sChemical-Plant

xov xwm

Ib txwm npaj txoj kev ua npuas ncauj ceramics

Cov txheej txheem kev npaj ua npuas ncauj ceramics:

Foaming method: Cov txheej txheem foaming tuaj yeem siv los npaj cov khoom siv foamed ceramic nrog cov duab nyuaj kom tau raws li daim ntawv thov ntawm qee lub sijhawm tshwj xeeb;ntxiv cov fibers ceramic uas tsim nyog rau cov hmoov ceramic tuaj yeem txhim kho cov txheej txheem no thiab ua kom lub cev ntsuab muaj zog thaum lub sij hawm sintering kom tsis txhob chalking thiab vau.

Txoj kev Sol-gel: Txoj kev sol-gel feem ntau yog siv los npaj cov ntaub ntawv microporous ceramic nrog pore diameters ntawm qib nanometer.Txoj kev no tseem tuaj yeem txhim kho los npaj cov ntaub ntawv ua npuas ncauj ceramic.Siv cov tshuab sol-gel los npaj cov ntaub ntawv ua npuas ncauj, cov viscosity ntawm lub kaw lus nce sai heev thaum lub sij hawm hloov dua siab tshiab ntawm sol mus rau gel, yog li stabilizing cov npuas tsim nyob rau hauv thaum ntxov theem thiab ua kom yooj yim foaming.Piv nrog rau lwm cov txheej txheem, cov txheej txheem no tshwj xeeb.Nws tseem tuaj yeem npaj ua npuas ncauj ceramics nrog nanometer-scale pore qhov ntau thiab tsawg thiab cov pore faib.Nws yog tam sim no dhau los ua qhov kev tshawb fawb tshaj plaws hauv kev npaj cov yeeb yaj kiab inorganic.

Ntxiv pore qub txoj kev: npaj ceramic ua npuas ncauj los ntawm kev ntxiv pore yav dhau los rau cov khoom xyaw ceramic, siv lub pore qub los tuav ib qho chaw hauv lub cev ntsuab, thiab tom qab ntawd tom qab sintering, lub pore qub tawm hauv cov matrix los tsim cov pores los npaj ua npuas ncauj ceramics.Cov duab thiab qhov loj ntawm qhov pore qub hais txog cov duab thiab qhov loj ntawm qhov pores ntawm cov khoom siv ua npuas ncauj ceramic.Cov txheej txheem molding feem ntau suav nrog molding, extrusion, isostatic nias, dov, txhaj tshuaj, thiab slurry pouring.Txoj kev no tuaj yeem siv los npaj cov ntaub ntawv nrog cov duab sib txawv thiab cov qauv pore sib txawv, tab sis qhov sib xws ntawm qhov pore faib tsis zoo.

Organic precursor impregnation method: Txoj kev npaj zoo tshaj plaws rau ua npuas ncauj ceramics yog cov txheej txheem organic precursor impregnation, thiab cov txheej txheem ntws tau qhia hauv daim duab.Cov foamed ceramic npaj los ntawm txoj kev molding no tau siv dav hauv ntau lub teb thiab tau ua tiav cov txiaj ntsig pom tseeb.Ntxiv rau kev tswj cov slurry kev ua tau zoo, zoo optimize lub inorganic binder system, thiab nruj me ntsis tswj cov slurry impregnation txheej txheem, tuaj yeem txhim kho kev ua tau zoo ntawm cov khoom ua npuas ncauj ceramic.Ceramic hmoov solvents thiab additives;xaiv cov organic ua npuas ncauj rau kev npaj slurry;pretreatment;immersion kev kho mob;tshem tawm ntau tshaj slurry;ziab;tshem tawm cov organic ua npuas ncauj;tua.Txawm li cas los xij, cov txheej txheem organic precursor dipping muaj qhov tsis zoo, uas yog, cov khoom lag luam Cov qauv pore, tshwj xeeb tshaj yog cov pore loj, nyob ntawm cov qauv pore thiab qhov pore loj ntawm cov organic ua npuas ncauj.Qhov mesh loj ntawm cov organic ua npuas ncauj yog txwv, uas txwv qhov pore loj thiab cov qauv ntawm cov khoom ua npuas ncauj ceramic tau txais.Zhu Xinwen thiab lwm tus siv peb-dimensional reticulated organic ua npuas ncauj ua tus nqa khoom, ua ntej npaj ib lub mesh dawb paug nrog siab porosity thiab yuav luag tsis muaj plugging los ntawm ib tug impregnation txheej txheem, thiab tau ib tug preform nrog ib tug tej lub zog tom qab tso tawm thiab pre-sintering.Lub ntug ntawm lub preform yog ib tug xoob ntxeem tau qauv, uas daws qhov teeb meem no zoo.


Post lub sij hawm: Oct-12-2021