Ukuba yiresin esebenzayo ephezulu, epoxy resin iye yasetyenziswa kakhulu kwiinkalo ezininzi zobomi. Ngenxa yokubambelela okukhulu, ukuxhathisa okukhulu kwe-corrosion, iimpawu ezinamandla zoomatshini, kunye nokumelana nokushisa okukhulu, ngoku yinto efanelekileyo kwindawo yokukhusela i-coating. Kwimigangatho emininzi, inokubonelela ngesigqubuthelo esomeleleyo nesihlala ixesha elide ukukhusela i-substrate ekunxityweni koomatshini, ukubola kweekhemikhali kunye nokuguquguquka kobushushu. Nokuba yintsimbi, ikhonkrithi, umthi, iplastiki kunye neminye imiphezulu, inokubonelela ngokhuselo olululo lokwandisa ubomi bayo benkonzo kwindawo enobutshaba.
Nangona iqhuba kakuhle kakhulu ekukhuselweni kokugquma, ukusebenziseka kwayo kusaxhomekeke kwimeko yesicelo esithile, iimeko zomphezulu kunye neendlela zobugcisa. Ngenxa yoko, ukhetho kunye nokusetyenziswa kwe-epoxy resin kuxhomekeke ekuqondeni iimpawu zayo kunye neenzuzo kunye nemida ekukhuseleni ukugquma.
Iimpawu kunye neenzuzo ze-epoxy resin kwinqanaba elisisiseko
Amaqela e-epoxy adibanisa umnqamlezo kunye nee-hardeners ngokusebenzisa i-chemical reactions ivelisa i-resin yokwenziwa. Iimpawu zayo eziphambili zinamandla amakhulu, ukuxhathisa ukubola kweekhemikhali, ukunamathela okukhulu, ukufakwa kombane okuphezulu, kunye nokuzinza okuqinileyo kwe-thermal. Ukulandela ukunyanga, kunokubonelela ngesakhiwo sothungelwano esine-dimensional eyomeleleyo emithathu edityaniswe ngomnqamlezo kunye nokuxhathisa okugqwesileyo kwe-tensile, ukuxhathisa ukunxiba, kunye nokumelana noxinzelelo lwemathiriyeli.
I-epoxy resin ineenzuzo ezicacileyo kakhulu malunga nokukhusela ukugquma. Okokuqala, inokwakha i-homogeneous coating kunye nokunamathela ngokuqinileyo kumphezulu we-substrates ezininzi, kubandakanya isinyithi, ikhonkrithi, iinkuni kunye nezinye iindawo. Okwesibini, ibonisa ubulukhuni obukhulu kunye nokuqina ngexesha lokunyanga, okuya kunceda ukujamelana ngokwaneleyo nempembelelo yomzimba, imikrwelo kunye nokukrala. Ekugqibeleni, ukuxhathisa kweekhemikhali ze-epoxy resin kuyinceda ukuxhathisa ukukhukuliseka kwezinto ezininzi ezibandakanya i-acids, i-alkalis, ityuwa, i-solvents, njl., ngaloo ndlela yandisa ubomi benkonzo ye-substrate.
Isicelo ekukhuseleni ukubola
Isetyenziswa kakhulu kwi-domain ye-anti-corrosion protection. Izinto eziqhelekileyo zomhlwa kushishino lulwakhiwo lwesinyithi, ngakumbi kwiindawo ezidla ngokugqithisileyo ezifana neelwandle, izityalo zemichiza, kunye namaqonga e-oyile, apho umphezulu wesinyithi ufuna ukhuseleko oluthile. Ukugquma kunokuthintela ukugqwala, i-oxidation kunye nezinye iziganeko ze-corrosion kunye nokwahlula ngokufanelekileyo isinyithi ekudibaneni nomswakama, i-oksijini kunye nezinye izinto ezidliwayo. Ngokukodwa kumphezulu weemveliso zetsimbi ezifana nobhedu, i-aluminium alloy, kunye nentsimbi, i-coating ayinakho ukubonelela ngokhuseleko lomzimba kuphela kodwa yandisa ixesha lokuphila kwezi zixhobo zetsimbi.
Kwimekobume yaselwandle, umzekelo, iinxalenye zentsimbi ezibandakanya amaqonga e-oyile enxweme kunye neenqanawa zihlala ziphantsi kwamanzi anetyuwa, ukufuma, iasidi kunye neekhompawundi zealkaline. Ukwaleka kunokonga kakhulu iindleko zokuyilungisa kunye nokutshintsha kwakhona kunye nokunqanda ngokufanelekileyo amanzi etyuwa ukuba angonakalise umphezulu wesinyithi. Kwicandelo leekhemikhali, imigodi kunye namandla ngokunjalo, inokubonelela ngokhuseleko lwexesha elide lokuchasana nomhlwa.
Isenzo sokukhusela kwikhonkrithi
Akunjalo kuphela kwizixhobo zetsimbi kodwa isetyenziswe ngokubanzi ekugcinweni kwezakhiwo eziphathekayo. Ixesha elide, indawo yekhonkrithi iphantsi komswakama, i-asidi, i-alkali kunye nezinye iikhemikhali, ezibangela ukubola kunye nokukhupha. Ngokusebenzisa umaleko okhuselekileyo okhuselayo, ukugquma kunokunceda ikhonkrithi ukumisa ukungena kokufuma, iikloridi kunye nee-agent ezitshabalalisayo zeekhemikhali, kunye nokunciphisa isantya sekhonkrithi yokuthotywa.
Iindlela, iibhulorho, iitonela, izakhiwo ezingaphantsi komhlaba, kunye nezinye iiprojekthi zokwakha zonke zixhomekeke ekungangeni kwamanzi kunye nokuthintela ukubola ukuze kwandiswe ubomi bekhonkrithi. I-Epoxy resin yeyona nto ifanelekileyo yokuthintela amanzi kunye nokuchasana nokubola kwicandelo lokwakha ngenxa yokuchasana nokungena kunye neempawu zokutywinwa. Ngaphaya koko, ukukhusela umphezulu wekhonkrithi kwingozi yasemzimbeni ngamandla amakhulu kunye nokumelana nokunxiba kwesigqubuthelo.
Sebenzisa ekugcinweni kweenkuni
Nangona umthi uyinto yendalo enobuchule obugqwesileyo kunye nenkangeleko, ukufuma, izinambuzane, ukubola, kunye nemitha ye-UV idla ngokuba nefuthe ekunyamezeleni kwayo. Yinto yokukhusela i-premium yokukhusela eya kunceda ubomi benkonzo yokhuni bandiswe. I-epoxy resin efakwe kumphezulu womthi ayinyusi nje ukuxhathisa kwayo kwe-UV kunye nokungangeni kwamanzi kodwa ikwabonelela ngokhuseleko oluthile lokuchasana nokubola.
Ukugquma kunokunciphisa ukungena kwamanzi kunye nokuhlasela kwezinambuzane, ukuseka umaleko oqinileyo wokukhusela ngokungena kwimicu yomthi, kwaye uncede umthi ukuba uqhekeke kwaye ukhubazeke kancinci. Ukwaleka kwe-epoxy resin kunokubonelela ngokhuseleko oluhlala ixesha elide kumaplanga ngakumbi kwimpahla yeplanga efana nefenitshala yangaphandle, iidekhi zeenqanawa, kunye namakhaya amaplanga ekufuneka asoloko evezwe kwindawo engaphandle.
Ukumelana nobushushu kunye nemozulu
Kwiimeko ezithile, ukumelana nobushushu kunye nokuchasana kwemozulu nako kudlala umsebenzi omkhulu wokukhusela. Ngokuqhelekileyo iqhuba kakuhle phantsi kokutshintsha kweqondo lokushisa phakathi kwe-60 ° C kunye ne-150 ° C, i-epoxy resin eqhelekileyo inokunyamezela ukushisa okuphezulu ngaphakathi koluhlu oluthile. I-epoxy resins eyenzelwe ngokukodwa, emva kokuguqulwa, inokunyusa ukuxhathisa ubushushu kwaye inyamezele iimeko eziphezulu zokushisa, ezenza ukuba zisetyenziswe ngokubanzi ekukhuseleni ukugquma kwimimandla yeemoto, inqwelomoya, i-elektroniki kunye nezixhobo zombane.
Ngaphaya koko, ukuxhathisa kwe-epoxy resin kwizinto kuqinisekisa ukuthembeka kwayo kwindawo engaphandle. Nangona ukuxhathisa kwimitha ye-UV kuthobile ngandlel' ithile, amandla ayo okuxhathisa imitha ye-UV inokuphuculwa ngokusetyenziswa kwefomula efanelekileyo ukuze ikwazi ukudlala umsebenzi wokukhusela ixesha elide kwiindawo ezinokukhanya kwelanga okuphezulu kunye nokwahluka okukhulu kobushushu.
Iindlela zokusebenzisa i-coatings:
Ngelixa ukhuseleko lokugquma luneenzuzo ezininzi, iingxaki ezininzi kusafuneka ziqwalaselwe ngexesha lokusetyenziswa kwayo. Okokuqala, inkqubo yokunyanga i-epoxy resin ibandakanya iindlela ezithile zobushushu kunye nokufuma. Isenzo sokuphilisa i-epoxy resin siya kuchaphazeleka ngubushushu obuphantsi kakhulu kunye nomswakama ophezulu kakhulu; nokuba, ezi zinto ziya kuvelisa umphezulu amaqamza yokwambathisa okanye ukungalingani. Okwesibini, ubukhulu be-epoxy resin kufuneka bube phantsi kolawulo. Ukwaleka okungqindilili kakhulu kunokubangela ukungonelanga konyango, ngoko ke kuphembelela ukubambelela kwayo kunye nokomelela kwayo.
Ngaphandle koko, ukulungiswa komphezulu kufuna imigangatho engqongqo. Ukuqinisekisa ukuthotyelwa kwe-epoxy resin coating, umphezulu we-substrate kufuneka uqale ungabi ne-rust, ucoceke kwaye ungabi nagrisi. Ukuqinisekisa umgangatho wokugquma, kubalulekile ukuphelisa ukuphazamiseka kokungcoliswa kwendalo ngexesha lokwakhiwa kwayo.
Ukulondolozwa nokukhuseleka kwendalo
Nangona le nto iyinto ephezulu yokusebenza, ugxininiso lwabantu luye lwahlala luhlala luhlala lukhusela ukhuseleko lokusingqongileyo kunye nokhuseleko. I-epoxy resin yemveli ibandakanya izinyibilikisi kunye neekhompawundi ezithile eziguquguqukayo eziphilayo (VOCs), ngoko ke ukusebenzisana kwexesha elide kunokubangela iingxaki zempilo kumzimba womntu. Ngenxa yoko, amanyathelo afanelekileyo okukhusela kufuneka alandelwe kuyo yonke inkqubo yokwakha yokugquma: ukunxiba iimaski, iiglavu, kunye nokugcina umoya ophuma kakuhle.
Njengoko ulwazi lokusingqongileyo lukhula kwiminyaka yamva nje, ngakumbi nangakumbi i-VOC ephantsi ye-epoxy resin imveliso yaqala ukubonakala. Ezi resin ze-epoxy ezinobuhlobo ngokwendalo aziyonakalisi ngandlel’ ithile kokusingqongileyo kunye nomzimba womntu kwaye zinceda ukuthoba ukukhutshwa kweekhompawundi eziyingozi. Ukukhetha i-epoxy resins ehambelana nokusingqongileyo ayihambelani kuphela kwindlela yophuhliso oluzinzileyo kodwa inceda ukunyusa ukhuseleko lwendawo yokwakha.
I-Epoxy resin isetyenziswe kakhulu kumacandelo ahlukeneyo njengesixhobo sokukhusela ngenxa yokunamathela kwayo okukhulu, ukuxhathisa ukubola, ukuxhathisa ukunxiba, kunye nokumelana nobushushu. I-Epoxy resin ineenzuzo ezikhethekileyo nokuba ikwi-anti-corrosion, unyango lwekhonkrithi, ukukhuselwa komthi, okanye kubushushu obuphezulu kunye neendawo ezingqongileyo zokufuma. Ukuqinisekisa impembelelo kunye nokuqina kwexesha elide lokugquma, nangona kunjalo, kubalulekile ukuqwalasela iimeko zesakhiwo kunye neendlela zokusingqongileyo ze-epoxy resin.
Ifomula kunye nokusebenza kwe-epoxy resin zikhula ngokuqhubekayo njengoko isayensi kunye nobuchwepheshe buhambela phambili; ukwaziswa kobume bendalo epoxy resin ibonise amathemba okusebenzisa amatsha. Kuya kuhlala kubalulekile kwindawo yokukhusela i-coating ukuya phambili kwaye ibonelele ngezinto ezahlukeneyo ezinamandla, ezihlala ixesha elide.