mankhwala

Mawu ofanana mu Chingerezi

antioxidant

mankhwala makhalidwe

Ultraviolet absorber ndi mtundu wa stabilizer yowunikira, imatha kuyamwa kuwala kwa dzuwa ndi gwero la kuwala kwa fulorosenti mu gawo la ultraviolet, koma lokha silisintha.
Chifukwa kuwala kwa dzuwa kumakhala ndi kuwala kochuluka kwa ultraviolet kovulaza zinthu zamitundu, kutalika kwake kumakhala pafupifupi 290-460 nanometers, kuwala kowopsa kwa ultraviolet kumeneku kudzera mumankhwala a Redox, mamolekyu amtundu amatha kuwola ndikuzimiririka.
Pali njira zonse zakuthupi ndi zamankhwala zopewera kuwonongeka kwa mtundu kuchokera ku kuwala koyipa kwa UV.
Pano pali mawu oyamba a mankhwala njira, ndiko kuti, ntchito UV absorbers kuteteza chinthu ogwira kupewa, kapena kufooketsa chiwonongeko chake cha mtundu.
Zoyatsira UV ziyenera kukhala ndi zinthu zotsatirazi
(1) imatha kuyamwa kwambiri kuwala kwa ultraviolet (makamaka kutalika kwa 290-400nm);(2) Kukhazikika kwabwino kwamafuta, ngakhale pakuwongolera sikungasinthe chifukwa cha kutentha, kusinthasintha kwa kutentha kumakhala kochepa;Good mankhwala bata, palibe chokhwima ndi zigawo zikuluzikulu za mankhwala;(4) Good miscibility, akhoza wogawana omwazika mu zakuthupi, palibe chisanu, palibe exudation;(5) Kukhazikika kwa photochemical kwa chotengera chokha ndi chabwino, sichiwola, sichimasintha mtundu;⑥ Zopanda mtundu, zopanda poizoni, zopanda fungo;⑦ kukana kumizidwa kusamba;⑧ Zotsika mtengo komanso zosavuta kupeza;9. Kusasungunuka kapena kusungunuka m'madzi.
Zotengera za UV zitha kugawidwa m'magulu otsatirawa malinga ndi kapangidwe kake ka mankhwala: salicylate esters, phenylketones, benzotriazoles, acrylonitrile m'malo, triazines ndi ma amine otsekeka.

Chiyambi cha malonda ndi mawonekedwe ake

Ultraviolet absorbent ndi ambiri ntchito mtundu umodzi wa stabilizer kuwala, malinga ndi dongosolo ake akhoza kugawidwa mu salicylate esters, benzophenone, benzotriazole, m'malo acrylonitrile, triazines, etc., ntchito mafakitale kwambiri benzophenone ndi benzotriazole.The quencher makamaka zitsulo zovuta, monga divalent faifi tambala zovuta, nthawi zambiri ndi ultraviolet kuyamwa ndi synergistic zotsatira, ultraviolet absorbent ndi mtundu wa stabilizer kuwala, akhoza kuyamwa kuwala kwa dzuwa ndi fulorosenti kuwala gwero mu ultraviolet mbali, ndipo palokha sasintha.
Chifukwa kuwala kwa dzuwa kumakhala ndi kuwala kochuluka kwa ultraviolet kovulaza zinthu zamitundu, kutalika kwake kumakhala pafupifupi 290-460 nanometers, kuwala kowopsa kwa ultraviolet kumeneku kudzera mumankhwala a Redox, mamolekyu amtundu amatha kuwola ndikuzimiririka.
Pali njira zonse zakuthupi ndi zamankhwala zopewera kuwonongeka kwa mtundu kuchokera ku kuwala koyipa kwa UV.
Pano pali chiyambi chachidule cha mankhwala njira, ndiko kuti, ntchito UV absorbers kuteteza chinthu ogwira kupewa, kapena kufooketsa chiwonongeko chake cha mtundu.

ntchito

Iwo akhoza bwino kuyamwa ultraviolet kuwala ndi wavelength wa 270-380 nm, makamaka ntchito polyvinyl kolorayidi, polystyrene, unsaturated utomoni, polycarbonate, polymethyl methacrylate, polyethylene, ABS utomoni, epoxy utomoni ndi mapadi utomoni, etc. Ndi oyenera photosensitive zipangizo monga filimu yamtundu, filimu yamtundu, mapepala amtundu ndi polima, etc. Zoyenera makamaka kwa zinthu zopanda mtundu komanso zowala;Kuti mayamwidwe amphamvu, azitha kuchita bwino kwambiri ndi ultraviolet absorber

phukusi ndi transport

B. Izi zitha kugwiritsidwa ntchito,, 25KG, BAERRLS.
C. Sungani chosindikizidwa mu malo ozizira, owuma ndi mpweya wokwanira m'nyumba.Zotengera ziyenera kutsekedwa mwamphamvu mukatha kugwiritsa ntchito chilichonse musanagwiritse ntchito.
D. Mankhwalawa ayenera kusindikizidwa bwino panthawi yoyendetsa kuti ateteze chinyezi, alkali wamphamvu ndi asidi, mvula ndi zonyansa zina kuti zisasakanike.