I-HPMC (Hydroxypropyl Methylcelcelcelose) yi-Polymential Polymer esetyenziswa ngokubanzi esetyenziswa ngamayeza, ukutya kunye neshishini. Yenziwe kwi-sellyulied yendalo eguqulwe kakuhle kwaye inee-smorabilies ezilungileyo kunye nokuzinza. Ngokubhekisele ekubeni i-HPMC inokuchithwa emanzini ashushu, kufuneka ihlaziywe kubudlelwane phakathi kweempawu zayo zokuchithwa kunye nobushushu bamanzi.
1. Iimpawu zokuchitha ze-HPMC
I-HPMC yi-Infor-Falline ye-Inser eselunxwemeni enokuphelisa amanzi abandayo kwaye yenze isisombululo esibonakalayo okanye se-translucent sloidal. Ukunyibilisela kwalo kuchaphazeleka kakhulu kubushushu, eboniswa ikakhulu kwezi zinto zilandelayo:
I-Soloubaty yeqondo lobushushu: kumanzi abandayo (ihlala ingezantsi kwe-40 ° C), amasuntswana e-HPMC anokukhawulezisa amanzi kunye nokudumba, ngokuthe ngcembe ukuba enze isisombululo.
Ukusasazeka kwamanzi okushushu: I-HPMC ayifakwanga kumaqondo obushushu aphezulu, kodwa inokusasazeka ukuba yenze ukunqunyanyiswa. Xa amanzi epholile kubushushu obufanelekileyo, amasuntswana aqala ukunyibilikisa.
2. Ukudalwa kweGamo lamanzi ashushu
Ukusebenza kwe-HPMC kumanzi ashushu kunxulumene ngokusondeleyo neqondo lobushushu kunye nenkqubo yesisombululo:
Ayinyibili ngokuthe ngqo emanzini ashushu: kubushushu obuphakathi (ngokufuthi ngaphezulu kwe-60 ° C), amasuntswana e-HPMC aya kuphulukana nezobulelo kwaye enze isakhiwo senethiwekhi engafakwanga. Le phenomeno ibizwa ngokuba yi "Ngcwadi ye-Thermal", oko kukuthi, iimolekyuli ze-HPMC ahlanganisene ngamanzi ashushu nge-intermogen hydrogen ye-interpogen ye-hydrogen.
Indlela efanelekileyo yokuphelisa: Yongeza i-HPMC yamanzi ashushu kwaye uvuselele ngokucocekileyo ukwenza ukusasazeka okuzinzileyo. Njengoko iqondo lobushushu lihla, i-fanomenon ye-Irmal iphakanyisiwe, kwaye amasuntswana aya kuphinda afumane amanzi kwaye ngokuthe ngcembe anyibilikise.
I-3. Iindlela zokuchitha kwizicelo ezenziwe
Ukwenzela ukuphucula ukusebenza ngempumelelo kwe-HPMC kunye nokufana kwesisombululo, ezi ndlela zilandelayo zihlala zisetyenziswa:
Indlela eshushu nebandayo yokudibanisa amanzi: Okokuqala yongeza i-HPMC yamanzi ashushu malunga nama-70 ° C ukusasaza i-ageGlomeration, emva koko uyaqhubeka nokunyibilikiswa kwenkqubo yokupholisa de ichithwe ngokupheleleyo.
Indlela yokusasazwa kwe-powder omileyo: Hlanganisa ezinye iipowuni ezinyibilikayo (njengeswekile), kwaye ngokuthe ngcembe yongeza isantya esibandayo sokunyibilika.
4. Izilumkiso
Khusela amaqondo obushushu amaninzi: i-HPMC inokuphulukana nomoya ngaphezulu kobushushu bayo bokuhlutha (ihlala iphakathi kwe-60-75 ° C).
Shill Well: qiniseka ukuba amasuntswana asasazeke kakuhle xa esongeza amanzi ukuthintela ukwenziwa kweepullings ezinzwayo.
I-HPMC ayinyibili ngokuthe ngqo emanzini ashushu, kodwa inokusasazeka emanzini ashushu ukwenza ukumiswa, okuya kunyibilika emva kokupholisa. Ke ngoko, indlela yokuchithwa ngokuchanekileyo ibalulekile ekusebenzeni kwayo. Kwizicelo, iimeko zokuchitha iimeko kufuneka zilungiswe ngokweemfuno ezithile ukunika umdlalo opheleleyo kwisiza sayo, ukuzinza kwefilimu.
Ixesha lasemva: ngoFebruwari-15-2025