01. Umahluko phakathi kwe-hydroxypropyl methyl yobuxoki kunye ne-hydroxypropyl methyl ekumgangatho ophezulu
Inkangeleko: Isitatshi esimsulwa i-HPCM ibonakala ifana kakhulu, phakathi kwe-0.3 kunye ne-0.4 g/ml. I-Amylum inamathela kwisitatshi ngoko ke i-HPCM lulwelo kwaye aluxinezelekanga kangako kunezicoci eziqhelekileyo.
Iimeko: isitatshi esigcwele isitatshi, umgubo we-hpm, ifayibha phantsi kwe-microscope okanye iglasi yokukhulisa, i-HPCM uhlobo lwesitatshi esinokulawula isitatshi okanye isitatshi kunye neelentile.
Ivumba: I-hydroxypropyl methylcellulose ecocekileyo i-HPMC ayinavumba i-ammonia, istatshi kunye notywala; i-hydroxypropyl methylcellulose exutyiweyo i-HPMC inokunuka zonke iintlobo zevumba, nokuba ayinancasa, iya kuziva ibuthathaka iShen.
Isisombululo samanzi: isisombululo samanzi esicocekileyo, i-HPMC methylcellulose demethoxypropyl brinzolamide sicacile, izinga lokugcina amanzi liphantsi ≥ 97%; i-diluted hydrolyzed cellulose-diluted HPMC hydrolyzed cellulose ixutywe ne-hydrolyzed cellulose ixutywe ne-hydrogen, izinga lokugcina amanzi lincinci kakhulu, izinga lokugcina amanzi lincinci lifikelela kwi-80%.
02. Ukugcinwa kwe-methyl cellulose kubushushu obuphezulu luphawu olubalulekileyo lokumisela umgangatho we-methyl cellulose ether. Izinto ezifana nobushushu bomoya, ubushushu bomoya kunye nesantya somoya zichaphazela ukuguquguquka kwemveliso ye-samente slurry kunye ne-gypsum. Ke ngoko, ukongeza inani elifanayo leemveliso ze-HPMC ngamaxesha ahlukeneyo, kukho umahluko othile ekusebenzeni kakuhle kokonga amanzi. Kwinkqubo ethile yokusebenza, isiphumo se-serosa yokufumisa sinokulungiswa ngokunciphisa inani le-HPMC eyongeziweyo. I-hydroxypropyl methylcellulose esemgangathweni ophezulu i-HPMC inokusombulula ngempumelelo ingxaki yokugcina amanzi kubushushu obuphezulu.
I-methyl cellulose ekumgangatho ophezulu inokusasazwa ngokulinganayo nangokufanelekileyo kwi-samente mortar kunye neemveliso ze-plastering, yenze ifilimu eqinileyo, ekhutshwa kancinci kancinci kwi-base layer kwaye yenze i-hydrophilic reaction kunye nezinto ezi-inorganic curling, ngaloo ndlela iqinisekisa amandla kunye nokuqina. I-HPMC cellulose methyl propoxylate isemgangathweni kwaye iyafana, kwaye i-oxygen ye-ethyl bromide kunye ne-propionic acid groups kwi-molecular cellulose chain iyafana, nto leyo ephucula i-oxygen kunye ne-hydrogen bonding ye-atom nganye ephambili ye-hydroxyl kunye ne-ether. Amanzi aphantsi anokuguqula amanzi akhululekileyo abe ngamanzi agcina ulusu, ngaloo ndlela elawula ngempumelelo ukufuma kwamanzi, evelisa ubushushu, kunye nokufuma okuphezulu okusekelwe emanzini.
Ngenxa yokwakhiwa kwamaqondo obushushu aphezulu ehlotyeni, ukuze kufezekiswe isiphumo sokonga amanzi, kuyimfuneko ukongeza iimveliso ze-HPMC ezikumgangatho ophezulu ngokwefomyula, kungenjalo kuya kubangela iingxaki ezinje ngokoma okugqithisileyo, amandla aphantsi, ukuqhekeka, ukutyhafa kunye nokuyeka ukusebenza, kwaye kwandise ubunzima bokwakha kubasebenzi. Ngelixa ukwehlisa amaqondo obushushu, kunokwenzeka ukunciphisa kancinci kancinci inani le-HPMC elongeziweyo kwaye ufumane isiphumo esifanayo sokonga amanzi.
Ixesha lokuthumela: Epreli-21-2023