-
Kev Tshawb Fawb Tshiab hauv Kev Hloov Cov Khib Nyhiab Mus Ua Khoom Muaj Nqis! Cov Kws Tshawb Fawb Suav Siv Lub Hnub Ci Hloov Cov Yas Pov Tseg Mus Ua Formamide Muaj Nqis Siab
Cov Ntsiab Lus Tseem Ceeb Ib pab neeg tshawb fawb los ntawm Chinese Academy of Sciences (CAS) tau tshaj tawm lawv cov kev tshawb pom hauv Angewandte Chemie International Edition, tsim cov thev naus laus zis photocatalytic tshiab. Cov thev naus laus zis no siv Pt₁Au/TiO₂ photocatalyst los pab kom muaj kev sib txuas CN ntawm ethylene glycol (obtai...Nyeem ntxiv -
Tuam Tshoj Sib Tham Txog Cov Lag Luam PTA/PET Los Daws Qhov Teeb Meem Muaj Peev Xwm Ntau Dhau
Thaum Lub Kaum Hli 27, Tuam Tshoj Lub Tsev Haujlwm Saib Xyuas Kev Lag Luam thiab Kev Siv Tshuab Xov Xwm (MIIT) tau hu cov neeg tsim khoom loj hauv tebchaws ntawm Purified Terephthalic Acid (PTA) thiab PET lub raj mis-qib chips rau kev sib tham tshwj xeeb txog qhov teeb meem ntawm "kev muaj peev xwm ntau dhau hauv kev lag luam thiab kev sib tw txiav caj pas". Cov no...Nyeem ntxiv -
Tebchaws Meskas Tshaj Tawm "Kev Txwv Zaum Kawg" rau Cov Khoom Siv Khoom Siv Uas Muaj Methylene Chloride, Thawb Kev Lag Luam Tshuaj Kom Ua Kom Sai Sai Nrhiav Cov Khoom Hloov
Cov Ntsiab Lus Tseem Ceeb Txoj cai kawg uas tau muab los ntawm US Environmental Protection Agency (EPA) raws li Txoj Cai Tswj Xyuas Cov Khoom Lom Zem (TSCA) tau pib siv. Txoj cai no txwv tsis pub siv methylene chloride hauv cov khoom siv xws li cov tshuaj pleev xim thiab tsim cov kev txwv nruj rau nws cov lag luam ...Nyeem ntxiv -
Glutaraldehyde Technological Frontier: Kev Tshawb Fawb Tshiab hauv Anti-Calcification Technology
Hauv kev cog cov hlab ntsha hauv lub plawv, glutaraldehyde tau siv ntev los kho cov nqaij tsiaj (xws li bovine pericardium) rau kev tsim cov bioprosthetic valves. Txawm li cas los xij, cov pawg aldehyde dawb uas seem los ntawm cov txheej txheem ib txwm muaj tuaj yeem ua rau calcification tom qab cog, ua rau t...Nyeem ntxiv -
Kev Lag Luam Dimethyl Sulfoxide (DMSO): Kev Txheeb Xyuas thiab Kev Txhim Kho Tshiab Tshaj Plaws
Kev Lag Luam Kev Lag Luam Txheej Txheem Cej Luam Dimethyl Sulfoxide (DMSO) yog ib qho tseem ceeb organic solvent siv dav hauv tshuaj, khoom siv hluav taws xob, petrochemicals, thiab lwm yam teb. Hauv qab no yog cov ntsiab lus luv luv ntawm nws qhov xwm txheej kev lag luam: Yam Khoom Tshiab Tshaj Plaws Kev Loj Hlob Thoob Ntiaj Teb Kev Lag Luam Loj thoob ntiaj teb yog kwv yees li $ ...Nyeem ntxiv -
Tebchaws Meskas tau muab cov se hnyav rau Suav MDI, nrog rau cov nqi se ua ntej rau lub tuam txhab lag luam loj hauv Suav teb tau teeb tsa siab txog 376% -511%. Qhov no xav tias yuav cuam tshuam rau kev lag luam xa khoom tawm...
Tebchaws Meskas tau tshaj tawm cov txiaj ntsig pib ntawm nws txoj kev tshawb nrhiav tiv thaiv kev pov tseg rau MDI uas yog los ntawm Tuam Tshoj, nrog rau cov nqi se siab heev ua rau tag nrho kev lag luam tshuaj lom neeg xav tsis thoob. Lub Tsev Haujlwm Saib Xyuas Kev Lag Luam Tebchaws Meskas tau txiav txim siab tias cov neeg tsim khoom thiab cov neeg xa khoom MDI Suav tau muag lawv cov khoom hauv ...Nyeem ntxiv -
N-Methylpyrrolidone (NMP): Cov Cai Tswjfwm Ib Puag Ncig Uas Nruj Dua Txhawb Kev Tshawb Fawb thiab Kev Txhim Kho Lwm Txoj Hauv Kev thiab Kev Siv Tshiab ntawm NMP Nws Tus Kheej hauv Cov Khoom Siv Siab
I. Cov Qauv Tseem Ceeb ntawm Kev Lag Luam: Kev Tswjfwm thiab Kev Hloov Pauv ntawm Kev Lag Luam Tam sim no, qhov sib txawv loj tshaj plaws uas cuam tshuam rau kev lag luam NMP yog los ntawm kev saib xyuas kev tswj hwm thoob ntiaj teb. 1. Cov kev txwv nyob rau hauv EU REACH Regulation NMP tau raug suav nrog hauv Daim Ntawv Teev Npe ntawm Cov Tshuaj Uas Muaj Zog...Nyeem ntxiv -
Kev ntsuam xyuas ntawm kev ua haujlwm raug rau 4,4′-methylene-bis-(2-chloroaniline) "MOCA" los ntawm txoj kev tshiab rau kev saib xyuas kab mob
Ib txoj kev tshuaj xyuas tshiab, uas muaj qhov tshwj xeeb thiab muaj zog rhiab heev, tau tsim tau zoo rau kev txiav txim siab ntawm 4,4′-methylene-bis-(2-chloroaniline), feem ntau hu ua "MOCA," hauv tib neeg cov zis. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias MOCA yog ib qho ca zoo sau tseg ...Nyeem ntxiv -
Aniline: Kev Txhim Kho Kev Lag Luam Tshiab
Qhov Xwm Txheej Kev Lag Luam Kev Muab Khoom thiab Kev Xav Tau Tus Qauv Kev lag luam aniline thoob ntiaj teb nyob rau theem ntawm kev loj hlob ruaj khov. Nws tau kwv yees tias qhov loj me ntawm kev lag luam aniline thoob ntiaj teb yuav ncav cuag kwv yees li 8.5 billion US las los ntawm xyoo 2025, nrog rau tus nqi loj hlob txhua xyoo (CAGR) tswj hwm ib puag ncig 4.2%. Tuam Tshoj tus anilin...Nyeem ntxiv -
Methylene Chloride: Kev Taw Qhia Lub Sijhawm Hloov Pauv ntawm Ob Lub Caij Nyoog thiab Kev Sib Tw
Methylene Chloride yog ib qho tseem ceeb hauv kev lag luam, thiab nws txoj kev txhim kho kev lag luam thiab kev tshawb fawb txog kev tshawb fawb yog cov ntsiab lus tseem ceeb. Tsab xov xwm no yuav piav qhia txog nws cov kev txhim kho tshiab los ntawm plaub yam: cov qauv kev ua lag luam, kev tswj hwm kev cai lij choj, cov qauv nqi, thiab cov kev tshawb fawb tshiab kawg ...Nyeem ntxiv
