Dab tsi yog cov yam ntxwv ntawm expandable graphite tom qab cua sov rau hauv expandable graphite?

Expansion yam ntxwv ntawmexpandable graphite ntawvtxawv ntawm lwm yam expansion agents. Thaum rhuab mus rau ib tug tej yam kub, lub expandable graphite pib nthuav vim lub decomposition ntawm cov tebchaw absorbed nyob rau hauv lub interlayer lattice, uas yog hu ua thawj expansion kub. Nws nthuav tawm tag nrho ntawm 1000 ℃ thiab ncav cuag qhov siab tshaj plaws ntim. Qhov ntim nthuav dav tuaj yeem ncav cuag ntau dua 200 npaug ntawm tus nqi pib. Cov graphite nthuav dav yog hu ua nthuav graphite lossis graphite worm, uas hloov los ntawm cov khoom qub flake mus rau worm zoo nrog tsawg ntom, tsim ib txheej thermal rwb thaiv tsev zoo heev. Expanded graphite tsis yog tsuas yog cov pa roj carbon nyob rau hauv lub expansion system, tab sis kuj yog ib tug insulating txheej. Nws tuaj yeem ua tau zooinsulate cua sov. Hauv hluav taws, nws muaj cov yam ntxwv ntawm cov cua kub tso tawm qis, qhov poob qis me me thiab cov roj flue tsawg dua.

Dab tsi yog cov yam ntxwv ntawm expandable graphite tom qab cua sov rau hauv expandable graphite?

Cov yam ntxwv ntawm nthuav graphite

① Muaj zog ua haujlwm siab,yooj, plasticity thiab nws tus kheej lubrication;

② Muaj zog tiv taus siab, qis kub,corrosionthiab hluav taws xob;

③ Cov yam ntxwv seismic muaj zog heev;

④ Muaj zog heevconductivity;

⑤Muaj zog anti-aging thiab anti distortion zog.

⑥ Nws tuaj yeem tiv taus cov melting thiab nkag mus ntawm ntau yam hlau;

⑦ Nws yog non-toxic, tsis muaj carcinogens thiab tsis muaj kev puas tsuaj rau ib puag ncig.

Ob peb txoj kev loj hlob ntawm nthuav graphite yog raws li nram no:

1. Nthuav graphite rau lub hom phiaj tshwj xeeb

Cov kev sim qhia tau hais tias graphite worms muaj lub luag haujlwm ntawm absorbing electromagnetic tsis. Cov graphite nthuav dav yuav tsum ua tau raws li cov cai hauv qab no: (1) qis qis pib nthuav dav kub thiab loj expansion ntim; (2) Cov khoom siv tshuaj muaj zog ruaj khov, khaws cia rau 5 xyoos, thiab qhov nthuav dav feem ntau tsis lwj; (3) Qhov saum npoo ntawm nthuav graphite yog nruab nrab thiab tsis muaj corrosion rau cov ntaub ntawv cartridge.

2. Granular nthuav graphite

Cov khoom me me nthuav graphite feem ntau yog hais txog 300 mesh expandable graphite nrog ib qho expansion ntim ntawm 100ml / g. Cov khoom no tsuas yog siv rau cov nplaim retardanttxheej txheej, uas yog nyob rau hauv loj thov.

3. Expanded graphite nrog siab pib expansion kub

Qhov pib nthuav dav kub ntawm nthuav dav graphite nrog siab pib nthuav dav kub yog 290-300 ℃, thiab nthuav ntim yog ≥ 230ml / g. Hom kev nthuav dav graphite no tsuas yog siv rau cov nplaim hluav taws xob ntawm engineering plastics thiab roj hmab.

4. Nto hloov graphite

Thaum nthuav graphite yog siv los ua cov khoom siv hluav taws xob, nws cuam tshuam nrog kev sib raug zoo ntawm graphite thiab lwm yam khoom. Vim lub siab mineralization ntawm graphite nto, nws tsis yog lipophilic los yog hydrophilic. Yog li ntawd, qhov saum npoo ntawm graphite yuav tsum tau hloov kho kom daws tau qhov teeb meem ntawm kev sib raug zoo ntawm graphite thiab lwm yam khoom. Nws tau raug thov kom whiten lub graphite nto, uas yog, los npog lub graphite nto nrog ib tug khoom dawb zaj duab xis, uas yog ib qho nyuaj rau kev daws. Nws suav nrog membrane chemistry lossis chemistry saum npoo. Lub chaw soj nstuam yuav muaj peev xwm ua tau, thiab muaj teeb meem hauv kev lag luam. Qhov no hom dawb expandable graphite yog tsuas yog siv raws li nplaim retardant txheej.

5. Tsawg pib expansion kub thiab tsis tshua muaj kub nthuav graphite

Hom graphite nthuav dav no pib nthuav dav ntawm 80-150 ℃, thiab qhov ntim nthuav dav mus txog 250ml / g ntawm 600 ℃. Cov teeb meem hauv kev npaj nthuav dav graphite ntsib tus mob no yog: (1) xaiv tus neeg sawv cev intercalation tsim nyog; (2) Tswj thiab paub txog kev ziab khaub ncaws; (3) Kev txiav txim siab ntawm noo noo; (4) Kev daws teeb meem ntawm kev tiv thaiv ib puag ncig.