Cov ntsuas qhov ceev hauv kab, xws li Lonnmeter tuning fork density meter, xa cov kev ntsuas tseeb ntawm cov nitrocellulose lacquer formulations uas muaj cov kuab tshuaj kub siab rau kev siv hauv kev lag luam. Kev saib xyuas qhov ceev tiag tiag tswj tau qhov sib piv ntawm cov kuab tshuaj thiab cov resin, cuam tshuam ncaj qha rau qhov zoo ntawm cov xim sib kis, zaj duab xis ci, thiab kev siv sib xws. Rau cov txheej txheem sib kis ntawm cov xim hauv cov txheej txheem pleev xim, kev tswj qhov ceev hloov pauv hauv ± 0.5% ua kom ntseeg tau tias cov khoom ntub zoo tshaj plaws thiab tiv thaiv kev hloov pauv ntawm ib pawg mus rau ib pawg.
Kev tawm tswv yim sai sai txo qhov kev pheej hmoo ntawm cov xim tsis raws li qhov tau teev tseg vim yog qhov tsis sib npaug ntawm cov kuab tshuaj lossis cov xim sib sau ua ke. Cov kuab tshuaj kub siab rau kev ua cov polymer xav tau kev tswj hwm qhov ceev kom tsis txhob muaj qhov tsis sib xws ntawm cov dej noo thiab cov yeeb yaj kiab tsis sib xws. Cov ntaub ntawv tam sim ntawd tso cai rau kev kho sai - txo cov haujlwm rov ua dua, txhim kho cov txiaj ntsig, thiab xyuas kom meej tias txhua pawg ua tau raws li qhov ci thiab cov kev xav tau ntawm kev ntws.
Nitrocellulose Lacquer
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Kev Taw Qhia
Cov xim nitrocellulose siv kev tswj qhov ceev kom meej kom ua tiav qhov ci ntsa iab thiab zoo ib yam li cov xim pleev. Cov ntsuas qhov ceev hauv kab, xws li Lonnmeter tuning fork density meter, saib xyuas qhov ntsuas kua ncaj qha thaum sib tov. Kev nyeem ntawv raug tswj qhov sib piv ntawm cov kuab tshuaj thiab cov roj hmab zoo tshaj plaws, tshwj xeeb tshaj yog nrog cov kuab tshuaj kub kub rau kev siv hauv kev lag luam. Cov txheej txheem faib cov xim zoo - cov tshuab sib tsoo hlaws, cov tshuab faib ceev ceev, ultrasonic cavitation - xav tau kev xaiv cov kuab tshuaj kom ruaj khov rau cov xim pleev. Kev hloov kho qhov ceev tiag tiag muab cov tsos zoo ib yam, tsim cov zaj duab xis du, thiab txhim kho cov zaj duab xis ci rau cov txheej txheem tsheb thiab rooj tog. Kev tshawb fawb hauv kev lag luam qhia tau tias cov zaj duab xis nyias ntawm nitrocellulose lacquer, tsim los ntawm ntau txheej, xa cov ci ntsa iab zoo dua thiab pob tshab. Kev ntsuas qhov ceev hauv kab ua rau kho tau tam sim ntawd, txo cov kev hloov pauv ntau thiab txhawb nqa kev tsim khoom loj.
Kev Txheeb Xyuas Txog Cov Txheej Txheem
Cov reactors tswj tau sib xyaw nitrocellulose nrog cov kuab tshuaj kub siab rau kev siv hauv kev lag luam, xws li butyl glycol thiab dibutyl phthalate. Cov khoom ntxiv thiab cov yas tau koom ua ke los txhim kho kev ywj pheej thiab kev ci ntsa iab. Cov piv ntawm cov kuab tshuaj yog qhov tseem ceeb; cov kuab tshuaj tiag tiag yaj nitrocellulose thaum cov cosolvents thiab cov tsis yog kuab tshuaj kho qhov viscosity thiab qhov tiav ntawm qhov chaw.
Cov txheej txheem faib cov xim rau cov xim thiab cov txheej pleev xim suav nrog cov tshuab faib ceev ceev, cov tshuab sib tsoo hlaws, thiab ultrasonic cavitation. Cov no ua kom cov xim sib npaug, tiv thaiv kev sib sau ua ke thiab txhawb nqa cov zaj duab xis ruaj khov. Kev faib cov xim zoo tshaj plaws txhim kho cov zaj duab xis ci ntsa iab hauv kev siv xim thiab kev sib npaug ntawm cov npog.
Qhov viscosity thiab qhov ceev raug tswj hwm kom meej los ntawm kev kho qhov concentration ntawm cov kuab tshuaj. Cov ntsuas qhov ceev rau kev ntsuas kua, suav nrog Lonnmeter tuning fork density meter, muab cov nqi tiag tiag thaum lub sijhawm sib tov, kom ntseeg tau tias cov dej ntws thiab ci ntsa iab.
Kev tsim cov zaj duab xis raug soj ntsuam hauv kab rau qhov ci ntsa iab, kev nplaum, thiab kev npog, siv cov cuab yeej ntsuas uas tau muab tso rau hauv cov kab ua haujlwm. Cov qauv nitrocellulose lacquer kawg thiab kev siv tau khaws cia los ntawm kev hloov pauv los ntawm cov kav dej uas muaj cov ntsuas qhov ceev hauv kab rau cov txheej txheem ci ntsa iab nrog nitrocellulose lacquer. Qhov no muab cov khoom zoo sib xws los ntawm ib pawg mus rau ib pawg.
acetonylacetone
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Cov Teeb Meem Hauv Kev Ntsuas Qhov Ceev Hauv Kab
Cov kuab tshuaj uas kub heev ua rau cov dej noo qeeb, ua rau cov teeb liab ceev ceev hloov pauv thaum lub sijhawm tsim cov xim nitrocellulose. Cov kab kev lag luam siv cov kuab tshuaj uas kub tshaj 140°C (piv txwv li, xylene, butyl acetate) qhia txog qhov sib txawv ntawm qhov ceev txog li 6% txhua teev vim yog huab cua, cua sov, thiab kev hloov pauv ntawm cov dej ntws.
Cov txheej txheem kev sib kis xim xws li kev sib tsoo hlaws thiab ultrasonic cavitation ntsib kev sib sau ua ke me me; kev thauj khoom tsis sib xws hloov qhov zoo ntawm cov xim ci, ua rau muaj kev hloov pauv 3–15% hauv cov tsos ntawm zaj duab xis. Yog tsis muaj kev saib xyuas tiag tiag, cov xim sib sau ua ke thiab kev tsim cov pawg tsis pom, cuam tshuam ncaj qha rau cov txheej txheem ci ntsa iab.
Thaum lub sijhawm nce qib, kev tswj kom muaj kev sib npaug sib npaug yog qhov nyuaj yog tsis muaj cov ntsuas kev ntsuas hauv kab. Cov khoom sib tov ua rau cov zis ntau ntxiv tab sis ua rau muaj kev pheej hmoo ntawm kev tsis sib xws thaum xaiv cov kuab tshuaj lossis lub zog sib xyaw hloov pauv. Cov ntsuas qhov ceev hauv chaw kuaj mob ib txwm muaj - pycnometry lossis hydrostatic weighing - tsis sib raug zoo nrog cov txheej txheem cov kua dej hloov pauv tiag tiag, tshwj xeeb tshaj yog hauv cov dej ntws dynamic.
Kev cuam tshuam cov txheej txheem, cov khoom siv ua qias tuaj, thiab cov khoom seem sib sau ua ke ntawm cov nplaim sensor ua rau cov ntaub ntawv tsis raug. Kev kho tsis siv neeg yog qhov tsim nyog; kev nyeem ntawv tes qeeb qeeb txog li 90 feeb ib pawg, ua rau cov qauv thiab kev siv nitrocellulose lacquer tsis raws li qhov xav tau.
Cov txiaj ntsig ntawm kev sib koom ua ke Inline Density Meters / Inline Concentration Meters
Cov ntsuas qhov ceev thiab qhov concentration hauv kab tam sim no muab kev tswj hwm qhov sib piv ntawm cov kuab tshuaj thiab cov roj hmab rau nitrocellulose lacquer. Cov ntaub ntawv tam sim ntawd, ncaj qha no ua kom cov xim sib kis zoo tshaj plaws thiab tiv thaiv kev poob ntawm cov xim ci uas tshwm sim los ntawm kev tsis sib npaug ntawm cov kuab tshuaj - qhov tseem ceeb thaum tsim cov tshuaj nrog cov kuab tshuaj kub siab rau kev siv hauv kev lag luam. Kev ntsuas hauv kab tshem tawm qhov qeeb ntawm kev kuaj tes, uas feem ntau ua rau muaj kev pheej hmoo tseem ceeb hauv cov txheej txheem sib kis ntawm cov xim rau xim thiab cov txheej txheem pleev xim.
Lub Lonnmeter tuning fork density meter muab kev ntsuas ncaj qha 24/7, tshem tawm kev vam khom rau kev kuaj xyuas hauv chaw kuaj mob. Kev nyeem cov ntom ntom tam sim ntawd nres cov pawg tsis ua raws li txoj cai ua ntej lawv mus rau kev sau - qhov tseem ceeb rau cov txheej txheem ci ntsa iab nrog nitrocellulose lacquer thiab polymer ua tiav uas vam khom qhov concentration ntawm cov kuab tshuaj.
Kev saib xyuas tas mus li ua rau muaj kev hloov kho sai rau kev xaiv cov kuab tshuaj rau cov xim sib cais los teb rau qhov sib txawv ntawm cov txheej txheem tiag tiag. Qhov no lav qhov sib xws ntawm ib pawg mus rau ib pawg, kev tswj hwm qhov ci ntsa iab, thiab cov qauv zaj duab xis sib xws txawm tias thaum lub sijhawm ua haujlwm loj.
Thov kom muaj tus nqi rau Lonnmeter inline density meter los tswj cov nitrocellulose lacquer formulation. Ua tiav qhov kev hloov kho kom raug ntawm cov kuab tshuaj kub siab rau kev siv hauv kev lag luam, tswj cov txheej txheem sib kis xim zoo tshaj plaws rau cov xim thiab cov txheej pleev xim, thiab ua kom ci ntsa iab nrog cov txheej pleev xim ci ntsa iab raws li nitrocellulose lacquer.
Lub sijhawm tshaj tawm: Lub Ib Hlis-27-2026
