Ibintu bifasha mu kubika amazi muri hydroxypropyl methyl cellulose

Uko ubushyuhe bwaHPMChydroxypropyl methyl cellulose, ni ko imikorere myiza yo kubika amazi. Ubukana ni ikintu cy'ingenzi mu mikorere ya HPMC. Muri iki gihe, abakora HPMC batandukanye bakoresha uburyo butandukanye n'ibikoresho kugira ngo bamenye ubukana bwa HPMC. Uburyo bw'ingenzi ni Haake Rotovisko, Hoppler, Ubbelohde na Brookfield, n'abandi.

Ku gicuruzwa kimwe, ibisubizo bya viscosity bipimwe hakoreshejwe uburyo butandukanye biratandukanye cyane, bimwe na bimwe biratandukanye cyane. Kubwibyo, iyo ugereranya viscosity, bigomba gukorwa hagati yuburyo bumwe bwo gupima, harimo ubushyuhe, rotor, nibindi.

Ku bunini bw'uduce, uko agace gato kaba gato, ni ko amazi arushaho kugumana neza. Uduce tunini twa eteri ya cellulose duhura n'amazi, ubuso buhita bushonga bugakora jeli yo gupfunyika ibikoresho kugira ngo wirinde ko molekile z'amazi zikomeza kwinjira, rimwe na rimwe kuvanga igihe kirekire ntibishobora gushonga kimwe, hagakorwa umuti w'ibirungo cyangwa agglomerate. Gushonga kwa eteri ya cellulose ni kimwe mu bintu byo guhitamo eteri ya cellulose. Ubutonyanga ni urwego rw'ingenzi rw'imikorere ya eteri ya methyl cellulose. MC kuri mortier yumye ikenera ifu, amazi make, n'ubutonyanga bwa 20% ~ 60% munsi ya 63um. Ubutonyanga bugira ingaruka ku gushonga kwaHPMChydroxypropyl methyl cellulose ether. MC isanzwe iba ifite granular kandi ishobora gushonga byoroshye mu mazi idateranyije, ariko umuvuduko wo gusenyuka uba muto cyane, bityo ntikwiriye gukoreshwa muri mortier yumye. Muri mortier yumye, MC ikwirakwizwa hagati y’ibikoresho byuzuye, ibintu bito n’ibikoresho byo gusima nka sima, kandi ifu nziza gusa ni yo ishobora kwirinda gufungana kwa methyl cellulose ether iyo ivanze n’amazi. Iyo MC yongereye amazi mu gushonga agglomerate, biragoye cyane kuyitatanya no kuyishongesha. MC ifite imiterere ikomeye ntabwo ipfa ubusa gusa, ahubwo inagabanya imbaraga za mortier yo mu gace. Iyo mortier yumye nk'iyo yubatswe ahantu hanini, umuvuduko wo gushonga wa mortier yumye yo mu gace ugabanuka cyane, bigatuma habaho gucika kw'ingufu bitewe n'igihe gitandukanye cyo gushonga. Ku mortier yo gutera imashini, kubera igihe gito cyo kuvanga, imiterere iba iri hejuru.

Muri rusange, uko viscosity irushaho kuba nyinshi, niko ingaruka zo kubika amazi ziba nziza. Ariko, uko viscosity irushaho kuba nyinshi, niko uburemere bwa molekile ya MC burushaho kuba bwinshi, kandi imikorere yo gusenyuka izagabanuka uko bikwiye, ibyo bigira ingaruka mbi ku mbaraga n'imikorere y'ubwubatsi bwa mortical. Uko viscosity irushaho kuba nyinshi, niko ingaruka zo gushonga zigaragara cyane, ariko ntabwo bingana n'isano. Uko viscosity irushaho kuba nyinshi, mortical itose izaba ifatana cyane, haba mu bwubatsi, mu mikorere y'icyuma gifatana no gufatana cyane n'ibikoresho by'ibanze. Ariko ntabwo ari byiza kongera imbaraga z'imiterere ya mortical itose. Mu gihe cyo kubaka, imikorere yo kurwanya gushonga ntabwo igaragara. Ahubwo, ether zimwe na zimwe za methyl cellulose zimeze nk'iziciriritse ariko zahinduwe zifite imikorere myiza mu kunoza imbaraga z'imiterere ya mortical itose.

Uko eteri ya selulosi yongerwa muri morti, ni ko amazi agumana neza, ni ko amazi agumana neza.

Ubuto bw'amazi bwa HPMC bufite ingaruka ku kubika amazi, muri rusange, ku buryo bungana kandi butandukanye bwa ether ya methyl cellulose, mu gihe yongewemo ingano imwe, uko amazi arushaho kuba meza kurushaho.

Kubika amazi kwa HPMC bifitanye isano n'ubushyuhe bw'ikoreshwa, kandi kubika amazi kwa eteri ya methyl cellulose biragabanuka uko ubushyuhe bwiyongera. Ariko mu ikoreshwa ry'ibikoresho nyabyo, ahantu henshi ha sima yumye akenshi haba hari ubushyuhe bwinshi (buri hejuru ya dogere 40) mu gihe cy'ubwubatsi mu gice gishyushye, nko gupfuka sima mu mpeshyi, akenshi byihutisha gukomera kwa sima no gukomera kwa sima yumye. Kugabanuka k'umuvuduko wo kubika amazi bitera kumva ko ubushobozi bwo kubaka no gucika kw'amazi bigira ingaruka. Muri iki gihe, kugabanya ingaruka z'ubushyuhe biba ingenzi cyane. Nubwo kongeramo eteri ya methyl hydroxyethyl cellulose bifatwa nk'ibiri ku isonga mu iterambere ry'ikoranabuhanga, kwishingikiriza kwayo ku bushyuhe bizakomeza gutuma imiterere ya sima yumye igabanuka. Nubwo ingano ya methyl hydroxyethyl cellulose (formula yo mu mpeshyi) yiyongera, ubwubatsi n'ubudacika bw'amazi ntibishobora guhaza ibyifuzo by'ikoreshwa. Binyuze mu buryo bwihariye bwo kuvura MC, nko kongera urugero rwa etherification, ingaruka zo kubika amazi za MC zishobora gukomeza kugira ingaruka nziza mu gihe cy'ubushyuhe bwinshi, ku buryo ishobora gutanga umusaruro mwiza mu gihe cy'ibihe bikomeye.