Yuav Ua Li Cas Ntxiv Cov Khaub Ncaws Tsis Zoo ntawm Automotive Clear Coats
Ib txoj hauv kev tshiab txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau nws
Ib pab neeg ntawm Iranian cov kws tshawb fawb tsis ntev los no tau los nrog txoj hauv kev tshiab txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau nws
Nyob rau hauv lub xyoo caum tsis ntev los no, muaj ntau ntau ntawm kev siv zog los txhim kho qhov tsis kam ntawm automotive clear coats tiv thaiv abrasive thiab erosive hnav. Yog li ntawd, ib tug xov tooj ntawm cov txheej txheem tau npaj rau lub hom phiaj no. Ib qho piv txwv tsis ntev los no ntawm yav tas los suav nrog kev siv cov khoom siv silicon-raws li cov khoom siv los ua kom zoo dua los tiv thaiv khawb rau qhov chaw siv.
Cov kws tshawb fawb tau tswj hwm kev sib koom ua ke 40 nm hloov kho silica nanoparticles rau hauv acrylic / melamine clear-coat kom tau txais qhov zoo tshaj plaws ntawm kev khawb tsis kam. Tsis tas li ntawd thiab ua ib feem ntawm lawv txoj kev tshawb fawb, lawv tau tsim ib txoj hauv kev tshiab los tshawb xyuas qhov kos morphology thiab cov yam ntxwv los ntawm gonio-spectrophotometry.
Raws li cov txiaj ntsig ntawm qhov kev sim no, kev siv cov nano-sized particles cia qhov kev ua tiav ntawm qib siab ntawm kev txhim kho hauv cov khoom piv rau cov pa roj silicon-based additives. Hauv lwm lo lus, nanoparticles yuav cuam tshuam cov txheej txheem kho ntawm cov txheej txheem thiab tsim cov khoom / txheej txheej lub cev uas tiv thaiv khawb.
Raws li kev tshawb fawb, qhov sib ntxiv ntawm cov nanoparticles tsis tsuas yog nce hardness, elasticity modulus, thiab toughness ntawm txheej, tab sis kuj txo nws cov network ceev thiab hloov cov khawb morphology los ntawm kev puas tsuaj rau hom yas (kev kho tus kheej). Yog li ntawd, cov kev txhim kho no ua ke ua rau muaj kev ruaj ntseg hauv kev ua haujlwm ntawm lub tsheb ntshiab-coats thiab pab tswj lawv qhov pom kev zoo.