Ukusetshenziswa kwe-Self-Healing Coating Technology ku-Powder Coatings

Kusukela ngo-2017, abahlinzeki abaningi bamakhemikhali abasha abangena embonini ye-powder coating banikeze usizo olusha lokuthuthukiswa kobuchwepheshe bokugcoba impushana. Ubuchwepheshe bokuziphilisa bokuzimboza obuvela ku-Autonomic Materials Inc. (AMI) buhlinzeka ngesixazululo ekukhuleni kokumelana nokugqwala kwe-epoxy. i-powder coatings.
Ubuchwepheshe bokuziphilisa bokuzibamba busekelwe ku-microcapsule ene-core-shell structure eyakhiwe yi-AMI futhi ingalungiswa lapho ukugqoka konakalisiwe. Le microcapsule ixubene ngemuva Ekulungiseleleni inqubo yokugcoba impushana.

Uma i-epoxy powder coating eselashiwe yonakalisiwe, ama-microcapsules azophulwa futhi agcwaliswe emonakalweni. Ngokombono womsebenzi wokumboza, lobu buchwepheshe bokuzilungisa buzokwenza i-substrate ingabonakali emvelweni, futhi kusiza kakhulu ukumelana nokugqwala.

UDkt. Gerald O. Wilson, iPhini Likamongameli we-AMI Technologies, wethule ukuqhathaniswa kwemiphumela yokuhlolwa kwesifutho sikasawoti ezimbotsheni zempushana ezinama-microcapsules angeziwe nangaphandle. Imiphumela yabonisa ukuthi i-epoxy powder coating equkethe ama-microcapsules ingalungisa ngokuphumelelayo imihuzuko futhi ithuthukise ukuphikiswa kwesifutho sikasawoti. Ukuhlola kubonisa ukuthi ukumbozwa ngama-microcapsules kungakhuphula ukumelana nokugqwala izikhathi ezingaphezu kwezi-4 ngaphansi kwezimo ezifanayo zesifutho sikasawoti.
UDkt Wilson uphinde wacabangela ukuthi ngesikhathi sokukhiqizwa kwangempela kanye nokugqoka kwe-powder coatings, ama-microcapsules kufanele agcine ubuqotho bawo, ukuze kuqinisekiswe ukuthi izigqoko zingalungiswa ngokuphumelelayo ngemva kokuphulwa kokugqoka. Okokuqala, ukuze ugweme ukubhujiswa kwesakhiwo se-microcapsule ngenqubo ye-extrusion, emva kokuxuba kukhethiwe; ngaphezu kwalokho, ukuze kuqinisekiswe ukuhlakazeka okufanayo, impahla yegobolondo ehambisana nezinto ezivamile zokugqoka i-powder yaklanywa ngokuqondile; ekugcineni, igobolondo futhi kubhekwe ukuzinza lokushisa eliphezulu, Gwema ngokuhlaziya ngesikhathi bafudumeza.
Ukubaluleka kwalobu buchwepheshe obusha ukuthi bunikeza ukuthuthuka okuhle kakhulu ekumelaneni nokugqwala ngaphandle kokusebenzisa izinsimbi, i-chromium ene-hexavalent, noma ezinye izinhlanganisela eziyingozi. Lezi zembatho azigcini nje ngokuba nezakhiwo zokuqala ezamukelekayo, kodwa futhi zinikeza izakhiwo ezinhle kakhulu zokuvinjelwa ngisho nangemva komonakalo omkhulu ku-substrate.