Lub boiling point ntawm amide hnyav yog ze ze rau nws cov qauv molecular, molecular hnyav, thiab intermolecular rog; Nws ua hauj lwm raws li ib qho tseem ceeb parameter rau kev ntsuam xyuas volatility, txiav txim siab distillation tej yam kev mob, thiab ntsuam xyuas tsim nyog rau tej yam kev lag luam txheej txheem. Cov kuab tshuaj amide muaj xws li N, N-dimethylformamide (DMF), N, N-dimethylacetamide (DMAC), thiab N-methyl-2-pyrrolidone (NMP). Ntawm atmospheric siab, cov ntsiab lus kub yog kwv yees li 153℃rau DMF, 165-166℃rau DMAC, thiab 202℃rau NMP. Cov duab no qhia tias cov kuab tshuaj amide muaj cov ntsiab lus kub kub; Tsis zoo li cov kuab tshuaj uas tsis tshua muaj kub kub xws li acetone lossis ethyl acetate, lawv tsis evaporate sai ntawm chav tsev kub. Cov yam ntxwv no ua rau lawv zoo rau cov txheej txheem kev lag luam uas xav tau lub sijhawm ua haujlwm ntev dua, hnyav hnyav, lossis qhov hnyav hnyav. Txawm li cas los xij, vim tias cov ntsiab lus kub kub sib txawv ntawm qhov sib txawv ntawm cov kuab tshuaj sib txawv, kev xaiv yuav tsum suav nrog cov khoom xws li hnyav purity, vapor siab, thermal stability, thiab kev sib raug zoo nrog cov ntaub ntawv-boiling point ib leeg tsis yog lub hauv paus txaus rau kev txiav txim siab ua haujlwm.
Lub boiling point ntawm cov kuab tshuaj amide ncaj qha cuam tshuam cov kuab tshuaj rov qab, cov khoom ziab, thiab kev ua haujlwm ntawm cov khoom siv ntau lawm. Piv txwv li, hauv kev ua cov polymers, kev tsim cov txheej txheem, thiab kev tsim cov khoom siv roj teeb, DMF, DMAC, thiab NMP feem ntau siv los ua cov kuab tshuaj rau cov resins lossis polymers. Thaum lawv cov ntsiab lus kub kub pab tswj cov kev daws teeb meem nyob rau hauv qhov kub thiab txias, lawv kuj tseem hais tias kev tshem tawm cov kuab tshuaj tom qab thiab rov qab tuaj yeem xav tau kev siv hluav taws xob ntau dua lossis ua tib zoo tsim cov txheej txheem tsim. Nyob rau hauv cov kab ntau lawm qhov twg cov kuab tshuaj rov qab yog tsim nyog, tsim nyog distillation los yog lub tshuab nqus tsev evaporation tej yam kev mob-txiav txim siab raws li boiling point, vapor siab, thiab muaj pes tsawg leeg ntawm cov sib tov-yuav tsum tau xaiv los txhim kho kev rov qab efficiency thiab txo cov residual hnyav. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias qhov kub ntawm qhov kub tsis yog qhov sib txuam nrog cov thermal decomposition kub, thiab nws yuav tsum tsis txhob siv ncaj qha raws li qhov ntsuas kub zoo rau cov khoom siv. Tsis tas li ntawd, nyob rau hauv qhov txo qis, qhov kub ntawm qhov hnyav yuav txo qis thaum lub siab txo qis. Hauv kev siv tiag tiag, xa mus rau cov khoom tshwj xeeb Cov Ntaub Ntawv Cov Ntaub Ntawv (TDS) thiab Daim Ntawv Ceeb Toom Kev Nyab Xeeb (SDS) kom tswj tau cov cua sov kom tsim nyog, thaum ua kom muaj cua txaus, ntim, thiab kev tiv thaiv tus kheej.
