Okumhlophe, okukhanyayo, okulula, nokumsulwa, okufanekisela ubumsulwa.
Abantu abaningi bathanda izinto ezimhlophe, futhi izimpahla ezisetshenziswayo zivame ukwenziwa ngombala omhlophe. Ngokuvamile, abantu abathenga izinto ezimhlophe noma abagqoka izingubo ezimhlophe bazoqaphela ukuthi abavumeli okumhlophe kuthole amabala. Kodwa kukhona amazwi athi, “Kule ndawo yonke esheshayo, yeka kuze kube phakade.” Kungakhathaliseki ukuthi umzamo ongakanani owufaka ekugcineni lezi zinto zingangcoliswa, zizophenduka zibe phuzi kancane kancane. Isonto lonke, unyaka, noma iminyaka emithathu, ugqoka isikhwama se-headphone emsebenzini nsuku zonke, futhi ihembe elimhlophe ongaligqokanga ekhabetheni liphenduka libe phuzi ngokuthula ngokwakho.
Eqinisweni, ukuphuzi kwezintambo zezingubo, amathe ezicathulo ezinwebekayo, namabhokisi e-headphone epulasitiki kuwukubonakaliswa kokuguga kwe-polymer, okwaziwa ngokuthi ukuphuzi. Ukuphuzi kubhekisela esimweni sokuwohloka, ukuhlelwa kabusha, noma ukuxhumanisa ama-molecule emikhiqizo ye-polymer ngesikhathi sokusetshenziswa, okubangelwa ukushisa, imisebe yokukhanya, i-oxidation, nezinye izinto, okuholela ekwakhekeni kwamaqembu athile asebenzayo anombala.
La maqembu anombala ngokuvamile amabhondi amabili e-carbon carbon (C=C), amaqembu e-carbonyl (C=O), amaqembu e-imine (C=N), njalo njalo. Lapho inani lamabhondi amabili e-carbon carbon ahlanganisiwe lifinyelela ku-7-8, avame ukubonakala ephuzi. Ngokuvamile, uma ubona ukuthi imikhiqizo ye-polymer iqala ukuphenduka iphuzi, izinga lokuphuzi livame ukwanda. Lokhu kungenxa yokuthi ukuwohloka kwama-polymers kuyindlela yokusabela kweketanga, futhi uma inqubo yokuwohloka iqala, ukuwohloka kwamaketanga e-molecule kufana ne-domino, lapho iyunithi ngayinye iwela ngayinye.
Kunezindlela eziningi zokugcina izinto zimhlophe. Ukwengeza i-titanium dioxide kanye nama-agent amhlophe e-fluorescent kungathuthukisa ngempumelelo umphumela wokwenza izinto zibe mhlophe, kodwa akunakuvimbela izinto ukuthi zingaphuzi. Ukuze kwehliswe ijubane lokushintshashintsha kwama-polymer, kungangezwa iziqinisi zokukhanya, izinciphisi zokukhanya, ama-agent aqeda ukukhanya, njll.. Lezi zinhlobo zezithasiselo zingamunca amandla athwalwa ukukhanya kwe-ultraviolet ekukhanyeni kwelanga, zibuyisele i-polymer esimweni esizinzile. Futhi ama-oxidant alwa nokushisa angabamba ama-free radical akhiqizwa yi-oxidation, noma avimbele ukuwohloka kwamaketanga e-polymer ukuze kuqedwe ukusabela kweketanga kokuwohloka kweketanga le-polymer. Izinto zinesikhathi sokuphila, kanti izithasiselo nazo zinesikhathi sokuphila. Nakuba izithasiselo zinganciphisa ngempumelelo izinga lokushintshashintshashintshashintsha kwe-polymer, zona ngokwazo zizohluleka kancane kancane ngesikhathi sokusetshenziswa.
Ngaphezu kokwengeza izithasiselo, kungenzeka futhi ukuvimbela ukuphuzi kwe-polymer kwezinye izici. Isibonelo, ukunciphisa ukusetshenziswa kwezinto ezisetshenziswa ezindaweni ezishisa kakhulu nezikhanyayo zangaphandle, kuyadingeka ukufaka ungqimba olumunca ukukhanya ezintweni lapho uzisebenzisa ngaphandle. Ukuphuzi akugcini nje ngokuthinta ukubukeka, kodwa futhi kusebenza njengesignali yokuwohloka kokusebenza kwemishini yezinto! Lapho izinto zokwakha ziphuzi, ezinye izinto ezintsha kufanele zishintshwe ngokushesha okukhulu.
Isikhathi sokuthunyelwe: Disemba-20-2023