Xa ukhethaHydroxypropyl methylcelculose (hpmc), ukuvavanya ukugcinwa kwayo amanzi sisikhangiso esifanelekileyo, ngakumbi kwizicelo zendawo yokwakha, amayeza, njl. njl njl.
1. Ubume bemolekyuli kunye nobunzima bemolekyuli
Ubunzima be-molecular ye-gancelcel®hpmc kunye nesakhiwo sayo semolekyuli sichaphazela ngokuthe ngqo ukusebenza kwayo. Ngokubanzi, ukuphakama kwesisindo se-HPMC, kungcono ukugcinwa kwamanzi. I-HPMC enenqanaba elikhulu lemolekyuli inesakhiwo se-chain, esinokufumana amanzi amaninzi kwaye senze isakhiwo esizinzileyo se-gene.
Ubunzima obuphezulu be-phumelac: inomhlaba ophantsi emanzini, kodwa unokugcina amanzi, kwaye ulungele izicelo ezineemfuno zokugcina amanzi, ezinje ngodaka lokwakha amanzi, iingubo, njl.
I-HPMC ye-molecular ye-molecular ye-phumcula: Ukugcinwa kwamanzi ahluphekayo, kodwa kulunge kakhulu kulwelo, kufanelekile ukuqiniswa okufuna ukuqina okukhawulezileyo okanye ukomisa ngokukhawuleza.
2. Umxholo weHydropyl
Umxholo weHydroxypropy ubhekisa kumxholo weqela le-hydroxypropy kwi-HPMC Molekyuri, edla ngokuvakaliswa njengepesenti enkulu. Umxholo we-hydroxypropyl ichaphazela ukuluka, i-viscosity kunye nokugcinwa kwamanzi kwi-HPMC.
I-HYDROXCOPYL ye-HPMC: inokuthi ichithwe ngcono emanzini kwaye inyuse i-hydration, ngoko ikuphembeleli okungcono kwaye ilungele ukusetyenziswa kwiindawo eziphakamileyo zokufuma.
I-HYDROXCOPYL ye-HPMC: Ukungabinamntu, kodwa kunokubangela i-viscofity ephezulu, ebaluleke ngakumbi kwezinye izicelo ezinje ngentambo ye-paste.
I-3. Ukungasebenzi
Ukunyibilisela i-HPMC yenye yezona zinto zibalulekileyo ekugwebeni ukugcinwa kwayo kwamanzi. Ukunyibilisela okuhle kuyanceda ukuba kuchithwe kancinci emanzini, ngaloo ndlela zinika umphumo wokugcina amanzi.
Ukubizwa kwamanzi ezifudumeleyo: Uninzi lwe-HPMCS lunyibilika ngokulula kumanzi afudumeleyo. I-HPMC echithiweyo inokwenza isisombululo seColoidal, esincedayo ukuba sihlale simanyiwe kwisamente esinqeni kwaye sithintela amanzi ngokukhawuleza.
I-Solubang Rolity yaManzi aBandayo: kwiimveliso ezifuna ukusetyenziswa kwiindawo zobushushu zeqondo lobushushu, i-HPMC enobunzima bamanzi obungcono kakhulu. Olu hlobo lwe-HPMC lunokunyibilikisa ngokukhawuleza kubushushu begumbi okanye ubushushu obuphantsi ukuqinisekisa ukugcinwa kwamanzi ngexesha lokwakha.
I-4. Ubungakanani be-paunticle
Ubungakanani be-suricle ye-HPMC buchaphazela ngokuthe ngqo inqanaba lokupheliswa kwemali kunye nokugcinwa kwamanzi. I-HPMC ngamasuntswana ahleliyo iyanyibilika ngokukhawuleza kwaye inokukhupha ngokukhawuleza amanzi kwinkqubo, ngaloo ndlela iphucula umsebenzi wayo wokugcina amanzi. Nangona i-HPMC inamasuntswana amakhulu anyibilikisi kancinci, inokwenza umbane ozinzileyo ngakumbi kwinkqubo, ngoko ke ukugcinwa kwamanzi kuninzi kakhulu.
Isuntswana elihle i-HPMCC: Ilungele izicelo ezifuna ukutyeshelwa ngokukhawuleza, zinokukhulula amanzi ngokukhawuleza, kwaye zilungele iimveliso ezifana nodaka oluxubileyo kunye nemikhono efuna i-hydration yokuqala.
I-Puarse I-HPMMC: ifanelekile ngakumbi kwiimeko ezifuna ukugcinwa kwamanzi kangangezihlandlo, ezinje ngesamente ephelileyo yesamente, i-binds ekwakheni izinto zokwakha, njl.
5. Umxholo wokufuma
Umxholo wokufuma kwe-HPMC uza kuchaphazela ukusebenza kwawo. Ukufuma okungaphezulu kunokubangela i-HPMC ukutshintsha ukusebenza kwayo ngexesha lokugcina nokusetyenziswa. Ke ngoko, i-HPMC eyomileyo ihlala inobomi obude baseShelf kunye nokusebenza ngokuzinzileyo. Xa ukhetha, nikela ingqalelo kumxholo wayo wokufuma ukuthintela ukufuma kakhulu umswakaliso echaphazela ukusebenza.
I-6. Ukunyangwa kobushushu
Ukugcinwa kwamanzi i-HPMC kuyahambelana ngokusondeleyo nokunganyangeki kobushushu bayo. Ezinye izicelo zinokufuna i-HPMC ukuze zigcine izilangazelelo kumaqondo obushushu aphezulu. Umzekelo, iingubo zakudala ziya kufuneka zisetyenziswe kumaqondo obushushu aphezulu ngexesha lokwakha. Ukukhetha i-HPMC kunye nokunganyangeki kobushushu obunamandla kunokuqinisekisa ukugcinwa kwamanzi kakuhle ngexesha lokwakha kunye nokuthintela umxholo wokwakha ngokukhawuleza.
7. Uzinzo
Uzinzo lwe-HPMC luya kuchaphazela ukugcinwa kwalo lwamanzi phantsi kwe-PH kunye neemeko zobushushu. I-HPMC eqinileyo inokugcina ukugcinwa kwamanzi ixesha elide kwiindawo ezahlukeneyo, ngakumbi kwibala le-alkaline eyomeleleyo okanye i-acidic efana nesamente okanye i-gypsum. Kubalulekile ukukhetha i-HPMC ngozinzo oluqinileyo. Ukuba uzinzo lwekhemi le-HPMC lihlwempu, ukugcinwa kwamanzi kwalo kungancipha ekuhambeni kwexesha, kuchaphazele umsebenzi wokugqibela.
I-8. I-Adjitives kunye nonyango lomhlaba
Ezinye iimveliso ze-HPMC ziya kongeza unyango olukhethekileyo lonyango okanye imisebenzi yokusebenza ngexesha lenkqubo yokuphucula ukugcinwa kwabo amanzi. Umzekelo, ngokongeza ii-polymers ezithile okanye i-colloids, umthamo wokugcina amanzi we-HPMC unokuphucula ngakumbi. Ukongeza, ezinye iimveliso ziya kuphucula ulwalamano lwabo ngokudibanisa iiarhente zokulwa i-gost, zenza i-hpmc ilunge ngakumbi ngexesha lokusetyenziswa.
9. Iindlela zokuvavanya
Xa ukhetha i-HPMC, ezinye iindlela zovavanyo zinokusetyenziselwa ukuvavanya ukugcinwa kwayo kwamanzi. Umzekelo:
Uvavanyo lokufumana amanzi: Chonga inani lamanzi e-HPMC unokufumana ixesha elithile.
Uvavanyo lwamandla amanzi: Vavanya ubuchule be-Nurincel®HPMC ukuze ugcine amanzi ngexesha lokuxuba kweemeko zokwakha.
Ukuzimisela kwe-viscosity: I-viscosity ichaphazela ngqo i-hydration. Ukugcinwa kwawo kwamanzi kuyagwetywa nguViskosity. I-HPMC ene-viscofity ephezulu ihlala inoxanduva olungcono.
Xa ukhetha ilungeloI-HPMC, kubalulekile ukuqaphela izinto ezininzi ezinje ngobunzima bemolekyuli, i-hydroxypropy yesidanga, ukusasazeka, ukuzinza kobushushu, uzinzo kwimveliso efanelekileyo ye-HPMC ukuqinisekisa ukuba Ukusebenza kokugcinwa kwamanzi kuyahlangabezana neemfuno. Ingakumbi kulwakhiwo kunye nemizi-mveliso yamayeza, ukugcinwa kwamayeza i-HPMC akuchaphazeli ukwenziwa kokwakha, kodwa kunokuchaphazela umgangatho wokugqibela wemveliso, kuya kufuneka ukhetheke ngononophelo olukhulu.
IXESHA LOKUQALA: FEB-21 ukuya ku-525