Okumhlophe, okukhanyayo, okulula, futhi okumsulwa, okufanekisela ubumsulwa.
Abantu abaningi bathanda izinto ezimhlophe, futhi izimpahla zabathengi zivame ukwenziwa zabamhlophe. Imvamisa, abantu abathenga izinto ezimhlophe noma ukugqoka izingubo ezimhlophe kuzoqikelela ukuthi bangavumeli abamhlophe ukuba bathole amabala. Kepha kukhona i-lyric ethi, "Kulesi simo sezulu manjalo, wenqaba kuze kube phakade." Akunandaba noma ngabe ulukhuni kangakanani ekulondolozeni lezi zinto ekungcolisweni, zizoshintsha kancane kancane ziphuzi. Kwaphela isonto lonke, unyaka, noma iminyaka emithathu, ugqoka icala le-heachnefono ukuze usebenze nsuku zonke, futhi ihembe elimhlophe awukaze ugqoke ekhabethe buthule buphenduka ophuzi ngokwakho.
Eqinisweni, ukuphuzi kwemicu yezingubo, amasolo ezicathulweni ze-elastic, namabhokisi e-headphone epulasitiki kuwukubonakaliswa kokuguga kwe-polymer, okwaziwa ngokuthi aphuzi. Uphuzi ubhekisa emcimbini wokuwohloka, ukuhlela kabusha, noma ukuxhumeka ku-molecule yemikhiqizo ye-polymer ngesikhathi sokusetshenziswa, okubangelwa ukushisa, ukukala imisebe, nezinye izinto, okuholela ekwakhekeni kwamaqembu athile asebenzayo anemibala.
Lawa maqembu anemibala avame ukuba amabhobon carbon Double Bonds (C = c), amaqembu e-carbonyl (c = o), amaqembu e-IMIne (c = n), njalonjalo. Lapho inani lama-Carbon Carbon Double Bonds lifinyelela ku-7-8, zivame ukubonakala ziphuzi. Imvamisa, lapho uqaphela ukuthi imikhiqizo ye-polymer iqala ukuphenduka ophuzi, izinga lokuphuzi livame ukwanda. Lokhu kungenxa yokuthi ukuwohloka kwama-polymers kuyinto ukusabela kwe-chain, futhi uma inqubo yokuhlanza iqala, ukwephulwa kwamaketanga amangqamuzana kufana ne-domino, ngeyunithi ngayinye ewela ngamunye ngamunye.
Kunezindlela eziningi zokugcina impahla ibe mhlophe. Ukungeza i-titanium dioxide kanye nama-fluorescent whendening agents angathuthukisa ngempumelelo umphumela owumhlophe wezinto ezibonakalayo, kepha ayikwazi ukuvimba okukodwa kusuka kuphuzi. Ukuze wehlise umoya ophuzi wama-polymers, abaqinisi abakhanyisiwe, abathathi abakhanyayo, abaqediwe, bangezelelwa. Lezi zinhlobo zezengezo zingadonsa amandla athwalwa ukukhanya kwe-ultraviolet ngokukhanya kwelanga, ukuletha i-polymer emuva esimweni esizinzile. Futhi ama-anti thermal oxidants angabamba ama-radicals wamahhala akhiqizwe i-oxidation, noma avimbe ukuwohloka kwamaketanga we-polymer ukuqeda ukusabela kwe-polymer chain deoxvation. Izinto zokwakha zinempilo yempilo, futhi izengezo nazo zinempilo yonke. Yize izengezo zinganciphisa ngempumelelo izinga le-polymer eliphuzi, bona uqobo bazohluleka kancane ngesikhathi sokusetshenziswa.
Ngaphezu kokungeza izengezo, kungenzeka futhi ukuvikela i-polymer iphuzi kwezinye izici. Isibonelo, ukunciphisa ukusetshenziswa kwezinto zokwakha okushisa okuphezulu nezindawo ezikhanyayo zangaphandle, kuyadingeka ukufaka ukuhlanganiswa kokukhanya okukhanyayo kwezinto zokwakha lapho zisebenzisa ngaphandle. I-Yellowling ayinakuthinta kuphela ukubukeka, kepha futhi isebenza njengesibonakaliso sokuwohloka kokusebenza kwemishini noma ukwehluleka! Lapho izinto zokwakha ziye ziphuzi, kufanele kuthathelwe indawo lapho kuthathelwa indawo ngokushesha okukhulu.
Isikhathi sePosi: Dec-20-2023