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I-Ultraviolet absorber (i-UV absorber) sisizinzisi sokukhanya esinokufunxa inxalenye yelanga kunye nemithombo yokukhanya ye-fluorescent ngaphandle kokutshintsha. I-Ultraviolet absorber ikakhulu yi-white crystalline powder, uzinzo oluhle lobushushu, uzinzo oluhle lweekhemikhali, ayinambala, ayinatyhefu, ayinavumba, isetyenziswa ngokubanzi kwiipolymers (iiplastiki, njl.njl.), ii-coatings njalo njalo.

Uninzi lwezinto ezifaka imibala, ingakumbi izinto ezifaka imibala kwi-pigment ezingaphiliyo, zinokudlala inqanaba elithile lokuzinzisa ukukhanya xa zisetyenziswa zodwa kwiimveliso zeplastiki. Kwiimveliso zeplastiki ezifakwe imibala ukuze zisetyenziswe ngaphandle ixesha elide, ukuzinza kokukhanya kwemveliso akunakuphuculwa yi-colorant yodwa. Kuphela ukusetyenziswa kwe-light stabilizer okunokuthintela ngempumelelo okanye kunciphise izinga lokuguga kokukhanya kweemveliso zeplastiki ezifakwe imibala ixesha elide. Kuphucula kakhulu ukuzinza kokukhanya kweemveliso zeplastiki ezifakwe imibala. I-Hindered amine light stabilizer (HALS) ludidi lwee-organic amine compounds ezine-steric blockade effect. Ngenxa yemisebenzi yayo yokubola i-hydroperoxide, ukucima i-radical oxygen, ukubamba ii-free radicals, kunye nokurisayikilisha amaqela asebenzayo, i-HALS yi-plastic light stabilizer enobuchule obuphezulu bokulwa nokufota kwaye inenani elikhulu ekhaya nakwamanye amazwe. Idatha ibonisa ukuba i-light stabilizer efanelekileyo okanye inkqubo efanelekileyo yokudibanisa i-antioxidant kunye ne-light stabilizer inokuphucula ukuzinza kokukhanya kunye ne-oxygen kwiimveliso zeplastiki ezifakwe imibala zangaphandle izihlandlo ezininzi. Kwiimveliso zeplastiki ezifakwe imibala enombala othambileyo nothambileyo (ezifana ne-cadmium yellow, i-rutile engafakwanga i-uncored, njl.njl.), xa kujongwa isiphumo sokukhanya esibangela ukucazululeka kwemibala, ubungakanani besiqinisi sokukhanya kufuneka bonyuswe ngokufanelekileyo.

Izifunxi ze-UV ngokubanzi zinokwahlulwa ngokwesakhiwo seekhemikhali, iqhezu lesenzo kunye nokusetyenziswa, ezichazwe ngezantsi:

1. Ulwahlulo ngokwesakhiwo seekhemikhali: ii-ultraviolet absorbers zinokwahlulwa zibe zii-organic ultraviolet absorbers kunye nee-inorganic ultraviolet absorbers. Ii-organic ultraviolet absorbers ziquka ikakhulu ii-benzoates, i-benzotriazole, i-cyanoacrylate, njl.njl., ngelixa ii-inorganic ultraviolet absorbers ziquka ikakhulu i-zinc oxide, i-iron oxide, i-titanium dioxide njalo njalo.

2. Ukwahlulahlula ngokwendlela yokusebenza: i-ultraviolet absorber inokwahlulwahlulwa ibe yi-shielding type kunye ne-absorbing type. I-shielding UV absorbers ziyakwazi ukubonakalisa ukukhanya kwe-UV kwaye ngaloo ndlela zithintele ukuba kungangeni emzimbeni, ngelixa i-UV absorbers ezifunxayo zikwazi ukufunxa ukukhanya kwe-UV kwaye ziguqulele kubushushu okanye ukukhanya okubonakalayo.

3. Ulwahlulo ngokwendlela olusetyenziswa ngayo: isifunxi se-ultraviolet sinokwahlulwa sibe yi-cosmetic grade, i-food grade, i-pharmaceutical grade, njl. Izifunxi ze-UV ze-cosmetic grade zisetyenziswa kakhulu kwi-sunscreen, kwiimveliso zokhathalelo lolusu nakwezinye izinto zokuthambisa, izifunxi ze-UV ze-food grade zisetyenziswa kakhulu kwizixhobo zokupakisha ukutya, kwaye izifunxi ze-UV ze-pharmaceutical grade zisetyenziswa kakhulu kwiziyobisi.

I-Unilong Industry yingcaliUmenzi we-UV, singabonelela ngoku kulandelayoUthotho lwe-UViimveliso, ukuba uyafuna, nceda uzive ukhululekile ukuqhagamshelana nathi