Esikhathini se-insulation mortar kanye ne-putty powder, ubukhulu be-hydroxypropyl methylcellulose ubumsulwa buthinta ngokuqondile ikhwalithi yokwakha ubunjiniyela, ngakho-ke yiziphi izici ezithinta ukuhlanzeka kwe-hydroxypropyl methylcellulose?Ukukusiza ukuthi uphendule lo mbuzo namuhla.
Enqubweni yokukhiqiza i-hydroxypropyl methylcellulose, umoya-mpilo osele kugedlela lokusabela uzoholela ekulimazeni kwe-hydroxypropyl methylcellulose futhi kunciphise isisindo samangqamuzana.Nokho, umoya-mpilo osele unomkhawulo, ngakho akunzima ukuphinda unamathisele ama-molecule aphukile.Izinga eliyinhloko lokugcwala kanye nokuqukethwe kwe-hydroxypropyl kunobudlelwane obukhulu, ezinye izimboni zifuna nje ukunciphisa izindleko nentengo, azifuni ukuthuthukisa okuqukethwe kwe-hydroxypropyl, ngakho ikhwalithi ayikwazi ukufinyelela izinga lemikhiqizo efanayo yangaphandle.
Izinga lokugcinwa kwamanzi le-hydroxypropyl methylcellulose kanye ne-hydroxypropyl nalo linobudlelwane obuhle, futhi kuyo yonke inqubo yokusabela, i-hydroxypropyl methylcellulose iphinde inqume izinga lokugcinwa kwamanzi e-hydroxypropyl methylcellulose.Umthelela we-alkalization, isilinganiso se-chloromethane ne-propylene oxide, ukugcwala kwe-alkali kanye nesilinganiso samanzi ukotini ocolisisiwe konke kunquma ukusebenza komkhiqizo.
Izinga lezinto zokusetshenziswa, umphumela we-alkalization, ukulawulwa kwesilinganiso senqubo, isilinganiso se-solvent kanye nomphumela wokungathathi hlangothi, konke kunquma ikhwalithi ye-hydroxypropyl methyl cellulose, enye i-hydroxypropyl methyl cellulose eyenziwe ukuze incibilike ngemva kokuba ubisi luguquguquke kakhulu, okunye okumhlophe okumhlophe, okunye okuphuzi, okunye. ecacile futhi esobala.Uma ufuna ukuyixazulula, lungisa kusuka kumaphuzu angenhla.Kwesinye isikhathi i-acetic acid ingathinta kakhulu ukudluliswa, i-acetic acid isetshenziswa kangcono ngemuva kokuhlanjululwa, umthelela omkhulu noma ukushukuma kokusabela kufana, isilinganiso sohlelo sizinzile (okunye umswakama wezinto ezibonakalayo, okuqukethwe akuzinzile, njengokubuyiswa kwe-solvent), empeleni, ziningi izici ezithintekayo.Ngokuzinza kwemishini kanye nokusebenza kwabaqhubi abaqeqeshiwe, imikhiqizo ekhiqizwayo kufanele izinze kakhulu.Ukudlulisa akumele kudlule ku-±2%, futhi ukushintshwa okufanayo kweqembu elingene esikhundleni kufanele kulawulwe kahle.Ukushintshaniswa okufanayo, ukuhanjiswa kufanele kube kuhle.
Ngakho-ke, ikhwalithi yomkhiqizo enhle inqunywa ngezinto ezingavuthiwe, ubuchwepheshe bokukhiqiza, nezinye izici.Ukulawula okuqinile kuphela kusuka ekugcineni kuya ekugcineni kungakhiqiza imikhiqizo enekhwalithi ezinzile.
Isikhathi sokuthumela: Sep-14-2022