Paint Stripper Super Paint Stripper/mai cire fenti

 Paint Stripper Super Paint Stripper/mai cire fenti

Siffofin:

l Mai cire fenti mai dacewa

l Rashin lalata, yi amfani da aminci kuma aiki cikin sauƙi

l Ba ya ƙunshi acid, benzene da sauran abubuwa masu cutarwa

l Ana iya sake amfani da shi ta tsaftace fim ɗin fenti da fenti a cikin bayani

l Za a iya cire resin phenolic, acrylic, epoxy, polyurethane kammala fenti da fenti na farko da sauri.

 

Tsarin aikace-aikacen:

l Bayyanar: ruwa mara launi zuwa haske launin ruwan kasa

l Hanyar magani: tsomawa

l Lokacin Jiyya:1-15min

l Zafin magani: 15-35 ℃

l Buga jiyya: Wanke ragowar fim ɗin fenti ta amfani da ruwa mai ƙarfi

Sanarwa:

1. Hattara

(1) Haramun ne a taba shi kai tsaye ba tare da kariya ba;

(2) Sanya safar hannu masu aminci da tabarau kafin amfani da shi

(3) Ka nisantar da zafi, wuta da adana shi a cikin inuwa, wuri mai iska

2. Matakan taimakon gaggawa

1. A wanke shi da ruwa mai yawa nan da nan, idan sun hadu da fata da ido. Sannan a nemi shawarar likita da wuri.

2. Sha ~10% sodium carbonate aqueous nan da nan, idan har ya hadiye mai cire fenti. Sannan a nemi shawarar likita da wuri.

 

Aikace-aikace:

l Karfe Karfe

l Galvanized takardar

l aluminum gami

l Magnesium gami

l Copper, gilashi, itace da filastik da dai sauransu

 

Kunshin, ajiya da sufuri:

l Akwai a cikin 200 kg / ganga ko 25 kg / ganga

Lokacin ajiya: ~ watanni 12 a cikin rufaffiyar kwantena, wuri mai inuwa da bushewa

Paint tsiri da plasticizer

Paint tsiri da plasticizer

gabatarwa

A halin yanzu, ana samun saurin bunkasuwar fenti a kasar Sin, amma har yanzu ana samun wasu matsaloli, kamar yawan guba, rashin gamsuwa da cire fenti da kuma gurbacewar yanayi. Babban inganci, babban abun ciki na fasaha da samfuran ƙima masu ƙima kaɗan ne. A yayin da ake yin gyaran fenti, ana ƙara kakin paraffin, duk da cewa yana iya hana kaushi da sauri, amma bayan cire fenti, paraffin kakin yakan kasance a saman abin da za a fentin, don haka wajibi ne a yi gaba ɗaya. cire kakin zuma na paraffin, saboda yanayi daban-daban na farfajiyar da za a fentin, yana da wuya a cire kakin zuma na paraffin, wanda ke haifar da rashin jin daɗi na gaba. Bugu da ƙari, tare da ci gaban fasaha da ci gaban zamantakewar jama'a, mutane suna ƙara fahimtar kariyar muhalli kuma suna da mafi girma da buƙatun buƙatun fenti. Shekaru da yawa, masana'antar fenti suna ƙoƙarin rage amfani da kaushi. Duk da haka, masu kaushi suna da matukar muhimmanci don fenti masu tsiro, sabili da haka zaɓin kaushi yana da mahimmanci. Mataki na 612 na Ƙayyadaddun Fasaha na Jamus (TRGS) koyaushe yana ƙuntata yin amfani da fenti na methylene chloride don rage haɗarin aiki. Wani abin lura shi ne ci gaba da amfani da fenti na gargajiya na methylene chloride ta masu ado ba tare da la'akari da amincin yanayin aiki ba. Dukansu manyan ƙarfi da tsarin tushen ruwa zaɓi ne don rage abun ciki mai ƙarfi da ƙirƙirar samfur mai aminci don amfani. Don haka abokantaka da muhalli da ingantaccen ruwa masu lalata fenti za su zama hanyar gaba ga masu cire fenti. Ƙwararren fasaha, masu cire fenti masu daraja tare da babban abun ciki suna da ban sha'awa sosai.

Rushe gyara wannan sakin layi na nau'ikan tsiri fenti

1) Alkaline fenti

Alkaline paint stripper gabaɗaya ya ƙunshi abubuwan alkaline (wanda aka fi amfani da su sodium hydroxide, ash soda, gilashin ruwa, da sauransu), masu hana ruwa, masu hana lalata, da sauransu, waɗanda ake zafi lokacin amfani da su. A gefe guda, alkali yana sa wasu ƙungiyoyi a cikin fenti kuma ya narke cikin ruwa; a daya bangaren kuma, zafi mai zafi yana dafa fim din da aka rufe, wanda hakan ya sa ya rasa karfinsa tare da rage mannewa da karfe, wanda tare da illar kutsawa cikin surfactant, shiga da kuma alaka da shi, daga karshe yakan lalata tsohon rufin. Fade fita.

2) Acid fenti stripper.

Acid fenti stripper ne mai fenti wanda ya ƙunshi acid mai ƙarfi irin su sulfuric acid, hydrochloric acid, phosphoric acid da nitric acid. Saboda maida hankali hydrochloric acid da nitric acid volatilize sauƙi da kuma samar da acid hazo, kuma suna da lalata tasiri a kan karfe substrate, kuma mayar da hankali phosphoric acid daukan lokaci mai tsawo to Fashe fenti kuma yana da lalata sakamako a kan substrate, sabili da haka, sama uku acid ba kasafai. da ake amfani da shi wajen ɓata fenti. Mai da hankali sulfuric acid da aluminum, baƙin ƙarfe da sauran karafa passivation dauki, don haka karfe lalata ne sosai kananan, kuma a lokaci guda yana da karfi dehydration, carbonization da sulfonation na kwayoyin halitta da kuma sanya shi narkar da cikin ruwa, don haka mayar da hankali sulfuric acid ne sau da yawa. amfani da acid Paint stripper.

3) Mai kaushi fenti na yau da kullun

Direba mai kaushi na yau da kullun ya ƙunshi cakuɗaɗɗen kaushi na zahiri da paraffin, kamar T-1, T-2, T-3 fenti; T-1 fenti ya ƙunshi ethyl acetate, acetone, ethanol, benzene, paraffin; T-2 ya ƙunshi ethyl acetate, acetone, methanol, benzene da sauran kaushi da paraffin; T-3 ya ƙunshi methylene chloride, plexiglass, plexi-gilashin da sauran kaushi. Ethanol, paraffin kakin zuma, da dai sauransu suna hade, ƙananan guba, sakamako mai kyau na fenti. Suna da tasirin fenti akan fenti na alkyd, fenti nitro, fenti acrylic da fenti na perchlorethylene. Duk da haka, maganin kwayoyin halitta a cikin irin wannan nau'i na fenti yana da rauni, mai ƙonewa da kuma mai guba, don haka ya kamata a yi amfani da shi a wuri mai kyau.

4) chlorinated hydrocarbon sauran ƙarfi fenti stripper

Chlorinated hydrocarbon sauran ƙarfi fenti stripper warware matsalar fenti fenti ga epoxy da polyurethane coatings, yana da sauki a yi amfani da, high dace da kasa lalata ga karafa. Yawanci ya ƙunshi kaushi (fanti na gargajiya galibi suna amfani da methylene chloride azaman kaushi na halitta, yayin da masu fenti na zamani sukan yi amfani da kaushi mai zafi mai zafi, kamar dimethylaniline, dimethyl sulfoxide, propylene carbonate da N-methyl pyrrolidone, haɗe da alcohols da kamshi. ko hade tare da hydrophilic alkaline ko tsarin acidic), co-solvents (irin su methanol, ethanol da isopropyl barasa, da dai sauransu) Masu kunnawa (kamar phenol, formic acid ko ethanolamine, da dai sauransu), thickeners (kamar polyvinyl barasa, methyl cellulose). , ethyl cellulose da fumed silica, da dai sauransu), maras tabbas inhibitors (kamar paraffin wax, ping ping, da dai sauransu), surfactants (kamar OP-10, OP-7 da sodium alkyl benzene sulfonate, da dai sauransu), lalata inhibitors, masu shiga tsakani, magungunan wetting da magungunan thixotropic.

5) Rikicin fenti na ruwa

A kasar Sin, masu bincike sun yi nasarar kera wani fenti na ruwa ta hanyar amfani da barasa benzyl maimakon dichloromethane a matsayin babban kaushi. Bayan barasa na benzyl, ya kuma haɗa da wakili mai kauri, mai hanawa mara ƙarfi, mai kunnawa da surfactant. Babban abun da ke ciki shine (rabin girma): 20% -40% bangaren sauran ƙarfi da 40% -60% ruwa mai tushen ruwa tare da surfactant. Idan aka kwatanta da dichloromethane fenti na gargajiya, yana da ƙarancin guba da saurin cire fenti iri ɗaya. Yana iya cire epoxy fenti, epoxy zinc yellow primer, musamman ga jirgin fata fenti yana da kyakkyawan sakamako na fenti.

Rushe gyara wannan sakin layi gama gari

1) Magani na farko

Babban sauran ƙarfi zai iya narkar da fim ɗin fenti ta hanyar shigar da kwayoyin halitta da kumburi, wanda zai iya lalata mannewar fim ɗin fenti zuwa ga ma'auni da tsarin sararin samaniya na fim ɗin fenti, don haka ana amfani da benzene, hydrocarbon, ketone da ether gabaɗaya azaman babban kaushi. , kuma hydrocarbon shine mafi kyau. Babban abubuwan kaushi sune benzene, hydrocarbons, ketones da ethers, kuma hydrocarbons sune mafi kyau. Low-mai guba sauran ƙarfi ƙarfi fenti stripper wanda ba ya ƙunshi methylene chloride yafi ƙunshi ketone (pyrrolidone), ester (methyl benzoate) da barasa ether (ethylene glycol monobutyl ether), da dai sauransu Ethylene glycol ether yana da kyau ga polymer guduro. Ethylene glycol ether yana da ƙarfi solubility zuwa polymer guduro, mai kyau permeability, high tafasasshen batu, mai rahusa farashin, kuma shi ne ma mai kyau surfactant, don haka yana aiki a cikin bincike na yin amfani da shi a matsayin babban sauran ƙarfi shirya Paint stripper (ko tsaftacewa wakili). tare da sakamako mai kyau da ayyuka masu yawa.

Kwayoyin kwayoyin benzaldehyde kadan ne, kuma shigarsa cikin sarkar macromolecules yana da karfi, kuma karfinsa ga kwayoyin halitta na polar shima yana da karfi sosai, wanda zai sa macromolecules su kara girma kuma suna haifar da damuwa. Ƙarƙashin ƙwayar cuta da ƙananan ƙarancin fenti wanda aka shirya tare da benzaldehyde a matsayin mai narkewa zai iya cire murfin foda na epoxy da kyau a saman saman karfe a dakin da zafin jiki, kuma ya dace da cire fenti na fata na jirgin sama. Aiki na wannan fenti ya yi kama da na gargajiya na fentin fenti (nau'in methylene chloride da nau'in alkali mai zafi), amma ba shi da lahani sosai ga abubuwan ƙarfe.

Limonene abu ne mai kyau don masu cire fenti daga yanayin sabuntawa. Wani kaushi ne na hydrocarbon da aka samo daga bawon lemu, bawon tangerine da bawon citron. Yana da kyakkyawan ƙarfi don maiko, kakin zuma da guduro. Yana da babban wurin tafasa da wurin kunna wuta kuma yana da aminci don amfani. Hakanan za'a iya amfani da abubuwan kaushi na Ester azaman albarkatun ƙasa don cire fenti. Abubuwan kaushi na Ester suna da ƙarancin guba, ƙamshi mai ƙamshi da mara narkewa a cikin ruwa, kuma galibi ana amfani da su azaman kaushi don abubuwan halitta mai mai. Methyl benzoate shine wakilin ester solvents, kuma malamai da yawa suna fatan yin amfani da shi a cikin fenti.

2) Mai narkewa

Mai narkewa zai iya ƙara rushewar methyl cellulose, inganta danko da kwanciyar hankali na samfurin, da kuma yin aiki tare da manyan ƙananan ƙwayoyin cuta don shiga cikin fim ɗin fenti, rage mannewa tsakanin fim ɗin fenti da substrate, don saurin sauri. sama da yawan fenti. Hakanan zai iya rage yawan adadin babban ƙarfi kuma rage farashin. Alcohols, ethers da esters galibi ana amfani da su azaman abubuwan haɗin gwiwa.

3) Mai gabatarwa

Promotor shine adadin kaushi na nucleophilic, galibi Organic acid, phenols da amines, gami da formic acid, acetic acid da phenol. Yana aiki ta hanyar lalata sarƙoƙi na macromolecular da haɓaka shiga da kumburin rufin. Organic acid yana ƙunshe da rukunin aikin guda ɗaya kamar abun da ke tattare da fim ɗin fenti - OH, yana iya hulɗa tare da tsarin haɗin gwiwar oxygen, nitrogen da sauran atom ɗin igiya, yana ɗaga tsarin ɓangaren madaidaicin maki na zahiri, ta haka yana ƙara mai cire fenti a cikin Organic shafi yaduwa kudi, inganta Paint film kumburi da wrinkling ikon. A lokaci guda kuma, kwayoyin acid na iya haifar da hydrolysis na ester bond, ether bond na polymer kuma ya sa ya karya haɗin gwiwa, yana haifar da asarar tauri da raguwa bayan fenti.

Deionized ruwa shi ne babban dielectric akai ƙarfi ƙarfi (ε=80120 a 20 ℃). Lokacin da farfajiyar da za a cire ta zama polar, irin su polyurethane, babban ƙarfin dielectric akai-akai yana da tasiri mai kyau akan rabuwa da electrostatic surface, ta yadda sauran kaushi zai iya shiga cikin pores tsakanin shafi da substrate.

Hydrogen peroxide yana rubewa akan mafi yawan filayen ƙarfe, yana samar da oxygen, hydrogen da nau'in atomic na oxygen. Oxygen yana haifar da laushin kariya mai laushi don birgima, yana barin sabon fenti ya shiga tsakanin karfe da murfin, don haka ya gaggauta aikin cirewa. Acids kuma babban sashi ne a cikin ƙirar fenti, kuma aikinsu shine kiyaye pH na fenti a 210-510 don amsawa tare da rukunin amine kyauta a cikin sutura irin su polyurethane. Acid ɗin da aka yi amfani da shi zai iya zama acid mai narkewa, acid ruwa, Organic acid ko inorganic acid. Kamar yadda inorganic acid zai iya haifar da lalata na karfe, don haka yana da kyau a yi amfani da tsarin RCOOH gabaɗaya, nauyin kwayoyin halitta ƙasa da 1,000 mai narkewa Organic acid, kamar formic acid, acetic acid, propionic acid, butyric acid, valeric acid, hydroxyacetic. acid, hydroxybutyric acid, lactic acid, citric acid da sauran hydroxy acid da gaurayawan su.

4) Masu kauri

Idan ana amfani da ɗigon fenti don manyan sassa na tsarin da ke buƙatar riko da saman don sa su amsa, ya zama dole a ƙara masu kauri kamar su polymers masu narkewa kamar cellulose, polyethylene glycol, da dai sauransu, ko gishiri na inorganic kamar sodium chloride. , potassium chloride, sodium sulfate, da magnesium chloride. Ya kamata a lura da cewa inorganic salts thickeners daidaita danko zai karu da su sashi, bayan wannan kewayon, da danko da aka rage a maimakon haka, da rashin dacewa zabi na iya samun tasiri a kan sauran aka gyara.

Polyvinyl barasa shine polymer mai narkewa da ruwa, tare da mai narkewar ruwa mai kyau, samar da fim, mannewa da emulsification, amma kawai 'yan mahadi na halitta zasu iya narkar da shi, mahaɗan polyol kamar glycerol, ethylene glycol da ƙananan nauyin kwayoyin polyethylene glycol, amide, triethanolamine. gishiri, dimethyl sulfoxide, da dai sauransu, a cikin abubuwan da ke sama na kwayoyin halitta, ya kamata a narkar da karamin adadin barasa na polyvinyl. Polyvinyl barasa aqueous bayani tare da benzyl barasa da formic acid cakuda matalauta karfinsu, sauki layering, kuma a lokaci guda tare da methyl cellulose, hydroxyethyl cellulose solubility na matalauta, amma kuma carboxy methyl cellulose solubility ne mafi alhẽri.

Polyacrylamide ne mai linzamin ruwa mai narkewa polymer, shi da abubuwan da suka samo asali za a iya amfani da su azaman flocculants, thickeners, takarda enhancers da retarders, da dai sauransu. Organic mafita, kamar methanol, ethanol, acetone, ether, aliphatic hydrocarbons da aromatic hydrocarbons. Maganin ruwa na methyl cellulose a cikin nau'in barasa na benzyl ya fi kwanciyar hankali, kuma nau'ikan abubuwa masu narkewa da ruwa iri-iri suna da haɓaka mai kyau. Yawan danko dangane da abubuwan da ake buƙata na ginin, amma tasirin daɗaɗɗa ba daidai ba ne kai tsaye ga adadin, tare da karuwa a cikin adadin da aka ƙara, maganin ruwa mai ruwa a hankali ya rage yawan zafin jiki na gelation. Ba za a iya ƙara nau'in Benzaldehyde ta ƙara methyl cellulose don cimma gagarumin tasirin danko ba.

5) Mai hana lalata

Don hana lalacewa na substrate (musamman magnesium da aluminum), ya kamata a ƙara wani adadin mai hana lalata. Lalacewar matsala ce da ba za a yi watsi da ita a zahiri ba, sannan a wanke kayan da aka yi da fenti a bushe da ruwa ko kuma a wanke su da rosin da man fetur a kan lokaci don tabbatar da cewa karfe da sauran abubuwan ba su lalace ba.

6) Masu hanawa marasa ƙarfi

Gabaɗaya, abubuwan da ke da kyawawa mai kyau suna da sauƙin canzawa, don haka don hana haɓakar manyan ƙwayoyin ƙarfi, yakamata a ƙara wani adadin mai hanawa a cikin fenti don rage haɓakar ƙwayoyin ƙarfi a cikin tsarin samarwa. , sufuri, ajiya da amfani. Lokacin da aka shafa fenti tare da kakin paraffin a saman fenti, za a samar da wani ɗan ƙaramin kakin paraffin a saman, ta yadda manyan ƙwayoyin sulke za su sami isasshen lokacin da za su zauna su shiga cikin fim ɗin fenti don cirewa, ta haka ne. inganta tasirin fenti. Kakin sinadarai mai ƙarfi shi kaɗai zai haifar da rarrabuwar kawuna, kuma ɗan ƙaramin kakin paraffin zai kasance a saman bayan an cire fenti, wanda zai shafi sake fesa. Idan ya cancanta, ƙara emulsifier don rage tashin hankali ta yadda paraffin kakin zuma da kakin zuma na paraffin za su iya tarwatse da kyau kuma za a iya inganta kwanciyar hankali.

7) Surfactant

Bugu da ƙari na surfactants, irin su amphoteric surfactants (misali, imidazoline) ko ethoxynonylphenol, na iya taimakawa wajen inganta kwanciyar hankali na ma'aunin fenti da sauƙaƙe kurkura da fenti da ruwa. A lokaci guda, yin amfani da kwayoyin surfactant tare da lipophilic da hydrophilic biyu kishiyar kaddarorin surfactant, na iya shafar tasirin solubilization; Yin amfani da tasirin ƙungiyar colloidal surfactant, don haka solubility na abubuwa da yawa a cikin sauran ƙarfi ya karu sosai. Abubuwan da aka fi amfani da su sune propylene glycol, sodium polymethacrylate ko sodium xylenesulfonate.

Rushewa