Ukusetyenziswa kwe-Cellulose Ether kwi-Paint Remover

isisusi ipeyinti

Umcibisholo wepeyinti yi-solvent okanye i-paste enokuthi idibanise okanye ivuvuke ifilimu yokugubungela, kwaye iqulunqwe ngokukodwa nge-solvent enekhono elinamandla lokunyibilika, iparafini, i-cellulose, njl.

Kwishishini lokwakha iinqanawa, iindlela zoomatshini ezifana nefosholo yezandla, ukudubula ukudubula, ukudubula kwesanti, amanzi anoxinzelelo oluphezulu kunye neejethi ezinqabileyo zisetyenziselwa ukususa iingubo ezindala. Nangona kunjalo, kwiihulls ze-aluminium, iindlela zoomatshini zilula ukukrazula i-aluminium, ngoko ke eyona nto iphambili Sebenzisa i-sandpaper ukupolisha, i-stripper yepeyinti, njl njl ukususa ifilimu yepeyinti endala. Xa kuthelekiswa nesanti, ukusetyenziswa kwepeyinti yokususa ipeyinti yokususa ifilimu endala yepeyinti ineenzuzo zokhuseleko, ukukhuselwa kwendalo kunye nokusebenza okuphezulu.

Iingenelo zokusebenzisa isixhobo sokususa ipeyinti kukusebenza okuphezulu, ukusetyenziswa kwiqondo lobushushu begumbi, ukubola okuncinci kwintsimbi, ulwakhiwo olulula, akukho mfuneko yokwandisa izixhobo, kunye nobubi kukuba ezinye izinto zokususa ipeyinti zinetyhefu, ziyaguquguquka, ziyatsha kwaye zineendleko. Kwiminyaka yakutshanje, kuye kwavela iintlobo ngeentlobo zeemveliso zokususa ipeyinti, kwaye kwaveliswa nezisusa zepeyinti ezisekwe emanzini. Ukusebenza kakuhle kokususwa kwepeyinti kuye kwaphuculwa ngokuqhubekayo, kunye nokusebenza kokukhusela okusingqongileyo kuye kwaphuculwa ngokuqhubekayo. Iimveliso ezingenayo ityhefu, ezinetyhefu ephantsi, kunye nezingatshayo ziye zathatha kancinane imarike engundoqo yokususa ipeyinti.

Umgaqo wokususwa kwepeyinti kunye nokuhlelwa kwepeyinti yokususa ipeyinti

1. Umgaqo wokuqhawula ipeyinti

Umcimi wepeyinti ubukhulu becala uxhomekeke kwi-solvent ye-organic kwi-remover remover ukunyibilikisa kunye nokudumba iifilimu ezininzi zokugquma, ukuze kufezekiswe injongo yokususa ifilimu endala yokwambathisa kumphezulu we-substrate. Xa umcimi wepeyinti ungena kwi-polymer chain gap ye-polymer yokugqoka, iya kubangela ukuba i-polymer idumbe, ukwenzela ukuba umthamo wefilimu yokugubungela uya kuqhubeka nokunyuka, kunye noxinzelelo lwangaphakathi oluveliswa kukwanda komthamo wengubo. i-polymer iya kuba buthathaka kwaye ekugqibeleni, ukunamathela kwefilimu yokugqoka kwi-substrate kutshatyalaliswa, kwaye ifilimu yokugquma iphuhlisa ukusuka kwindawo efana nokudumba ukuya kwishiti, okubangela ukuba ifilimu yokugquma ibe mibimbi, itshabalalise ngokupheleleyo ukunamathela kwefilimu yokwambathisa kwi-substrate. , kwaye ekugqibeleni ifilimu yokwambathisa iyalunywa. icacile.

2. Ukwahlulahlula kwepeyinti

Abahluli bepeyinti bahlulwe baziindidi ezimbini ngokwezinto ezahlukeneyo ezenza ifilim ezisusiweyo: enye yenziwe ngezinyibilikisi eziphilayo ezifana neeketones, benzenes, neeketones, kunye nevolatilization retarder parafini, eyaziwa njengelotion emhlophe, kwaye isetyenziswa ikakhulu xa Susa. iifilimu zepeyinti ezindala ezifana ne-oyile-based, ialkyd kunye nepeyinti esekwe nitro. Olu hlobo lokususa ipeyinti ikakhulu luqulunqwe zizinyibilikisi ezithile eziguquguqukayo, ezineengxaki ezinjengokutsha kunye nobutyhefu, kwaye zingabizi kakhulu.

Esinye sisithambisi sepeyinti se-hydrocarbon esine-chlorinated enziwe nge-dichloromethane, iparafini kunye ne-ether cellulose njengezona zinto ziphambili, ezaziwa ngokuba sisisusi ipeyinti yokugungxulwa ngamanzi, ikakhulu esetyenziselwa ukususa i-epoxy asphalt, i-polyurethane, i-epoxy poly. intlaka. Inomsebenzi ophezulu wokususwa kwepeyinti, ubuthi obuphantsi kunye nesicelo esibanzi. Umcimi wepeyinti kunye ne-dichloromethane njenge-solvent ephambili iphinda ihlulwe ibe yi-neutral remover yepeyinti (pH = 7±1), i-alkaline paint remover (pH> 7) kunye ne-acidic remover yepeyinti ngokomahluko wexabiso le-pH.