cov khoom

Synonyms in English

antioxidant

tshuaj yam ntxwv

Ultraviolet absorber yog ib yam ntawm lub teeb stabilizer, tuaj yeem nqus hnub ci thiab fluorescent lub teeb nyob hauv qhov ultraviolet, tab sis nws tus kheej tsis hloov.
Vim lub hnub lub rays muaj ib tug loj npaum li cas ntawm ultraviolet lub teeb teeb meem rau cov xim, nws wavelength yog hais txog 290-460 nanometers, cov teeb meem ultraviolet teeb los ntawm cov tshuaj Redox tshuaj tiv thaiv, xim molecules thaum kawg decompose thiab ploj.
Muaj ob txoj hauv kev ntawm lub cev thiab tshuaj lom neeg los tiv thaiv cov xim puas los ntawm teeb meem UV teeb.
Ntawm no yog ib qho kev qhia luv luv rau cov txheej txheem tshuaj, uas yog, kev siv UV absorbers los tiv thaiv cov khoom tiv thaiv zoo, lossis ua kom tsis muaj zog ntawm cov xim.
Uv absorbers yuav tsum muaj cov hauv qab no
(1) tuaj yeem nqus tau ultraviolet lub teeb (tshwj xeeb tshaj yog lub wavelength ntawm 290-400nm);(2) Zoo thermal stability, txawm nyob rau hauv kev ua yuav tsis hloov vim tshav kub, kub volatility yog me me;Kev ruaj ntseg tshuaj zoo, tsis muaj qhov cuam tshuam nrog cov khoom siv hauv cov khoom;(4) Zoo miscibility, tuaj yeem sib npaug ntawm cov khoom, tsis muaj Frost, tsis muaj exudation;(5) Lub photochemical stability ntawm lub absorbent nws tus kheej yog zoo, tsis decompose, tsis hloov xim;⑥ Tsis muaj xim, tsis muaj tshuaj lom, tsis muaj ntxhiab;⑦ tsis kam rau immersion ntxuav;⑧ Pheej yig thiab yooj yim kom tau txais;9. Insoluble lossis insoluble hauv dej.
Uv absorbers tuaj yeem muab faib ua pawg hauv qab no raws li lawv cov qauv tshuaj: salicylate esters, phenylketones, benzotriazoles, hloov acrylonitrile, triazines thiab blocked amines.

Khoom taw qhia thiab nta

Ultraviolet absorbent yog siv dav tshaj plaws ib hom lub teeb stabilizer, raws li nws cov qauv tuaj yeem muab faib ua salicylate esters, benzophenone, benzotriazole, hloov acrylonitrile, triazines, thiab lwm yam, kev lag luam daim ntawv thov ntawm feem ntau benzophenone thiab benzotriazole.Lub quencher feem ntau yog cov hlau complex, xws li divalent npib tsib xee complex, feem ntau thiab ultraviolet absorbent thiab, synergistic nyhuv, ultraviolet absorbent yog ib hom ntawm lub teeb stabilizer, yuav nqus tau tshav ntuj thiab fluorescent teeb qhov chaw nyob rau hauv lub ultraviolet ib feem, thiab nws tus kheej tsis hloov.
Vim lub hnub lub rays muaj ib tug loj npaum li cas ntawm ultraviolet lub teeb teeb meem rau cov xim, nws wavelength yog hais txog 290-460 nanometers, cov teeb meem ultraviolet teeb los ntawm cov tshuaj Redox tshuaj tiv thaiv, xim molecules thaum kawg decompose thiab ploj.
Muaj ob txoj hauv kev ntawm lub cev thiab tshuaj lom neeg los tiv thaiv cov xim puas los ntawm teeb meem UV teeb.
Ntawm no yog cov lus qhia luv luv rau cov txheej txheem tshuaj, uas yog, kev siv UV absorbers los tiv thaiv cov khoom tiv thaiv zoo, lossis ua kom tsis muaj zog ntawm cov xim.

siv

Nws tuaj yeem nqus tau ultraviolet lub teeb 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. xws li xim zaj duab xis, xim zaj duab xis, xim ntawv thiab polymer, thiab lwm yam. Tshwj xeeb tshaj yog tsim rau cov khoom tsis muaj xim pob tshab thiab lub teeb;Rau kev nqus tau zoo, kev ua haujlwm siab ultraviolet absorber

pob thiab thauj

B. Cov khoom no tuaj yeem siv tau, 25KG, BAERRLS.
C. Khaws ntim rau hauv qhov chaw txias, qhuav thiab qhov cua nyob hauv tsev.Cov thawv ntim khoom yuav tsum tau muab kaw kom nruj tom qab siv txhua zaus ua ntej siv.
D. Cov khoom no yuav tsum raug kaw kom zoo thaum lub sijhawm thauj mus los kom tsis txhob ya raws, muaj zog alkali thiab acid, nag thiab lwm yam impurities los ntawm kev sib xyaw.