Ukuvela kwemboni ye-Ettfere kuyindaba ethokozisayo eye yakhula ngokuhamba kwesikhathi ukudala imboni ngezicelo zezinguquko. Lesi sakhiwo sabizwa ngokuthi "epoxide", esagcina saziwa ngokuthi yi-epoxy ngokusihlanganisa nge-polyol noma ama-esters. Ngenkathi lokhu kuqalwa kwangempela bekunezicelo eziningi ezingokoqobo, ukusetshenziswa kwazo kuhlala kukhawulelwe ngenxa yezindleko zayo eziphakeme kanye nokuntuleka kwezinto ezitholakalayo ezingavuthiwe. Ngo-1940 abacwaningi abaningana basebenza ngokwenza ngcono ukwakheka koqobo kwe-epoxy kufaka phakathi i-Americar Richard Condon etholile ukuthi kufanele ikwenze kanjani i-pollols etholakala emikhiqizweni kaphethiloli efana ne-cyclohexan oxide kanye ne-phenol novolak resin. Ngaso leso sikhathi ososayensi baseBrithani baqala ukuzama ama-ejenti ahlukene okulashwa okufana nemithi nama-acid aphumela kumkhiqizo othuthukile ongasetshenziselwa amasu we-plywood anjenge-plywood ake aqine kunangaphambili. Ngesikhathi sokusebenza kwezempi zeMpi Yezwe II yamasosha e-Epoxies kwandise kakhulu ukudala okufunwayo kwamabanga angcono kakhulu wokumelana nokushisa okushisa, ukuvumelanisa kwamazinga okushisa, ukuvumela ukuthi bahlangabezane nezidingo ezithile ezidingekayo ezingxenyeni ezithile zokukhiqiza. Ukuthuthukiswa kwalobu buchwepheshe bese kuqhubeka kahle ngawo-1950s lapho intuthuko yenziwa khona kuzo zombili izindlela zokwenziwa ze-asbestos ezihlanganiswe ne-asbestos edala lokho manje njengoba 'rubs) noma ama-rubs). Ngasekuqaleni kweminyaka yo-1960 izinqubo ezahlukahlukene zacolisiswa kakhulu ngokwanele ukuthi izinhlelo zokukhiqiza ubuningi bezimboni zingasetshenziswa ezindabeni zezokwakha zanamuhla zisebenza ngokungezwa kwezimoto ezisetshenziswayo ngokungenisa ama-metfolies adinga ama-metlolugn adinga ama-metluolies phakathi kwabanye eceleni kwe-ceramic coating Ubuchwepheshe obubandakanya izinhlayiya zombala wedayimane obuvumela abenzi bamathuluzi wokusika ukuze bafeze amandla aphezulu kangaka ngaphambi kwamashumi amabili kuphela ngaphambi kwalesi sikhathi. Lomugqa wesikhathi ukhombisa ukuthi sifika kude kangakanani kusukela ekuqaleni kusukela ngo-1884 kufinyelela ekubukeni okubandayo okuthuthukile okuvela ngokusobala ukuthuthuka kwemvelo okugcwele ngokusobala ukuguqulwa kwemvelo okuhlobisa izizukulwane ezizayo emhlabeni jikelele.
Isikhathi sePosi: Feb-27-2023