Mudziyo wePendi Mudziyo wePendi weSuper Paint/mudziyo wependi

 Mudziyo wePendi Mudziyo wePendi weSuper Paint/mudziyo wependi

Zvimiro:

l Mudziyo wekubvisa pendi unochengetedza nharaunda

l Isina ngura, shandisa zvakachengeteka uye shanda zviri nyore

l Haina acid, benzene nezvimwe zvinhu zvinokuvadza

l Inogona kushandiswazve nekuchenesa firimu rependi uye slag yependi mumushonga

l Inogona kubvisa phenolic resin, acrylic, epoxy, polyurethane finishing pendi uye premier pendi nekukurumidza

 

Maitiro ekushandisa:

l Chitarisiko: Mvura isina ruvara kusvika kushava yakajeka

l Nzira yekurapa: Kunyudza

l Nguva yekurapa: 1-15min

l Kurapa tembiricha: 15-35℃

l Mushure mekurapwa: Sukurudza firimu rependi rezvisaririra uchishandisa mvura ine simba rakawanda

Cherechedza:

1. Kungwarira

(1) Zvinorambidzwa kuibata zvakananga pasina dziviriro yekudzivirira;

(2) Pfeka magirovhosi ekuchengetedza uye magogorosi usati waashandisa

(3) Chengeta kure nekupisa, moto uye chengeta munzvimbo ine mumvuri, ine mhepo inofefetera

2. Matanho ekubatsira kwekutanga

1. Geza nemvura yakawanda nekukasika, kana zvikasvikwa paganda nemaziso. Wobva wabvunza chiremba nekukurumidza.

2. Inwa mvura inosvika 10% sodium carbonate nekukasika, kana ukamedza pendi. Wobva wabvunza chiremba nekukurumidza.

 

Kushandiswa:

l Kabhoni simbi

l kwakakurudzira bepa

l Aruminiyamu chiwanikwa

l Magnesium chiwanikwa

l Mhangura, girazi, huni uye mapurasitiki nezvimwewo

 

Pakeji, nzvimbo yekuchengetera uye kutakurwa:

l Inowanikwa mu 200 kg/bharero kana 25 kg/bharero

Nguva yekuchengetera: ~mwedzi gumi nemiviri mumidziyo yakavharwa, ine mumvuri uye yakaoma

Kubvisa pendi uye plasticizer

Kubvisa pendi uye plasticizer

sumo

Parizvino, kugadzirwa kwemuchina wekubvisa pendi muChina kuri kukurumidza zvikuru, asi kuchine mamwe matambudziko, akadai sechepfu yakawanda, mhedzisiro yekubviswa kwependi isingagutsi uye kusvibiswa kwakakomba. Hunhu hwepamusoro, huwandu hwetekinoroji yepamusoro uye zvigadzirwa zvine kukosha kwakanyanya zvishoma. Mukugadzirira muchina wekubvisa pendi, wakisi yeparafini inowanzowedzerwa, kunyangwe ichigona kudzivirira musanganiswa kuti usakurumidze kupisa, asi mushure mekubviswa kwependi, wakisi yeparafini inowanzo gara pamusoro pechinhu chinofanira kupendwa, saka zvakakosha kubvisa wakisi yeparafini zvachose, nekuda kwemamiriro akasiyana epamusoro pekupenda, zvichiita kuti zvive zvakaoma kubvisa wakisi yeparafini, izvo zvinounza kusagadzikana kukuru kune coating inotevera. Pamusoro pezvo, nekufambira mberi kwetekinoroji nebudiriro yemagariro, vanhu vari kuwedzera kuziva nezvekuchengetedzwa kwezvakatipoteredza uye vane zvinodiwa zvepamusoro zvemuchina wekubvisa pendi. Kwemakore mazhinji, indasitiri yependi yanga ichiedza kuderedza kushandiswa kwemuchina wekubvisa pendi. Zvisinei, muchina wekubvisa pendi wakakosha zvikuru pakupenda muchina wekubvisa pendi, saka kusarudzwa kwemuchina wekubvisa pendi kwakakosha zvikuru. Chinyorwa 612 cheGerman Technical Specification (TRGS) chagara chichirambidza kushandiswa kwezvipfeko zvependi zvemethylene chloride kuitira kuderedza njodzi dzebasa. Chinonyanya kukosha ndechekuti vagadziri vependi dzemethylene chloride vanoramba vachishandisa zvipfeko zvependi zvechinyakare nevagadziri vependi vasingatarisi kuchengetedzeka kwenzvimbo yekushanda. Masisitimu epamusoro-soro neakavakirwa mumvura ndiwo sarudzo dzekuderedza huwandu hwezvinhu zvinonyungudutsa uye kugadzira chigadzirwa chakachengeteka kushandisa. Saka, zvipfeko zvependi zvine hushamwari uye zvinoshanda mumvura zvichave nzira yekufambira mberi kune vanobvisa pendi. Zvipfeko zvependi zvemhando yepamusoro, zvepamusoro-soro zvine huwandu hwakawanda zvinovimbisa zvikuru.

Pukuta gadzirisa ndima iyi mhando dzependi dzinobvisa pendi

1) Muchina wekubvisa pendi yealkaline

Muchina wekubvisa pendi yeAlkaline unowanzova nezvinhu zvine alkaline (sodium hydroxide, soda ash, water glass, nezvimwewo), ma surfactants, corrosion inhibitors, nezvimwewo, zvinodziiswa kana zvichishandiswa. Kune rumwe rutivi, alkali inosanganisa mamwe mapoka ari mupendi uye inonyungudika mumvura; kune rumwe rutivi, hot steam inobika coating film, zvichiita kuti irasikirwe nesimba uye inoderedza kunamira kwayo kusimbi, iyo, pamwe chete nemhedzisiro yekupinda kwe surfactant, kupinda uye kubatana, pakupedzisira inokonzera kuti coating yekare iparare. Inodzima.

2) Chinhu chinobvisa pendi ine asidhi.

Acid paint stripper imhando yependi inoumbwa nemaacid akasimba akadai se concentrated sulfuric acid, hydrochloric acid, phosphoric acid uye nitric acid. Nekuti concentrated hydrochloric acid ne nitric acid zvinoputika nyore nyore uye zvinogadzira acid mhute, uye zvine corrosive effect pa simbi substrate, uye concentrated phosphoric acid inotora nguva yakareba kuti pendi iome uye ine corrosive effect pa substrate, saka, maacid matatu ari pamusoro haawanzo shandiswa kuomesera pendi. Concentrated sulfuric acid nealuminium, iron nedzimwe simbi passivation reaction, saka ngura yesimbi idiki kwazvo, uye panguva imwe chete ine carbonization yakasimba uye sulfonation yezvinhu zvipenyu uye inoita kuti inyunguduke mumvura, saka concentrated sulfuric acid inowanzo shandiswa mu acid paint stripper.

3) Chinhu chinowanzo shandiswa pakubvisa pendi inonyungudutsa

Muchina wekubvisa pendi we solvent unoumbwa nemusanganiswa we organic solvent ne paraffin, zvakaita se T-1, T-2, T-3 paint stripper; Muchina wekubvisa pendi we T-1 unoumbwa ne ethyl acetate, acetone, ethanol, benzene, paraffin; T-2 inoumbwa ne ethyl acetate, acetone, methanol, benzene nezvimwe zvinonyungudutsa ne paraffin; T-3 inoumbwa ne methylene chloride, plexiglass, plexi-glass nezvimwe zvinonyungudutsa. Ethanol, paraffin wax, nezvimwewo zvakasanganiswa, zvine chepfu shoma, uye zvine simba rekubvisa pendi. Zvine simba rekubvisa pendi pa alkyd paint, nitro paint, acrylic paint ne perchloroethylene paint. Zvisinei, organic solvent iri mumhando iyi yemuchina wekubvisa pendi inoshanduka-shanduka, inobvira moto uye ine chepfu, saka inofanira kuiswa munzvimbo ine mhepo inofefetera zvakanaka.

4) Muchina wekubvisa pendi une chlorine hydrocarbon solvent

Muchina wekubvisa pendi une chlorine hydrocarbon solvent unogadzirisa dambudziko rekubvisa pendi ye epoxy ne polyurethane coatings, uri nyore kushandisa, unoshanda zvakanyanya uye haukuvadzi simbi zvakanyanya. Zvikuru zvinoumbwa nezvinhu zvinonyungudutsa (zvinowanzo shandiswa kugadzira pendi zvinoshandisa methylene chloride sechinhu chinonyungudutsa, nepo zvinowanzoshandiswa kugadzira pendi zvemazuva ano zvinowanzoshandisa zvinhu zvinonyungudutsa zvine mwero, zvakaita sedimethylaniline, dimethyl sulfoxide, propylene carbonate neN-methyl pyrrolidone, pamwe chete nealcohols nezvinonyungudutsa zvine mwero, kana pamwe chete nehydrophilic alkaline kana acidic systems), zvinhu zvinonyungudutsa zvine mwero (zvakaita semethanol, ethanol neisopropyl alcohol, nezvimwewo). Zvinoita kuti pave nezvinhu zvinonyungudutsa zvine mwero ( zvakaita sephenol, formic acid kana ethanolamine, nezvimwewo), zvinonyungudutsa zvine mwero ( zvakaita sepolyvinyl alcohol, methyl cellulose, ethyl cellulose nefumed silica, nezvimwewo), zvinodzivisa kupisa ( zvakaita separaffin wax, ping ping, nezvimwewo), zvinonyungudutsa zvine mwero ( zvakaita seOP-10, OP-7 nesodium alkyl benzene sulfonate, nezvimwewo), zvinodzivirira ngura, zvinodzivirira kupinda, zvinonyungudutsa zvine mwero uye thixotropic agents.

5) Muchina wekubvisa pendi unobva mumvura

MuChina, vaongorori vakabudirira kugadzira muchina wekubvisa pendi uchishandisa mvura vachishandisa benzyl alcohol pachinzvimbo chedichloromethane semushonga mukuru. Kunze kwebenzyl alcohol, inewo musanganiswa wekukora, mudziviriri wemhepo, muchina wekuita kuti pave nechinhu chinosimbisa ganda, uye muchina wekuita kuti pave nechinhu chinosimbisa ganda. Musanganiswa wayo wekutanga ndewe (huwandu hwehuwandu): 20%-40% chikamu che solvent uye 40%-60% chikamu che acidic mumvura chine surfactant. Kana ichienzaniswa nemuchina wekuita kuti pave nechinhu chinosvibisa ganda wedichloromethane, ine chepfu shoma uye inononoka kubviswa pendi nekukurumidza kwakafanana. Inogona kubvisa pendi ye epoxy, epoxy zinc yellow primer, kunyanya yekupenda ganda ine simba rakanaka rekubvisa pendi.

Pukuta gadzirisa ndima iyi zvikamu zvakajairika

1) Chinhu chikuru chinonyungudutsa

Chinhu chikuru chinogona kunyungudutsa firimu rependi kuburikidza nekupinda kwemasero uye kuzvimba, izvo zvinogona kuparadza kunamira kwefirimu rependi kune substrate uye chimiro chenzvimbo yefirimu rependi, saka benzene, hydrocarbon, ketone ne ether zvinowanzo shandiswa sezvinhu zvikuru zvinonyungudutsa, uye hydrocarbon ndiyo yakanakisa. Zvinhu zvikuru zvinonyungudutsa ibenzene, hydrocarbons, ketones ne ethers, uye mahydrocarbons ndiwo akanakisa. Chinhu chinonyungudutsa chependi chine chepfu shoma chisina methylene chloride chinonyanya kunge chine ketone (pyrrolidone), ester (methyl benzoate) uye alcohol ether (ethylene glycol monobutyl ether), nezvimwewo. Ethylene glycol ether yakanaka kune polymer resin. Ethylene glycol ether ine kunyunguduka kwakasimba kune polymer resin, inopindira zvakanaka, inofashaira zvakanyanya, ine mutengo wakaderera, uye zvakare inonyungudutsa zvakanaka, saka inoshanda mukutsvaga kuishandisa sechinhu chikuru chinonyungudutsa kugadzirira chinhu chinonyungudutsa (kana chinhu chinochenesa) chine mhedzisiro yakanaka uye mabasa mazhinji.

Molekyuru yebenzaldehyde idiki, uye kupinda kwayo mucheni yemacromolecules kwakasimba, uye kunyungudika kwayo kune polar organic matter kwakasimbawo, izvo zvinoita kuti macromolecules awedzere muhuwandu uye abudise kushushikana. Muchina wekupenda une chepfu shoma uye low volatility wakagadzirwa nebenzaldehyde se solvent unogona kubvisa zvinobudirira epoxy powder coating pamusoro pesimbi substrate patembiricha yemumba, uye wakakodzerawo kubviswa kwepende yeganda rendege. Kushanda kwemuchina uyu wekupenda kwakafanana nekwemuchina wekupenda wemakemikari wekare (rudzi rwemethylene chloride nerudzi rwealkali inopisa), asi haunyanyi kukuvadza substrates dzesimbi.

Limonene chinhu chakanaka chekugadzira pendi dzinobviswa kubva paganda reorenji, ganda retangerine uye ganda recitron. Chinhu chakanaka chekugadzira grisi, wakisi neresin. Chine pokufashaira zvakanyanya uye pokubatidza uye chakachengeteka kushandisa. Ester solvents inogonawo kushandiswa sezvinhu zvekugadzira pendi. Ester solvents inoratidzwa nehupfu hushoma, hwema hwezvinonhuwira uye isinganyungudike mumvura, uye inonyanya kushandiswa se solvents yezvinhu zvine mafuta. Methyl benzoate inomiririra ester solvents, uye nyanzvi dzakawanda dzinotarisira kuishandisa mukugadzira pendi.

2) Kugadzirisa zvinhu pamwe chete

Co-solvent inogona kuwedzera kunyungudika kwemethyl cellulose, kuvandudza viscosity uye kugadzikana kwechigadzirwa, uye kushanda pamwe chete nemamorekuru makuru e solvent kuti apinde mufirimu rependi, kuderedza kunamira pakati pefirimu rependi ne substrate, kuitira kuti kukurumidze kukurumidza kubvisa pendi. Inogonawo kuderedza chiyero che solvent huru uye kuderedza mutengo. Alcohols, ethers uye esters zvinowanzo shandiswa se co-solvents.

3) Mutsigiri

Chinosimudzira zvinhu zvakawanda zvinoita kuti pave nenyucleophilic solvents, kunyanya organic acids, phenols uye amines, zvinosanganisira formic acid, acetic acid uye phenol. Chinoshanda nekuparadza macromolecular chains uye kukurumidza kupinda nekuzvimba kwependi. Organic acid ine boka rinoshanda sechikamu chependi - OH, inogona kushanda pamwe chete ne crosslinking system yeokisijeni, nitrogen nedzimwe polar atoms, ichisimudza system yechikamu che physical crosslinking points, nokudaro ichiwedzera paint stripper mu organic coating diffusion rate, inovandudza kuzvimba kwependi uye kugona kukwinya. Panguva imwecheteyo, organic acids inogona catalyst hydrolysis ye ester bond, ether bond ye polymer uye kuita kuti ityore bond, zvichikonzera kurasikirwa kwekusimba uye brittle substrates mushure mekubviswa kwependi.

Mvura isina ionized i solvent ine dielectric yakawanda (ε=80120 pa20 ℃). Kana pamusoro pechinhu chinobviswa chiri polar, senge polyurethane, solvent ine dielectric yakawanda ine simba rakanaka pakuparadzanisa pamusoro pe electrostatic, kuitira kuti zvimwe zvinonyungudutsa zvigone kupinda mumaburi ari pakati pe coating ne substrate.

Hydrogen peroxide inoora pamusoro pesimbi zhinji, ichiburitsa okisijeni, hydrogen uye atomu yeokisijeni. Okisijeni inoita kuti jira rekudzivirira rakapfava riputike, zvichibvumira jira idzva rekupenda kupinda pakati pesimbi nejira, nokudaro zvichikurumidzisa maitiro ekubvisa. Maacids chikamu chikuru mukugadzirwa kwepende, uye basa rawo nderekuchengetedza pH yepende stripper pa210-510 kuitira kuti iite nema free amine groups muma coatings akadai se polyurethane. Acid inoshandiswa inogona kunge soluble solid acid, liquid acid, organic acid kana inorganic acid. Sezvo inorganic acid ichinyanya kukonzera ngura yesimbi, saka zvakanaka kushandisa RCOOH general formula, molecular weight iri pasi pe1,000 soluble organic acids, senge formic acid, acetic acid, propionic acid, butyric acid, valeric acid, hydroxyacetic acid, hydroxybutyric acid, lactic acid, citric acid nedzimwe hydroxy acids nemisanganiswa yadzo.

4) Zvinokora

Kana muchina wekupenda uchishandiswa pakugadzira zvinhu zvikuru zvinofanira kunamira pamusoro kuti zviite kuti zviite sezviri kuitika, zvakakosha kuwedzera zvinhu zvinosimbisa zvakaita semapolymer anonyungudika mumvura akadai secellulose, polyethylene glycol, nezvimwewo, kana munyu usinganyungudike senge sodium chloride, potassium chloride, sodium sulfate, uye magnesium chloride. Zvinofanira kucherechedzwa kuti munyu usinganyungudike unogadzirisa viscosity inowedzera nechiyero chayo, kupfuura chiyero ichi, viscosity inodzikira panzvimbo pezvo, uye kusarudzwa kusina kunaka kunogonawo kukanganisa zvimwe zvikamu.

Polyvinyl alcohol ipolymer inonyungudika mumvura, ine mvura inonyungudika zvakanaka, inoumba firimu, inonamira uye inosanganisa, asi makemikari mashoma chete anogona kuinyungudutsa, makemikari epolyol akadai seglycerol, ethylene glycol uye polyethylene glycol yakaderera, amide, triethanolamine munyu, dimethyl sulfoxide, nezvimwewo, mune organic solvents dziri pamusoro apa, nyungudutsa huwandu hushoma hwepolyvinyl alcohol inofanirawo kupiswa. Polyvinyl alcohol aqueous solution ine benzyl alcohol uye formic acid musanganiswa wekusaenderana zvakanaka, nyore kuisa, uye panguva imwe chete nemethyl cellulose, hydroxyethyl cellulose solubility ye poor, asi uye carboxy methyl cellulose solubility iri nani.

Polyacrylamide ipolymer inonyungudika mumvura, iyo nezvinobuda mairi zvinogona kushandiswa se flocculants, thickeners, paper enhancers uye retarders, nezvimwewo. Sezvo polyacrylamide molecular chain ine amide group, inoratidzwa ne hydrophilicity yakakwira, asi hainyungudike mune akawanda organic solutions, akadai se methanol, ethanol, acetone, ether, aliphatic hydrocarbons uye aromatic hydrocarbons. Methyl cellulose aqueous solution mu benzyl alcohol type ye acid yakagadzikana, uye zvinhu zvakasiyana-siyana zvinonyungudika mumvura zvine mukana wakanaka wekusanganiswa. Huwandu hwe viscosity zvinoenderana nezvinodiwa zvekuvaka, asi mhedzisiro yekukora haina kuenzana zvakananga nehuwandu, nekuwedzera kwehuwandu hwakawedzerwa, aqueous solution inoderedza zvishoma nezvishoma gelation tembiricha. Benzaldehyde type haigoni kuwedzerwa nekuwedzera methyl cellulose kuti iwane viscosity effect yakakosha.

5) Chinodzivirira Kuora

Kuti pasave nekuora kwepasi pevhu (kunyanya magnesium nealuminium), panofanira kuwedzerwa huwandu hwakati hwechinhu chinodzivirira ngura. Kuora idambudziko risingafaniri kufuratirwa pakugadzirwa chaiko, uye zvinhu zvakagadziriswa nependi zvinofanirwa kugezwa nekuomeswa nemvura kana kugezwa nerosin nepeturu nenguva kuti simbi nezvimwe zvinhu zvisave nengura.

6) Zvinodzivisa kugadzikana kwemuviri

Kazhinji, zvinhu zvine mukana wakanaka wekupinza mvura zviri nyore kuputika, saka kuitira kudzivirira kuputika kwemamorekuru makuru ekunyungudutsa, huwandu hwakati hwemushonga wekunyungudutsa hunofanira kuwedzerwa kumuchina wekubvisa pendi kuderedza kuputika kwemamorekuru ekunyungudutsa mukugadzirwa, kutakurwa, kuchengetwa uye kushandiswa. Kana muchina wekubvisa pendi une wakisi yeparafini ukaiswa pamusoro pependi, jira rakatetepa rewakisi yeparafini rinoumbwa pamusoro, kuitira kuti mamorekuru makuru ekunyungudutsa ave nenguva yakakwana yekugara uye kupinda mufirimu rependi kuti abviswe, nokudaro zvichivandudza mhedzisiro yekubvisa pendi. Wakisi yakasimba yeparafini yoga inowanzo kukonzera kusapararira zvakanaka, uye wakisi shoma yeparafini icharamba iri pamusoro mushure mekubvisa pendi, izvo zvinokanganisa kupfapfaidza zvakare. Kana zvichidikanwa, wedzera emulsifier kuderedza kushushikana kwenzvimbo kuitira kuti wakisi yeparafini newakisi yeparafini yemvura zvigone kupararira zvakanaka uye kugadzikana kwayo mukuchengetedza kugone kuvandudzwa.

7) Surfactant

Kuwedzerwa kwemasurfactants, akadai seamphoteric surfactants (semuenzaniso, imidazoline) kana ethoxynonylphenol, kunogona kubatsira kuvandudza kugadzikana kwependi uye kuita kuti pendi itsvukidzwe nemvura. Panguva imwe chete, kushandiswa kwemamorekuru esurfactant ane lipophilic uye hydrophilic maviri akasiyana esurfactant, kunogona kukanganisa solubilization effect; kushandiswa kwesurfactant colloidal group effect, zvekuti kunyungudika kwezvikamu zvakati wandei mu solvent kwakawedzera zvakanyanya. Masurfactants anowanzoshandiswa ndeaya propylene glycol, sodium polymethacrylate kana sodium xylenesulfonate.

Kuputsika