Ngokugxila okwandayo ezisombululweni ezisimeme eminyakeni yamuva nje, sibona isidingo esikhulayo samabhulokhi wokwakha asimeme kanye nezinhlelo ezisekelwe emanzini, ngokuphambene nesisekelo sezinto ezincibilikayo. Ukwelashwa kwe-UV kuwubuchwepheshe obusebenza kahle bensiza obakhiwe emashumini eminyaka adlule. Ngokuhlanganisa izinzuzo zokwelashwa okusheshayo, ukwelapha kwe-UV yekhwalithi ephezulu nobuchwepheshe bezinhlelo ezisekelwe emanzini, kungenzeka ukuthola okungcono kakhulu kwemihlaba emibili esimeme.
Ukwenyuka kokugxila kwezobuchwepheshe ekuthuthukisweni okuzinzile
Ukuthuthuka okungakaze kubonwe kwalolu bhubhane ngonyaka ka-2020, okushintsha kakhulu indlela esiphila ngayo nokwenza ibhizinisi, nakho kube nomthelela ekugxilweni kweminikelo esimeme embonini yamakhemikhali. Izibopho ezintsha zenziwa emazingeni aphezulu ezombusazwe emazwenikazi amaningana, amabhizinisi ayaphoqeleka ukuthi abuyekeze amasu awo kanye nokuzibophezela kokusimama kuyacutshungulwa kuze kufike emininingwaneni. Futhi kusemininingwane izixazululo ezingatholakala zokuthi ubuchwepheshe bungasiza kanjani ukufeza izidingo zabantu namabhizinisi ngendlela eqhubekayo. Indlela ubuchwepheshe bungasetshenziswa futhi buhlanganiswe ngezindlela ezintsha, isibonelo inhlanganisela yobuchwepheshe be-UV kanye nezinhlelo ezisekelwe emanzini.
Ukucindezela kwemvelo kobuchwepheshe bokwelapha be-UV
Ubuchwepheshe bokwelapha be-UV bathuthukiswa kakade ngeminyaka yawo-1960 kusetshenziswa amakhemikhali anama-unsaturation ukuze elaphe ngokuchayeka ekukhanyeni kwe-UV noma iMisebe ye-Electron (EB). Ngokuhlanganyela okubizwa ngokuthi ukwelapha ngemisebe, inzuzo enkulu kwaba ukuphulukisa ngokushesha kanye nezakhiwo ezinhle kakhulu zokumboza. Ngawo-80s ubuchwepheshe buthuthukile futhi baqala ukusetshenziswa esikalini sokuhweba. Njengoba kwanda ukuqwashisa ngomphumela wezincibilikisi endaweni ezungezile, kwanda nokuduma kokwelapha ngemisebe njengendlela yokunciphisa amanani ezincibilikisi ezisetshenziswayo. Lo mkhuba awuzange wehlise ijubane futhi ukwanda kokwamukelwa kanye nohlobo lwezicelo kuqhubekile kusukela ngaleso sikhathi, kanjalo nesidingo kokubili ngokokusebenza nokusimama.
Ukuqhela kuzincibilikisi
Nakuba ukwelapha kwe-UV ngokwako kakade kuwubuchwepheshe obuzinzile, ezinye izinhlelo zokusebenza zisadinga ukusetshenziswa kwezinyibilikisi noma ama-monomers (asengozini yokufuduka) ukuze kwehliswe i-viscosity ukuze kube nomphumela owanelisayo uma usebenzisa okokunamathela noma uyinki. Muva nje, kwavela umbono wokuhlanganisa ubuchwepheshe be-UV nobunye ubuchwepheshe obuqhubekayo: izinhlelo ezisekelwe emanzini. Lawa masistimu ngokuvamile awohlobo oluncibilikayo emanzini (okungaba ngokuhlukaniswa kwe-ionic noma ukuhambisana okuxubene namanzi) noma ohlobo lwe-PUD (polyurethane dispersion) lapho amaconsi esigaba esingaxubeki ahlakazeka khona emanzini ngokusebenzisa i-ejenti ehlakazayo.
Ngaphandle kokugqoka izinkuni
Ekuqaleni izimbotshana ze-UV ezitholakala emanzini ziye zamukelwa ikakhulukazi imboni yokugqoka izinkuni. Lapha bekulula ukubona izinzuzo zokuhlanganisa izinzuzo ezivela ezingeni eliphezulu lokukhiqiza (uma kuqhathaniswa nokungeyona i-UV) kanye nokumelana namakhemikhali aphezulu ne-VOC ephansi. Izakhiwo ezibalulekile kuma-coatings we-flooring kanye nefenisha. Kodwa-ke, kamuva nje ezinye izinhlelo zokusebenza seziqalile ukuthola amandla e-UV esekwe emanzini. Ukuphrinta kwedijithali kwe-UV okusekelwe emanzini (oyinki be-inkjet) kungazuza enzuzweni yakho kokubili okusekelwe emanzini (i-viscosity ephansi ne-VOC ephansi) kanye noyinki wokwelapha we-UV (ukwelapha okusheshayo, ukulungiswa okuhle kanye nokumelana namakhemikhali). Intuthuko iya phambili ngokushesha futhi kungenzeka ukuthi ezinye izinhlelo zokusebenza maduze zizohlola amathuba okusebenzisa ukwelapha kwe-UV okusekelwe emanzini.
I-UV esekelwe emanzini yonke indawo?
Sonke siyazi ukuthi iplanethi yethu ibhekene nezinselele ezithile ezizayo. Ngokukhula kwesibalo sabantu kanye nezinga lokuphila elikhulayo, ukusetshenziswa kanye nokuphathwa kwezinsiza kuba bucayi kakhulu kunangaphambili. Ukwelashwa kwe-UV ngeke kube yimpendulo yazo zonke lezi zinselele kodwa kungaba ucezu olulodwa lwendida njengobuchwepheshe obusebenza ngempumelelo nensiza. Ubuchwepheshe bendabuko obuthwala i-solvent budinga amasistimu anamandla aphezulu ukuze omiswe, kanye nokukhululwa kwe-VOC. Ukwelashwa kwe-UV kungenziwa ngokusebenzisa izibani ze-LED zamandla aphansi kumayinki nama-coatings angenawo ama-solvent noma, njengoba sifundile kulesi sihloko, kusetshenziswa amanzi kuphela njenge-solvent. Ukukhetha ubuchwepheshe obuzinzile nezinye izindlela kukwenza ukwazi ukuthi ungagcini nje ngokuvikela ikhishi lakho noma ishalofu lokubhukha nge-coating esebenza kahle kakhulu, kodwa futhi uvikele futhi uqaphele izinsiza ezilinganiselwe zeplanethi yethu.
Isikhathi sokuthumela: May-24-2024
