Ixabiso le-hydroxypropyl methylcelcelsulose (i-HPMC) e-Itotty Powder yenye yezona zinto ziphambili ezimisela ukusebenza kwe-powder. Ukongezwa kwe-HPMC efanelekileyo kunokuphucula ukusebenza, ukugcinwa kwamanzi, ukunamathela kwamanzi kunye nokuqina komgubo we-putty, ngelixa uyongezelelo kakhulu okanye ongonelanga kuya kuchaphazela isiphumo sokugqibela se-powty powder.
1. Indima ye-HPMC kwi-putty powder
I-HPMC yi-polymer ebizelwe ngamanzi asetyenziswayo nemisebenzi ephambili:
(1) Ukuphucula ukugcinwa kwamanzi
Owona msebenzi ophambili we-HPMC kukuphucula umthamo wokugcina amanzi omgubo, owenza kube nzima ukuba amanzi alahleke, aze anciphise i-powty powder, kwaye unciphise ukugqobhoza kwamanzi.
(2) Ukuphucula ukusebenza
I-HPMC inokuphucula i-qubrity yomgubo we-poty, yenza i-scraung the scoust, inciphise ukunganyangeki kolwakhiwo, ukuphucula ukusebenza ngokwakha, kunye nokunciphisa inani labasebenzi lokwakha.
(3) Ukuphucula ubumbisi
I-HPMC inokuphucula umbilini phakathi kwe-podty powder kunye nesiseko sodonga, thintela isiseko sokungawinanga, kwaye siphucule ukuqina.
(4) Ukuthintela ukutyibilika
Ngexesha lokwakhiwa kwe-faade, i-HPMC inokuthintela ngokufanelekileyo umgubo wokutsala ngenxa yokuntywila, ukuphuculwa komgangatho wokwakha, ngakumbi xa kwakhiwe iingqimba.
2. IZINTO EBUCHULE I-HPMC
Isixa se-HPMC sichaphazeleka zizinto ezininzi, kubandakanya ifomula yendawo yokubeka, indawo yokwakha, kunye nomgangatho we-HPMC.
(1) Ifomula yomgubo we-poty
I-poceble powder idla ngokudityaniswa kwe-calcium enzima (i-calcium calbonate), kabini i-Ash, i-cement, i-lime powder, i-glue powder, njl. Iifomula ezahlukeneyo zineemfuno ezahlukeneyo ze-HPMC. Umzekelo, i-Isty esekwe kwisamente ifuna amanzi amaninzi ekuphenduleni kwe-hydration, ke isixa se-HPMC siya kuphakama.
(2) Indawo yokwakha
Iqondo lokushisa, umswakama, kunye nenqanaba lokufumana amanzi kwi-Clain Clain ikwachaphazela nenani le-HPMC esetyenzisiweyo. Kwiqondo lobushushu obuphezulu kunye nendawo eyomileyo, ukwenzela ukuthintela ukuvela kwamanzi, kuhlala kuyimfuneko ukwandisa inani le-HPMC.
(3) Umgangatho we-HPMC
I-HPMC yeempawu ezahlukeneyo kunye neemodeli zinepropathi eyahlukileyo efana nokubonisa i-viscofity, isidanga sokufaka, kunye nokulunga, kwaye kuneziphumo ezahlukeneyo kwi-powder. I-HPMMC ephezulu ye-HPMC inengxaki yokugcina amanzi, kodwa inokuchaphazela ukusebenza, ke kubalulekile ukukhetha imodeli efanelekileyo ngokwemeko ethile.
3. I-DOSGRAM ecetyiswayo ye-HPMC
Umthamo ocetyiswayo we-HPMC ngokubanzi uyahluka ngokohlobo lwe-poty powder:
(1) I-pollty yodonga ngaphakathi
Umthamo ocetyiswayo we-HPMC uhlala u-0.2% ~ 0.5% (isalathisi se-mass epheleleyo ye-poty powder). Ukuba i-viscosity ye-HPMC iphezulu, idosi ecetyiswayo ikufuphi nexabiso eliphantsi; Ukuba i-vickosity iphantsi, kunokuba njalo ngokufanelekileyo.
(2) i-polly yodonga lwangaphandle
I-Expresty Wallty ifuna ukumelana nokunganyangeki kwemozulu kunye nokunganyangeki, ke isixa se-HPMC songezwa ngokubanzi siphakathi kwe-0.3% ~ 0.6% yokuphucula ukugcinwa kwamanzi kunye nonethession.
(3) Umaleko omdaka
Ukufumana i-subty ye-itty, ukwenzela ukuthintela ukuphulukana namanzi kunye nokuqhekeka, isixa se-HPMC songezelelo kunokuba sinyuswe ngokufanelekileyo, ngokubanzi phakathi kwe-0.4% ne-0.7%.
4. Izilumkiso
(1) Kulumkele ukongeza kakhulu
Ukongeza i-HPMC eninzi kunokubangela i-viscofity yomgubo onokuthi uphakame kakhulu, owenza ukuba ulwakhiwo lube nzima, kwaye unciphise amandla emva kokuphilisa, obangela ukuqhekeza okanye ukungqubana okanye ukuqhekeza.
(2) Khetha imodeli elungileyo
I-HPMC ene-viscofis eyahlukileyo ilungele iintlobo ezahlukeneyo ze-powty powder. Umzekelo, i-HPMC ngohlobo olusezantsi (400 ukuya kwelama-400 ukuya kwengama-40 ilungele udonga olungaphakathi lwangaphakathi, ngelixa i-HPMC enodonga oluphezulu (75,000-100,000ppa s ilungele i-poda yodonga engaphandle okanye i-itty fallty ye-itotty okanye i-ternick ye-itotty ye-itty okanye i-ternick ye-itotty ye-itotty okanye i-ternick ye-itot faket.
(3) Ukusasazeka okufanelekileyo kunye nokuchitheka
I-HPMC kufuneka ichithwe ngokulinganayo ngexesha lenkqubo yokuvelisa ukunqanda ukwahluka okubangelwa kukungavisisani ngqo emanzini. Kucetyiswa ukuba ukongeza ngokuthe ngcembe phantsi kwesantya esisezantsi, okanye ukusebenzisa indlela ye-shorix yokudibanisa nezinye iipowuni kwaye wongeza amanzi ukuze uvuselele.
(4) Sebenzisa ezinye izinto ezongeziweyo
I-HPMC ihlala isetyenziswa ngokudibeneyo kunye nezinye izongezo (ezinje nge-stanch ekrhethe, i-stanch thester powder, njl.
Isixa se-HPMC kwi-potty powder yinto ebalulekileyo echaphazela ukusebenza kunye nomgangatho wemveliso egqityiweyo. Ngokubanzi, isixa sayo songeko siphakathi kwe-0.2% kunye ne-0.6%, ehlengahlengiswa ngokwemigaqo ethile yefomula kunye neemfuno zokwakha. Xa ukhetha i-HPMC, i-viscosity yayo, isidanga sokufaka kunye nezinye iimpawu kufuneka zidityanisiwe ukuqinisekisa ukuba i-powty powder inomgubo ofanelekileyo, imbethensi kunye nokusebenza kwentsebenzo. Kwangelo xesha, indibaniselwano efanelekileyo nezinye izongezo kunye nokusebenzisana indlela echanekileyo yokusasazeka inokuthi isebenzise kakhulu i-HPMC, ngaloo ndlela kuphucule umgangatho opheleleyo we-powty powder.
Ixesha leposi: NgoFebwe-14 ukuya ku-525