I-sodium carboxymethyl cellulose (i-CMC-Na ngamafuphi) iyinhlanganisela ye-polymer ebalulekile encibilika emanzini, esetshenziswa kabanzi ezimbonini zokudla, imithi, izimonyo, izindwangu, ukwenza amaphepha kanye nezimboni zokwakha. Njenge-thickener evame ukusetshenziswa, i-stabilizer ne-emulsifier,
1. Ukukhetha impahla eluhlaza kanye nokulawulwa kwekhwalithi
Lapho ukhetha i-CMC-Na, kufanele unake ukukhetha imikhiqizo ehlanzekile kakhulu. Izinkomba zekhwalithi zomkhiqizo zihlanganisa izinga lokushintshwa, i-viscosity, ubumsulwa kanye nenani le-pH. Izinga lokushintsha lisho okuqukethwe kwamaqembu e-carboxylmethyl ku-molecule ye-CMC-Na. Ngokuvamile, ukuphakama kwezinga lokushintsha, kungcono ukuncibilika. I-Viscosity inquma ukuvumelana kwesixazululo, futhi ibanga elifanele le-viscosity kufanele likhethwe ngokuvumelana nezidingo zangempela zohlelo lokusebenza. Ngaphezu kwalokho, qinisekisa ukuthi umkhiqizo awunawo iphunga, awunakho ukungcola, futhi uhlangabezana nezindinganiso ezifanele, njengebanga lokudla, izinga lezemithi, njll.
2. Izidingo zekhwalithi yamanzi zokulungiselela isisombululo
Lapho ulungiselela isisombululo se-CMC-Na, ikhwalithi yamanzi asetshenzisiwe ibaluleke kakhulu. Ngokuvamile kuyadingeka ukuthi kusetshenziswe amanzi ahlanzekile noma amanzi akhishwe ukuze kugwenywe ithonya lokungcola emanzini kusixazululo se-CMC-Na. Ukungcola okufana nama-ion ensimbi nama-ion e-chloride emanzini kungase kusabelane ngokwamakhemikhali ne-CMC-Na, kuthinte ukuzinza nokusebenza kwesixazululo.
3. Indlela yokuchithwa kanye nezinyathelo
Ukuhlakazwa kwe-CMC-Na kuyinqubo ehamba kancane, ngokuvamile edinga ukwenziwa ngezinyathelo:
Ukumanzisa ngaphambili: Ngaphambi kokwengeza i-CMC-Na powder emanzini, kunconywa ukuba uyimanzise ngaphambili ngenani elincane le-ethanol, i-propylene glycol noma i-glycerol. Lokhu kusiza ukuvimbela impushana ukuthi ingahlangani ngesikhathi senqubo yokuhlakazeka futhi yakhe isixazululo esingalingani.
Ukondla kancane: Faka kancane kancane i-CMC-Na powder ngaphansi kwezimo ezinyakazayo. Zama ukugwema ukufaka inani elikhulu lempushana ngesikhathi esisodwa ukuze ugweme ukwakheka kwezigaxa kanye nobunzima bokuhlakazeka.
Ukugqugquzeleka okugcwele: Ngemva kokwengeza impushana, qhubeka ugqugquzela ize ichitheke ngokuphelele. Ijubane elishukumisayo akufanele lisheshe kakhulu ukuvimbela ukukhiqizwa kwamabhamuza amaningi futhi kuthinte ukucaca kwesixazululo.
Ukulawulwa kwezinga lokushisa: Izinga lokushisa ngesikhathi senqubo yokuhlakaza linomthelela othile kwizinga lokuhlakazeka. Ngokuvamile, izinga lokushisa eliphakathi kuka-20°C no-60°C lifaneleka kakhulu. Izinga lokushisa eliphezulu kakhulu lingabangela i-viscosity yesixazululo ukuthi yehle futhi ibulale ngisho nesakhiwo se-CMC-Na.
4. Ukugcinwa nokuzinza kwesixazululo
Isixazululo esilungisiwe se-CMC-Na kufanele sigcinwe esitsheni esivalekile futhi sigweme ukuthintana nomoya ukuvimbela ukumuncwa komswakama kanye ne-oxidation. Ngesikhathi esifanayo, ukukhanya kwelanga okuqondile kanye nemvelo yokushisa okuphezulu kufanele kugwenywe ngangokunokwenzeka ukuze kugcinwe ukuzinza kwesixazululo. Ngesikhathi sokugcina isikhathi eside, isixazululo singase siwohloke ngenxa yokukhula kwama-microorganisms, ngakho-ke ungacabangela ukwengeza izilondolozi ezifana ne-sodium benzoate ne-potassium sorbate lapho uzilungiselela.
5. Ukusetshenziswa kanye nokwelashwa kwesixazululo
Uma usebenzisa isixazululo se-CMC-Na, kufanele uqaphele ukuthi ugwema ukuthintana nama-asidi aqinile nezisekelo eziqinile ukuze ugweme ukusabela kwamakhemikhali okuthinta ukuzinza nokusebenza kwesixazululo. Ngaphezu kwalokho, isixazululo se-CMC-Na siyacasula isikhumba namehlo ngezinga elithile, ngakho-ke kufanele ugqoke izinto zokuzivikela ezifanele lapho uzisebenzisa, njengamagilavu, izibuko, njll.
6. Ukuvikelwa kwemvelo kanye nokulahlwa kwemfucuza
Uma usebenzisa i-CMC-Na, kufanele unake ukuvikelwa kwemvelo kwemfucuza. Isixazululo se-CMC-Na sikadoti kufanele siphathwe ngokuhambisana nemithethonqubo efanele ukuze kugwenywe ukungcoliswa kwemvelo. Imfucuza imvamisa ingelashwa nge-biodegradation noma ukwelashwa ngamakhemikhali.
Lapho ulungiselela isisombululo se-sodium carboxymethyl cellulose, kuyadingeka ukucutshungulwa ngokucophelela futhi usebenze kusuka ezicini eziningi ezifana nokukhetha impahla eluhlaza, indlela yokuhlakaza, izimo zokugcina kanye nokwelashwa kokuvikelwa kwemvelo. Kuphela ngaphansi kwesisekelo sokulawulwa okuqinile kwesixhumanisi ngasinye lapho isisombululo esilungisiwe singakwazi ukusebenza kahle nokuzinza ukuze kuhlangatshezwane nezidingo zezinkambu ezihlukene zohlelo lokusebenza.
Isikhathi sokuthumela: Aug-03-2024