Tsis ntev los no, 1,4-butanediol (BDO) tau dhau los ua ib qho teeb meem kub hauv kev lag luam tshuaj lom neeg. Ua ib qho khoom siv tseem ceeb ntawm cov tshuaj lom neeg organic, nws tab tom txhaj tshuaj tshiab rau hauv ntau lub lag luam nrog nws cov ntawv thov dav dav, tsav tsheb kev loj hlob ntawm cov saw hlau loj.
Ntawm cov kab ntau lawm ntawm cov khoom polyester, 1,4-butanediol qhia txog tus nqi tsis muaj qhov hloov pauv. Kev tsim cov polybutylene terephthalate (PBT) vam khom nws heev. PBT, ua cov yas thermoplastic polyester engineering yas ua haujlwm siab, muaj cov khoom siv kho tshuab zoo heev, tiv taus kev xeb tshuaj lom neeg, thiab rwb thaiv hluav taws xob zoo heev thiab ruaj khov. Tam sim no, kev lag luam khoom siv hluav taws xob thiab khoom siv hluav taws xob tab tom nthuav dav sai, nrog ntau yam khoom siv hauv tsev ntse thiab cov khoom siv hluav taws xob precision tshwm sim tas li. Cov tsev nyob thiab cov khoom siv hluav taws xob ua los ntawm cov ntaub ntawv PBT tsis yog tsuas yog ua kom muaj kev nyab xeeb thiab ruaj khov ntawm cov khoom siv xwb tab sis kuj muab cov khoom zoo nkauj thiab ruaj khov, ua rau muaj kev thov ua lag luam ntau ntxiv. Kev lag luam tsim khoom tsheb kuj qhia tau tias nyiam PBT heev. Cov khoom xws li lub qhov rooj tsheb thiab lub bumpers ua los ntawm PBT tuaj yeem tiv taus kev puas tsuaj ntawm txoj kev nyuaj thaum txhim kho cov qauv ntawm lub tsheb.
Hauv cov chaw ua haujlwm tsim khoom ntawm thermoplastic polyurethane (TPU), 1,4-butanediol kuj yog ib qho tseem ceeb "tswvcuab". TPU sib xyaw ua ke qhov siab elasticity ntawm roj hmab nrog rau qhov yooj yim ua tiav ntawm yas, thiab nws cov khoom tiav lawm yog hnav-resistant, roj-resistant, thiab txias-resistant. Los ntawm cov hauv qab ntawm cov khau kis las txhua hnub, uas muab kev txhawb nqa xis nyob thiab ntev rau cov neeg nyiam kis las, mus rau cov kav dej, hlau thiab cable sheaths hauv cov xwm txheej kev lag luam, tiv thaiv kev nyab xeeb ntawm kev xa hluav taws xob thiab kev thauj khoom, thiab tom qab ntawd mus rau cov siv conveyor kev lag luam khiav ceev ceev, xyuas kom meej tias kev ua haujlwm du ntawm cov kab ntau lawm, TPU yog qhov chaw, thiab nws yog lub hauv paus kev ua tau zoo tso los ntawm 1,4-butanediol uas ua rau nws ua tau.
Cov kev lag luam txheej, kua mem, thiab kev luam ntawv thiab zas xim kuj tau hloov pauv tshiab tsis ntev los no ua tsaug rau 1,4-butanediol. Cov γ-butyrolactone uas tsim los ntawm nws muaj qhov kub siab thiab solubility zoo heev, muaj peev xwm yaj tau ntau yam organic compounds thiab polymers, ua rau cov xim ntawm cov txheej sib xws ntau dua, cov kua mem lo rau muaj zog dua, thiab cov qauv ntawm kev luam ntawv thiab zas xim meej dua thiab ci dua, pab txhawb rau kev txhim kho ntawm kev lag luam tshuaj ib txwm muaj. Ntxiv mus, ua cov khoom siv pib rau kev tsim cov txuj lom thiab cov tshuaj nruab nrab, γ-butyrolactone tab tom qhib lub qhov rooj tshiab rau kev tshawb fawb thiab kev txhim kho cov tshuaj zoo, thiab xav tias yuav tsim cov khoom tshiab dua los tso tawm hauv kev ua lag luam.
Nyob rau hauv lub zog ntawm kev lag luam roj teeb lithium, N-methylpyrrolidone (NMP), ib qho derivative ntawm 1,4-butanediol, tau nyiam ntau lub siab. Ua ib qho polar aprotic solvent, NMP tau kov yeej qhov teeb meem ntawm qhov tsis zoo solubility ntawm cov ntaub ntawv lithium roj teeb electrode, pab txhawb kev sib xyaw ua ke ntawm cov binders thiab cov ntaub ntawv nquag. Nws yog tus phab ej tsis paub qab hau tom qab kev txhim kho ntawm kev ua tau zoo thiab zoo ntawm cov roj teeb lithium, txhawb nqa lub zog tshiab ntawm kev lag luam xws li cov tsheb fais fab tshiab thiab cov khoom siv khaws cia hluav taws xob.
Ntawm ciam teb ntawm kev zam thiab textiles, tetrahydrofuran (THF) synthesized nrog kev koom tes ntawm 1,4-butanediol yog hloov mus rau hauv polytetrahydrofuran (PTMEG), uas dhau los ua cov khoom siv raw rau spandex fibers thiab polyurethane elastomers. Qhov no ua rau cov khaub ncaws ua si thiab cov khaub ncaws zoo nkauj dua rau cov kab ntawm tib neeg lub cev, sib xyaw ua ke kev nplij siab thiab kev zam, thiab muab cov ntaub nrog kev ywj pheej siab thiab kev ywj pheej.
Hauv kev tshawb fawb thiab kev tsim kho tshuaj, 1,4-butanediol ua haujlwm ntsiag to zoo li "tus phab ej tsis muaj npe nrov". Ua ib qho tseem ceeb hauv kev lag luam tshuaj, nws koom nrog cov kauj ruam sib xyaw ua ke ntawm qee cov tshuaj steroid thiab tshuaj tua kab mob. Nws zoo li cov khoom siv yooj yim rau kev tsim lub tsev molecular, pab cov kws tshawb fawb txiav cov qauv tshuaj zoo dua thiab muab cov mos txwv rau kev kov yeej cov kab mob nyuaj.
Nrog kev txhim kho tas mus li ntawm thev naus laus zis thiab kev tshawb nrhiav tob txog kev xav tau ntawm kev ua lag luam, kev lag luam 1,4-butanediol yuav txuas ntxiv nthuav dav, nrog rau kev lag luam sab saud thiab sab hauv qab koom tes hauv kev tsim kho tshiab thiab tshwm sim hauv ntau qhov chaw tshiab, sau ib tshooj tshiab ci ntsa iab hauv kev lag luam tshuaj lom neeg.
Lub sijhawm tshaj tawm: Lub Ib Hlis-08-2025
