Mu nganda zubaka, HPMC ikunze gushyirwa mumazi atabogamye, kandi ibicuruzwa bya HPMC biraseswa byonyine kugirango harebwe igipimo cy’iseswa.
Nyuma yo gushyirwa mumazi adafite aho abogamiye wenyine, ibicuruzwa byihuta bidatatanye nigicuruzwa kitavuwe hejuru; nyuma yo gushyirwa mumazi adafite aho abogamiye wenyine, ibicuruzwa bishobora gutatana kandi bidafatanye hamwe nibicuruzwa bivura hejuru.
Iyo ibicuruzwa bya HPMC bitavuwe bishonga byonyine, agace kayo kamwe gashonga vuba kandi bigakora firime vuba, bigatuma bidashoboka ko amazi yinjira mubindi bice, bikavamo agglomeration na agglomeration. Yitwa ibicuruzwa byihuse kumasoko kurubu. Ibiranga HPMC itavuwe ni: uduce tumwe na tumwe dushonga vuba muri leta zidafite aho zibogamiye, alkaline, na aside, ariko ntishobora gutandukana hagati yuduce duto duto, bikavamo guhuriza hamwe no guhurira hamwe. Mubikorwa nyabyo, nyuma yo gukwirakwiza kumubiri wuruhererekane rwibicuruzwa nuduce twinshi nka poro ya reberi, sima, umucanga, nibindi, igipimo cyo gusesa kirihuta cyane, kandi nta agglomeration cyangwa agglomeration. Mugihe bibaye ngombwa gusesa ibicuruzwa bya HPMC ukwabyo, uruhererekane rwibicuruzwa bigomba gukoreshwa ubwitonzi, kuko bizahuriza hamwe bikabyimba ibibyimba. Niba ari ngombwa gushonga ibicuruzwa bya HPMC bitavuwe ukundi, bigomba gukwirakwizwa kimwe n'amazi ashyushye 95 ° C, hanyuma bikonjeshwa kugirango bishonge.
Ibicuruzwa bitunganijwe neza bya HPMC, mumazi atabogamye, uduce tumwe na tumwe dushobora gutatana nta guhuriza hamwe, ariko ntibizahita bitanga ububobere. Nyuma yo gushiramo mugihe runaka, imiterere yimiti yo gutunganya hejuru irasenywa, kandi amazi arashobora gushonga uduce twa HPMC. Muri iki gihe, ibice byibicuruzwa byarakwirakwijwe kandi byinjijwemo amazi ahagije, bityo ibicuruzwa ntibishobora guteranya cyangwa guhuriza hamwe nyuma yo guseswa. Umuvuduko ukwirakwizwa no kwihuta biterwa nurwego rwo kuvura hejuru. Niba kuvura hejuru ari bike, umuvuduko wo gutatanya uratinda kandi umuvuduko wo kwihuta urihuta; mugihe ibicuruzwa bifite ubuvuzi bwimbitse bifite umuvuduko ukabije kandi byihuta. Niba ushaka gukora uruhererekane rwibicuruzwa bishonga vuba muri iyi leta, urashobora guta umubare muto wibintu bya alkaline mugihe bishonge wenyine. Isoko ryubu risanzwe ryitwa ibicuruzwa bitinda buhoro. Ibiranga ibicuruzwa bya HPMC bivura hejuru ni: mugisubizo cyamazi, ibice bishobora gutatana hamwe, birashobora gushonga vuba muri alkaline, kandi bigashonga buhoro buhoro muburyo butabogamye na aside.
Mubikorwa nyabyo byakozwe, uruhererekane rwibicuruzwa akenshi bishonga nyuma yo gukwirakwizwa hamwe nibindi bikoresho bikomeye mu bihe bya alkaline, kandi igipimo cyacyo cyo gusesa ntaho gitandukaniye n’ibicuruzwa bitavuwe. Irakwiriye kandi gukoreshwa mubicuruzwa bishonga wenyine, nta guteka cyangwa kubyimba. Icyitegererezo cyibicuruzwa gishobora gutoranywa ukurikije igipimo cyo guseswa gisabwa nubwubatsi.
Mugihe cyubwubatsi, bwaba ari sima ya sima cyangwa gypsumu ishingiye kuri slurry, inyinshi murizo sisitemu ya alkaline, kandi umubare wa HPMC wongeyeho ni muto cyane, ushobora gukwirakwizwa kimwe muri ibyo bice. Iyo amazi yongeyeho, HPMC izahita ishonga. Gusa hydroxypropyl methylcellulose irashobora kwihanganira ikizamini cyibihe bine: inzira yimyitwarire igenzurwa neza kugirango itange HPMC, kandi kuyisimbuza biruzuye kandi uburinganire nibyiza cyane. Igisubizo cyamazi cyacyo kirasobanutse kandi kibonerana, hamwe na fibre nkeya. Guhuza ifu ya reberi, sima, lime nibindi bikoresho byingenzi birakomeye cyane, bishobora gutuma ibikoresho byingenzi bikina imikorere myiza. Nyamara, HPMC ifite imyitwarire idahwitse ifite fibre nyinshi yubusa, gukwirakwiza kungingo zidasimbuwe, gufata amazi nabi nibindi bintu, bikaviramo amazi menshi guhumeka mubihe byubushyuhe bwinshi. Nyamara, ibyo bita HPMC hamwe ninyongeramusaruro nyinshi biragoye guhuza hamwe, bityo imikorere yo gufata amazi niyo mibi. Iyo HPMC idafite ubuziranenge ikoreshejwe, ibibazo nkimbaraga nke zidatinze, igihe gito cyo gufungura, ifu, guturika, gutobora no kumena bizaterwa, ibyo bizongera ingorane zo kubaka kandi bigabanye cyane ubwiza bwinyubako. Kimwe ni selile ether, irashobora kugira ibisubizo bitandukanye rwose.
Igihe cyo kohereza: Werurwe-29-2023