Ukuqulunqwa kwefilimu yeibhodi eqatywe ngombalaukutyabeka ikakhulu kubandakanya imiba emibini: ukuncamathelisa ukutyabeka kunye nokomisa ukomisa.
Ukuncamatheliswa kwebhodi eqatywe ngombala
Isinyathelo sokuqala sokubambelela phakathi kwe-substrate strip yentsimbi kunye nokwaleka kukumanzisa kwebhodi egqunywe ngombala kwi-substrate surface.Ukumanzisa okugqumayo kunokutshintsha umoya kunye namanzi afakwe kuqala kumphezulu wentsimbi.Ngexesha elifanayo, ukuchithwa kwe-solvent kwi-substrate surface kukhokelela ekuchithweni okanye ekudumbeni.Ukuba i parameters solubility of the film-forming resin of the color coated board coating and the substrate surface zikhethwe ngokufanelekileyo, iya kwenza umaleko immiscible phakathi umbala coated ibhodi substrate umphezulu kunye nefilimu yokwaleka, Oku kubalulekile ukuba adhesion elungileyo ukutyabeka.
Ukomiswa kweBibhodi eqatywe ngombalaukutyabeka
Ukwakhiwa kokuncamatheliswa kombala webhodi egqunywe ibhodi igqibezela kuphela inyathelo lokuqala lokwakheka kwefilimu yokwaleka kwinkqubo yokwaleka yebhodi eqatywe umbala, kunye nenkqubo yokuba yifilim eqinileyo eqhubekayo kufuneka iqhubeke, enokugqiba yonke inkqubo yokwakheka kwefilimu yokwaleka.Inkqubo yokutshintsha ukusuka "kwifilimu emanzi" ukuya "kwifilimu eyomileyo" idla ngokubizwa ngokuthi "ukomisa" okanye "ukunyanga".Le nkqubo yokomisa kunye nokunyanga iyona nto ingundoqo yenkqubo yokwenza ifilimu yokugqoka.Iingubo ezineefom ezahlukeneyo kunye neengqungquthela zineendlela zabo zokwenza ifilimu, ezichongwa yimpahla yezinto zokwenza ifilimu ezisetyenziselwa ukugqoka.Ngokwesiqhelo, sahlulahlule inkqubo yokwenza ifilimu yokwaleka ngokweendidi ezimbini:
(1) Ayinanguquko.Ngokubanzi, ibhekisa kwindlela yokwenza ifilimu yenyama, exhomekeke ikakhulu ekuguqukeni kwezinyibilikisi okanye eminye imithombo yeendaba esasazwayo kwifilimu yokwambathisa, ngokuthe ngcembe ikhulisa i-viscosity yefilimu yokugquma kunye nokwenza ifilimu eqinileyo yokugquma.Ngokomzekelo, iingubo ze-acrylic, iingubo zerubha ezikloriniweyo, iingubo ze-ethylene, njl.
(2) Utshintsho.Ngokubanzi, ibhekisa kukwenzeka kweekhemikhali ngexesha lenkqubo yokwenza ifilim, kwaye ukugquma kuxhomekeke ikakhulu kutshintsho lwekhemikhali ukwenza ifilimu.Le nkqubo yokwenza ifilimu ibhekisela kwi-polymerization yezinto ezenza ifilimu kwiingubo, ezibizwa ngokuba yi-polymers, emva kokusetyenziswa.Kunokuthiwa yindlela ekhethekileyo ye-polymer synthesis, elandela ngokupheleleyo indlela yokusabela ye-polymer synthesis.Ngokomzekelo, iingubo ze-alkyd, i-epoxy coatings, i-polyurethane i-coatings, i-phenolic coatings, njl njl. Nangona kunjalo, iingubo ezininzi zanamhlanje azenzi iifilimu ngendlela enye, kodwa zithembele kwiindlela ezininzi ekugqibeleni zenze iifilimu, kwaye i-coil coil luhlobo oluqhelekileyo lwefilimu oluxhomekeke kwiindlela ezininzi ekugqibeleni zenze iifilimu.
Ixesha lokuposa: Jun-02-2023