Coal raws li kaolin yog dav siv nyob rau hauv ntau yam kev lag luam vim nws yooj yim ntxhia muaj pes tsawg leeg, ntshiab tshuaj muaj pes tsawg leeg, kub tsis kam, zoo dispersibility, ruaj khov tshuaj, thiab zoo heev hluav taws xob rwb thaiv tsev zog. Rau kev txhim kho thiab siv cov thee raws li tawv kaolin, cov lus qhia tshwj xeeb yuav ua rau nws daim ntawv thov hauv cov haujlwm hauv qab no:
Kev lag luam tshuaj
(1) Hauv kev tsim cov khoom sib txuas ntawm txhuas, cov ntsiab lus ntawm Al2O3 hauv thee raws li kaolin feem ntau siab, feem ntau ntawm 35% thiab 39%. Tom qab kev tsim cov tshuaj lom neeg hauv kev lag luam, ntau yam khoom muaj nqis ntxiv ntawm txhuas ntsev xws li alumina thiab nanoscale tuaj yeem tsim - Aluminium oxide.
① AlCl3- ua haujlwm ua tus neeg sawv cev hardening hauv kev ua haujlwm ntawm precision casting; Siv los ua tus neeg sawv cev hydrocracking hauv kev lag luam roj av; Ua haujlwm raws li tus neeg saib xyuas qhov loj me thiab nag lossis daus hauv kev lag luam papermaking; Tsis tas li ntawd, nws kuj yog siv los ua cov ntoo khaws cia, dej phwj cais tus neeg saib xyuas, thiab lwm yam.
② Aluminium sulfate feem ntau yog siv los ua cov ntaub ntawv hauv kev lag luam ntawv, thiab tseem siv rau hauv kev txuag ntoo, ua npuas dej tua hluav taws, flocculant, mordant, kho mob astringent thiab lwm yam.
③ Al (OH) 3- siv los ua cov pa taws tsis muaj pa taws retardant muab tso rau hauv polyvinyl chloride plastics thiab polymers; Siv los ua ib qho catalyst thiab nplaim taws retardant muab tub lim rau synthesizing cov khoom siv roj hmab; Raws li tus neeg sawv cev whitening thiab brightening, nws yog siv nyob rau hauv papermaking thiab ua ib tug muab tub lim rau cov ntaub pua plag dag.
④ Nanoscale - Al2O3 yog siv hauv kev lag luam hluav taws xob los tsim cov khoom siv hluav taws xob sib xyaw ua ke, pob tshab ceramic teeb, cov kab hlau nplaum sib nqus, thiab cov hmoov fluorescent ua cov khoom siv rau cov khoom siv hluav taws xob zoo thiab cov khoom siv laser.
(2) Kev tsim khoom ntawm silicone, iav dej, thiab cov pa roj carbon dub
Thaum lub sij hawm tsim tshuaj lom neeg ntawm txhuas ntsev los ntawm thee raws kaolin, ib tug loj npaum li cas ntawm cov tshuaj tiv thaiv residues yog generated, feem ntau yog tsim los ntawm SiO2, uas yuav siv tau raws li raw cov ntaub ntawv rau kev ua thiab ua sodium silicate thiab dawb carbon dub. Solub acid leaching residue nyob rau hauv caustic soda, lim thiab tshem tawm cov residue, ces ntxiv ib tug electrolyte rau sodium silicate tov, thiab los ntawm acidification kev kho mob, precipitate lub hydrated SiO2. Tom qab kev kho mob, cov khoom yog lim, ntxuav, thiab qhuav kom tau txais cov pa roj carbon dub.
(3) Synthetic zeolite
Nyob rau hauv xyoo tas los no, cov kws tshawb fawb tau tshawb xyuas qhov tob ntawm kev siv cov thee raws li cov av calcined los npaj zeolite. Cov thee zoo raws li kaolin muaj qhov sib piv molecular ntawm Al2O3 / SiO2 zoo ib yam li 4A molecular sieve, ua rau nws tsim nyog rau kev tsim cov zeolites. Cov txheej txheem hydrothermal crystallization tuaj yeem tsim ntau hom zeolites xws li A, X, Y, thiab lwm yam. Ntawm lawv, 4A zeolite yog siv los ua cov tshuaj ntxuav tes thiab tuaj yeem hloov cov sodium tripolyphosphate hauv kev tsim cov phosphorus dawb ntxhua khaub ncaws ntxhua khaub ncaws thiab xab npum, yog li txo ib puag ncig. ua paug.
Kev siv hauv kev tsim cov khoom siv hauv tsev
(1) Geopolymer cement
Raws li hom tshiab ntawm cov khoom siv cementitious, geopolymer cement feem ntau yog tsim los ntawm cov zaub mov amorphous, thiab cov ntxhia hauv cov pob zeb hauv av yog qhov txawv ntawm Portland cement. Lub ntsiab valence bonds ntawm geopolymer cement yog ionic bonds thiab covalent bonds, nrog van der Waals daim ntawv cog lus tsuas yog ua lub luag hauj lwm pab, thaum tsoos cement siv van der Waals bonds thiab hydrogen bonds ua lub ntsiab valence daim ntawv cog lus, ua rau muaj kev ua tau zoo ntawm geopolymer cement piv. rau tsoos Portland cement.
(2) Concrete admixtures
Tom qab kub kub calcination, cov khoom calcined ntawm kaolin (feem ntau yog metakaolin) nthuav tawm ib qho kev tsis sib xws ntawm cov atoms sab hauv, thiab yog thermodynamically nyob rau hauv lub xeev metastable, ua rau nws muaj chemical hydration tshua nrog dej. Cov khoom siv dej muaj xws li CSH gel, hydrated calcium aluminate, hydrated sulfur calcium aluminate, thiab lwm yam, uas tuaj yeem hloov silica fume thiab feem ntau sau rau hauv cov khoom sib xyaw ua ke.
(3) Xim txheej
Tam sim no, cov xim pleev xim yog qhov tseem ceeb ntawm daim ntawv thov ntawm calcined kaolin hauv Suav teb, thiab kaolin feem ntau yog muab tub lim thiab xim hloov hauv cov xim pleev xim. Rau kev siv hauv cov xim pleev xim, calcined thee raws li kaolin muaj qhov pom tseeb zoo. Ntxiv nrog rau muaj cov tshuaj inertness ntawm cov kaolin zoo tib yam, muaj peev xwm muaj peev xwm, zoo tshaj plaws ncua kev kawm flowability, tsis tshua muaj nqi, xim dawb, thiab txo qhov xav tau ntawm cov xim kim kim, nws kuj muaj qhov zoo xws li cov khoom siv kho qhov muag zoo, cov duab tsis zoo, cov roj nqus dej siab. , siab pigment ntim concentration, nyuaj aging, hnav tsis kam, thiab yooj yim emulsification hauv dej los yog roj xov xwm.
Daim ntawv thov hauv kev lag luam roj hmab thiab yas
Tom qab kev hloov kho saum npoo, cov calcined thee raws li kaolin muaj qhov zoo sib xws ntawm cov khoom siv roj hmab, yooj yim rau wetted los ntawm cov khoom siv roj hmab, muaj cov hmoov noj ceev ceev, tuaj yeem txhim kho cov nyhuv dispersion ntawm cov khoom siv roj hmab, thiab ua tiav cov txiaj ntsig zoo. ntawm cov khoom siv roj hmab.
(1) Kev siv roj hmab
Tom qab hloov kho, cov pa calcined kaolin tuaj yeem muab ntxiv rau cov roj hmab kom ua tiav cov nyhuv semi reinforcing lossis ntau dua. Tsis tas li ntawd, nws tuaj yeem txhawb nqa colloid crosslinking thiab dispersion mus rau ib qho twg, txhim kho vulcanization efficiency, txhim khu kev ua tau zoo, thiab ua kom cov nyiaj tau los ntxiv thiab cov txiaj ntsig kev lag luam.
(2) Kev siv hauv cov yas
Calcined kaolin yog siv los ua ib qho muab tub lim hauv engineering thiab cov yas dav dav, nrog cov nyiaj filling feem ntau li ntawm 20% txog 40%. Coal raws li calcined kaolin siv rau cov yas tuaj yeem txhim kho thiab txhim khu kev ua haujlwm zoo xws li iav hloov kub, tensile zog, thiab modulus. Tsis tas li ntawd, thee raws li calcined kaolin feem ntau yog siv los ua ib qho ntxiv hauv kev ua liaj ua teb yas tsev cog khoom zaj duab xis vim nws muaj peev xwm los thaiv cov hluav taws xob deb-infrared. Nws muaj lub luag haujlwm ntawm kev tswj hwm qhov tsim nyog nruab hnub thiab hmo ntuj nyob rau hauv lub tsev cog khoom, ua kom cov huab cua tsis muaj txiaj ntsig ntawm cov yeeb yaj kiab ua liaj ua teb, thiab txhim kho cov teeb pom kev zoo sib xws. Nws yog ib qho kev pabcuam zoo tshaj plaws rau rwb thaiv tsev ntawm cov yeeb yaj kiab ua liaj ua teb.
Cov ntaub ntawv sau
Calcined kaolin yog siv rau hauv kev lag luam papermaking, feem ntau yog muab tub lim hauv kev lag luam papermaking. Tom qab kev hloov kho saum npoo thiab txheej nrog titanium dioxide, thee raws li calcined kaolin muaj cov haujlwm zoo sib xws rau titanium dioxide. Vim nws cov xim siab thiab npog lub zog, nws yog qhov tshwj xeeb tshaj yog siv rau hauv cov tshuab scraper high-speed.
Muaj porcelain
(1) Ceramics
Ceramics rau high-temperature qauv tau tsim sai heev nyob rau hauv xyoo tas los no, dav hloov ib txwm hlau cov ntaub ntawv nyob rau hauv lub tshav pob ntawm high-temperature engineering cov ntaub ntawv. Cov khoom siv ceramic no muaj cov tshuaj tiv thaiv zoo corrosion, thermal seismic tsis kam, thiab kub-kub stability. Siv cov roj argon ntws los tswj huab cua, SiCw / Al2O3 ceramic hmoov tau npaj los ntawm kev sib xyaw ntuj kaolin thiab nanoscale carbon dub ntawm qhov kub thiab txias. Cov khoom tsim SiC whiskers muaj ib txoj kab uas hla tsawg dua 200nm thiab ntev tshaj 5um. Cov hmoov ceramic uas tsim los ntawm txoj kev no tau txhim kho cov khoom zoo xws li tawg toughness, thermal shock resistance, thiab dabtsi yog khoov zog.
(2) Hluav taws xob porcelain
Hauv kev tshawb fawb txog kev txhim kho thiab kev siv cov khoom siv kaolin nyob rau thaj tsam sab hnub poob ntawm Heilongjiang Province, high-voltage thiab low-voltage hluav taws xob ceramics uas ua tau raws li Tuam Tshoj lub teb chaws cov qauv kev lag luam yog tsim los ntawm cov khoom siv ceramic los ntawm cov chaw tsim khoom, ntxiv los ntawm cov khoom siv raw. los ntawm peb lub xeev thiab lwm cheeb tsam.
(3) Enamel
Raws li cov khoom siv sib xyaw, lub hauv paus ntsiab lus tseem ceeb ntawm cov enamel yog yaj thiab ua kom cov ntaub ntawv tsis muaj zog hauv cov khoom siv rau hauv lub matrix hlau moj khaum, yog li khov kho txuas lawv. Kaolin yog siv rau enamel thiab tau ntim nrog cov ntaub ntawv inorganic glassy. Enamel cov khoom muaj kev nyab xeeb, tsis muaj tshuaj lom, thiab yooj yim los ntxuav. Lawv tau dav siv los ua khoom noj khoom haus thiab ntxhua khaub ncaws hauv lub neej txhua hnub. Muaj ntau ntau hom enamel, thiab raws li lawv cov kev siv sib txawv, lawv cov kev lag luam feem ntau suav nrog kev kos duab, kev siv txhua hnub, kev nyiam huv, architecture, kev lag luam, tshwj xeeb thiab lwm yam sib txawv enamel pawg.
Cov ntaub ntawv polymer
(1) Insulating cov khoom siv hluav taws xob
Coal raws li calcined kaolin, tom qab hloov kho, tuaj yeem txhim kho nws cov rwb thaiv tsev zoo thiab tsis muaj teeb meem rau ib puag ncig. Yog li ntawd, nws tau kawm dav dav los ua ib qho kev hloov pauv rau cov nplaim hluav taws kub nyhiab uas yav dhau los ua rau muaj kev puas tsuaj rau ib puag ncig. Niaj hnub no, hloov cov thee raws li calcined kaolin nplaim retardants tau siv rau phenolic resin hom nplaim hluav taws kub retardant tooj liab-clad laminates thiab lawv cov laminated rwb thaiv tsev boards.
(2) Cov khoom siv raw rau cov khoom fiberglass
Cov iav fiber ntau, raws li ib yam ntawm cov khoom siv tsis yog xim hlau, yog cov tswv cuab tseem ceeb ntawm cov khoom siv niaj hnub no nrog kev ua tau zoo heev. Tshawb nrhiav daim ntawv thov ntawm ultrafine kaolin hauv kev tsim cov alkali dawb tank kiln iav fiber ntau thiab chlorinated butyl roj hmab raws li cov tshuaj muaj pes tsawg leeg thiab cov yam ntxwv ntawm kaolin. Cov txiaj ntsig kev tshawb fawb pom tau tias hom thee series kaolin no muaj kev loj hlob dav dav hauv cov iav fiber ntau thiab roj hmab.
Yog xav paub ntxiv txog peb cov khoom Fangyuan, thov nyem qhov txuas no:https://www.fine-mill.com.
