Ukusetshenziswa kwe-Cellulose Ether kusikhiphi sepende

isikhiphi sikapende

Umkhiqizi wepende uyi-solvent noma unamathisele ongancibilikisa noma uvuvuke ifilimu yokugqoka, futhi ikakhulukazi sakhiwe i-solvent enekhono elinamandla lokuqedwa, ipharafini, i-cellulose, njll.

Embonini yokwakha umkhumbi, izindlela zemishini ezifana nokufosholo okwenziwa ngesandla, ukuqhunyiswa kwesibhamu, ukuqhunyiswa kwesihlabathi, amanzi anomfutho ophezulu kanye namajethi abrasive asetshenziswa kakhulu ukususa izimbotshana ezindala.Kodwa-ke, kumagobolondo e-aluminium, izindlela zemishini kulula ukuklwebha i-aluminium, ngakho-ke okuyinhloko Sebenzisa i-sandpaper ukupholisha, i-stripper yokupenda, njll. ukususa ifilimu endala kapende.Uma kuqhathaniswa nesihlabathi, ukusetshenziswa kokukhishwa kwepende ukususa ifilimu yepende endala kunezinzuzo zokuphepha, ukuvikelwa kwemvelo nokusebenza kahle okuphezulu.

Izinzuzo zokusebenzisa isikhiphi sikapende ukusebenza kahle okuphezulu, ukusetshenziswa ekamelweni lokushisa, ukugqwala okuncane ensimbi, ukwakhiwa okulula, asikho isidingo sokwandisa imishini, futhi okubi ukuthi ezinye izinto zokususa upende zinobuthi, ziyaguquguquka, ziyavutha futhi zibiza.Eminyakeni yamuva nje, kuye kwavela izinhlobonhlobo zemikhiqizo emisha yokususa upende, kanye nezisusa zopende ezisekelwe emanzini nazo ziye zakhiqizwa.Ukusebenza kahle kokususa upende kuye kwathuthukiswa ngokuqhubekayo, futhi nokusebenza kokuvikelwa kwemvelo kuye kwathuthukiswa ngokuqhubekayo.Imikhiqizo engenabo ubuthi, enobuthi obuphansi, futhi engashi kancane kancane ingene emakethe evamile yokukhipha upende.

Isimiso sokususa upende kanye nezigaba zokukhipha upende

1. Isimiso sokukhumula upende

Isikhiphi sikapende sincike ikakhulukazi ku-solvent ye-organic ekukhipheni upende ukuze kuncibilike futhi kugcwale amafilimu amaningi okunamathela, ukuze kufezwe inhloso yokukhipha ifilimu elidala elinamathelayo ebusweni be-substrate.Lapho isikhiphi sikapende singena kugebe le-polymer chain ye-polymer yokugqoka, kuzobangela ukuthi i-polymer ivuvuke, ukuze umthamo wefilimu yokugcoba uzoqhubeka nokukhula, kanye nokucindezeleka kwangaphakathi okubangelwa ukwanda komthamo we-coating. I-polymer izoba buthakathaka futhi Ekugcineni, ukunamathela kwefilimu yokumboza ku-substrate kuyabhujiswa, futhi ifilimu yokumboza ikhula kusukela ekuvuvukeni okufana nephuzu kuya ekuvuvukeni kweshidi, okubangela ukuba ifilimu yokumboza ibe mibimbi, ibhubhise ngokuphelele ukunamathela kwefilimu enamathela ku-substrate. , futhi ekugcineni ifilimu yokugcoba iyalunywa.cacile.

2. Ukuhlukaniswa kwesikhiphi sikapende

Ama-stripper kapende ahlukaniswe abe izigaba ezimbili ngokuya ngezinto ezihlukene ezakha ifilimu ezikhishiwe: esisodwa sakhiwe ngezincibilikisi eziphilayo njenge-ketones, benzenes, nama-ketones, kanye ne-volatilization retarder parafini, evame ukwaziwa ngokuthi i-white lotion, futhi isetshenziselwa kakhulu ukususa. amafilimu kapende amadala afana nopende osuselwe kuwoyela, i-alkyd kanye ne-nitro.Lolu hlobo lwesikhiphi sikapende luhlanganisa ikakhulukazi izincibilikisi eziphilayo eziguquguqukayo, ezinezinkinga ezifana nokuvutha kanye nobuthi, futhi zishibhile uma kuqhathaniswa.

Esinye isikhiphi sikapende se-hydrocarbon esine-chlorine esakhiwe nge-dichloromethane, upharafini kanye ne-cellulose ether njengezingxenye eziyinhloko, evame ukwaziwa ngokuthi isikhiphi sikapende esishaywa ngamanzi, esisetshenziswa kakhulu ukususa i-epoxy asphalt, i-polyurethane, i-epoxy poly Amafilimu amadala okunamathela afana ne-phthalamide noma i-amino alkyd. inhlaka.Inezinga eliphezulu lokususa upende, ubuthi obuphansi kanye nokusetshenziswa okubanzi.Isikhiphi sikapende esine-dichloromethane njengesincibilikisi esiyinhloko siphinde sihlukaniswe sibe isikhiphi sikapende esingathathi hlangothi (pH=7±1), isikhiphi sikapende esine-alkaline (pH>7) nesikhiphi sikapende esine-asidi ngokuya ngomehluko wenani le-pH.