Kodi graphite yotambasuka ikakhala yotentha n’kukhala graphite yotambasuka ndi iti?

Makhalidwe okulitsa apepala la graphite lotha kufutukukandi osiyana ndi zinthu zina zokulitsa. Ikatenthedwa kufika kutentha kwinakwake, graphite yowonjezereka imayamba kukula chifukwa cha kuwonongeka kwa zinthu zomwe zimalowa mu lattice ya interlayer, yomwe imatchedwa kutentha koyambirira kokulitsa. Imakula kwathunthu pa 1000 ℃ ndipo imafika pa voliyumu yayikulu. Voliyumu yowonjezereka imatha kufika nthawi zoposa 200 kuposa mtengo woyambirira. Graphite yowonjezereka imatchedwa graphite yowonjezereka kapena graphite worm, yomwe imasintha kuchokera ku mawonekedwe oyambira a flake kupita ku mawonekedwe a nyongolotsi yokhala ndi density yochepa, ndikupanga gawo labwino kwambiri la kutentha. Graphite yowonjezereka si gwero la kaboni mu dongosolo lokulitsa, komanso gawo loteteza. Imatha bwinotetezani kutenthaPa moto, imakhala ndi mphamvu zochepa zotulutsa kutentha, kutayika pang'ono kwa unyinji komanso mpweya wochepa wa flue.

Kodi graphite yotambasuka ikakhala yotentha n’kukhala graphite yotambasuka ndi iti?

Makhalidwe a graphite yowonjezereka

① Kukana kuthamanga kwambiri,kusinthasintha, pulasitiki ndi kudzipaka mafuta;

② Kukana mwamphamvu kutentha kwambiri, kotsika,dzimbirindi kuwala kwa dzuwa;

③ Makhalidwe amphamvu kwambiri a chivomerezi;

④ Wamphamvu kwambirikuyendetsa bwino mphamvu;

⑤Mphamvu zotsutsana ndi ukalamba komanso zotsutsana ndi kupotoza.

⑥ Imatha kupirira kusungunuka ndi kulowa kwa zitsulo zosiyanasiyana;

⑦ Sili ndi poizoni, lilibe zinthu zoyambitsa khansa ndipo siliwononga chilengedwe.

Mayendedwe angapo a chitukuko cha graphite yowonjezereka ndi awa:

1. Graphite yowonjezeredwa pazifukwa zapadera

Mayeso akusonyeza kuti nyongolotsi za graphite zili ndi ntchito yoyamwa mafunde a electromagnetic. Graphite yokulirapo iyenera kukwaniritsa zofunikira izi: (1) kutentha kochepa koyambirira kokulirapo ndi kuchuluka kwakukulu kokulirapo; (2) Kapangidwe ka mankhwala ndi kokhazikika, kamasungidwa kwa zaka 5, ndipo chiŵerengero chokulirapo sichimawola kwenikweni; (3) Pamwamba pa graphite yokulirapo ndi yopanda dzimbiri ndipo palibe dzimbiri ku bokosi la cartridge.

2. Graphite yotambasulidwa yopyapyala

Graphite yaying'ono yokulirakulira imatanthauza graphite yokulirakulira yokhala ndi maukonde 300 yokhala ndi voliyumu yokulirakulira ya 100ml / g. Chogulitsachi chimagwiritsidwa ntchito makamaka pa choletsa motozokutira, zomwe zikufunika kwambiri.

3. Graphite yofutukuka yokhala ndi kutentha kwakukulu koyambirira kofutukuka

Kutentha koyambirira kwa graphite yotambasuka yokhala ndi kutentha kwakukulu koyambirira ndi 290-300 ℃, ndipo kuchuluka kwa kukula ndi ≥ 230ml / g. Mtundu uwu wa graphite yotambasuka umagwiritsidwa ntchito makamaka popangira zinthu zoletsa moto za pulasitiki ndi rabala.

4. Graphite yosinthidwa pamwamba

Pamene graphite yokulirapo imagwiritsidwa ntchito ngati chinthu choletsa moto, imakhudza kugwirizana pakati pa graphite ndi zigawo zina. Chifukwa cha kuchuluka kwa mchere pamwamba pa graphite, siili ndi lipophilic kapena hydrophilic. Chifukwa chake, pamwamba pa graphite payenera kusinthidwa kuti pakhale vuto logwirizana pakati pa graphite ndi zigawo zina. Zaperekedwa kuti ziyeretse pamwamba pa graphite, ndiko kuti, kuphimba pamwamba pa graphite ndi filimu yoyera yolimba, yomwe ndi vuto lovuta kuthetsa. Ikuphatikizapo membrane chemistry kapena surface chemistry. Laboratory ikhoza kutero, ndipo pali zovuta pakukulitsa mafakitale. Mtundu uwu wa graphite yoyera yokulirapo imagwiritsidwa ntchito makamaka ngati chophimba choletsa moto.

5. Kutentha koyambira kotsika komanso kutentha kotsika kwa graphite yokulirapo

Mtundu uwu wa graphite wofutukuka umayamba kufutukuka pa 80-150 ℃, ndipo kuchuluka kwa kufutukukako kumafika 250ml / g pa 600 ℃. Mavuto omwe amakumana nawo pokonzekera graphite wofutukuka ndi awa: (1) kusankha chothandizira choyenera; (2) Kulamulira ndi kulamulira mikhalidwe youma; (3) Kudziwa chinyezi; (4) Kuthetsa mavuto oteteza chilengedwe.