HydroxypropypropyLese (HPMC) A na hangata e sebelisoa ka thata ea metsi, e sebelisoa hohle ho meriana, litlolo, lijo le masimong a lijo, haholo-holo ho tokiso ea li-gels. Boitšoaro ba eona ba 'mele le boits'oaro boo boits'oaro bo na le tšusumetso e kholo ka katleho ho lits'ebetso tse fapaneng. Mocheso oa botlokotse oa HPMC GEL ea thepa ea bohlokoa ea 'mele, e amang ts'ebetso ea eona litokisetsong tse fapaneng, tse kang ho lokolloa ha lifilimi, ho ba le botsitso, jj.
1. Tsamaiso le thepa ea hpmc
HPMC ke polymer ea qubu ea metsi e fumanoeng ka ho hlahisa sebaka se habeli, hydroxypropyl le methyl, ka skeleton ea lisele tsa khomphutha. Sebopeho sa eona sa limolek'hule se na le mefuta e 'meli ea mefuta e' meli ea hydroxypropypropyL (-ch2chohch3) le methyl (-ch3). Lintlha tse kang tse fapaneng tse kang tsa hydroxypropyl
Lithabeng tsa metsia, le ts'okeng Ha tikoloho ea kantle (e kang mocheso, matla a ionic, jj.)
2. Tlhaloso le lintlha tse ka amang maikutlo
Mocheso oa borena (mocheso oa borena, T_Gel) Bolela Thapelo eo tharollo ea HPMC e qala ho tiile ha mocheso oa tharollo o hlaha maemong a itseng. Ka mocheso ona, motsamao oa liketane tsa HPMC lileng li tla thibeloa, li etsa sebopeho sa marang-rang se likarolo li tharo, se bakang ntho e kang gel-joalo.
Mocheso oa HPMC o angoa ke lintlha tse ngata, e 'ngoe ea lintlha tsa bohlokoahali ke litaba tsa hydroxypropyl. Ntle le litaba tsa hydroxypropyl, lintlha tse ling li kenyelletsa boima ba li-gel ba solly, boleng ba tharollo, PH
3. Kameho ea hydropxxxxxx content ho 4MMC gel mocheso
3.1 Keketseho ea li-hydropxxxxl e lebisa keketseho ea mocheso oa gel
Mocheso oa botlokotse oa HPMC o amana haufi le tekanyo ea sebaka sa hydroxypropyl ka molek'hule ea eona. Joalokaha litaba tsa hydroxypropyl lia eketseha, palo ea liketane tsa hydrophilic e le melaoana ea li-hpmc molek'hule pakeng tsa molek'hule le metsi. Tšebelisano ena e etsa hore liketane tsa limolek'hule li otlolle ho feta moo, ka tsela eo a fokolisang matla a tšebelisano lipakeng tsa makala a limolek'hule. Ka har'a sebaka se seng sa mahloriso, ho eketsa litaba tsa hydroxypropyl ho ntlafatsa boemo ba Hydration mme bo khothalletsa tokisetso e 'ngoe ea liketane, e le hore sebopeho sa marang-rang se ka thehoa ka mocheso oa marang-rang. Ka hona, mocheso oa borena oa eketseha ka hydroxyproppy e hlaha ka litaba tse eketseha.
HPMC e nang le litaba tse phahameng tsa hydroxypropyl (joalo ka HPMC K15m) Sena ke hobane litaba tsa hydroxypropyl li thatafalletsa limolek'hule ho sebetsana le marang-rang a tlase, a hloka tšebeliso ea marang-rang ho theha sebopeho sa marang-rang se likarolo li tharo. .
3.2 Kamano lipakeng tsa cydropxxxxxl le litaba tsa tharollo
Ho tsepamisa likelello tsa tharollo ke karolo ea bohlokoa e amang mocheso oa botlokotsebe ea HPMC. Ka tharollo ea HPMC ea HPMCC, ka mokhoa o itseng oa litaba o le matla, kahoo mocheso oa ts'ebetso o ka ba matla le haeba hydroxypropyl litaba li tlaase. Ka meaho e tlase, tšebelisano lipakeng tsa limolek'hule tsa HPMC e fokola, 'me tharollo e ka fokotsoa haholo ke gel ea lithemparetjha.
Ha litaba tsa hydroxyproppyl lia eketseha, leha hydrophphilication e eketseha, mocheso o phahameng o ntse o hlokahala ho theha gel. Haholo-holo maemong a mahlomoleng a mahlomoko, mocheso oa borena o eketsa haholo. Sena ke hobane HPMC e nang le litaba tse phahameng tsa hydroxypropy e thata ho ama likhathatso tsa molek'hule, mme ts'ebetso ea bokhachala e hloka matla a futhumatsang a ho hlola matla a ho holisa maikutlo.
3.3 Liphello tsa litaba tsa hydropxxxl mabapi le ts'ebetso ea bokhachane
Ka har'a mefuta e meng ea hydroxypropyl, ts'ebetso ea bolisa e laoloa ke tšebelisano lipakeng tsa hyduration le makala a billialar. Ha litaba tsa hydroxyproping li ka molek'hule ea HPMC e tlase, thibelo e fokola, tšebelisano lipakeng tsa limolek'hule e ka ntšetsa pele sebopeho sa gel. Ha litaba tsa hydroxyproPyL li phahame haholo, tšebelisano lipakeng tsa liketane e fetoha moea, 'me mocheso oa bohahlauli oa eketseha.
Litaba tse phahameng tsa hydroxyproPyL li ka baka keketseho ea tharollo ea tharollo ea HPMC, ka linako tse ling mocheso o eketsa mocheso oa ho tela.
Litaba tsa hydroxypropity li na le tšusumetso e kholo ho mocheso oa borena oaHpmc. Ha litaba tsa hydroxyproppyl lia eketseha, hydrophphilicity ea HPMC e ntse e eketseha le tšebelisano lipakeng tsa liketane tsa molek'hule hangata. Ntho ena ena e ka hlalosoa ke mokhoa oa ho sebelisana le opente lipakeng tsa hyduration le liketane tsa molek'hule. Ka ho fetola boemo ba hydroxypropity.
Nako ea poso: Jan-04-2025