izindaba

I-Absorber ye-Ultraviolet (i-UV absorber) iyisinzinzisi sokukhanya esingamunca ingxenye ye-ultraviolet yemithombo yokukhanya ye-fluorescent ngaphandle kokuzishintsha.I-Absorber ye-Ultraviolet ngokuvamile iyi-powder emhlophe e-crystalline, ukuzinza okuhle kokushisa, ukuzinza okuhle kwamakhemikhali, okungenakubala, okungenayo ubuthi, okungenayo iphunga, okuvame ukusetshenziswa kuma-polymers (amapulasitiki, njll.), izimbotshana nokunye.

Iningi lemibalabala, ikakhulukazi imibala ye-pigment ye-inorganic, ingadlala izinga elithile lokusimamisa ukukhanya lapho isetshenziswa yodwa emikhiqizweni yepulasitiki.Ngemikhiqizo yepulasitiki enemibala yokusetshenziswa kwangaphandle isikhathi eside, ukuzinza kokukhanya komkhiqizo akukwazi ukuthuthukiswa umbala wombala wodwa.Ukusetshenziswa kwe-stabilizer yokukhanya kuphela kungavimbela ngokuphumelelayo noma ukunciphisa izinga lokuguga elikhanyayo lemikhiqizo yepulasitiki enemibala isikhathi eside.Ukuthuthukisa ngokuphawulekayo ukuzinza kokukhanya kwemikhiqizo yepulasitiki enemibala.I-Hindered amine light stabilizer (HALS) iyikilasi lama-organic amine compounds anomphumela we-steric hindrance.Ngenxa yemisebenzi yayo yokubola kwe-hydroperoxide, ukucisha i-oxygen enamandla, ukubamba ama-radicals mahhala, nokugaywa kabusha kwamaqembu asebenzayo, i-HALS iyisinzinzisi sokukhanya sepulasitiki esisebenza kahle kakhulu ngokumelene nokuthwebula izithombe kanye nenani elikhulu kunawo wonke ekhaya naphesheya.Idatha ibonisa ukuthi isizinzisi sokukhanya esifanelekile noma uhlelo olufanele lwenhlanganisela ye-antioxidant ne-stabilizer ekhanyayo ingathuthukisa ukuqina kokukhanya nomoya-mpilo wemikhiqizo yepulasitiki enombala wangaphandle izikhathi ezimbalwa.Emikhiqizweni yepulasitiki enemibala enemibala ethwebulayo kanye ne-photosensitive (njenge-cadmium ephuzi, i-rutile engavaliwe, njll.), kucatshangelwa umthelela we-catalytic photoaging wombala, inani le-stabilizer yokukhanya kufanele likhuliswe ngokufanele.

Ama-absorbers e-Uv ngokuvamile angahlukaniswa ngokuya ngesakhiwo samakhemikhali, ingxenye yesenzo kanye nokusetshenziswa, okuchazwe ngezansi:

I-1.Ukuhlukaniswa ngokwesakhiwo samakhemikhali: ama-absorber ultraviolet angahlukaniswa abe ama-absorber ultraviolet aphilayo kanye nama-absorber ultraviolet angaphili.Izinto ezimunca i-ultraviolet yemvelo ikakhulukazi zifaka i-benzoate, i-benzotriazole, i-cyanoacrylate, njll., kuyilapho izinto ezimunca i-ultraviolet ezingaphili zibandakanya ikakhulukazi i-zinc oxide, i-iron oxide, i-titanium dioxide nokunye.

I-2.Ukuhlelwa ngokwendlela yesenzo: i-absorber ye-ultraviolet ingahlukaniswa ngohlobo lokuvikela kanye nohlobo lokumunca.Ama-Absorber e-UV avikelayo ayakwazi ukukhombisa ukukhanya kwe-UV futhi ngaleyo ndlela akuvimbele ukuthi angangeni emzimbeni, kuyilapho ukumunca ama-UV absorbers akwazi ukumunca ukukhanya kwe-UV futhi akuguqule ekushiseni noma ekukhanyeni okubonakalayo.

I-3.Ukuhlelwa ngokusho kokusetshenziswa: i-ultraviolet absorbent ingahlukaniswa ngebanga lezimonyo, ibanga lokudla, ibanga lemithi, njll. I-Cosmetic grade ye-UV absorbers isetshenziswa ikakhulukazi esikhumbeni selanga, imikhiqizo yokunakekelwa kwesikhumba nezinye izimonyo, ama-absorbers e-UV ebangeni lokudla asetshenziswa ikakhulukazi ekudleni. izinto zokupakisha, kanye ne-absorber ye-UV yebanga lemithi isetshenziswa kakhulu emithini.

U-Unilong Industry ungumbungazi oveleleUmkhiqizi we-UV, singanikeza okulandelayoUchungechunge lwe-UVyemikhiqizo, uma uyidinga, sicela ukhululeke ukuxhumana nathi