Cov Hmoov Kaolin Hloov Kho Rau Kev Lag Luam Yas Txhim Kho Lub Zog Thiab Kev Tiv Thaiv Kub
Kev Piav Qhia Luv:
Kev lag luam yas hloov zuj zus tas mus li xav tau cov khoom siv mineral fillers uas tuaj yeem ua kom cov khoom ua haujlwm zoo dua, txo cov nqi tsim khoom, thiab nthuav dav cov ciam teb ntawm daim ntawv thov. Ntawm cov no, cov hmoov kaolin hloov kho saum npoo av tau tshwm sim ua ib qho khoom siv tseem ceeb, hloov pauv kev tsim cov khoom yas sib txawv suav nrog polypropylene (PP) cov khoom txhaj tshuaj pwm, polyethylene (PE) zaj duab xis, thiab polyvinyl chloride (PVC) profiles. Tsis zoo li nws cov khoom siv tsis hloov kho, uas feem ntau tsis sib xws nrog cov yas resins, cov hmoov kaolin hloov kho saum npoo av siv cov neeg sawv cev silane lossis titanate los tsim cov tshuaj sib txuas nrog cov saw polymer. Qhov kev sib cuam tshuam molecular-level no ua rau lub zog kho tshuab, kev ruaj khov thermal, thiab kev sib npaug ntawm cov yas matrices, ua rau nws yog cov khoom siv tseem ceeb hauv kev tsim cov yas niaj hnub.
Kev Txhim Kho Lub Zog Mechanical
Kev ua kom lub zog ntawm cov khoom yas ruaj khov yog ib qho uas tsis tuaj yeem sib tham tau rau cov khoom yas, tshwj xeeb tshaj yog cov uas siv rau hauv cov lag luam uas xav tau kev pab xws li kev tsim kho tsheb, kev tsim kho vaj tse, thiab cov khoom siv niaj hnub. Hmoov kaolin uas hloov kho qhov chaw, feem ntau yog qib ntawm 1000 thiab 2000 mesh, ua haujlwm ua tus neeg sawv cev txhawb nqa los ntawm kev tsim kom muaj lub network sib txuas ntawm cov pob zeb-polymer interfacial bonds. Lub network no pab txhawb kev faib tawm ntawm kev ntxhov siab ntawm cov khoom siv thoob plaws hauv cov yas matrix, tiv thaiv kev sib sau ua ke ntawm cov leeg uas yuav ua rau tsis ua haujlwm.
Hauv kev lag luam tsheb, qhov twg qhov hnyav txo thiab kev ruaj khov ntawm cov qauv yog qhov tseem ceeb, kev ntxiv 10% -20% hmoov kaolin hloov kho qhov chaw (los ntawm qhov hnyav) rau PP cov khoom sab hauv tsheb - xws li lub dashboard casings thiab qhov rooj trims - tau ua pov thawj tias muaj kev txhim kho zoo kawg nkaus. Kev sim ua tib zoo los ntawm tus thawj coj German automotive qhov chaw muab khoom qhia tau tias muaj 25% -35% nce hauv lub zog tensile, tsa cov nqi ntawm 30 MPa mus rau 37-40 MPa. Tib lub sijhawm, qhov flexural modulus tau pom 40% -50% kev txhim kho, nce ntawm 1500 MPa mus rau 2100-2250 MPa. Cov txiaj ntsig no ua rau cov chaw tsim khoom txo cov khoom siv resin txog li 15%, ua tiav kev txuag nyiaj ntau yam tsis muaj kev cuam tshuam rau qhov zoo ntawm cov khoom.
Rau cov yeeb yaj kiab PE ua liaj ua teb, qhov kev hloov kho ntawm cov hmoov kaolin ua kom muaj cov khoom sib kis zoo dua, tiv thaiv cov khoom me me uas tuaj yeem tsim cov ntsiab lus tsis muaj zog. Cov yeeb yaj kiab uas muaj 8% -12% ntawm cov hmoov hloov kho no tau pom tias muaj kev tiv thaiv kev cuam tshuam 30%, nce ntxiv ntawm 8 kJ / m² mus rau 10.4 kJ / m². Qhov kev ruaj khov ntxiv no tso cai rau cov yeeb yaj kiab kom tiv taus cua ceev txog li 18 m / s yam tsis muaj kev rhuav tshem, muab kev tiv thaiv zoo rau ntau yam kev siv hauv kev lag luam dhau ntawm kev ua liaj ua teb.
Kev Txhim Kho Kev Ua Haujlwm Thermal
Kev tiv taus cua sov yog lwm qhov zoo tseem ceeb ntawm cov hmoov kaolin hloov kho saum npoo av hauv kev siv yas. Ntau yam khoom yas niaj hnub no, suav nrog cov thawv hluav taws xob, cov khoom hauv qab tsheb, thiab cov ntaub ntawv tsim kho, yuav tsum tiv taus qhov kub siab yam tsis muaj kev puas tsuaj. Cov ntsiab lus alumina siab (xws li 38% -42%) hauv cov hmoov kaolin, ua ke nrog cov txheej txheem hloov kho saum npoo av zoo, txhim kho qhov kub hloov pauv cua sov (HDT) ntawm cov khoom yas.
Ib lub tuam txhab tsim khoom siv PVC profile Italian tau siv cov hmoov kaolin uas tau hloov kho saum npoo av hauv kev tsim cov thav duab qhov rai, ua tiav qhov nce ntxiv ntawm HDT los ntawm 70 ° C mus rau 85 ° C. Qhov kev hloov kho qhov kub thiab txias no ua kom ntseeg tau tias cov thav duab PVC tuaj yeem tiv taus lub hnub ci ncaj qha ntev hauv huab cua Mediterranean yam tsis muaj kev sib txhuam lossis kev hloov pauv. Ib yam li ntawd, rau cov thawv hluav taws xob PP uas muaj cov khoom siv hluav taws xob tsim cua sov, kev siv cov hmoov kaolin ua rau HDT nce ntxiv los ntawm 110 ° C mus rau 130 ° C, ua tau raws li cov kev cai kub. Tsis tas li ntawd, cov hmoov no ua rau cov teeb meem thermal shrinkage zoo; PP cov khoom txhaj tshuaj uas muaj 15% hmoov kaolin tau pom tias shrinkage ntawm 1.2%, piv rau 2.5% rau PP tsis muaj zog, ua kom ntseeg tau tias qhov tseeb ntawm qhov ntev thaum lub sijhawm tsim khoom.
Cov Txheej Txheem Tsim Khoom thiab Cov Lus Qhia Txog Kev Siv Tshuab
Kev tsim cov hmoov kaolin uas tau hloov kho rau saum npoo ntawm cov yas muaj ob theem uas tau tsim los ua tib zoo: kev ua kom cov hlau zoo thiab kev kho saum npoo. Cov hlau kaolin nyoos raug siv los ua kom zoo dua los ntawm kev sib cais hlau nplaum thiab cov txheej txheem ua npuas dej kom tshem tawm cov hlau thiab titanium impurities, uas tuaj yeem ua rau cov hmoov tsis zoo. Tom qab ntawd, cov hlau raug zom kom tau qhov loj me uas xav tau siv cov txheej txheem sib tsoo qhuav nrog cov tshuab cais cua, tsim cov qib txij li 1000 txog 2000 mesh.
Cov theem hloov kho qhov chaw siv cov tshuab sib tov ceev ceev uas ua haujlwm ntawm 1500-2000 rpm los sib xyaw cov khoom kaolin nrog cov neeg sawv cev sib txuas. Cov neeg sawv cev sib txuas Silane, xws li KH-550, yog qhov zoo dua rau PP thiab PE daim ntawv thov vim lawv muaj zog rau polyolefin polymers, thaum cov neeg sawv cev sib txuas titanate xws li TMC-101 yog qhov tsim nyog dua rau PVC compounds. Cov tshuaj sib txuas raug tswj hwm kom zoo ntawm 0.5% -1.5% ntawm qhov hnyav ntawm cov hmoov kaolin kom ntseeg tau tias cov khoom npog tag nrho yam tsis muaj cov khoom ntau dhau uas tuaj yeem cuam tshuam kev ua cov yas. Tom qab hloov kho, cov hmoov raug txias rau qhov kub thiab txias thiab sieve kom tshem tawm cov agglomerates, ua rau cov khoom ntws dawb, homogeneous npaj rau kev koom ua ke rau hauv cov yas formulations.
Cov ntsuas tseem ceeb ntawm kev siv tshuab tswj hwm qhov zoo ntawm cov hmoov kaolin uas tau hloov kho rau ntawm qhov chaw rau cov yas. Kev faib tawm ntawm cov khoom me me, ntsuas los ntawm D50 tus nqi ntawm 5-10 μm (1000 mesh) lossis 2-5 μm (2000 mesh), cuam tshuam ncaj qha rau kev sib kis thiab kev ua haujlwm ntawm cov khoom siv. Kev dawb, qhia ua tus nqi L * ntawm ≥90%, ua kom muaj kev sib haum xeeb zoo nkauj hauv cov ntawv thov uas xim yog qhov tseem ceeb. Kev tswj hwm cov dej noo noo (≤0.3%) tiv thaiv cov teeb meem xws li hydrolysis thaum lub sijhawm ua cov yas, thaum tus nqi them rau tus neeg sawv cev ntawm ≥95% lav qhov zoo tshaj plaws ntawm kev sib txuas interfacial. Cov nqi nqus roj ntawm 20-25 mL / 100g qhia txog cov hmoov cov yam ntxwv ntub dej, cuam tshuam rau cov khoom sib xyaw viscosity thiab kev ua haujlwm. Cov kev ntsuas no raug sim nruj siv cov cuab yeej tshuaj ntsuam xyuas siab heev, suav nrog cov khoom me me laser, Fourier-transform infrared spectroscopy (FTIR), thiab thermogravimetric analysis (TGA).
Kev Ua Tau Zoo ntawm Cov Khoom Siv thiab Kev Txhawb Nqa Kev Txawj Ntse
Cov khoom siv rau cov hmoov kaolin uas tau hloov kho saum npoo av tau raug kho kom zoo kom haum rau cov voj voog tsim khoom sai ntawm kev lag luam yas. Cov kev xaiv ntim khoom suav nrog 25kg hnab ntawv ntau txheej uas muaj cov ntaub thaiv tiv thaiv hluav taws xob los tiv thaiv cov hmoov av thiab xyuas kom meej tias cov khoom muaj kev ncaj ncees, nrog rau 1000kg hnab loj uas muaj cov tes tsho forklift rau kev tuav thiab khaws cia zoo. Lub sijhawm xa khoom tau yooj yim, nrog cov neeg siv khoom hauv cheeb tsam (piv txwv li, kev xa khoom los ntawm Tuam Tshoj mus rau Sab Qab Teb Asia) tau txais cov xaj hauv 7-14 hnub, thaum kev xa khoom thoob ntiaj teb (xws li cov mus rau Tebchaws Europe) tau ua tiav hauv 21-30 hnub.
Kev piav qhia txog khoom
Peb muaj calcined kaolin, ntxuav kaolin, metakaolin.
Calcined kaolin, tseem hu ua porcelain clay, Nws muaj qhov dawb siab, zoo fineness, zoo plasticity, thiab muaj zog corrosion
tsis kam thiab ruaj khov zoo. Nws yog ib qho khoom siv zoo heev rau kev ua cov khoom siv ceramics thiab roj hmab.
Calcined kaolin, tseem hu ua porcelain clay, Nws muaj qhov dawb siab, zoo fineness, zoo plasticity, thiab muaj zog corrosion
tsis kam thiab ruaj khov zoo. Nws yog ib qho khoom siv zoo heev rau kev ua cov khoom siv ceramics thiab roj hmab.
Cov Duab Qhia Txog
Peb qhov zoo dua:
Peb yog lub Hoobkas ncaj qha, peb tuaj yeem xa khoom sai, thiab peb tuaj yeem muab cov khoom siv tourmaline loj npaum li cas nrog kev ua haujlwm zoo.
Peb yog lub Hoobkas ncaj qha, peb tuaj yeem xa khoom sai, thiab peb tuaj yeem muab cov khoom siv tourmaline loj npaum li cas nrog kev ua haujlwm zoo.
Tsis tas li ntawd, ua ib lub chaw tsim khoom, peb tuaj yeem ua tau raws li koj cov kev xav tau, xws li pob tshwj xeeb, koj lub logo, cov khoom xyaw ntuj, cov xim mica tshiab, MSDS & TDS muaj thiab lwm yam.
| Pawg | Qib Kev Lag Luam | Hlau Qib | Qib Ceramic | Qib fluorescence | Kev kho qhov muag Qib | Siab Kev dawb huv | |
| Cov ntsiab lus tsis tsawg dua (%) | 93.0 | 96.0 | 98.0 | 99.0 | 99.8 | 99.99 | |
| Cov ntsiab lus tsis huv tsis pub ntau tshaj (%) | Na | 0.05 | 0.01 | 0.002 | |||
| K | 0.05 | 0.01 | 0.002 | ||||
| Ca | |||||||
| Mg | 0.5 | 0.1 | 0.05 | 0.05 | 0.02 | ||
| Si | 1% | 0.5 | 0.1 | 0.05 | 0.01 | 0.002 | |
| SO4 | 0.5 | 0.1 | 0.05 | 0.03 | 0.01 | 0.005 | |
| Fe | 0.1 | 0.05 | 0.05 | 0.001 | 0.0005 | 0.0001 | |
| Cl | 0.1 | 0.1 | 0.05 | 0.05 | 0.01 | 0.001 | |
| Al | 0.1 | 0.1 | 0.05 | 0.02 | 0.002 | 0.001 | |
| Cu | 0.05 | 0.02 | 0.002 | 0.001 | 0.0005 | 0.0002 | |
| Cov hlau hnyav (Pb) | 0.05 | 0.02 | 0.002 | 0.001 | 0.0005 | 0.0002 | |
Kev Siv Cov Xim Hlau Oxide
1. Hauv kev lag luam khoom siv hauv tsev, nws feem ntau yog siv rau cov xim cement, cov vuas pem teb xim cement, cov vuas cement xim, cov vuas glazed cuav, cov vuas pem teb pob zeb, cov mortar xim, cov xim asphalt xim, terrazzo, cov vuas mosaic, cov marble dag thiab cov xim pleev xim rau phab ntsa.
2. Nws siv tau rau xim thiab tiv thaiv cov tshuaj pleev xim ntawm ntau yam xim, suav nrog cov xim pleev xim sab hauv thiab sab nraud ntawm phab ntsa, cov xim pleev xim hmoov, thiab lwm yam. Nws kuj siv tau rau ntau yam xim pleev xim thiab cov xim pleev xim sab saud xws li epoxy, alkyd, amino, thiab lwm yam hauv cov xim pleev roj, nrog rau cov xim pleev xim rau cov khoom ua si, cov xim pleev kom zoo nkauj, cov xim pleev rooj tog, cov xim pleev electrophoretic thiab cov xim pleev xim enamel. Cov xim pleev xim liab hlau muaj cov haujlwm tiv thaiv xeb, tuaj yeem hloov cov xim liab liab kim heev, txuag cov hlau tsis yog hlau.
Cov chaw tsim khoom muab cov hlau oxide liab, hlau oxide ntsuab, hlau oxide xiav, hlau oxide daj, hlau oxide ntshav, hlau oxide xim av, hlau oxide dub thiab lwm yam. Cov xim tiav lawm, qhov ntau thiab luv nqi zoo. Txhawb cov khoom sib xyaw. Txais tos hu rau kev sab laj.
1. Hauv kev lag luam khoom siv hauv tsev, nws feem ntau yog siv rau cov xim cement, cov vuas pem teb xim cement, cov vuas cement xim, cov vuas glazed cuav, cov vuas pem teb pob zeb, cov mortar xim, cov xim asphalt xim, terrazzo, cov vuas mosaic, cov marble dag thiab cov xim pleev xim rau phab ntsa.
2. Nws siv tau rau xim thiab tiv thaiv cov tshuaj pleev xim ntawm ntau yam xim, suav nrog cov xim pleev xim sab hauv thiab sab nraud ntawm phab ntsa, cov xim pleev xim hmoov, thiab lwm yam. Nws kuj siv tau rau ntau yam xim pleev xim thiab cov xim pleev xim sab saud xws li epoxy, alkyd, amino, thiab lwm yam hauv cov xim pleev roj, nrog rau cov xim pleev xim rau cov khoom ua si, cov xim pleev kom zoo nkauj, cov xim pleev rooj tog, cov xim pleev electrophoretic thiab cov xim pleev xim enamel. Cov xim pleev xim liab hlau muaj cov haujlwm tiv thaiv xeb, tuaj yeem hloov cov xim liab liab kim heev, txuag cov hlau tsis yog hlau.
Cov chaw tsim khoom muab cov hlau oxide liab, hlau oxide ntsuab, hlau oxide xiav, hlau oxide daj, hlau oxide ntshav, hlau oxide xim av, hlau oxide dub thiab lwm yam. Cov xim tiav lawm, qhov ntau thiab luv nqi zoo. Txhawb cov khoom sib xyaw. Txais tos hu rau kev sab laj.
Tsis tas li ntawd xwb, graphite kuj yog ib yam khoom siv txhuam thiab tiv thaiv xeb rau iav thiab ntawv hauv kev lag luam sib zog, thiab yog ib yam khoom siv tseem ceeb rau kev ua cov cwj mem, kua mem, xim dub, kua mem, pob zeb diamond cuav thiab pob zeb diamond. Nws yog ib yam khoom siv txuag hluav taws xob thiab tiv thaiv ib puag ncig zoo, uas tau siv ua roj teeb tsheb hauv Tebchaws Meskas. Nrog rau kev txhim kho ntawm kev tshawb fawb niaj hnub thiab kev lag luam, daim ntawv thov ntawm graphite tseem tab tom nthuav dav. Nws tau dhau los ua ib yam khoom siv tseem ceeb ntawm cov ntaub ntawv sib xyaw tshiab hauv kev lag luam high-tech thiab ua lub luag haujlwm tseem ceeb hauv kev lag luam hauv tebchaws.
Sau koj cov lus ntawm no thiab xa tuaj rau peb
