Hydroxypropyl methylcelculose (hpmc)Ngaba imichiza ye-polymer ye-polymer isetyenziswe ngokubanzi kwizinto zokwakha, ngakumbi kwizifa, iingubo, imingxunya kunye nezinye iimveliso. Owona msebenzi ophambili we-HPMC kukuphucula ukusebenza kobukho, ukuphucula ukugcinwa kwamanzi kwaye kwandise ixesha lokuvula. Njengoko imfuno yezixhobo zomsebenzi eziphezulu kumzi-mveliso wokwakha uqhubeka nokunyuka, ukusetyenziswa kwe-HPMC kufumene ingqalelo ebanzi.
1. Iipropathi ezisisiseko ze-HPMC
I-HPMC yisellulo esinyibiliki esinyibilikisi esinozuko oluhle, i-adherion kunye neepropathi ezinkulu. Ingayiphucula kakhulu indawo yokugcina amanzi, yandisa ixesha lokuvula, kunye nokomeleza ukungaxhathisi kukaSag kunye nokwakha i-isdation yodaka. Ezi propati zintle zenza i-HPMC yenye yeendlela eziqhelekileyo ezifanayo kububuthathaka nangezinye izinto zokwakha.
2. Inkqubo eyomisayo yodaka
Inkqubo yokomisa yodaka ihlala ibandakanya iinxalenye ezimbini: ukukhutshwa kwamanzi kunye ne-quardration impendulo. I-Shranti yokuHlawula yindlela ephambili kunyango lokuhlala, kodwa ukukhukuliseka kwamanzi ngexesha lomomo kudlala indima ebalulekileyo. Ukufuma komswakama kwisamente kufuneka kususwe ngokuthe ngcembe kwinkqubo yokuphuma kwe-levaund, kwaye isantya sale nkqubo ichaphazele ngokuthe ngqo umgangatho, ukuqina kwendlela ebekiweyo yokwakha igqityiwe emva kokwakha.
I-3. Isiphumo se-HPMC kwiSantya soMlo
Impembelelo ye-Nurincel®HPMMC yezantya zokoma kodaka iboniswa ikakhulu kwimiba emibini: ukugcinwa kwamanzi kunye nolawulo lokuphuma kwamanzi kunye nolawulo lokuphuma kwamanzi.
(1) Ukuphuculwa kokugcinwa kwamanzi kwaye kuthoba isantya esomileyo
I-HPMC inamahreyimu aqinileyo kunye nezakhiwo zokugcina amanzi. Inokwenza ifilimu ye-hydding kwi-hirdation yodaka ukunciphisa ukuphuma kwamanzi. Okungcono ukugcinwa kwamanzi kodaka, kucotha kancinci ukuba amanzi agcinwe phezu kodaka kangangexesha elide. Ke ngoko, emva kongeze i-HPMC, inkqubo yokuphuma kwamanzi kudaka iya kuthi ithintelwe kwinqanaba elithile, imphumo ixesha lokuko elonge ixesha elide.
Nangona inciphisa ukuncipha kwamanzi amanzi kunokutshintsha ixesha lokukomala kodaka, le nkqubo yokothusayo icocekile iyingenelo, njengoko inokuthintela iingxaki zomomo ofana nodaka kunye nokuqinisekisa umgangatho wokwakha.
(2) Uhlengahlengiso lwenkqubo ye-hydration yesamente
Indima ye-HPMC e-cemetion yesamente ayiphelelanga ekuphuculeni ukugcinwa kwamanzi. Ingalawula kwakhona inkqubo ye-qumed. Ngokutshintsha i-ratheology yodaka, i-HPMC inokuchaphazela inqanaba lokunxibelelana phakathi kwamasuntswana kunye nokufuma, ngaloo ndlela echaphazela inqanaba lomhlokhodi. Ngamanye amaxesha, ukongezwa kwe-thantcl®hpmc kunokuthintela kancinci inkqubo ye-qumed, ebangela udaka lunyanga kancinci. Esi siphumo sihlala sifezekiswa ngokuhlengahlengisa ubungakanani bobungakanani be-cemetion swicle yokusasaza kunye nomfowunelwa we-certiments, ngaloo ndlela ichaphazela isantya esomileyo.
(3) Ukulungelelaniswa komsulwa wendalo
I-HPMC inokuphucula ukunganyangeki kwe-elser, esenza udaka lube luziqhelanisa nokuziqhelanisa nokuziqhelanisa nendalo. Kwindawo eyomileyo, umphumo wokugcinwa kwamanzi we-HPMC kubaluleke kakhulu. Ingayilibazisa ngempumelelo ilahleko yokufuma komhlaba kwaye inciphise imingxunya engaphezulu yesantya esigqithisileyo. Oku kubaluleke kakhulu kwiimeko ezishushu okanye ezomileyo. Ke ngoko, i-HPMC ayilungelelanisi ireyithi yokuphuma kwamanzi, kodwa ikwandisa ukwenziwa kweemeko zodaka kwindawo yangaphandle, ngokungathanga ngqo kwixesha lokwenza.
I-4. IZINTO EBUCHULE IZATHU
Ukongeza ukongezwa komxholo we-HPMC, isantya somatshini sodaka siyachaphazeleka kwezinye izinto ezininzi, kubandakanya:
Umyinge wokungcola: Umyinge wesamente kumanzi kunye nomyinge we-Aggregate ePhakamileyo kwi-Aggregate uya kuchaphazela umxholo wokuthantamisa wodaka kwaye ke isantya esomasayo.
Imeko yendalo esingqongileyo: Iqondo lobushushu, umonakalo kunye neemeko zokujikeleza komoya zizinto ezibalulekileyo ezichaphazela isantya somanzi. Kwindawo yobushushu obuphezulu kunye nokufuma okuphantsi, amanzi aphuma ngokukhawuleza, kunye ne-vice.
Ubuninzi bokutsala: Ubunzima bodaka buchaphazela ngokuthe ngqo inkqubo yayo yokomisa. I-Stricker Screed zihlala zithatha ixesha elide ukophuma ngokupheleleyo.
5. Ukuqwalaselwa kwesicelo esisebenzayo
Kwizicelo ezisebenzayo, iinjineli zokwakha kunye nabasebenzi bokwakha zihlala zifuna ukulinganisa isantya somanzi sodaka ngokuphumelela kolwakhiwo. Njengomqanda, i-HPMC inokulibazisa isantya esomileyo, kodwa eli nqaku liyingenelo kakhulu kwiindawo ezifuna ukugcinwa kuyo. Umzekelo, kubushushu obuphezulu, iindawo zokumisa umoya, i-HPMC inokuthintela ngokuphumelelayo ukoma komhlaba kunye nokuqhekeza, ukuqinisekisa ukuba ixesha lokuvula kunye nokuvula ixesha elide lokulala.
Nangona kunjalo, kwiimeko ezithile, ezinjengeeprojekthi ezifuna ukomisa okuthe kratya kodaka, kunokuba yimfuneko ukulawula isixa seI-HPMCYongezwa okanye ukhethe ifomula engabinayo i-HPMC ukukhawulezisa inkqubo yokomisa.
Njengomntu ofundwayo, i-Nuincel® HPMC inokuphucula ngokufanelekileyo ukugcinwa kwamanzi ngodaka, kwandise ixesha lokuvula, kwaye ngokungathanga ngqo kuchaphazela isantya sodaka. Emva kokongeza i-HPMC, isantya sowoyikisayo sodaka esidla ngokucothisisa, esinefuthe elihle malunga nokuphepha iingxaki ezinje ngokwakhiwa. Nangona kunjalo, utshintsho kwizantya zokomisa ziyachaphazeleka zizinto ezahlukeneyo ezinje ngodaka kunye neemeko zokusingqongileyo. Ke ngoko, kwizicelo ezenziwayo, isixa se-HPMC kufuneka sikhethe ngokufanelekileyo ngokweemeko ezithile zokufezekisa okona kulungileyo nokwakha.
IXESHA LOKUQALA: UJan-10 ukuya ku-1525