Kushandiswa kweCellulose Ether muPaint Remover

pendi remover

Iyo pendi inobvisa inonyungudutsa kana paste inogona kunyungudutsa kana kuzvimba firimu rekuputira, uye rinonyanya kuumbwa nesolvent ine simba rekunyungudutsa simba, parafini, cellulose, nezvimwe.

Muindasitiri yekuvaka ngarava, nzira dzemagetsi dzakadai sefoshoro yemaoko, kuputika kwepfuti, kuputika kwejecha, kudzvanywa kwemvura uye majeti abrasive anonyanya kushandiswa kubvisa machira ekare.Zvisinei, kune aruminiyamu hulls, mechanical nzira dziri nyore kukwenya aruminiyamu, saka chikuru Shandisa sandpaper kupusha, pendi stripper, etc. kubvisa yekare pendi firimu.Kuenzaniswa nejecha, kushandiswa kwependi kubvisa kubvisa firimu rekare repende rine zvakanakira kuchengeteka, kuchengetedzwa kwezvakatipoteredza uye kushanda kwakanyanya.

Zvakanakira kushandisa pendi yekubvisa ndeyekunyanya kushanda zvakanaka, kushandiswa patembiricha yekamuri, kushomeka kwesimbi kusimbi, kuvaka kuri nyore, hapana chikonzero chekuwedzera michina, uye chakashata ndechekuti zvimwe zvinobvisa pendi zvine muchetura, zvinoputika, zvinopisa, uye zvinodhura.Mumakore achangopfuura, zvakasiyana-siyana zvezvitsva zvekubvisa pendi zvakabuda, uye mvura inobvisa pendi yakagadzirwa zvakare.Kubudirira kwekubvisa pendi kwave kuenderera mberi nekusimudzirwa, uye kuchengetedzwa kwezvakatipoteredza kwagara kuchivandudzwa.Zvigadzirwa zvisina muchetura, zvakaderera-muchetura, uye zvisingabatike zvakatora zvishoma nezvishoma mumusika mukuru wekubvisa pendi.

Nheyo yekubvisa pendi uye kupatsanurwa kwependi inobvisa

1. Nheyo yekubvisa pendi

Iyo pendi inobvisa inonyanya kutsamira pane iyo organic solvent mupendi inobvisa kunyungudutsa uye kuzvimba mafirimu mazhinji ekuputira, kuitira kuti azadzise chinangwa chekubvisa firimu rekuvhara rekare pamusoro peiyo substrate.Kana iyo inobvisa pendi inopinda mukati mepolymer cheni gap yepolymer yekuputira, ichaita kuti iyo polymer iwedzere, kuitira kuti huwandu hwefirimu rekuputira hurambe huchiwedzera, uye kushushikana kwemukati kunokonzerwa nekuwedzera kwehuwandu hwekupfeka. polymer ichapera simba uye Pakupedzisira, kusungirirwa kwefirimu yekuputira kune substrate kunoparadzwa, uye firimu rekuputira rinokura kubva pakuzvimba-kufanana nekuzvimba kusvika pakuzvimba kwepepa, zvichiita kuti firimu rekuputira riwunya, richiparadza zvachose kunamatira kwefirimu yekuputira kune substrate. , uye pakupedzisira firimu rekuputira rinorumwa.clear.

2. Kurongeka kwekubvisa pendi

Paint strippers yakakamurwa kuita mapoka maviri zvichienderana neyakasiyana-siyana yekugadzira firimu zvinhu zvakabviswa: imwe inogadzirwa neorganic solvents senge ketones, benzenes, uye ketones, uye volatilization retarder paraffin, inowanzozivikanwa sewhite lotion, uye inonyanya kushandiswa kubvisa. mafirimu ependi ekare akadai semafuta-based, alkyd uye nitro-based paints.Rudzi urwu rwekubvisa pendi rinonyanya kuumbwa nezvimwe zvinonyungudutsa organic zvinonyungudutsa, zvine matambudziko akadai sekupisa uye huturu, uye zvakachipa.

Imwe yacho ndeye chlorinated hydrocarbon pendi inobvisa yakagadzirwa ne dichloromethane, paraffin uye cellulose ether sechinhu chikuru, chinozivikanwa semvura inoyerera pendi inobvisa, inonyanya kushandiswa kubvisa epoxy asphalt, polyurethane, epoxy poly Yakarapwa ekare ekuvhara mafirimu senge phthalamide kana amino alkyd. resin.Iyo ine yakakwirira pendi yekubvisa kunyatsoita, yakaderera toxicity uye yakafara application.Iyo pendi inobvisa ine dichloromethane sechinhu chikuru chinonyungudutsa chakakamurwawo kuita neutral pendi inobvisa (pH = 7±1), alkaline pendi inobvisa (pH> 7) uye acidic pendi inobvisa zvinoenderana nemusiyano we pH kukosha.