Yazisa:
I-HydroxypropyTylcethylcelcelcelcelcelcelcelcel Phakathi kwezicelo zayo ezininzi, i-HPMC isetyenziswa ngokubanzi kwishishini lokwakha ngoncedo lwalo lokugcina amanzi.
Ukugcinwa kwamanzi yipropathi ebalulekileyo echaza intsebenzo yezinto zokwakha ezifana nodaka, isamente kunye nekhonkrithi. Xa i-HPMC yongezwa kwezi zixhobo, inokunyusa kakhulu umthamo wokugcina amanzi, okukhokelela ekungeneni okungcono, kuncitshiswe i-shrinkage encitshisiweyo kunye namandla anyukayo.
Nangona kunjalo, izinto ezininzi zinokuchaphazela iipropathi zokugcina amanzi kwi-HPMC. Eli nqaku lifungela ezi zinto kunye nefuthe lazo kwindlela yokusebenza kwamanzi kwi-HPMC.
Izinto ezichaphazela ukugcinwa kwamanzi kwe-HPMC:
1. Ubunzima bemolekyuli:
Ubunzima bemolekyuli ye-HPMC buchaphazela kakhulu iipropathi zayo zokugcina amanzi. Ii-HPMM eziphezulu ze-rolecular ze-roleculac ibonakalisa ukugcinwa kwamanzi okungcono ngenxa yeepropathi zabo ezingcono.
Ubunzima be-MPMC bunokulawulwa ngexesha lokuqulunqa, kwaye abavelisi banokuvelisa amabakala ahlukeneyo kwi-HPMC ngemilinganiselo yemolekyuli eyahlukileyo yokufezekisa iimfuno ezithile zesicelo.
2. Ubushushu:
Ubushushu yenye into ephambili echaphazela umthamo wokugcina amanzi kwi-HPMC. Ngamaqondo obushushu asezantsi, umthamo wokugcinwa kwamanzi we-HPMC uyancipha, okukhokelela ekuzifinyelweni kakhulu kunye nokwanda kwe-shrinkige.
Kwelinye icala, i-HPMC ibonisa ukugcinwa kwamanzi okungcono kumaqondo obushushu aphezulu, okwenza ilungele ukusetyenziswa kwimozulu eshushu nasehlotyeni.
3. PH:
Ixabiso le-pH lendawo apho isetyenziselwe i-HPMC ikwachaphazela umthamo wokugcina amanzi. I-HPMC ibonisa ukugcinwa okungcono kwamanzi kwindawo engathathi hlangothi okanye kancinci ialkaline PH.
Kwimeko ye-acidic, umthamo wokugcinwa kwamanzi we-HPMC uyancipha, okukhokelela kulwakhiwo olugwenxa kwaye wanyusa ukuncitshiswa kwezixhobo zokwakha.
4. Umthamo:
Isixa se-HPMC esongezwe kwizinto zokwakha ezinokuthi zichaphazele kakhulu umthamo wayo wokugcina amanzi. Imali efanelekileyo ye-HPMC ixhomekeke kwisicelo esithile kunye nezinye iipropathi zezinto ezibonakalayo.
I-HPMC egqithisileyo iya kukhokelela ekunyuseni i-viscofity, ukuncitshiswa kwenkqubo kunye nokwanda kwe-shrinkage. Kwelinye icala, ubungakanani be-HPMC ikhokelela ekugcinweni kwamanzi amnyama, okukhokelela ekunciphiseni amandla kunye nokunyusa ukuqhekeka.
5. Ixesha eliqingqiweyo:
Ixesha lokuxuba le-HPMC enezinto zokwakha ichaphazela umthamo wayo wokugcina amanzi. Ixesha lokuxuba elaneleyo linokuqinisekisa ukusasazeka kwamasuntswana ee-HPMC kunye nokugcinwa kwamanzi okungcono.
Ixesha lokuxuba elingenaneleyo linokukhokelela kwi-subricle ityhefu ye-HPMC, enokukhokelela ekunciphiseni ukugcinwa kwamanzi kunye neminye imiba yokusebenza.
6. Uhlobo lwezinto zokwakha:
Uhlobo lwezinto zokwakha ezisetyenzisiweyo kwi-HPMC ikwachaphazela amandla ayo okubambisa amanzi. Izinto ezahlukeneyo zifuna amanqanaba ahlukeneyo okugcinwa kwamanzi, kwaye i-HPMC inokulungelelaniswa ukufezekisa iimfuno ezithile zezinto.
Umzekelo, udaka lufuna umthamo wokugcina amanzi, ngelixa ikhonkrithi ifuna umthamo wokugcina amanzi. Ke ngoko, amabakala ahlukeneyo e-HPMC aqulunqwa ngezinto ezahlukeneyo zokwakha.
ukuququmbela:
Kwisishwankathelo, ukugcinwa kwamanzi yipropathi ephambili echaza intsebenzo yezinto zokwakha. I-HPMC yiarhente yokugcina amanzi ebalaseleyo, enokuphucula amandla okugcina amanzi esamente, udaka, ikhonkrithi kunye nezinye izinto zokwakha.
Nangona kunjalo, iintlobo ezahlukeneyo, ezinjengokulinganisela kwemolekyuli, ubushushu, i-PH, ixesha lokuxuba, kunye nohlobo lwezinto zokwakha ezisetyenzisiweyo kwi-HPMC, zinokuchaphazela iipropathi zayo zokugcina amanzi.
Abavelisi kufuneka bathathele ingqalelo ezi zinto kwaye bacwangcise iipropathi kunye nenani le-HPMC kwizicelo ezithile zokwakha ukufezekisa ukugcinwa kwamanzi ngokugqibeleleyo kunye nezinye izibonelelo zomsebenzi.
I-Post Ixesha: Aug-08-2023