1.What yog qhov laj thawj tseem ceeb rau kev fading vim qhov kub thiab txias?
Thermal degradation ntawm Resin: organic Resins (polyester, hloov kho molecular, thiab lwm yam) ua rau cov hmoov av tsis tu ncua, ua rau muaj cov hmoov av los ua patdery, ci, thiab nkig. Qhov kev cuam tshuam no yuav ua kom muaj kev cuam tshuam kom ua kom muaj kev cuam tshuam thiab ua rau cov pigments, uas yuav tshwm sim raws li fading.
Tsis txaus thermal stability ntawm pigments: qee cov organic pigments yog cov xim tsis ruaj khov ntawm cov xim kub thiab tsis muaj txiaj ntsig (piv txwv li cov xim liab thiab txiv kab ntxwv dub). Kev kub siab tuaj yeem nrawm nrawm qhov kev hloov no.
Thermal oxidation: nyob rau hauv cov kev mob siab, oxygen yog cov uas yuav muaj kev cuam tshuam nrog cov cob thiab xim nyob rau hauv txheej (thermal oxidation), ua rau muaj kev laus thiab tshem tawm ntawm cov khoom siv.
Synergistic nyhuv nrog UV Rays (Feem Ntau): Kev Kub Siab Tshaj Tawm Ua kom nrawm nrawm ntawm UV Rays! Qhov no yog qhov laj thawj tseem ceeb rau kev fading nyob rau hauv lub ru tsev nyob rau sab nraum zoov ib puag ncig (xws li ru tsev nyob rau lub caij ntuj sov): kev kub siab dua los ntawm UV rays. Kev ntsuas kub siab txhawb kev noj thiab tsis ua haujlwm UV nqus / stabilizers. Lub tsho dawb tsaus nti nqus ntau dua, thiab qhov kub siab dua (ntau dua (ntau dua li cov laus huab cua)
2.Him puas ua qhov ua tiav ua tiav ua tiav ntawm qhov kub?
PVDF (Fluorocarbon txheej): Kev Kub Siab Tshaj Tawm: Fluorocarbon Thuj Zog Zog thiab Kev Siv Ntev Ua kom muaj zog tau mus txog 120 degree.
Kev Ua Tau Zoo: Nyob rau hauv ib tug ntshiab siab kub (tsis muaj lub zog UV) ib puag ncig, PVDF nws tus kheej yuav tsis muaj kev ploj mus vim yog cov cua sov. Nyob rau hauv "kub siab + muaj zog UV" sab nraum zoov ib puag ncig tuaj yeem tiv thaiv fading thiab charking mus rau qhov loj tshaj plaws yog fav zoo dua lwm cov koob.
SMP (silicon tau hloov polyester): Tsim kom zoo dua yog txhim kho silicone, qhov kub ua tau zoo dua (kub tsis kam ncav cuag.
Kev Ua Tau Zoo: Hauv cov khoom siv kub ntshiab (xws li chav ua noj chav ua noj, ntim teeb liab), cov cua sov ua kom tsis heev yog qhov tsis zoo tshaj qhov txheem polyester. Txawm li cas los xij, nyob rau sab nraum zoov "kub siab + muaj zog uv", nws cov huab cua tsis zoo yog siab dua HDP / PVDF.
HDP (siab ruaj khov polyester): UV tiv thaiv tau zoo dua los ntawm kev ua kom zoo dua los ntawm kev ua kom zoo dua qub (UV nqus ruaj khov, lub teeb ci ruaj ruaj).
Kev ua tau zoo: tshav kub tiv taus yog qhov zoo dua li cov qauv txheem polyester tab sis qis dua SMP / PVDF. Nyob rau hauv high-kub-sab nraum zoov ib puag ncig, nws zoo UV tsis kam yog tus yuam sij rau kev tiv thaiv fading. Nws cov kev ua tau zoo tshaj plaws yog qhov zoo dua li SMP thiab ze rau PVDF (tshwj xeeb tshaj yog hais txog kev tawm tsam thiab xim khaws cia).
PE (Txuj Ci Polyester): Lub zog cua sov tsis kam: Thaum raug ib puag ncig sab saud 80℃rau lub sijhawm ntev, kev pheej hmoo ntawm kev cuam tshuam thermal nce siab.
Kev Ua Tau Zoo: Hauv qhov chaw kub siab (tshwj xeeb yog thaum superimiolet raysing thiab kev tsis txaus ntseeg, thiab cov xim yog yooj yim, fading thiab poob gloss hornest. Tsaus thiab ci xim yog tshwj xeeb heev.
3.Qhov dab tsi yog qhov tseem ceeb rau kev fading?
Hom Popcoat Resin, Xim Zoo thiab Hom, Qib Kub thiab Ntev, seb UV puas yog superimposes, substrate kub
4.How cov kev cuam tshuam no cuam tshuam rau qhov kub siab li cas?
Topcoat Resin Hom: PVDF> SMP ≈ HDP> PE (PVDF muaj cov huab cua zoo tshaj plaws tab sis tsis zoo li cov huab cua zoo tshaj plaws; PE yog qhov phem tshaj).
Xim zoo thiab hom: inorganic pigments nrog cov cua sov ua kom zoo (xws li cov xov xwm titanium dioxide thiab hlau oxide series) yog farnival rau cov organic pigments. Tsaus ntuj / ci Organic pigments muaj feem ntau yuav hloov xim thaum kub.
Temperature level and duration: The higher the temperature (especially >80 degree) thiab siv sijhawm ntev dua, muaj kev pheej hmoo ntxiv nce siab.
Txawm hais tias yuav superimpose rays: kev kub siab + ultraviolet rays yog qhov kev txiav txim siab feem ntau ua ke rau sab nraum zoov fading, thiab synergistic rhuav tshem tau muaj zog.
Txheej thickness: ib txheej soscoat thicker muab lub cev muaj teeb meem zoo dua kom ncua kev nkag mus rau ntawm cov cua sov thiab ultraviolet rays.
Substrate kub: tsaus txheej thiab tsis muaj cua tsis zoo yuav ua rau muaj kev kub ntxhov tiag tiag ntawm cov huab cua (30℃+ siab dua huab cua txias), exacerbating deterioration.
5.Txoj kev tiv thaiv lossis txo qis dua qhov kub?
Xaiv txoj cai txheej: PVDF yog thawj qhov kev xaiv: siv nyob rau hauv qhov kub lossis muaj zog UV ib puag ncig (xws li hlau vov tsev, thaj chaw thaj chaw / thaj chaw thaj chaw, muaj nroj tsuag).
HDP yog qhov kev xaiv thib ob: kev xaiv zoo nqi nrog cov huab cua zoo, tsim nyog rau feem ntau qhov kub nyob sab nraum zoov.
Siv SMP nrog Ceev Faj: Tsuas yog siv nws nyob rau hauv cov xwm txheej uas kub siab uas tsis muaj zog (xws li cov khoom siv kub uas tsis raug rau lub hnub ncaj qha).
Zam PE: tsis pom zoo rau kev kub txuas ntxiv lossis kub sab nraum zoov ib puag ncig.
Xaiv cov xim tsis ruaj khov: Xav tau cov neeg xa khoom siv cov huab cua muaj zog thiab kub tiv thaiv cov xim xws li xim liab, daj, thiab txiv kab ntxwv). Lub teeb xim (dawb, lub teeb txho) feem ntau yog ruaj khov.
Ua tib zoo saib xyuas qhov ntsuas kub kub: Ntxiv rau kev ua kom sov thiab cua sov dissipation tsim kom tsis txhob muaj kev kub ntxhov hauv cheeb tsam thiab thaj chaw ua pa tsis zoo). Txiav txim siab siv cov xim zoo nkauj lossis muaj tsho tiv no loj los txo cov kev nqus kub (xws li txias lub ru tsev pleev xim).