Amamitha okuqina angaphakathi, njengemitha yokulinganisa i-Lonnmeter tuning fork density, ahlinzeka ngokulinganisa okunembile kwenqubo ye-nitrocellulose lacquer formulations equkethe izinyibilikisi zamaphuzu aphezulu okubila ukuze zisetshenziswe ezimbonini. Ukuqapha ukuqina kwesikhathi sangempela kugcina isilinganiso esinembile se-solvent-to-resin, okuthinta ngqo ikhwalithi yokusabalala kombala, ukukhanya kwefilimu, kanye nokuvumelana kokusetshenziswa. Kumasu okusabalala kombala ezimbozweni, ukugcina ukuguquguquka kobuningi ngaphakathi kuka-±0.5% kuqinisekisa ukumanzisa kahle kwezinhlayiya futhi kuvimbela ukuhlukahluka kwe-batch-to-batch.
Impendulo esheshayo inciphisa ingozi ye-lacquer engacacisiwe ngenxa yokungalingani kwe-solvent noma ukuhlanganiswa kwe-pigment. Izinyibilikisi ezibilayo kakhulu zokucubungula i-polymer zidinga ukulawulwa kokuqina okuseduze ukuze kugwenywe ukungalingani kwezinga lokuhwamuka kanye nokwakheka kwefilimu okungalingani. Idatha esheshayo ivumela ukulungiswa okusheshayo—ukunciphisa ukusebenza kabusha, ukuthuthukisa isivuno, kanye nokuqinisekisa ukuthi ibhetshi ngayinye ihlangabezana nezidingo ze-gloss kanye nokugeleza.
I-Nitrocellulose Lacquer
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Isingeniso
I-lacquer ye-Nitrocellulose incike ekulawuleni okunembile kobuningi ukuze kufezwe ikhwalithi ephezulu yokucwebezela kanye nekhwalithi yokumboza ehambisanayo. Amamitha okuqina angaphakathi, njenge-Lonnmeter tuning fork density meter, aqapha ngqo ukulinganiswa koketshezi ngesikhathi sokuxuba. Ukufundwa okunembile kugcina isilinganiso se-solvent-to-resin esifanele, ikakhulukazi ngezixazululo eziphezulu zokubilisa zokusetshenziswa kwezimboni. Amasu okusabalalisa umbala asebenzayo—ama-bead mills, ama-disperser asheshayo, i-ultrasonic cavitation—adinga ukukhethwa okuqinile kwe-solvent ukuze kuqiniswe umbala. Ukulungiswa kwesikhathi sangempela kobuningi kunikeza ukubukeka okufanayo, ukwakheka kwefilimu ebushelelezi, kanye nokukhanya kwefilimu okuthuthukisiwe kwezingubo zezimoto nezefenisha. Izifundo zezimboni zibonisa amafilimu amancane e-nitrocellulose lacquer, akhiwe ngezinqubo eziningi, aletha ukukhanya okuphezulu kanye nokucaca. Ukulinganiswa kokuqina okungaphakathi kwenza ukulungiswa okusheshayo, ukunciphisa ukuhlukahluka kweqembu kanye nokusekela ukukhiqizwa okukhulu.
Ukubuka Konke Kokugeleza Kwenqubo
Ama-reactor alawulwayo ahlanganisa i-nitrocellulose nezinyibilikisi ezinamazinga aphezulu okubila ukuze zisetshenziswe ezimbonini, njenge-butyl glycol kanye ne-dibutyl phthalate. Izithasiselo kanye nama-plasticizers kufakwa ukuthuthukisa ukuguquguquka kanye nokukhanya. Izilinganiso ze-solvent zibalulekile; izinyibilikisi zangempela zincibilikisa i-nitrocellulose kuyilapho ama-cosolvent kanye nama-non-solvents elungisa kahle i-viscosity kanye nokuphela kwendawo.
Amasu okusabalala kombala wopende kanye nopende afaka phakathi ama-disperser asheshayo, ama-bead mills, kanye ne-ultrasonic cavitation. Lokhu kuqinisekisa ukulayishwa kombala okulinganayo, ukuvimbela ukuhlangana kanye nokusekela ukuzinza kwefilimu. Ukusabalala kombala okwenziwe ngcono kuthuthukisa ukukhanya kwefilimu ekusetshenzisweni kopende kanye nokufana kokumbozwa.
Ukuqina kanye nobuningi kulawulwa ngokunembile ngokulungisa ukuhlushwa kwe-solvent. Amamitha obuningi bokulinganisa uketshezi, kufaka phakathi imitha yokulinganisa ifoloko ye-Lonnmeter, ahlinzeka ngamanani esikhathi sangempela ngesikhathi sokuxuba, okuqinisekisa ukugeleza okuqondiwe kanye nokukhanya.
Ukwakheka kwefilimu kuhlolwa emgqeni ukuze kutholakale ukucwebezela, ukunamathela, kanye nokumbozwa, kusetshenziswa amadivayisi okulinganisa afakwe emigqeni yenqubo. Ukwakheka kokugcina kwe-nitrocellulose lacquer kanye nokusetshenziswa kugcinwa ngokudluliselwa ngamapayipi afakwe amamitha okujiya okungaphakathi ukuze kufakwe ukucwebezela okuphezulu nge-nitrocellulose lacquer. Lokhu kunikeza ukuhambisana kwekhwalithi kusuka kuqoqo kuya kwelinye.
i-acetonylacetone
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Izinselele Ekulinganisweni Kobuningi Be-Inline
Izithako zokubilisa eziphezulu zinciphisa ukuhwamuka, okubangela ukuguquguquka kwesignali yobuningi ngokushesha ngesikhathi sokukhiqizwa kwe-nitrocellulose lacquer. Imigqa yezimboni esebenzisa izithako zokubilisa ezinamazinga okubilisa angaphezu kuka-140°C (isb., i-xylene, i-butyl acetate) zibonisa ukuguquguquka kobuningi obufika ku-6% ngehora ngenxa yokushintsha kwesilinganiso somoya, ukushisa, kanye nokugeleza.
Amasu okusabalala kwe-pigment njengokugaya ama-bead kanye ne-ultrasonic cavitation ahlangabezana ne-micro-scale agglomeration; ukulayisha okungalingani kushintsha ikhwalithi ye-gloss, okubangela ukushintshashintsha okungu-3-15% ekubukekeni kwefilimu. Ngaphandle kokuqapha ngesikhathi sangempela, ukumiswa kwe-pigment kanye nokwakheka kweqembu akubonakali, okuthinta ngqo ukumbozwa okuphezulu kwe-gloss.
Ngesikhathi sokukhulisa, ukugcina ukuhlakazeka okufanayo kunzima ngaphandle kwamamitha okuhlushwa angaphakathi komugqa. Ama-flow mixer andisa umkhiqizo kodwa andisa ingozi yokungalingani kwe-batch lapho ukukhethwa kwe-solvent noma amandla okunyakaza kushintsha. Amamitha obuningi be-laboratory ajwayelekile—i-pycnometry noma i-hydrostatic weighing—ahluleka ukuhlobana nokushintsha kobuningi boketshezi lwenqubo yesikhathi sangempela, ikakhulukazi ekugelezeni okuguquguqukayo.
Ukuphazamiseka kwenqubo, ukungcola kwemishini, kanye nokwakheka kwezinsalela ezindaweni zezinzwa kwehlisa ukunemba kwedatha. Ukulungiswa okuzenzakalelayo kuyadingeka; ukufundwa ngesandla kulibazisa impendulo ngamaminithi afinyelela kwangu-90 ngebhetshi ngayinye, okuholela ekwakhiweni nasekusetshenzisweni kwe-lacquer ye-nitrocellulose engacacisiwe.
Izinzuzo Zokuhlanganisa Amamitha Obuningi Obungaphakathi/Amamitha Okugxila Ophakathi
Amamitha okujiya kanye nokuhlushwa kwesikhathi sangempela ahlinzeka ngokulawula okunembile kwesilinganiso se-solvent-to-resin se-nitrocellulose lacquer. Le datha esheshayo neqondile iqinisekisa ukusabalala kombala okuhle kakhulu futhi ivimbela ukukhukhuleka kokukhanya okubangelwa ukungalingani kwe-solvent—okuyisihluthulelo lapho kwenziwa ngezinyibilikisi zamaphuzu abilayo aphezulu ukuze zisetshenziswe ezimbonini. Ukulinganisa okuqondile kususa ukubambezeleka kokuthatha amasampula ngesandla, okuvame ukubangela izingozi ezibalulekile ezingaphandle kwe-specific kumasu okusabalala kombala wopende kanye nopende.
Imitha yokulinganisa ifoloko lokushuna iLonnmeter inikeza isilinganiso esiqondile samahora angu-24/7, isusa ukuncika ekuqinisekisweni kwelebhu okwenziwa njalo. Ukufundwa kobuningi obusheshayo kumisa amaqoqo angahambisani nemithetho ngaphambi kokuba aqhubeke nokugcwalisa—okubalulekile ekumbozweni okuphezulu okucwebezelayo nge-nitrocellulose lacquer kanye nokucubungula i-polymer okuncike ekugxilweni okuqondile kwe-solvent.
Ukuqapha okuqhubekayo kwenza kube lula ukulungisa ngokushesha ekukhetheni i-solvent ukuze kusakazwe umbala ngokuphendula ekushintsheni kwenqubo ngesikhathi sangempela. Lokhu kuqinisekisa ukuhambisana kwe-batch-to-batch, ukulawula okuqinile kwe-gloss, kanye nesakhiwo sefilimu esifanayo ngisho nangesikhathi sokusebenza okukhulu.
Cela ikhotheshini yemitha yobuningi be-Lonnmeter ukuze ulawule ukwakheka kwe-nitrocellulose lacquer. Finyelela ukulungiswa okunembile kwezinyibilikisi zamaphuzu aphezulu okubila ukuze zisetshenziswe ezimbonini, gcina amasu okusabalalisa umbala afanele kakhulu opende kanye nezingubo, futhi wandise ukukhanya ngezingubo ezicwebezelayo ezisekelwe ku-nitrocellulose lacquer.
Isikhathi sokuthunyelwe: Jan-27-2026
