Dimethylformamide (lub npe DMF), tseem hu ua N, N-dimethylformamide, yog dimethyl hloov ntawm formamide, thiab ob pawg methyl nyob rau ntawm N (nitrogen) atoms, yog li nws yog lub npe. Raws li ib qho tseem ceeb tshuaj raw khoom thiab cov kuab tshuaj zoo heev, DMF yog dav siv nyob rau hauv polyurethane, acrylic, zaub mov additives, tshuaj, tshuaj tua kab, dyes, electronics thiab lwm yam lag luam.

DMF yog cov kua xim tsis muaj xim thiab pob tshab nrog lub siab kub kub, qhov chaw khov qis, cov tshuaj zoo thiab thermal stability, thiab yog miscible nrog dej thiab feem ntau cov kuab tshuaj organic. Nws yog cov kuab tshuaj nquag siv rau cov tshuaj tiv thaiv thiab hu ua "universal hnyav": DMF yog siv Cov acrylic fiber uas ua los ntawm cov txheej txheem qhuav spinning ntawm cov kuab tshuaj acrylic fiber muaj cov yam ntxwv ntawm hydrophobicity zoo, muaj zog npog lub zog, mos zoo nkauj, thiab txhais tes muaj zog; Nyob rau hauv zus tau tej cov ntaub ntub dej polyester hluavtaws tawv, DMF yuav siv tau raws li ib tug ntxuav thiab kho tus neeg sawv cev rau polyurethane resin. Nws yog siv rau txheej ntau yam ntaub ntawv txuas ntxiv, thiab thaum siv tawv dyeing, nws tuaj yeem ua rau cov xim ntawm cov tawv nqaij tsis sib xws thiab tsis fading; vim nws muaj peev xwm ua kom muaj zog, DMF yog siv los ua cov kuab tshuaj hauv cov xim thiab siv rau dyeing hluavtaws fibers, uas tuaj yeem txhim kho cov tawv nqaij sib xws. Dyeing khoom; Raws li ib qho kev xaiv hnyav siv nyob rau hauv cov txheej txheem sib cais, DMF tuaj yeem siv rau kev xaiv haum ntawm ntau yam hydrocarbons thiab inorganic gases. Piv txwv li, DMF yog siv los ntxuav ethylene kom tshem tawm acetylene, yog li purifying ethylene. DMF tseem tuaj yeem siv los rho tawm isoprene, piperylene, thiab lwm yam los ntawm cov pa roj carbon monoxide ntawm ethylene cog ntau lawm rau kev sib txuas ntawm unsaturated resin; DMF kuj tseem tuaj yeem siv los ua cov kuab tshuaj xaiv rau cov txheej txheem rho tawm hauv kev ua cov roj av. Piv txwv li: hauv polycarboxylic acid systems uas muaj cov khoom zoo sib xws thiab nyuaj rau kev sib cais, xws li isophthalic acid thiab terephthalic acid, lawv tuaj yeem sib cais yooj yim los ntawm DMF cov kuab tshuaj extraction lossis stepwise recrystallization.

Hauv cov tshuaj tiv thaiv organic, dimethylformamide tsis yog tsuas yog siv los ua cov tshuaj tiv thaiv hnyav, tab sis kuj yog ib qho tseem ceeb nruab nrab ntawm cov organic synthesis. Hauv kev lag luam tshuaj, raws li cov tshuaj hluavtaws nruab nrab, nws tau siv dav hauv kev tsim cov tshuaj doxycycline, cortisone, thiab sulfonamide; nyob rau hauv kev lag luam tshuaj tua kab, nws yog siv los ua cov khoom siv hluav taws xob zoo thiab cov tshuaj tua kab uas tsis muaj tshuaj lom thiab tshuaj tua kab.

Raws li cov tshuaj tiv thaiv nruab nrab rau cov tshuaj synthesis, DMF tuaj yeem siv los ua cov kuab tshuaj crystallization rau kev ua kom huv ntawm cov tshuaj. Hauv kev lag luam hluav taws xob, nws tuaj yeem siv los kho cov viscosity ntawm tus neeg sawv cev kho rau tooj liab clad laminates. DMF kuj tseem tuaj yeem siv los ua cov khoom hnyav los tsim cov khoom siv lead ua polymeric nrog BF3 (boron trifluoride), ua rau BF3 hloov ntawm cov roj mus rau cov khoom thiab yooj yim thauj. Raws li lub polar (hydrophilic) aprotic hnyav nrog lub siab kub, nws tuaj yeem txhawb nqa bimolecular nucleophilic hloov cov tshuaj tiv thaiv (SN₂) mechanism. Tsis tas li ntawd, dimethylformamide muaj cov nyhuv catalytic hauv hydrogenation, dehydrogenation, lub cev qhuav dej thiab dehydrohalogenation cov tshuaj tiv thaiv, uas txo cov tshuaj tiv thaiv kub thiab txhim kho cov khoom purity.

Nws zoo nkaus li tias DMF tsim nyog rau lub npe ntawm "universal hnyav". Qhov kev siv ntau yam no yuav nyuaj rau dhau lub sijhawm luv luv.

MIT-IVY INDUSTRY CO., LTD

Chemical Industry Park, 69 Guozhuang Road, Yunlong District, Xuzhou City, Jiangsu Province, Suav teb 221100

TEL: 0086-15252035038 FAX: 0086-0516-83769139

WHATSAPP:0086- 15252035038    EMAIL:INFO@MIT-IVY.COM