindalo esingqongileyo, kodwa ikwabonelela ngendawo ekhuselekileyo yokusebenza ngexesha lokwakha ngexesha lokwakha.
Ukwenza okuphezulu:
Ngokwenza into exhasa ubume be-molecular ye-HPMC, iimveliso zokusebenza eziphezulu ze-HPMC ze-HPMC ziphuhliswa ukuze zihambelane nezifo zesamente ngeemfuno eziphezulu zomsebenzi.
Umzekelo, ngokuhlengahlengisa inqanaba lokufaka endaweni kunye nemolekyuli ye-HPMC, iimveliso ezinamagqabantshintshi aphezulu kunye nokugcinwa kwamanzi ngamanzi kungaphuhliswa.
Ukusetyenziswa kwengqondo:
Ngokuphuhliswa kwenzululwazi yezixhobo, i-HPMC ephendula i-HPMC isetyenziswa kwisimemo, yenza ukuba ihlengahlengise ukusebenza kwayo ngokobume bokusingqongileyo, njengokulungelelanisa ngokuzenzekelayo ukugcinwa kwamanzi phantsi komswakama wamanzi.
I-HETMPME-EKICMS ELPMC inokuthi ihlazeke ngokufanelekileyo i-HPMC kwaye ibonelela ngenzondelelo, ukugcinwa kwamanzi kunye nokuphuculwa kokusebenza kokwakha kwisimemo semichiza kunye neepropathi zomzimba. Ngokuzikhetha ngokusesikweni kukukhetha kunye nokuSebenza ngokusetyenziswa kwe-HPMC, intsebenzo iyonke i-cemece inokuthi iphuculwe kakhulu ukufezekisa iimfuno zemeko eyahlukeneyo yesicelo. Kwixesha elizayo, oluhlaza, ukusebenza oluphezulu kunye nophuhliso olukrelekrele kwi-HPMC kuya kuqhubela phambili ukusetyenziswa kwayo kunye nophuhliso kwizinto zokwakha.
IXESHA LOKUQALA: Jun-21 ukuya kwi-2024