Ubumsulwa be-hydroxypropyl methylcellulose ekwakheni i-insulation mortar kanye ne-putty powder buthinta ngqo ikhwalithi yokwakha yobunjiniyela, ngakho-ke yiziphi izici ezithinta ubumsulwa be-hydroxypropyl methylcellulose? Ake ngikuphendulele lo mbuzo.
Enqubweni yokukhiqiza i-hydroxypropyl methylcellulose, i-oxygen esele ku-reactor izobangela ukuwohloka kwe-hydroxypropyl methylcellulose futhi yehlise isisindo sama-molecule, kodwa i-oxygen esele ilinganiselwe, inqobo nje uma kungenzima kakhulu ukuxhuma kabusha ama-molecule aphukile i-Disaster. Izinga lokugcwala kwamanzi elibaluleke kakhulu lihlobene kakhulu nokuqukethwe kwe-hydroxypropyl. Amanye amafektri afuna ukunciphisa izindleko nentengo kuphela, kodwa awafuni ukwandisa okuqukethwe kwe-hydroxypropyl, ngakho ikhwalithi ayikwazi ukufinyelela ezingeni lemikhiqizo efanayo yangaphandle.
Izinga lokugcina amanzi le-hydroxypropyl methylcellulose nalo linobuhlobo obuhle ne-hydroxypropyl, futhi kuyo yonke inqubo yokusabela, i-hydroxypropyl inquma nezinga lokugcina amanzi le-hydroxypropyl methylcellulose. Umphumela we-alkaliization, isilinganiso se-methyl chloride ne-propylene oxide, ukuhlushwa kwe-alkali kanye nesilinganiso samanzi kukotini ocolisisiwe konke kunquma ukusebenza komkhiqizo.
Ikhwalithi yezinto zokusetshenziswa, umphumela we-alkalization, ukulawulwa kwesilinganiso senqubo, isilinganiso se-solvents kanye nomphumela we-neutralization konke kunquma ikhwalithi ye-hydroxypropyl methylcellulose, kanti i-hydroxypropyl methylcellulose ethile yenziwa ukuthi incibilike. Ngemva kwalokho, kwakunamafu njengokwengeza ubisi, amanye ayemhlophe njengobisi, amanye ayephuzi, kanti amanye ayecacile futhi esobala. Uma ufuna ukuyixazulula, lungisa kusukela kumaphuzu angenhla. Ngezinye izikhathi i-acetic acid ingathinta kakhulu ukuhanjiswa kokukhanya. Kungcono ukusebenzisa i-acetic acid ngemva kokuxuba. Ithonya elikhulu ukuthi ngabe ukusabela kushukunyiswa ngokulinganayo nokuthi ngabe isilinganiso sesistimu sizinzile (ezinye izinto zinomswakama futhi okuqukethwe akuzinzile, njenge-solvents yokuphinda kusetshenziswe). Eqinisweni, kunezinto eziningi ezidlalayo. Ngokuzinza kwemishini kanye nokusebenza kwabaqhubi abaqeqeshwe kahle, imikhiqizo ekhiqizwayo kufanele iqine kakhulu. Ukudluliselwa kokukhanya ngeke kudlule ububanzi buka-±2%, futhi ukufana kokushintshana kwamaqembu ashintshanayo kumele kulawulwe kahle. Esikhundleni sokufana, ukudluliselwa kokukhanya ngokuqinisekile kuzoba kuhle.
Isikhathi sokuthunyelwe: Meyi-30-2023