Umhlophe, ukhanya, ulula, kwaye umsulwa, ufuzisela ubunyulu.
Abantu abaninzi bathanda izinto ezimhlophe, kwaye izinto ezithengiswayo zihlala zenziwe ngombala omhlophe. Ngokwesiqhelo, abantu abathenga izinto ezimhlophe okanye abanxiba iimpahla ezimhlophe baya kuqaphela ukuba umhlophe ungafumani mabala. Kodwa kukho intetho ethi, “Kule ndalo ikhawulezayo, yilahle ngonaphakade.” Nokuba ungakanani na umzamo owenzayo ekugcineni ezi zinto zingangcoliswa, ziya kuba tyheli kancinci kancinci zodwa. Kangangeveki, unyaka, okanye iminyaka emithathu, unxiba i-headphone case emsebenzini yonke imihla, kwaye ihempe emhlophe ongayinxibanga kwi-wardrobe ijika ibe tyheli kancinci yodwa.
Enyanisweni, ukutyhelika kweefayibha zempahla, izihlangu ezithambileyo, kunye neebhokisi zeplastiki zee-headphone kubonakaliswa kokwaluphala kwe-polymer, okwaziwa ngokuba kukutyhelika. Ukutyhelika kubhekisa kwinto yokuwohloka, ukuhlelwa ngokutsha, okanye ukudibanisa ii-cross-linking kwiimolekyuli zeemveliso ze-polymer ngexesha lokusetyenziswa, okubangelwa bubushushu, imitha yokukhanya, i-oxidation, kunye nezinye izinto, okubangela ukwakheka kwamaqela athile asebenzayo anemibala.
La maqela anemibala adla ngokuba zii-carbon carbon double bonds (C=C), amaqela e-carbonyl (C=O), amaqela e-imine (C=N), njalo njalo. Xa inani lee-conjugated carbon carbon double bonds lifikelela kwi-7-8, zihlala zibonakala zityheli. Ngokwesiqhelo, xa uqaphela ukuba iimveliso ze-polymer ziqala ukuba tyheli, izinga lokuba tyheli lidla ngokwanda. Oku kungenxa yokuba ukuwohloka kwee-polymers kukusabela kwetyathanga, kwaye xa inkqubo yokuwohloka iqala, ukuwohloka kwee-molecular chains kufana ne-domino, apho iyunithi nganye iwela nganye nganye.
Zininzi iindlela zokugcina izinto zimhlophe. Ukongeza i-titanium dioxide kunye nee-agents whitening fluorescent kunokuphucula ngempumelelo isiphumo sokuba mhlophe kwezinto, kodwa akunakuthintela ukuba izinto zingabi tyheli. Ukuze kuncitshiswe ukuba tyheli kweepolymers, kunokongezwa iziqinisi zokukhanya, izifunxi zokukhanya, ii-agents zokucima, njl.njl. Ezi ntlobo zezongezo zinokufunxa amandla athwalwa kukukhanya kwe-ultraviolet elangeni, zibuyisele ipolymer kwimeko ezinzileyo. Kwaye ii-anti thermal oxidants zinokubamba ii-free radicals eziveliswa yi-oxidation, okanye zithintele ukuwohloka kwee-polymer chains ukuze kupheliswe ukusabela kwe-chain of polymer chain degradation. Izinto zinexesha elide, kwaye izongezo nazo zinexesha elide. Nangona izongezo zinokunciphisa ngempumelelo isantya sokuba tyheli kweepolymer, zona ngokwazo ziya kusilela kancinci ngexesha lokusetyenziswa.
Ukongeza kokongeza izongezo, kunokwenzeka ukuthintela ukutyheli kwepolymer kwezinye izinto. Umzekelo, ukunciphisa ukusetyenziswa kwezinto kwiindawo ezishushu kakhulu nezikhanyayo zangaphandle, kuyimfuneko ukufaka i-coating efunxa ukukhanya kwizinto xa uzisebenzisa ngaphandle. Ukutyheli akuchaphazeli nje kuphela inkangeleko, kodwa kusebenza njengophawu lokuwohloka okanye ukusilela kokusebenza koomatshini bezinto! Xa izinto zokwakha zityheli, kufuneka kutshintshwe ezinye izinto ngokukhawuleza.
Ixesha lokuthumela: Disemba-20-2023