Amazi ya UV-ashobora gukosorwa kubikoresho byinganda zikoreshwa

Chimie ya Waterborne (WB) UV yerekanye iterambere ryinshi mumasoko yimbaho ​​yimbere munganda kuko ikoranabuhanga ritanga imikorere myiza, ibyuka bihumanya ikirere kandi byongera umusaruro. Sisitemu ya UV itanga umukoresha wa nyuma inyungu zokurwanya imiti idasanzwe kandi irwanya ubukana, guhangana neza kwinshi, VOC nkeya cyane hamwe nibikoresho bito bifite umwanya muto wo kubika bikenewe. Izi sisitemu zifite imitungo igereranya neza na sisitemu ebyiri zigizwe na sisitemu ya urethane idafite ingorane ziterwa no guhuza ibyago hamwe nubuzima bwinkono. Sisitemu rusange ihendutse kubera kongera umusaruro mwinshi nigiciro gito cyingufu. Izi nyungu zimwe zirashobora kugirira akamaro uruganda-rushyizwe mubikorwa hanze harimo idirishya n'inzugi z'umuryango, kuruhande nibindi bikorwa. Ibice byisoko bisanzwe bifashisha emulisiyo ya acrylic hamwe na polyurethane ikwirakwizwa kuko bifite gloss nziza kandi bigumana amabara, kandi byerekana kuramba. Muri ubu bushakashatsi, isuzuma rya polyurethane-acrylic hamwe n’imikorere ya UV ryarasuzumwe hakurikijwe inganda zishingiye ku nganda haba imbere ndetse n’inyuma zikoreshwa mu nganda.

Ubwoko butatu bwo gushingira kumashanyarazi bukoreshwa mubiti byinganda. Lacquer ya Nitrocellulose mubisanzwe ni uruvange ruke rwa nitrocellulose hamwe namavuta cyangwa alkyds ishingiye kumavuta. Iyi myenda iruma vuba kandi ifite ububengerane bwinshi. Mubisanzwe bikoreshwa mubikoresho byo guturamo. Bafite imbogamizi zumuhondo hamwe nigihe kandi zirashobora gucika intege. Bafite kandi imiti mibi irwanya imiti. Nacrocellulose lacquers ifite VOC nyinshi cyane, mubisanzwe kuri 500 g / L cyangwa irenga. Lacquers zabanjirije catalizike ni uruvange rwa nitrocellulose, amavuta cyangwa alkyds ishingiye ku mavuta, plasitike na urea-formaldehyde. Bakoresha catisale idakomeye nka fosifate ya butyl. Iyi myenda ifite ubuzima bwamezi hafi ane. Bakoreshwa mubiro, mubigo ndetse nibikoresho byo guturamo. Imirasire yabanjirije catalizike ifite imiti irwanya imiti kuruta nitrocellulose. Bafite kandi VOC ndende cyane. Guhindura varike ni uruvange rwamavuta ashingiye kuri alkyds, urea formaldehyde na melamine. Bakoresha acide ikomeye ya acide nka p-toluene sulfonique. Bafite ubuzima bw'inkono amasaha 24 kugeza 48. Zikoreshwa mu kabari k'igikoni, ibikoresho byo mu biro hamwe n'ibikoresho byo guturamo. Guhindura amarangi bifite imiterere myiza yubwoko butatu bwimyenda ishingiye kumashanyarazi ikoreshwa mubiti byinganda. Bafite VOC nyinshi cyane hamwe na forode ya forode.

Amazi ashingiye ku kwizana kwa acrylic emulisiyo hamwe no gukwirakwiza polyurethane birashobora kuba inzira nziza kubicuruzwa bishingiye kumashanyarazi kubiti bikoreshwa munganda. Emulisiyo ya Acrylic itanga imiti myiza cyane kandi ikarwanya, indangagaciro zikomeye, kuramba cyane hamwe nubushyuhe bwikirere, hamwe no gufatira hamwe kubutaka butagaragara. Bafite ibihe byumye byihuse, bigafasha abaministri, ibikoresho byo mu nzu cyangwa ibicuruzwa byubaka gukora ibice nyuma yo kubisaba. PUDs itanga uburyo bwiza bwo kurwanya abrasion, guhinduka, no gushushanya no kurwanya mar. Nibyiza kuvanga abafatanyabikorwa hamwe na acrylic emulisiyo kugirango batezimbere imashini. Emulisiyo zombi za acrylic na PUD zirashobora kwitwara hamwe na chimisties ihuza polyisocyanates, polyaziridine cyangwa karbodiimide kugirango ikore ibifuniko 2K bifite imiterere myiza.

Amazi ya UV-ashobora gukira yahindutse ibyamamare mubikorwa byinganda. Igikoni cyo mu gikoni n’ibikoresho byo mu nzu bahitamo ibyo bitwikiriye kuko bifite imbaraga zo guhangana n’ibikoresho bya mashini, ibikoresho byiza byo gukoresha hamwe n’ibyuka bihumanya cyane. Imyenda ya WB UV ifite imbaraga zo guhagarika ako kanya nyuma yo gukira, ituma ibice bisize bipfundikirwa, bipfunyika kandi bikoherezwa ku murongo w’umusaruro nta gihe cyo gutura bitera imbere. Iterambere ryokomera mububiko bwa WB UV riratangaje kandi ribaho mumasegonda. Imiti irwanya imiti ya WB UV iruta iy'ibishishwa bishingiye ku guhinduka.

WB UV itwikiriye ifite ibyiza byinshi byihariye. Mugihe 100% -solid UV oligomers mubusanzwe iba ifite ubwinshi bwubwiza kandi igomba kuvangwa nudukoko twa reaction, WB UV PUDs iba mike cyane, kandi ibishishwa birashobora guhinduka hamwe nabahindura imvugo ya WB gakondo. WB UV PUDs ifite uburemere buke bwa molekuline kandi ntabwo yubaka uburemere bwa molekile kuko ikiza kuburyo bugaragara nka 100% ikomeye ya UV. Kuberako bafite kugabanuka cyangwa kutagabanuka nkuko bikiza, WB UV PUDs ifatanye neza na substrate nyinshi. Ububengerane bwiyi myenda bugenzurwa byoroshye nibikoresho gakondo byo guhuza. Izi polymers zirashobora kuba ingorabahizi ariko nanone ziroroshye guhinduka, bigatuma ziba abakandida beza kubiti byo hanze.