Ukufezekisa ukunamathela olomeleleyo noluthembekileyo phakathi kwezixhobo ezahlukeneyo kusengumba ongaguqukiyo kwiinkalo zobunjineli obuhlanganisiweyo kunye nokuveliswa kweplastiki. Ngenxa yomgangatho ophantsi wamandla azo, iiplasitiki eziphezulu-ezisebenzayo{2}}ezixatyiswe ngokomelela kunye nokumelana neekhemikhali{3}}zingenamanzi kwaye zicela umngeni kwibhondi, ukuprinta, okanye idyasi. I-Delamination, inkcazo yoshicilelo engekho mgangathweni, kunye nokuncipha kwemfezeko yolwakhiwo kwiindibano ezigqityiweyo zezinye zeengxaki ezinokubakho kulo mqobo usisiseko. Ishishini lisebenzise ukusika{6}}indlela yokuguqula umphezulu wecala ukujikeleza lo mqobo. Phakathi kwezi, unyango lokukhutshelwa kwe-corona ibe yeyona teknoloji iphambili ekuphuculeni amandla okubopha imidibaniso yeplastiki, ibonelela ngesisombululo esinokwehla, esisebenzayo, kunye ne-eco{8}}.
INzululwazi yoNyango lweCorona kwiPlastikiUhlobo lonyango lwe-atmospheric plasma olubizwa ngokuba lunyango lwe-corona lusebenza ngokudala -ukukhutshwa kombane okwivoltage ephezulu kwi-electrode kunye nomqulu osekelwe phantsi ekudlula kuwo i-substrate yeplastiki. Ngaphandle kokutshintsha iimpawu zobuninzi bezinto eziphathekayo, le nkqubo iguqula ngokuphawulekayo umgangatho wezinto eziphathekayo kwinqanaba le-microscopic. Umoya ojikelezileyo u-ionized ngokukhupha, ukuvelisa i-plasma equkethe i-radicals yamahhala, i-ion, kunye nee-electron ezinamandla. Xa le plasma ingena kumphezulu weplastiki, yophula iibhondi zemolekyuli kwaye yongeza amaqela asebenzayo e-polar, ngokuyintloko i-carbonyl, i-hydroxyl, kunye namaqela e-carboxyl. Ukusebenza kweteknoloji kuxhomekeke kule nkqubo ye-oxidation. Unyango lweCorona lujika indawo enye-engangeni,{7}}engancangathi ibeyinto ephendula ngokugqithisileyo ngokunyusa umphezulu polarity kunye namandla. Ukumanzisa kwandiswe kakhulu kwiindawo ezisebenzayo ezenziwe ngamaqela asanda kuveliswa. Ngenxa yoko, iingubo, i-laminates, i-adhesives, kunye nee-inki zinokusasazeka ngokulinganayo kwaye zenze imibhobho eyomeleleyo yeekhemikhali kunye neyomzimba kunye ne-substrate yeplastiki. Uqhagamshelo olubonakalayo olulungileyo lufunyenwe kuqinisekiso lobungakanani bobudlelwane phakathi komxholo weqela elisebenzayo eliphuculweyo kumphezulu onyangweyo kunye nesiphumo samandla okubopha.
Izinto eziluncedo eziPhambili zePlastiki eziDityanisiweyoUkusetyenziswa konyango lwe-corona kubonelela ngokubonakalayo, iingenelo ezahlukeneyo ezisombulula ngqo imiba emikhulu yemveliso. Uphuculo olukhulu kumandla ebhondi yeyona nzuzo iphambili. Unyango lweCorona luqinisekisa ujongano oluthembekileyo lwezinto ezidityanisiweyo, ezithintela ukwahlulwa komaleko kunye nokwandisa ubomi bemveliso xa iiplastiki zibotshelelwa kwezinye iipholima, isinyithi, okanye amalaphu. Izicelo ezisusela kumacandelo emoto ukuya kwiilaminates zokupakisha eziguquguqukayo zixhomekeke koku. Umphezulu ophathwayo wenza kube lula ukuhombisa ukufana, imibala ecacileyo, kunye nemizobo eqaqambileyo ekushicileleni nasekugqumeni. Iphantse yazisusa ngokupheleleyo iziphene eziqhelekileyo ezibandakanya i-pinholing, i-coating delamination, kunye ne-inki ekhasayo, ethoba inkunkuma yezinto kunye neendleko zokuphinda zenziwe kwakhona. Ukufaka i-coatings esebenzayo enikezela ngezithintelo ngokuchasene neoksijini, ukufuma, okanye iimpawu ezithile zombane kufuna ukusebenza okuthe gqolo komphezulu kwiiplastiki ezisetyenziselwa ukupakishwa kokutya okanye izinto zombane. Iinkqubo zemveliso engaphakathi njengefilimu extrusion, ushicilelo, okanye imigca yokulamisa inokubandakanya ngokulula abanyangi becorona bangoku. Oku kuphelisa imfuno yenqanaba lebhetshi eyahlukileyo{8}} kwaye yenza ukuba kuqhubeke,{9}kumalungiselelo omgangatho wokubhabha, kuqinisekisa umgangatho ongaguqukiyo. Ii-thermoplastics ezininzi, ezifana ne-polyester, i-polycarbonate, i-polyolefins (i-polyethylene, i-polypropylene), kunye ne-nylon, inokusetyenziswa ngale ndlela.
Usetyenziso lwezoShishino kunye neMathiriyeli{0}}Iziphumo ezithe ngqoUnyango lweCorona luluncedo kumashishini ahlukeneyo apho imidibaniso yeplastiki ibalulekile. Kwicandelo lokupakisha, esi sesona sicelo sithandwa kakhulu. Ukuqinisekisa ukupakishwa kwemfezeko, isibheno sobuhle, kunye nokusebenza komqobo, iifilimu zepololefin (ezifana ne-PE kunye ne-PP) ziphathwa nge-aluminiyam okanye ezinye iipolymers phambi kokuprintwa okanye ukulanywa. Kwimoto kunye ne-aerospace, ukuncamathela okugqwesileyo kobuso kuyafuneka kwiicomposites ezikhaphukhaphu, ezihlala ziquka ifayibha{3}}iipholima ezomeleziweyo. Xa amacandelo aquka izinto ezifana ne-polypropylene composites ziphathwa nge-corona, ukomelela kokudibanisa kuyaqiniswa ukupeyinta kamva, ukugquma, okanye ukudityaniswa nezinye izinto. Kwimpahla kunye ne-nonwovens, i-polyester kunye ne-polypropylene yimizekelo yeendwangu ezenziwe nge-hydrophobic kwaye zinzima ukugqiba okanye ukudaya. Ukunamatheliswa kweengubo ezisebenzayo okanye i-laminates, ukukhawuleza kombala, kunye nokuthathwa kwedayi zonke ziphuculwe ngonyango lwe-corona ye-textiles okanye i-nonwovens. Kwi-electronics, ukuqinisekisa ukunamathela ngokugqibeleleyo koshicilelo lwesekethe, iingubo ezikhuselayo ezihambelanayo, kunye neelebhile, izinto ezichanekileyo ezenziwe ngeepolymers zobunjineli ezifana ne-PET okanye i-PC ziphantsi konyango lwe-corona. Kuphezulu{9}}iintsinga zokusebenza, unyango lwe-corona linyathelo elibalulekileyo ekulungiseni umphezulu wemichiza yemathiriyeli yala maxesha, efana neefilim ze-polyimide okanye i-poly(p{10}}phenylene benzobisoxazole) (PBO) iintsinga, ukwenza ukuba kubambezeleke ngamandla kwiintlaka kwizakhiwo ezidityanisiweyo{11}}amandla aphezulu. Unyango lwe-Corona lwabavoti lunokuchaphazela ukusetyenzwa kwe-rheology yomthi we-fiber / polyethylene composite, ukunciphisa i-viscosity enyibilikayo kwaye mhlawumbi kuphuculwe ukuqhubekeka, ngokophando.
Ukuphunyezwa kunye neZenzo ezilungileyoUkucwangcisa ngononophelo kuyafuneka ukuze unyango lwe-corona luphunyezwe ngempumelelo. Ukufanisa izinto ezithile zeplastiki kunye nesiphumo esijoliswe kuyo, iindlela eziphambili zibandakanya ukukhetha ubuninzi bamandla afanelekileyo, ukulungiswa kwe-electrode, kunye nesantya sonyango. Phambi -kokusasazwa okupheleleyo, kuyacetyiswa ngamandla ukuba uqinisekise useto lonyango ngokwenziwa kolingo kusetyenziswa iisampuli zemveliso. Ukongeza, ukugcina izixhobo -ukugcina i-electrode icocekile kwaye iqinisekisa umbane ophumayo{5}}kubalulekile ekufumaneni iziphumo ezithembakeleyo, ezinokuphinda ziphindaphindeke. Ukonyusa ukusebenza kwenkqubo kunye nexesha lokuphumla, abaqhubi kufuneka bafumane uqeqesho malunga nokuseta okuchanekileyo, iinkqubo zokhuseleko, kunye nokusombulula ingxaki.
UkuqukumbelaUkuphucula ukusebenza kwezinto ezidityanisiweyo zeplastiki, unyango lokukhutshwa kwe-corona luzanyiwe-kwaye{1}}lokwenyani, olusebenzayo, kunye nobuchwephesha obuyimfuneko. Amandla okumanyana okuphezulu, ukuprintwa okungcono kunye nomgangatho wokugquma, kunye nokwenyuka kokuxhomekeka kwemveliso kuwo wonke amashishini amaninzi zonke zenziwe zanokwenzeka ngokuqonda ikhemikhali yomphezulu yeeplastiki. Ukubaluleka konyango lwe-corona ekuqinisekiseni imfezeko yolwakhiwo kunye nempumelelo yokusebenza ephezulu-yokusebenza, izinto ezininzi{5}}ezihlanganisiweyo ziya kwanda kuphela njengoko imfuno yezi mathiriyeli inyuka. Ukudibanisa obu buchwephesha bokwenza kusebenze umphezulu linyathelo elibalulekileyo eliya kumgangatho kunye nokuveliswa kwezinto ezintsha kwiinjineli kunye nabavelisi abafuna ukutyhala imida yoko kunokufezwa yimidibaniso yeplastiki.