Raws li kev tswj hwm kev noj qab haus huv thoob ntiaj teb nruj thiab cov chaw tsim khoom tseem ceeb hauv chaw ua haujlwm huab cua zoo, "cov kuab tshuaj tsw qab" tau hloov kho cov tshuaj lom neeg thaj chaw. Ntawm cov kev xaiv loj tshaj plaws yogsec-butyl acetate hmoov(CAS 105-46-4), ib tug dav saws me me-odor solvent qhuas rau balanced solvency thiab user-friendly zog. Tab sis raws li ntau tus qauv hloov mus rau qhov ester lwm txoj hauv kev, cov lus nug tseem ceeb tseem nyob: Puas yog cov tshuaj tsw qab uas tsis muaj ntxhiab tsw muaj kev nyab xeeb rau kev siv mus sij hawm ntev?
Sec-butyl acetate yog nruab nrab-boiling ester hnyav nrog muaj zog sib raug zoo nrog acrylic resins, nitrocellulose thiab alkyd txheej tshuab. Tsis zoo li cov kuab tshuaj tsw qab hnyav xws li "toluene" thiab "xylene", uas tso tawm cov pa pungent uas ua rau ua pa ua pa thiab ua rau tsis xis nyob hauv chaw ua haujlwm, cov kuab tshuaj uas tsis tshua muaj pa tawm tsuas yog cov ntxhiab tsw tsw qab, txo cov ntxhiab tsw hauv cov chaw ua haujlwm thiab txheej txheej. Nws kuj yog ib qho kev hloov pauv ncaj qha rau "n-butyl acetate" nyob rau hauv feem ntau formulations, muab me ntsis sai dua evaporation yam tsis muaj txia zaj duab xis leveling kev ua tau zoo. Nyob rau hauv high-ceev ntim number case ntau lawm, nws yog nquag sib xyaw nrog "ethyl acetate" kom zoo-tu kom qhuav ceev thiab viscosity rau kev pom zoo kab.
Los ntawm toxicological standpoint,sec-butyl acetate hmoovnqa qis-rau-mob siab mob toxicity. Nws qhov kev tso cai ua haujlwm raug txwv yog siab dua li ntau cov ketone ib txwm muaj thiab cov kuab tshuaj tsw qab, thiab nws ua rau qhov muag thiab tawv nqaij tsawg heev nyob rau hauv ib txwm ua haujlwm. Raws li cov kuab tshuaj tsw qab, nws pab cov chaw ua tau raws li cov qauv cua hauv tsev zoo dua nrog cov nqi qis dua qhov cua. Txawm li cas los xij, "tso ntxhiab" yeej tsis sib npaug tsis muaj kev phom sij. Nws yog cov kua nplaum uas muaj lub khob kaw qhov taw tes ntawm 17 degree, thiab nws cov vapors tuaj yeem tsim cov khoom tawg nrog cua hauv qhov chaw kaw. Tus qauv PPE, kev cia hauv av thiab qhov cua kom zoo yog qhov tseem ceeb rau kev nyab xeeb txhua hnub.
Tag nrho hauv tag nrho, thaum tswj hwm nrog cov txheej txheem kev nyab xeeb kev nyab xeeb, sec-butyl acetate yog ib qho kev txhim khu kev qha, kev ua haujlwm siab uas tsis muaj ntxhiab tsw hnyav uas muab cov khoom tsim tau zoo thiab txhim kho kev nplij siab ntawm cov neeg ua haujlwm.
Yog tias koj tab tom ntsuam xyuas cov kev hloov pauv hnyav rau koj cov txheej txheem, tus cwj mem lossis cov nplaum nplaum, peb pab neeg ua haujlwm tuaj yeem muab cov lus qhia txog kev thov, qauv kev txhawb nqa thiab kev sib tw ntau cov kev daws teeb meem. Hu rau peb hnub no los tham txog koj cov kev xav tau sec-butyl acetate.
Kev Sib cuag: Jasmine
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