Kodi ma graphite omwe amatha kukulitsidwa ndi otani atatenthedwa kukhala graphite yowonjezereka?

Makhalidwe a kukula kwagraphite pepala yowonjezerandizosiyana ndi zina zowonjezera. Mukatenthedwa ndi kutentha kwina, graphite yowonjezereka imayamba kukula chifukwa cha kuwonongeka kwa mankhwala omwe amalowetsedwa mu interlayer lattice, yomwe imatchedwa kutentha koyambako. Imakula kwathunthu pa 1000 ℃ ndipo imafika pamlingo waukulu. Voliyumu yowonjezera imatha kufika nthawi zopitilira 200 za mtengo woyamba. Ma graphite owonjezera amatchedwa graphite wowonjezera kapena nyongolotsi ya graphite, yomwe imasintha kuchokera ku mawonekedwe a flake kupita ku mawonekedwe a nyongolotsi yokhala ndi kachulukidwe kakang'ono, ndikupanga wosanjikiza wabwino kwambiri wotsekera matenthedwe. Kuwonjezedwa graphite si gwero mpweya mu dongosolo kukulitsa, komanso wosanjikiza insulating. Ikhoza mogwira mtimainsulate kutentha. Pamoto, imakhala ndi mawonekedwe a kutentha kochepa, kutayika kochepa komanso mpweya wochepa.

Kodi ma graphite omwe amatha kukulitsidwa ndi otani atatenthedwa kukhala graphite yowonjezereka?

Makhalidwe a graphite yowonjezera

① Kukanika kwamphamvu,kusinthasintha, pulasitiki ndi kudzipaka mafuta okha;

② Kukana kwambiri kutentha, kutentha kochepa,dzimbirindi ma radiation;

③ Makhalidwe amphamvu kwambiri a chivomezi;

④ Yamphamvu kwambiriconductivity;

⑤Mphamvu zotsutsana ndi ukalamba komanso zotsutsa zosokoneza.

⑥ Imatha kukana kusungunuka ndi kulowa kwa zitsulo zosiyanasiyana;

⑦ Ilibe poizoni, ilibe ma carcinogens ndipo imawononga chilengedwe.

Mayendedwe angapo akutukuka kwa graphite yowonjezera ndi awa:

1. graphite yowonjezera pazifukwa zapadera

Zoyeserera zikuwonetsa kuti nyongolotsi za graphite zili ndi ntchito yotengera mafunde a electromagnetic. The kukod graphite ayenera kukwaniritsa zofunika izi: (1) otsika koyamba kukula kutentha ndi lalikulu kukula voliyumu; (2) Mankhwalawa amakhala okhazikika, amasungidwa kwa zaka 5, ndipo chiŵerengero chokulitsa sichimawola; (3) Pamwamba pa graphite yokulitsidwa silowerera ndale ndipo ilibe dzimbiri ku cartridge case.

2. Granular yowonjezera graphite

Small tinthu kukodzedwa graphite makamaka amatanthauza 300 mauna expandable graphite ndi kukula buku la 100ml / g. Izi makamaka ntchito flame retardantzokutira, zomwe zikufunika kwambiri.

3. graphite yowonjezedwa yokhala ndi kutentha kwakukulu koyambira kokulirapo

Kutentha koyambirira kwa graphite komwe kumakulitsidwa ndi kutentha kwakukulu koyambirira ndi 290-300 ℃, ndi voliyumu yowonjezera ndi ≥ 230ml / g. Mtundu woterewu wa graphite wokulitsidwa umagwiritsidwa ntchito makamaka pakuwotcha moto kwa mapulasitiki aumisiri ndi labala.

4. Pamwamba kusinthidwa graphite

Pamene kukodzedwa graphite ntchito monga lawi retardant zinthu, kumakhudza ngakhale graphite ndi zigawo zina. Chifukwa cha kuchuluka kwa mchere wa graphite pamwamba, si lipophilic kapena hydrophilic. Choncho, pamwamba pa graphite ayenera kusinthidwa kuthetsa vuto la ngakhale graphite ndi zigawo zina. Zapangidwa kuti ziyeretse pamwamba pa graphite, ndiko kuti, kuphimba pamwamba pa graphite ndi filimu yoyera yolimba, yomwe ndi vuto lovuta kuthetsa. Zimaphatikizapo chemistry ya membrane kapena pamwamba chemistry. Laboratory ikhoza kutero, ndipo pali zovuta m'mafakitale. Mtundu uwu wa white expandable graphite umagwiritsidwa ntchito makamaka ngati ❖ kuyanika koletsa moto.

5. Kutentha kochepa koyambirira kokulirapo ndi kutentha kochepa kumakulitsa graphite

Mtundu wa graphite kukodzedwa akuyamba kukula pa 80-150 ℃, ndi buku kukula ukufika 250ml / g pa 600 ℃. Zovuta pokonzekera msonkhano wowonjezereka wa graphite ndi izi: (1) kusankha wothandizira woyenerera; (2) Kulamulira ndi kukwanitsa kuyanika zinthu; (3) Kutsimikiza kwa chinyezi; (4) Kuthetsa mavuto oteteza chilengedwe.