1. Uhlolojikelele lwe-methyl hydroxyethyl cellulose (MHEC)
I-Methyl hydroxyethyl cellulose (MHEC) iyi-ether engeyona ionic cellulose etholwe ngokuguqulwa kwe-methylation ngesisekelo se-hydroxyethyl cellulose. Ngenxa yesakhiwo sayo esiyingqayizivele samangqamuzana, i-MHEC ine-solubility enhle, ukuqina, ukunamathela, ukwakheka kwefilimu kanye nomsebenzi ongaphezulu, futhi isetshenziswe kabanzi ekugqokeni, izinto zokwakha, amakhemikhali nsuku zonke nezinye izinkambu.
2. Uhlolojikelele lwama-stripper kapende
I-Paint strippers amalungiselelo amakhemikhali asetshenziselwa ukususa izinto ezingaphezulu njengezinsimbi, izinkuni, namapulasitiki. Izihlubuki zikapende zendabuko kakhulukazi zithembele ezinhlelweni ezincibilikayo ezinokhahlo, njenge-dichloromethane ne-toluene. Nakuba la makhemikhali esebenza kahle, anezinkinga ezifana nokuguquguquka okukhulu, ubuthi kanye nobungozi bemvelo. Ngokukhula kwemithetho eqinile yezemvelo kanye nokuthuthukiswa kwezidingo zendawo yokusebenza, izihlubu zikapende ezisekelwe emanzini nezinobuthi obuphansi seziphenduke inkambiso emakethe.
3. Indlela yokusebenza ye-MHEC kuma-strippers kapende
Kuma-strippers kapende, i-MHEC idlala indima ebalulekile njenge-thickener ne-rheology modifier:
Umthelela wokujiya:
I-MHEC inomphumela omuhle wokuqina ezinhlelweni ezisekelwe emanzini. Ngokulungisa i-viscosity ye-stripper kapende, i-MHEC ingenza i-stripper kapende inamathele endaweni eqondile noma ethambekele ngaphandle kokugoqa. Lesi sakhiwo sibaluleke kakhulu phakathi nokufakwa kwezihluthulelo zikapende ngoba sivumela isicweci sikapende ukuthi sihlale endaweni okuqondiwe kuyo isikhathi eside, ngaleyo ndlela sithuthukise umphumela wokuhlubula upende.
Zinzisa isistimu yokumiswa:
Ama-stripper kapende ngokuvamile aqukethe izithako ezihlukahlukene ezisebenzayo, ezingase zihlanganise noma zizinze ngesikhathi sokugcina. Ngokuthuthukisa i-viscosity yesakhiwo sesisombululo, i-MHEC ingavimbela ngokuphumelelayo ukuchithwa kwezinhlayiya eziqinile, igcine ukusabalalisa okufanayo kwezithako, futhi iqinisekise ukusebenza okuzinzile kwe-stripper yepende.
Lungisa izakhiwo ze-rheological:
Ukusetshenziswa kwama-strippers kapende kudinga ukuthi ibe nezakhiwo ezinhle ze-rheological, okungukuthi, ingageleza kahle lapho kusetshenziswa amandla angaphandle, kodwa ingaqina ngokushesha lapho imile. Isakhiwo se-molecular chain ye-MHEC sinikeza izindawo ezinhle zokunciphisa i-shear, okungukuthi, emazingeni aphezulu e-shear, i-viscosity yesisombululo izokwehla, okwenza kube lula ukusebenzisa umdwebo wepende; ngenkathi kumazinga aphansi we-shear noma esimweni esimile, i-viscosity yesisombululo iphezulu, esiza izinto ezibonakalayo zibe ukugqoka okufanayo endaweni ehlosiwe.
Nyusa ukwakhiwa kwefilimu:
Phakathi nenqubo yokuhlubula upende, i-MHEC ingasiza isihluli sikapende senze ifilimu efanayo endaweni okuqondiswe kuyo. Le filimu ayikwazi nje ukwandisa isikhathi sesenzo sezithako ezisebenzayo, kodwa futhi ithuthukise ikhono lokumboza le-stripper yepende ngezinga elithile, ukuze likwazi ukungena ngokuphumelelayo kuzo zonke izingxenye zokugqoka.
4. Indlela yokusebenzisa i-MHEC kuma-stripper kapende
Ukulungiswa kwesisombululo se-aqueous:
I-MHEC ivame ukuba khona ngefomu lempushana futhi idinga ukulungiswa ibe yisisombululo esinamanzi ngaphambi kokusetshenziswa. Umkhuba ojwayelekile uwukufaka kancane kancane i-MHEC emanzini anyakaziswayo ukuze kugwenywe ukuhlangana. Kumele kuqashelwe ukuthi ukuncibilika kwe-MHEC kuzothinteka ngokushisa kwamanzi kanye nenani le-pH. Ukushisa kwamanzi okuphakeme (50-60 ℃) kungasheshisa inqubo yokuqedwa kwe-MHEC, kodwa izinga lokushisa eliphezulu kakhulu lizothinta ukusebenza kwayo kwe-viscosity.
Kuhlanganiswe kuma-paint strippers:
Lapho ulungiselela ama-stripper kapende, isixazululo samanzi se-MHEC sivamise ukungezwa kancane kancane kuketshezi lwesisekelo se-peint stripper ngaphansi kokunyakaziswa. Ukuze kuqinisekiswe ukuhlakazeka okufanayo, isivinini sokwengeza se-MHEC akufanele sisheshe, futhi ukugqugquzela kufanele kuqhutshwe kuze kube yilapho kutholakala isisombululo esifanayo. Le nqubo idinga ukulawula isivinini esinyakazayo ukuvimbela ukwakheka kwamabhamuza.
Ukulungiswa kwefomula:
Inani le-MHEC kuma-stripper kapende ngokuvamile lilungiswa ngokuya ngefomula ethile kanye nokusebenza okuqondiwe kwabakhumula upende. Inani elivamile lokungezwa liphakathi kuka-0.1% -1%. Ukuqina okuqinile kungadala ukunamathela okungalingani noma i-viscosity eyeqile, kuyilapho umthamo onganele ungase ungafinyeleli i-viscosity efanelekile kanye nezakhiwo ze-rheological, ngakho-ke kuyadingeka ukwandisa ukusetshenziswa kwayo ngokuhlolwa.
5. Izinzuzo ze-MHEC kuma-strippers kapende
Ukuphepha nokuvikelwa kwemvelo:
Uma kuqhathaniswa nama-thickeners endabuko, i-MHEC iyi-ether ye-cellulose engeyona i-ionic, ayiqukethe izinto ezinobuthi neziyingozi, iphephile emzimbeni womuntu kanye nemvelo, futhi ihambisana nesiqondiso sokuthuthukiswa kwekhemistri yesimanje eluhlaza.
Ukuzinza okuhle kakhulu: I-MHEC inokuqina okuhle kwamakhemikhali ebangeni le-pH elibanzi (pH 2-12), ingagcina umphumela wokujiya ozinzile ezinhlelweni ezihlukene zokuhlubula upende, futhi ayiphazanyiswa kalula ezinye izingxenye ohlelweni.
Ukuhambisana okuhle: Ngenxa yemvelo engeyona i-ionic ye-MHEC, ihambisana kahle nezithako eziningi ezisebenzayo, ngeke ihlanganyele noma ibangele ukungazinzi kwesistimu, futhi ifanele izinhlobo ezihlukahlukene zokwakheka komhluzi kapende.
Umthelela ophumelelayo wokujiya: I-MHEC inganikeza umphumela wokujiya ophawulekayo, ngaleyo ndlela yehlise inani lamanye amajini ku-stripper kapende, yenza ifomula ibe lula futhi inciphise izindleko.
I-Methyl hydroxyethyl cellulose (MHEC) isetshenziswe kakhulu kuma-stripper kapende wesimanje ngenxa yokujiya kwayo okuhle kakhulu, ukuzinza nokuhambisana kwayo. Ngokuklama nokusetshenziswa kwefomula okunengqondo, i-MHEC ingathuthukisa kakhulu ukusebenza kwezihlubu zikapende, izenze zibonise ukusebenza kahle okuphezulu nokuvikelwa kwemvelo ezinhlelweni zokusebenza. Ngokuzayo, ngokuthuthukiswa okuqhubekayo kobuchwepheshe bokukhumula upende kanye nokuthuthukiswa okuqhubekayo kwezimfuneko zokuvikelwa kwemvelo, amathuba okusetshenziswa kwe-MHEC kubahlubuki bakapende azoba banzi.
Isikhathi sokuthumela: Jun-14-2024