Iimitha zoxinano oluphakathi, ezifana neLonnmeter tuning fork density meter, zibonelela ngomlinganiselo ochanekileyo we-nitrocellulose lacquer formulations equlethe izinyibilikisi eziphezulu zokubilisa ezisetyenziselwa imboni. Ukubeka iliso kwi-real-time density kugcina umlinganiselo ochanekileyo we-solvent-to-resin, ochaphazela ngokuthe ngqo umgangatho we-pigment dispersion, i-film gloss, kunye nokuhambelana kwesicelo. Kwiindlela zokudibanisa i-pigment kwiingubo, ukugcina ukuguquguquka koxinano ngaphakathi kwe-±0.5% kuqinisekisa ukumanzisa kakuhle kwamasuntswana kwaye kuthintela ukutshintsha kwe-batch-to-batch.
Impendulo ekhawulezileyo inciphisa umngcipheko we-lacquer engacwangciswanga ngenxa yokungalingani kwe-solvent okanye ukuhlanganiswa kwe-pigment. Izinyibilikisi ezibila kakhulu zokucubungula i-polymer zifuna ulawulo olusondeleyo loxinano ukuze kuthintelwe ukungalingani kwesantya somphunga kunye nokwakheka kwefilimu engalinganiyo. Idatha ekhawulezileyo ivumela ukulungiswa ngokukhawuleza—ukunciphisa ukuphinda kusetyenzwe, ukuphucula isivuno, kunye nokuqinisekisa ukuba ibhetshi nganye iyahlangabezana neemfuno ze-gloss kunye nokuhamba.
I-Nitrocellulose Lacquer
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Intshayelelo
I-lacquer ye-Nitrocellulose ixhomekeke kulawulo oluchanekileyo loxinano ukuze ifumane umgangatho ophezulu wokugquma kunye nomgangatho ohambelanayo wokugquma. Iimitha zoxinano oluphakathi, ezifana ne-Lonnmeter tuning fork density meter, zijonga ngokuthe ngqo umlinganiselo wolwelo ngexesha lokuxuba. Ukufundwa ngokuchanekileyo kugcina umlinganiselo ofanelekileyo we-solvent-to-resin, ngakumbi nge-solvents ephezulu yokubilisa yokusetyenziswa kwimizi-mveliso. Iindlela ezisebenzayo zokusasazwa kwe-pigment—ii-bead mills, ii-dispersers ezikhawulezayo, i-ultrasonic cavitation—zifuna ukhetho oluqinileyo lwe-solvent ukuze i-pigment izinze. Ukulungiswa koxinano ngexesha langempela kubonelela ngembonakalo efanayo, ukwakheka kwefilimu egudileyo, kunye ne-gloss yefilimu ephuculweyo kwiingubo zeemoto nezefenitshala. Izifundo zoshishino zibonisa iifilimu ezincinci ze-nitrocellulose lacquer, ezenziwe kwiinkqubo ezininzi, zibonelela nge-gloss ephezulu kunye nokucaca. Ukulinganiswa koxinano oluphakathi kwenza ukulungiswa kwangoko, ukunciphisa umahluko webhetshi kunye nokuxhasa imveliso enkulu.
Isishwankathelo sokuHamba kweNkqubo
Iireactor ezilawulwayo zidibanisa i-nitrocellulose kunye nezinyibilikisi eziphezulu zokubilisa ezisetyenziselwa imboni, ezifana ne-butyl glycol kunye ne-dibutyl phthalate. Izithako ezongezelelweyo kunye neeplastiki ziyafakwa ukuphucula ukuguquguquka kunye nokukhazimla. Umlinganiselo we-solvent ubalulekile; izinyibilikisi zokwenyani ziyanyibilikisa i-nitrocellulose ngelixa ii-cosolvents kunye nee-non-solvents zilungisa i-viscosity kunye nokugqitywa komphezulu.
Iindlela zokusasazwa kwemibala kwipeyinti kunye neengubo ziquka izisasazi ezikhawulezayo, ii-bead mills, kunye ne-ultrasonic cavitation. Ezi ziqinisekisa ukulayisha umbala ngokulinganayo, zithintela ukuhlangana kunye nokuxhasa uzinzo lwefilimu. Ukusasazwa kwemibala okwenziwe ngcono kuphucula ukukhanya kwefilimu kwizicelo zepeyinti kunye nokufana kokugubungela.
Ukuqina kunye noxinano kulawulwa ngokuchanekileyo ngokulungelelanisa uxinaniso lwe-solvent. Iimitha zoxinano zokulinganisa ulwelo, kuquka imitha yoxinano lwe-Lonnmeter tuning fork, zibonelela ngamaxabiso exesha langempela ngexesha lokuxuba, ukuqinisekisa ukuhamba komgca kunye nokukhanya okujoliswe kuko.
Ukwakheka kwefilimu kuvavanywa ngaphakathi komgca ukuze kubonakale ukugqwala, ukunamathela, kunye nokugquma, kusetyenziswa izixhobo zokulinganisa ezifakwe kwimigca yenkqubo. Ukwenziwa kunye nokusetyenziswa kwe-nitrocellulose lacquer yokugqibela kugcinwa ngokudluliselwa ngemibhobho exhotyiswe ngeemitha zoxinano oluphakathi ukuze kugqunywe ukugqwala okuphezulu nge-nitrocellulose lacquer. Oku kunika ukuhambelana komgangatho ukusuka kwibhetshi ukuya kwenye.
i-acetonylacetone
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Imingeni ekuLinganisweni koXinaniso oluPhakathi
Izinyibilikisi ezibila kakhulu zicotha ukufuma, nto leyo ebangela ukuguquguquka ngokukhawuleza kwesignali yoxinano ngexesha lokuveliswa kwe-nitrocellulose lacquer. Imigca yemizi-mveliso esebenzisa izinyibilikisi ezineendawo zokubila ezingaphezulu kwe-140°C (umz., i-xylene, i-butyl acetate) zibonisa umahluko woxinano olufikelela kwi-6% ngeyure ngenxa yotshintsho lwesantya somoya, ubushushu, kunye nokuhamba kwamanzi.
Iindlela zokusasazwa kwemibala efana nokusila iintsimbi kunye ne-ultrasonic cavitation zifumana i-micro-scale agglomeration; ukulayisha okungalinganiyo kutshintsha umgangatho we-gloss, okubangela umahluko we-3-15% kwimbonakalo yefilimu. Ngaphandle kokujonga ngexesha langempela, ukumiswa kwemibala kunye nokwakheka kweqela akubonwa, nto leyo echaphazela ngokuthe ngqo ukugquma okuphezulu.
Ngexesha lokwandisa ubungakanani, ukugcina ukusasazwa okufanayo kunzima ngaphandle kweemitha zoxinzelelo ezikwimigca. Abaxubi bokuhamba kwamanzi bayandisa imveliso kodwa bandisa umngcipheko wokungahambelani kwebhetshi xa ukhetho lwe-solvent okanye amandla okuphazamiseka etshintsha. Iimitha zoxinano lwelabhoratri eziqhelekileyo—i-pycnometry okanye i-hydrostatic weighing—azikwazi ukuhambelana notshintsho loxinano lolwelo lwenkqubo yexesha langempela, ingakumbi kwi-dynamic flows.
Ukuphazamiseka kwenkqubo, ukungcoliswa kwezixhobo, kunye nokwakheka kwamasalela kwiindawo zesensor kunciphisa ukuchaneka kwedatha. Ukulungiswa ngokuzenzekelayo kuyimfuneko; ukufundwa ngesandla kulibazisa impendulo ukuya kuthi ga kwimizuzu engama-90 ngebhetshi nganye, nto leyo ekhokelela ekuqulunqweni nasekusetyenzisweni kwe-lacquer ye-nitrocellulose engaqhelekanga.
Iingenelo zokudibanisa iiMeter zoxinano oluphakathi/iiMeter zoxinaniso oluphakathi
Iimitha zoxinano lwangaphakathi kunye noxinzelelo lwexesha langempela zibonelela ngolawulo oluchanekileyo lwe-solvent-to-resin ratio ye-nitrocellulose lacquer. Olu lwazi lukhawulezileyo noluthe ngqo luqinisekisa ukusasazeka kwepigment efanelekileyo kwaye luthintela ukushukuma kwe-gloss okubangelwa kukungalingani kwe-solvent—isitshixo xa kusenziwa izinyibilikisi eziphezulu zokubilisa ezisetyenziselwa imboni. Ukulinganiswa kwe-inline kususa ukulibaziseka kwisampuli esetyenziswa ngesandla, okuhlala kubangela umngcipheko obalulekileyo kwiindlela zokusasazeka kwepigment kwipeyinti nakwiingubo.
Imitha yoxinano lwefolokhwe yokulungisa iLonnmeter inika umlinganiselo othe ngqo we-24/7, isusa ukuxhomekeka ekuqinisekisweni kwelebhu rhoqo. Ukufundwa koxinano kwangoko kuyayimisa i-batches engahambelaniyo nemithetho ngaphambi kokuba iqhubeke nokuzalisa—kubalulekile kwiingubo ezikhazimlayo ezine-nitrocellulose lacquer kunye ne-polymer processing ezixhomekeke kuxinzelelo oluchanekileyo lwe-solvent.
Ukubeka iliso rhoqo kwenza ukuba kube lula ukulungelelanisa ukhetho lwe-solvent ukuze kufumaneke i-pigment dispersion ngenxa yokwahluka kwenkqubo ngexesha langempela. Oku kuqinisekisa ukuhambelana kwe-batch-to-batch, ulawulo oluqinileyo lwe-gloss, kunye nolwakhiwo lwefilimu olufanayo nokuba kusetyenziswe umbane omkhulu.
Cela isicatshulwa semitha yoxinano lwe-Lonnmeter ukulawula ukwakheka kwe-nitrocellulose lacquer. Fumana uhlengahlengiso oluchanekileyo lwezinyibilikisi eziphezulu zokubilisa ezisetyenziselwa imboni, ugcine iindlela ezifanelekileyo zokusasazwa kwepigment kwipeyinti nakwiingubo, kwaye wandise i-gloss ngeengubo eziphezulu ezigqwalisiweyo ezisekelwe kwi-nitrocellulose lacquer.
Ixesha leposi: Jan-27-2026
