cov khoom

Cov lus txhais ua lus Askiv

tshuaj antioxidant

cov yam ntxwv tshuaj lom neeg

Ultraviolet absorber yog ib hom stabilizer teeb, tuaj yeem nqus tau lub hnub ci thiab lub teeb fluorescent hauv qhov ultraviolet, tab sis nws tus kheej tsis hloov pauv.
Vim tias lub hnub lub teeb muaj ntau lub teeb ultraviolet uas ua rau cov khoom muaj xim tsis zoo, nws qhov wavelength yog li 290-460 nanometers, cov teeb ultraviolet no ua rau muaj kev phom sij los ntawm cov tshuaj Redox, cov xim molecules thaum kawg lwj thiab ploj mus.
Muaj ob txoj kev siv lub cev thiab tshuaj lom neeg los tiv thaiv kev puas tsuaj rau xim los ntawm lub teeb UV uas ua rau puas tsuaj.
Nov yog kev qhia luv luv txog txoj kev siv tshuaj lom neeg, uas yog, kev siv cov khoom nqus UV los tiv thaiv cov khoom kom zoo, lossis kom tsis txhob muaj zog rau kev puas tsuaj ntawm cov xim.
Cov khoom nqus Uv yuav tsum muaj cov xwm txheej hauv qab no
(1) tuaj yeem nqus tau lub teeb ultraviolet (tshwj xeeb tshaj yog qhov wavelength ntawm 290-400nm); (2) Kev ruaj khov thermal zoo, txawm tias nyob rau hauv cov txheej txheem yuav tsis hloov pauv vim cua sov, qhov kub volatility yog me me; Kev ruaj khov tshuaj zoo, tsis muaj kev tsis haum tshuaj nrog cov khoom siv hauv cov khoom; (4) Kev sib xyaw zoo, tuaj yeem sib npaug hauv cov khoom siv, tsis muaj te, tsis muaj exudation; (5) Kev ruaj khov photochemical ntawm cov absorbent nws tus kheej yog qhov zoo, tsis decompose, tsis hloov xim; ⑥ Tsis muaj xim, tsis muaj tshuaj lom, tsis muaj ntxhiab; ⑦ tsis kam rau kev ntxuav immersion; ⑧ Pheej yig thiab yooj yim kom tau; 9. Insoluble lossis insoluble hauv dej.
Cov tshuaj nqus Uv tuaj yeem muab faib ua pawg hauv qab no raws li lawv cov qauv tshuaj lom neeg: salicylate esters, phenylketones, benzotriazoles, substituted acrylonitrile, triazines thiab blocked amines.

Kev taw qhia txog khoom thiab nta

Ultraviolet absorbent yog ib hom stabilizer uas siv ntau tshaj plaws, raws li nws cov qauv, nws muaj peev xwm muab faib ua salicylate esters, benzophenone, benzotriazole, substituted acrylonitrile, triazines, thiab lwm yam. Feem ntau siv rau hauv kev lag luam, benzophenone thiab benzotriazole yog siv rau hauv kev lag luam. Lub quencher feem ntau yog hlau sib xyaw, xws li divalent nickel complex, feem ntau yog ultraviolet absorbent thiab, synergistic effect, ultraviolet absorbent yog ib hom stabilizer uas tuaj yeem nqus tau lub hnub ci thiab lub teeb fluorescent hauv ultraviolet, thiab nws tus kheej tsis hloov pauv.
Vim tias lub hnub lub teeb muaj ntau lub teeb ultraviolet uas ua rau cov khoom muaj xim tsis zoo, nws qhov wavelength yog li 290-460 nanometers, cov teeb ultraviolet no ua rau muaj kev phom sij los ntawm cov tshuaj Redox, cov xim molecules thaum kawg lwj thiab ploj mus.
Muaj ob txoj kev siv lub cev thiab tshuaj lom neeg los tiv thaiv kev puas tsuaj rau xim los ntawm lub teeb UV uas ua rau puas tsuaj.
Nov yog kev qhia luv luv txog txoj kev siv tshuaj lom neeg, uas yog, kev siv cov khoom nqus UV los tiv thaiv cov khoom kom zoo, lossis kom tsis muaj zog nws cov xim puas tsuaj.

siv

Nws tuaj yeem nqus tau lub teeb ultraviolet nrog lub wavelength ntawm 270-380 nm, feem ntau yog siv rau polyvinyl chloride, polystyrene, unsaturated resin, polycarbonate, polymethyl methacrylate, polyethylene, ABS resin, epoxy resin thiab cellulose resin, thiab lwm yam. Nws yog qhov tsim nyog rau cov ntaub ntawv photosensitive xws li xim zaj duab xis, xim zaj duab xis, xim ntawv thiab polymer, thiab lwm yam. Tshwj xeeb tshaj yog haum rau cov khoom tsis muaj xim pob tshab thiab lub teeb; Rau kev nqus tau zoo, kev ua haujlwm siab ultraviolet absorber

pob khoom thiab kev thauj mus los

B. Cov khoom no siv tau,,25KG, BAERRLS。
C. Khaws cia rau hauv qhov chaw txias, qhuav thiab muaj cua nkag hauv tsev. Yuav tsum kaw cov thawv kom nruj tom qab siv txhua zaus ua ntej siv.
D. Cov khoom no yuav tsum tau kaw zoo thaum lub sijhawm thauj mus los kom tiv thaiv cov dej noo, alkali thiab acid muaj zog, nag thiab lwm yam tsis huv los ntawm kev sib tov.