Malo owiritsa: kuyang'ana kwathunthu pazinthu za DimethyFrormide
Dimethyfermormamide (DMF) ndi zosinthika zosinthika zomwe zimagwiritsidwa ntchito kwambiri mu mankhwala, ma mafakitale opanga mankhwala ndi zamagetsi. Munkhaniyi, tikambirana mwatsatanetsatane malo otentha a DMF, malo ofunikira thupi, komanso santhula zomwe zimathandiza pakugwiritsa ntchito.

1. Zoyambira za DMF
DMF ndi madzi opanda utoto wopanda utoto wokhala ndi fungo lofooka la ammonia. Ndi polar solvent ndipo ndi yolakwika ndi madzi ndi okhazikika okhazikika. Chifukwa cha kusungunuka bwino komanso malo owotcha, DMF amagwiritsidwa ntchito mu mankhwala a mankhwala, zotsatira za polymesistion, fiber ndi kupanga filimu. Podziwa malo otentha a DMF ndi amodzi mwa zinsinsi zogwiritsidwa ntchito moyenera.

2. Kodi malo owiritsa a DMF ndi chiyani?
DMF ili ndi malo otentha a 307 ° F (153 ° C). Malo owiritsa awa amalola kuti DMF igwiritsidwe ntchito kutentha kwambiri popanda kusinthika kwa zinthu zambiri zomwe zimayenera kutentha, monga njira yothetseratu, komanso njira zosinthika zokwanira. Mwa izi, DMF imapereka malo otetezeka komanso othandiza.

3. Mavuto a DMF owiritsa pa ntchito yake
Malo otentha a DMF amakhudza mwachindunji ntchito yake m'makampani osiyanasiyana. M'makampani ochulukitsa, malo owiritsa amatanthauza kuti DMF imatha kusungunula mankhwala osokoneza bongo-otha kutentha kwambiri, kukonza luso la kapangidwe ka mankhwala osokoneza bongo. Mu makampani ogulitsa mankhwala, ma DMF owiritsa amagwiritsidwa ntchito pamavuto omwe amafunikira kutentha kwambiri, monga kupanga ma remin ndi posyamides. Katunduyu amapanganso DMF zosungunulira zabwino kutentha kwambiri ndi inks.
Kumbali ina, malo otentha a DMF amakhudzanso kuchira kwawo komanso kukhazikika kwa chilengedwe. Komwe distillation imayenera kuchira DMF, malo ake owiritsa amasankha kugwiritsa ntchito mphamvu ndi kuchita bwino. Chifukwa chake, kugwiritsa ntchito mafakitale, osati mankhwala okha a DMF pakufunika kuganiziridwa, komanso zotsatira za malo owiritsa pazinthu zofunika kuyenera kugwiritsidwa ntchito.

4. Zotsatira za kutentha kwa DMF
Ngakhale malo owiritsa a DMF ndi 153 ° C pa mbozi ya m'mlengalenga, kusintha kwa kukakamizidwa kungakhudzenso malo owiritsa. Pamavuto otsika, malo owiritsa a DMF amachepetsa, zomwe ndi mwayi kwa njira zosinthira zomwe zimatheka kuti zitheke pamatenthedwe otsika mtengo. Kuzindikira ndi kudziwa za kusintha kwa DMF kuwira kolowera pamiyeso yosiyanasiyana ndi gawo lofunikira pakutha kukonza mafakitale.
5. Chitetezo ndi chilengedwe

DMF ndi mankhwala osasunthika, komanso ngakhale atakhala otentha kwambiri, chisamaliro chiyenera kumwedwa kuti mupewe ngozi za kusintha kwa kutentha kwambiri. Kuwonekera kwa nthawi yayitali kwa DMF kumatha kukhala ndi vuto la thanzi laumunthu, moyenera zoteteza monga kuvala mpweya wabwino ndikuwonetsetsa kuti mpweya wabwino uyenera kutengera malamulo okhwima Pewani kuipitsidwa kwa chilengedwe.

Chidule
Kumvetsetsa momwe ma DMF owotcha mafakitale ndi chidziwitso chofunikira kwa omwe akugwira ntchito mu mafakitale a mankhwala ndi mankhwala, ndipo malo owiritsa owiritsa a DMF pa 153 ° Kumvetsetsa koyenera kwa malingaliro a DMF owotcha pa njira ndi chitetezo kumatha kuthandiza kukonza njira, kukonza bwino ndikuwonetsetsa kuti mwachita opareshoni. Ndikofunikira kutsatira malamulo otetezeka komanso zachilengedwe mukamagwiritsa ntchito DMF kuonetsetsa kuti zabwino zake zimakwezedwa.