I-Epoxy UV yokwelapha i-resin isetshenziswa kabanzi emikhakheni yokuphonswa kokufakwa kukagesi, i-anti-corrosion coating, isibopho sensimbi nokunye ngenxa yamandla ayo aphezulu okubopha, indawo ebanzi yokubopha, ukushwabana okuphansi, ukuzinza okuhle, ukufakwa kukagesi okuhle kakhulu, amandla aphezulu okusebenza kanye ukucutshungulwa okuhle.Eminyakeni yamuva nje, i-epoxy UV yokwelapha i-resin njengemboni iye yachuma.
Kodwa-ke, okwamanje, ukumelana nesimo sezulu semikhiqizo eminingi ye-epoxy abuthakathaka, ikakhulukazi ekukhiqizeni okunamathelayo kwe-epoxy, ingcina ye-led potting, i-epoxy UV yokwelapha ubucwebe bokunamathisela ubucwebe be-resin, njll., izidingo zombala womkhiqizo ziqinile, nazo ezibeka phambili phezulu. izidingo zokusebenza kwe-anti yellowing yesistimu ye-epoxy.
Kunezici eziningi ezibangela ukuphuzi kwemikhiqizo ye-epoxy: 1. I-bisphenol isakhiwo se-epoxy UV ephulukisa i-resin enephunga elimnandi kulula ukuyi-oxidize ukukhiqiza i-carbonyl ukuze yakhe iqembu eliphuzi;2. Ingxenye ye-amine yamahhala ku-ejenti yokwelapha i-amine yenziwa i-polymerized ngokuqondile nge-epoxy UV elapha inhlaka, okuholela ekukhuphukeni kwezinga lokushisa lendawo kanye nokusheshisa ukuphuzi;3. Ama-accelerator e-amine ephakeme kanye nama-nonylphenol accelerator kulula ukushintsha umbala ngaphansi kwe-oxygen eshisayo kanye nemisebe ye-UV;4. Uma izinga lokushisa liphezulu kakhulu ngesikhathi sokusabela, ukungcola okusele kanye nama-catalysts ensimbi ohlelweni kuzodala ukuphuzi.
Isixazululo esisebenzayo ukwengeza i-antioxidant ne-ultraviolet absorber, engavimbela ngokuphumelelayo futhi ibambezele ukuphuzi.Kodwa-ke, kunezinhlobo eziningi zama-antioxidant, futhi ukukhetha imikhiqizo efanelekile kudinga ukwesekwa okuthile kwezobuchwepheshe kanye nokuqongelela ulwazi.
Ukuhlukaniswa kwama-antioxidants: enye i-antioxidant eyinhloko: bamba ama-radicals mahhala e-peroxide, ikakhulukazi avimbela ama-phenol Antioxidants;Enye i-antioxidant esizayo: ukubola kwe-hydroperoxides, ikakhulukazi i-phosphite esters nama-thioesters.Ngokuvamile, ama-antioxidants ahlukene anconywa ngokuya ngenqubo yokukhiqiza, izinto zokusetshenziswa, izithasiselo, izithasiselo kanye nezigcwalisi zabakhiqizi abahlukahlukene, yisiphi isigaba sokuphuzi kanye nezinga lokuphuzi.
Ukukhanya kwe-Ultraviolet nakho kuyimbangela ebalulekile ebangela ukuphuzi kwe-oxidation yesistimu ye-epoxy, ikakhulukazi evela elangeni.Ngakho-ke, ikakhulukazi kumakhasimende imikhiqizo yawo edinga ukusetshenziswa ngaphandle, sizoncoma ukwengeza inani elithile le-UV absorber emikhiqizweni, engakwazi ukumunca ngempumelelo i-UV futhi ibambezele ukuphuzi.Ngaphezu kwalokho, ukusetshenziswa kwe-ultraviolet kanye ne-antioxidant kungadlala umphumela we-synergistic, ngomphumela wokuthi u-1 kanye no-1 mkhulu kuno-2.
Kunjalo, ukusetshenziswa Antioxidants kanye ultraviolet absorbers ayikwazi ngokuyisisekelo ukuxazulula inkinga yellowing, kodwa ngaphakathi uhla oluthile nesikhathi, kungaba ngempumelelo ukuvimbela oxidation yellowing imikhiqizo, ugcine umbala wamanzi imikhiqizo esobala futhi ngcono izinga lemikhiqizo. .
Isikhathi sokuthumela: May-09-2022