1,4-Butanediol (BDO) yog ib qho kua roj tsis muaj xim uas tau nyiam ntau qhov kev saib xyuas hauv ntau yam lag luam vim nws cov yam ntxwv tshwj xeeb thiab kev ua tau ntau yam. Tsis yog tsuas yog cov tshuaj no sib xyaw nrog dej, ua rau nws yog ib qho tshuaj yaj zoo heev, tab sis nws kuj tseem siv tau ua cov tshuaj tiv thaiv kev khov tsis muaj tshuaj lom, cov khoom noj emulsifier, thiab cov neeg sawv cev hygroscopic. Nws cov ntawv thov dav dav hauv kev lag luam tshuaj thiab khoom noj nrog rau cov organic synthesis, ua rau nws yog ib qho tshuaj reagent tseem ceeb hauv cov txheej txheem tsim khoom niaj hnub no.
Ib qho ntawm cov yam ntxwv tseem ceeb tshaj plaws ntawm1,4-butanediolyog nws lub peev xwm los ua cov kuab tshuaj. Hauv kev tshawb fawb txog cov organic chemistry, cov kuab tshuaj ua lub luag haujlwm tseem ceeb hauv kev pab txhawb kev ua tshuaj thiab yaj cov tshuaj. BDO qhov sib xyaw nrog dej tso cai rau nws siv tau zoo hauv ntau yam kev ua tshuaj, tshwj xeeb tshaj yog hauv cov roj chromatography qhov twg nws ua haujlwm ua kua dej ruaj khov. Cov khoom no yog qhov tseem ceeb rau kev sib cais thiab kev tshuaj xyuas cov khoom sib xyaw ua ke, ua rau BDO yog ib qho cuab yeej muaj txiaj ntsig rau cov kws tshuaj thiab cov kws tshawb fawb.
Ntxiv rau nws lub luag haujlwm ua cov kuab tshuaj, 1,4-butanediol tau lees paub rau nws cov khoom tsis muaj tshuaj lom, uas ua rau nws zoo tagnrho rau kev lag luam zaub mov. Ua ib qho khoom noj emulsifier, BDO pab tswj cov khoom sib xyaw uas yuav sib cais, xws li roj thiab dej. Cov khoom no tseem ceeb heev thaum tsim cov kua ntses, cov khoom qab zib thiab lwm yam khoom noj uas xav tau cov qauv thiab tsos zoo sib xws. BDO qhov kev nyab xeeb profile ua kom ntseeg tau tias nws tuaj yeem siv yam tsis muaj kev pheej hmoo rau kev noj qab haus huv rau cov neeg siv khoom, ntxiv txhim kho nws qhov kev thov hauv kev siv zaub mov.
Tsis tas li ntawd, qhov hygroscopicity ntawm cov khoom1,4-butanediol tso cai rau nws nqus cov dej noo los ntawm ib puag ncig, ua rau nws yog cov khoom xyaw nquag hauv ntau yam qauv. Cov cuab yeej no yog qhov tshwj xeeb tshaj yog nyob rau hauv kev lag luam tshuaj, qhov twg kev tswj hwm qhov ruaj khov thiab kev ua tau zoo ntawm cov khoom xyaw nquag yog qhov tseem ceeb. Los ntawm kev ntxiv BDO rau cov qauv, cov chaw tsim khoom tuaj yeem txuas lub neej txee thiab kev ua tau zoo ntawm lawv cov khoom, kom ntseeg tau tias lawv ua tau raws li cov qauv siab ntawm kev lag luam kev kho mob.
Qhov ua tau ntau yam ntawm1,4-butanedioltxuas ntxiv mus dhau cov khoom noj thiab tshuaj. Hauv kev tsim cov organic, BDO yog lub tsev thaiv rau kev tsim ntau yam tshuaj lom neeg thiab cov ntaub ntawv. Nws muaj peev xwm ua rau cov tshuaj tiv thaiv polymerization kom nws tuaj yeem hloov mus ua polybutylene terephthalate (PBT), ib qho thermoplastic siv dav hauv kev tsim cov khoom siv tsheb, cov khoom siv hluav taws xob thiab cov khoom siv rau cov neeg siv khoom. Qhov kev hloov pauv no qhia txog BDO lub luag haujlwm ua lub hauv paus tseem ceeb rau cov khoom siv ua ntej rau kev tsim khoom niaj hnub.
Raws li kev lag luam txuas ntxiv mus thiab nrhiav kev daws teeb meem ruaj khov, qhov kev thov rau cov tshuaj tsis muaj tshuaj lom, ntau yam kev ua haujlwm xws li 1,4-butanediol yuav loj hlob. Nws cov ntawv thov hauv ntau qhov chaw xws li zaub mov, tshuaj thiab cov ntaub ntawv tshawb fawb qhia txog nws qhov tseem ceeb hauv cov txheej txheem tshuaj niaj hnub no. Nrog kev tshawb fawb thiab kev txhim kho txuas ntxiv, BDO cov kev siv peev xwm yuav nthuav dav, paving txoj hauv kev rau cov khoom tshiab thiab cov kev daws teeb meem uas ua tau raws li qhov xav tau ntawm lub ntiaj teb hloov pauv tas li.
Xaus lus,1,4-butanediol yog ib qho tshuaj zoo kawg nkaus uas ua lub luag haujlwm tseem ceeb hauv ntau yam lag luam. Nws cov khoom ua cov kuab tshuaj, cov tshuaj tiv thaiv tsis muaj tshuaj lom, cov khoom noj emulsifier thiab hygroscopic tus neeg sawv cev ua rau nws yog ib qho khoom muaj nqis hauv kev lag luam tshuaj thiab khoom noj nrog rau hauv kev tsim cov organic. Thaum peb txuas ntxiv tshawb nrhiav lub peev xwm ntawm cov tshuaj no, nws yog qhov tseeb tias 1,4-butanediol yuav txuas ntxiv ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov tshuaj niaj hnub thiab kev lag luam.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-27-2024