Ua ib lub tuam txhab muab tshuaj lom neeg loj tshaj plaws hauv xeev Shandong, Suav teb, peb tau ua tus thawj coj hauv kev muab cov khoom siv tshuaj lom neeg zoo txij li xyoo 2000. Peb qhov kev tshwj xeeb hauv kev muab cov khoom siv tshuaj lom neeg thiab cov khoom siv nruab nrab tseem ceeb tau tso cai rau peb los pab txhawb ntau yam lag luam. Cov tshuaj tseem ceeb uas peb muab yog Methylene Chloride, Propylene Glycol (PG), thiab Dimethylformamide (DMF). Cov tshuaj no ua lub luag haujlwm tseem ceeb hauv ntau yam txheej txheem tsim khoom, ua rau lawv tsis tseem ceeb rau peb cov neeg siv khoom.
Methylene Chloride, uas paub txog nws cov khoom siv ua kom yaj tau, yog siv dav hauv kev tshem xim, tshem cov roj, thiab ua cov khoom pab hauv kev tsim tshuaj. Nws qhov ua tau zoo hauv kev yaj ntau yam tshuaj ua rau nws yog qhov kev xaiv zoo hauv ntau daim ntawv thov kev lag luam. Ntawm qhov tod tes, Propylene Glycol (PG) yog ib qho tshuaj sib xyaw ua ke uas ua haujlwm ua cov dej noo, cov kuab tshuaj, thiab cov tshuaj tiv thaiv hauv cov khoom noj, tshuaj pleev ib ce, thiab tshuaj. Nws qhov xwm txheej tsis muaj tshuaj lom thiab muaj peev xwm khaws cov dej noo ua rau nws yog ib qho khoom xyaw tseem ceeb hauv ntau cov qauv. Dimethylformamide (DMF), ib qho kuab tshuaj polar aprotic, yog qhov tseem ceeb hauv kev tsim cov xov paj hluavtaws, yas, thiab tshuaj, muab kev yaj zoo heev rau ntau yam organic thiab inorganic compounds.
Nrog peb lub tsev rau khoom thiab cov khoom siv khoom uas laus lawm, peb ua kom peb cov neeg siv khoom tau txais cov khoom siv tshuaj no ntawm tus nqi sib tw yam tsis muaj kev cuam tshuam rau qhov zoo. Peb txoj kev cog lus rau kev ua tau zoo tshaj plaws thiab kev txaus siab ntawm cov neeg siv khoom tau tsim peb ua tus khub koom tes hauv kev lag luam tshuaj lom neeg. Thaum peb txuas ntxiv nthuav peb cov khoom muag, peb tseem mob siab rau kev txhawb nqa peb cov neeg siv khoom nrog cov khoom siv raw uas lawv xav tau los tsim kho tshiab thiab vam meej hauv lawv cov lag luam. Txawm hais tias koj xav tau Methylene Chloride, PG, DMF, lossis lwm yam tshuaj intermediates, peb nyob ntawm no los ua kom tau raws li koj cov kev xav tau zoo thiab zoo.
Lub sijhawm tshaj tawm: Lub Ob Hlis-21-2025