Khoom ntawm Aluminium Hmoov
Aluminium yog silvery - grey hlau. Aluminium hmoov yog cov soluble thiab haum rau siv raws li ib tug pigment. Aluminium hmoov muab tshuaj txhuam yog sib xyaw ntawm cov xim txhuas hmoov thiab cov kuab tshuaj. Nws cov kev siv thiab cov khoom muaj ntau yam zoo ib yam li txhuas hmoov. Nrog rau qhov loj ntawm 26.98, txheeb ze ntom ntom ntawm 2.55, thiab purity ntawm 99.5%, txhuas muaj qhov melting point ntawm 685 degree, boiling point ntawm 2065 degree, thiab latent tshav kub ntawm fusion ntawm 323 kJ / g. Aluminium tau txo cov khoom thiab oxidizes yooj yim heev, tso cua sov thaum oxidation. oxidation ceev tso tawm 15.5 kJ / g ntawm tshav kub ib gram. Aluminium yog cov khoom siv hlau thiab yooj yim rau kev ua haujlwm. Cov oxide zaj duab xis nyob rau saum npoo ntawm cov hlau txhuas yog pob tshab thiab muaj cov tshuaj lom neeg zoo.
Aluminium hmoov rau cov xim yog hais txog cov hmoov nrog flaky particles thiab kev kho deg txheej. Nws yog ib qho yooj yim mus use, li no nws loj ntau lawm ntim thiab siv.
Piv rau lwm cov pigments, txhuas hmoov rau pigments muaj cov yam ntxwv tshwj xeeb, tshwm sim hauv cov hauv qab no:
1. Flake-zoo li opacity
Cov hmoov txhuas hmoov yog flaky, nrog ib txoj kab uas hla mus rau thickness ntawm kwv yees li (40: 1) -(100: 1). Tom qab dispersed mus rau ib tug cab kuj, aluminium hmoov tseem nyob rau tib lub sij hawm mus rau lub substrate. Ntau cov hmoov txhuas hmoov sib txuas sib txuas, nrog cov khoom sib txawv ntawm qhov ntau thiab tsawg sib sau ua ke los tsim cov yeeb yaj kiab hlau txuas ntxiv. Zaj duab xis no opacifies lub substrate thaum xav txog lub teeb los ntawm sab nraum lub txheej, ua kom pom qhov txawv opacity ntawm txhuas hmoov.
2. Tiv thaiv cov khoom ntawm txhuas hmoov
Aluminium hmoov dispersed nyob rau hauv lub carrier undergoes ib tug floating motion, tsis tu ncua tswj nws parallelism mus rau lub substrate yog coated, tsim ib tug nruam txhuas hmoov txheej. Tsis tas li ntawd, txheej txheej no muaj nyob rau hauv ntau qhov sib npaug ntawm cov txheej txheem hauv cov khoom nqa khoom.
3. "Ob-Xim nyhuv" ntawm Aluminium Hmoov
Vim nws cov xim hlau zoo nkauj thiab sib luag-rau--coated zog, aluminium hmoov nthuav tawm "ob-xim nyhuv" hauv nws cov gloss thiab xim tob hauv cov cab kuj uas muaj cov xim pob tshab. Cov nyhuv no hloov nrog qhov xwm txheej lub teeb lub kaum sab xis thiab saib lub kaum sab xis.
4. Floating Properties ntawm Aluminium Hmoov
Ib hom pigment txhuas hmoov thiab txhuas hmoov muab tshuaj txhuam yog hom ntab, uas yog nws cov flake -zoo li cov qauv ntab rau ntawm txheej txheej.
