nkhani

Ethyl methyl carbonatendi mankhwala achilengedwe okhala ndi formula ya mankhwala C5H8O3, yomwe imadziwikanso kuti EMC. Ndi madzi opanda mtundu, owonekera bwino, komanso osasunthika omwe ali ndi poizoni wochepa komanso osasinthasintha. EMC imagwiritsidwa ntchito kwambiri ngati zinthu zopangira zinthu monga zosungunulira, zokutira, mapulasitiki, ma resin, zonunkhira, ndi mankhwala. Ingagwiritsidwenso ntchito pokonzekera mankhwala ena achilengedwe, monga polycarbonate. Pakupanga mafakitale, kupanga EMC nthawi zambiri kumagwiritsa ntchito ester exchange reaction kapena carbonation esterification reaction.

Dzina la malonda: Ethyl methyl carbonate

CAS：623-53-0

Fomula ya maselo：C4H8O3

EINECS：433-480-9

Gawo lomaliza la EMC limagwiritsa ntchito makamaka lithiamu-ion battery electrolyte, yomwe ndi imodzi mwa zinthu zinayi zazikulu zomwe zimagwiritsidwa ntchito pa mabatire a lithiamu-ion ndipo imatchedwa "magazi" a mabatire.

EMC imagawidwa m'magulu awiri kutengera kuyera: methyl ethyl carbonate ya mtundu wa mafakitale (99.9%) ndi EMC ya mtundu wa batri (99.99% kapena kupitirira apo). EMC ya mtundu wa mafakitale imagwiritsidwa ntchito makamaka mu kapangidwe ka organic ndi zosungunulira za mafakitale; Njira ya EMC ya mtundu wa batri imafuna zofunikira kwambiri ndipo imagwiritsidwa ntchito makamaka ngati zosungunulira za ma electrolyte a lithiamu-ion. Chifukwa cha kulepheretsa kwake kochepa komanso kusalinganika mu kapangidwe kake, ingathandize kuwonjezera kusungunuka kwa ma ion a lithiamu, kukonza kuchuluka kwa capacitance ndi mphamvu ya batri, ndipo yakhala imodzi mwa zosungunulira zisanu zazikulu za ma electrolyte a lithiamu-ion.

Gawo loyambira la EMC makamaka ndi lithiamu-ion batire electrolyte, yomwe ndi imodzi mwa zinthu zinayi zazikulu zomwe zimagwiritsidwa ntchito pa mabatire a lithiamu-ion ndipo imatchedwa "magazi" a mabatire. M'zaka zaposachedwa, chifukwa cha kukula kwachangu kwa makampani atsopano opanga magalimoto amphamvu, makampani opanga ma electrolyte a lithiamu-ion ku China alowa munthawi yakukula mwachangu. Kuchuluka kwa ma electrolyte m'malo mwawo kwawonjezeka kwambiri, ndipo kusintha kwa zinthu zomwe zatumizidwa kunja kwachitika, zomwe zapangitsa kuti kufunikira kwa EMC kukule kwambiri pamsika waku China. Malinga ndi "2023-2027 China EMC Industry Market Deep Research and Development Prospects Report" yomwe idatulutsidwa ndi Xinsijie Industry Research Center, mu 2021, kufunikira kwa EMC ku China kunali matani 139500, kuwonjezeka kwa chaka ndi chaka kwa 94.7%.

Msika waEMCyawonetsa kukula kosalekeza m'zaka zingapo zapitazi. Izi makamaka chifukwa cha kugwiritsidwa ntchito kwambiri kwa EMC m'mafakitale osiyanasiyana, monga zosungunulira, zokutira, mapulasitiki, utomoni, zonunkhira, ndi mankhwala. Kuphatikiza apo, ndi chitukuko cha chuma cha padziko lonse lapansi komanso kusintha kwa miyoyo ya anthu, kufunikira kwa EMC kukukulirakulira pang'onopang'ono.

Pakadali pano, madera akuluakulu ogula pamsika wa EMC akuphatikizapo dera la Asia Pacific, Europe, ndi North America. Dera la Asia Pacific ndiye dera lalikulu ogula msika wa methyl ethyl carbonate, pomwe China, Japan, ndi South Korea ndi omwe amapanga ndi kugula EMC. Msika wa EMC ku Europe ndi North America ukukula pang'onopang'ono, ndipo Germany, United Kingdom, United States, ndi Canada ndi omwe amagula kwambiri EMC.

Mtsogolomu, kukula kwa msika wa EMC kudzakhudzidwa ndi chitukuko cha zachuma ndi mafakitale padziko lonse lapansi. Chifukwa cha kukwera kwa misika yatsopano komanso kupita patsogolo kwaukadaulo kosalekeza, kufunikira kwa EMC pamsika kudzapitirira kukula. Kuphatikiza apo, kuteteza chilengedwe ndi chitukuko chokhazikika zidzakhalanso zinthu zofunika kwambiri pamsika wa EMC, zomwe zimalimbikitsa kupanga ndi kugwiritsa ntchito EMC kuti ikhale yosamalira chilengedwe komanso yokhazikika.