Ngaphambi kokuqonda izizathu, okokuqala kudingeka sazi ukuthi yini "ukukhanya kwelanga okusheshayo"kunjalo.
Ukushesha kokukhanya kwelanga: kubhekisela emandleni ezimpahla ezidayiwe ukugcina umbala wazo wangempela ngaphansi kokukhanya kwelanga.Ngokwemithethonqubo evamile, ukukalwa kokushesha kwelanga kusekelwe ekukhanyeni kwelanga njengendinganiso.Ukuze kube lula ukulawula elabhorethri, imithombo yokukhanya yokwenziwa ngokuvamile isetshenziswa futhi ilungiswe lapho kudingeka.Umthombo wokukhanya wokwenziwa osetshenziswa kakhulu ukukhanya kwe-hernia, kodwa amalambu e-carbon arc nawo ayasetshenziswa.Ngaphansi kokukhanya kokukhanya, udayi uthatha amandla okukhanya, izinga lamandla liyakhula, futhi ama-molecule asesimweni esijabulisayo.Isistimu yombala yama-molecule kadayi iyashintsha noma ibhujiswe, ibangele ukuthi udayi ubole futhi ubangele ukushintsha kombala noma ukufiphala.
1. Umphumela wokukhanya kumadayi
Lapho i-molecule kadayi imunca amandla e-photon, izokwenza ukuthi ama-electron e-valence angaphandle e-molecule aguquke esuka endaweni ephansi aye esimweni senjabulo.
Ukusabela kwamakhemikhali ezithombe kwenzeka phakathi kwama-molecule kadayi ajabulile namanye ama-molecule, okuholela ekufipheleni kukadayi nokugqama kwe-photobrittleness kwefayibha.
2.Izinto ezithinta ukushesha kokukhanya kodayi
1).Umthombo wokukhanya nobude begagasi bokukhanya kwe-irradiating;
2).Izici zemvelo;
3).Izakhiwo zamakhemikhali kanye nesakhiwo senhlangano semicu;
4).Amandla okubopha phakathi kwedayi nefiber;
5).Isakhiwo samakhemikhali sedayi;
6).Isimo sokugxila kodayi kanye nesimo sokuhlanganisa;
7).Ithonya lomjuluko wokwenziwa kudayi we-photofading;
8).Ithonya lezithasiselo.
3.Izindlela zokuthuthukisa ukushesha kokukhanya kwelanga kodayi
1).Thuthukisa ukwakheka kodayi ukuze ukwazi ukusebenzisa amandla okukhanya ngenkathi unciphisa umthelela ohlelweni lombala wedayi, ngaleyo ndlela ugcine umbala wokuqala;okungukuthi, odayi abanokukhanya okuphezulu okusheshayo bavame ukushiwo.Intengo yodayi abanjalo ngokuvamile iphakeme kunaleyo yodayi abavamile.Ezindwangu ezinezidingo eziphezulu zokuchayeka elangeni, kufanele uqale ngokukhetha udayi.
2).Uma indwangu idayiwe futhi ukushesha kokukhanya akuhlangabezani nezidingo, kungabuye kuthuthukiswe ngokusebenzisa izithasiselo.Engeza izithasiselo ezifanele phakathi nenqubo yokudaya noma ngemva kokudaya, ukuze kuthi lapho kuvezwa ukukhanya, kuzosabela ngokukhanya ngaphambi kodayi futhi kudle amandla okukhanya, ngaleyo ndlela kuvikele amangqamuzana odayi.Ngokujwayelekile ihlukaniswe ngama-absorber ultraviolet kanye nama-anti-ultraviolet ejenti, ngokuhlanganyela abizwa ngokuthi izithuthukisi zokusheshisa ilanga.
Ukushesha kokukhanya kwelanga kwezindwangu ezinombala okhanyayo ezidaywe ngodayi abasebenzayo
Ukufiphala okukhanyayo kodayi abasebenzayo kuwukusabela okuyinkimbinkimbi kakhulu kwe-photooxychlorination.Ngemuva kokuqonda indlela yokwenza isithombe, singadala izithiyo ezithile ekuphenduleni kwe-photooxidation lapho siklama ukwakheka kwamangqamuzana odayi ukubambezela ukufiphala kokukhanya.Ngokwesibonelo, odayi abaphuzi abaqukethe amaqembu e-dolsulfonic acid nama-pyrazolones, odayi abaluhlaza okwesibhakabhaka abane-methyl phthalocyanine nezindandatho ze-disazo trichelate, nodayi ababomvu abanezinsimbi zensimbi, kodwa basantula ukumelana nokukhanya kwelanga okubomvu.Odayi abasebenzayo bokukhanya okusheshayo.
Ukushesha okukhanyayo kwezimpahla ezidayiwe kuyahlukahluka ngokushintsha kokugxilwa kokudaya.Ezindwangu ezidaywe ngodayi ofanayo ku-fiber efanayo, ukushesha kokukhanya kuyanda ngokwanda kokugxila kokudaya.Ukugxila kokudaya kwezindwangu ezinombala okhanyayo kuphansi futhi ukukhanya okukhanyayo kuphansi.idigri yehle ngokufanele.Kodwa-ke, ukushesha kokukhanya kodayi abavamile ekhadini lombala wodayi ophrintiwe kukalwa uma ukugxiliswa kokudaya kungu-1/1 wokujula okujwayelekile (okungukuthi 1% owf noma 20-30g/l ukugxiliswa kukadayi).Uma ukugxila kokudaya kungu-1/ 6. Esimeni sika-1/12 noma 1/25, ukushesha kokukhanya kuzokwehla kakhulu.
Abanye abantu baye bahlongoza ukusebenzisa ama-absorber e-ultraviolet ukuthuthukisa ukushesha kokukhanya kwelanga.Lena indlela engathandeki.Kusetshenziswa imisebe eminingi ye-ultraviolet, futhi ingathuthukiswa kuphela ngesinyathelo esiyingxenye, futhi izindleko ziphakeme kakhulu.Ngakho-ke, ukukhetha okunengqondo kuphela kwamadayi kungaxazulula inkinga yokukhanya okusheshayo.
Isikhathi sokuthumela: Jan-30-2024