Ntau yam khoom siv niaj hnub xws li lub ntsej muag kho mob, cov ntaub so ntswg, lub tsho, thiab lwm yam, muaj cov qauv ntsuas kev lag luam nruj nruj kom tswj tau qhov zoo ntawm ntau cov ntsiab lus me me. Cov qauv no ua kom ntseeg tau tias cov neeg siv khoom tuaj yeem tau txais cov khoom muag nrog kev txaus siab, thiab cov neeg tsim khoom yuav tsum txhim kho lawv cov txheej txheem thiab kev ua tau zoo tsis tu ncua. Tus qauv xeem yuav raug hloov kho raws sijhawm los ntawm ntau txhiab daim ntawv tshaj tawm thiab cov neeg siv khoom 'tom qab kev muag khoom tawm tswv yim.
Hais txog PE tarp los yog Vinyl tarp test, muaj ntau yam kev ntsuam xyuas xws li colourfastness, abrasion-resistant, tear-resistant, thiab lwm yam. Nyob rau hauv no ncej, kuv yuav qhia qhov tseem ceeb ntawm UV-resistant txheej txheem.
Dab tsi yog cov ntsiab lus tseem ceeb ntawm Polyethylene lossis Vinyl UV Resistant test?
● Qib Irradiance
Qhov ntau ntawm UV hluav taws xob yog qhov dav, los ntawm <0.1nm txog> 1mm. Lub hnub ci ultra-kev ua phem yog nyob nruab nrab ntawm 300-400nm, qhov ntev wavelength UV cuam tshuam tsis tshua muaj kev phom sij rau peb cov tawv nqaij, tab sis cuam tshuam rau ntau cov polymers 'degradation ntawm ntau cov polymers tiav cov khoom xws li polyethylene lossis Vinyl.
PE tarp tuaj yeem siv rau 1-2 xyoos. Tab sis qhov tseeb, ib puag ncig uas muaj ntau yam kev laus muaj peev xwm txo tau txoj sia ntawm tarps. Ua ntej kev kuaj UV, tus kws tshaj lij yuav teeb tsa ntau qhov chaw ib puag ncig xws li nag, qhov kub thiab txias, av noo, tshav ntuj raug, thiab lwm yam tsis zoo los simulate cov txheej txheem kev laus hauv lub tshuab. Cov qib irradiance yuav yog 0.8-1.0 W / ㎡ / nm, zoo ib yam li lub hnub ci tiag tiag.
● Lamb Hom & Thov
Fluorescent ultraviolet teeb tuaj yeem siv rau ASTM G154 kuaj. Vim muaj ntau yam ntawm cov khoom tsis yog hlau, cov specifications ntawm lub teeb yuav txawv. Pawg saib xyuas thib 3 yuav kos cov ntsiab lus ntawm lub teeb hauv daim ntawv tshaj tawm.
Lub chaw soj nstuam qhov kub thiab txias nyob hauv tsev yuav cuam tshuam qhov tseeb ntawm cov hluav taws xob tau txais los ntawm cov qauv ntaub. Yog li qhov kawg hluav taws xob parameter yuav xa mus rau qhov tshwj xeeb ntes.
● Yuav Ua Li Cas Ua Kev Ntsuas Kev Tiv Thaiv UV
Thaum xub thawj, cov qauv ntaub yuav raug txiav los ntawm 75x150mm lossis 75x300mm thiab tom qab ntawd kho nrog lub voj voog aluminium. Muab cov qauv tso rau hauv QUV kuaj chamber thiab teeb tsa tag nrho cov kev ntsuas.
0, 100, 300, 500, 750, 1000, 1500, 2000 teev tuaj yeem txhawb nqa. Lub QUV xeem chamber muaj qhov ua kom nrawm nrawm nrog 4x 6x 8x… Yog tias qhov ntsuas yog 8x, nws tsuas yog xav tau 125 teev tiag tiag los txhawb qhov raug ntawm lub ntuj 1000 teev.
Hais txog PE lossis Vinyl tarp, nws yog txaus rau cov qauv kom tau txais 300-500 lub sij hawm stimuled 'exposure. Tom qab ntawd, tus kws tshaj lij hauv chav kuaj yuav pib qhov kev sim hauv qab no, xws li xim ceev, tsim kua muag, dej tsis kam. Piv nrog rau cov qauv qub, daim ntawv tshaj tawm zaum kawg yuav raug sau tseg.
Post lub sij hawm: Feb-23-2022