Cov Tshuaj Pleev Xim Super Cov Tshuaj Pleev Xim/tshuaj tshem xim

 Cov Tshuaj Pleev Xim Super Cov Tshuaj Pleev Xim/tshuaj tshem xim

Nta:

l Cov tshuaj pleev xim rau ib puag ncig

l Tsis xeb, siv kev nyab xeeb thiab ua haujlwm tau yooj yim

l Tsis muaj kua qaub, benzene thiab lwm yam khoom siv tsis zoo

l Siv tau dua los ntawm kev ntxuav cov xim pleev xim thiab cov xim pleev xim hauv cov kua

l Muaj peev xwm tshem tawm cov phenolic resin, acrylic, epoxy, polyurethane xim tiav thiab xim zoo tshaj plaws sai sai

 

Cov txheej txheem thov:

l Tsos: Tsis muaj xim rau lub teeb xim av pob tshab kua

l Kev kho mob txoj kev: Dipping

l Lub sijhawm kho mob: 1-15 feeb

l Kev kho mob kub: 15-35 ℃

l Tom qab kho: Yaug cov xim pleev xim seem los ntawm kev siv dej siab

Daim Ntawv Ceeb Toom:

1. Kev ceev faj

(1) Txwv tsis pub kov nws ncaj qha yam tsis muaj kev tiv thaiv kev nyab xeeb;

(2) Hnav cov hnab looj tes thiab cov tsom iav ua ntej siv

(3) Khaws cia kom deb ntawm qhov kub, hluav taws thiab khaws cia rau hauv qhov chaw ntxoov ntxoo, qhov chaw muaj cua nkag

2. Cov kev ntsuas kev pab thawj zaug

1. Ntxuav nrog dej ntau tam sim ntawd, yog tias kov daim tawv nqaij thiab qhov muag. Tom qab ntawd nug kws kho mob sai li sai tau.

2. Haus ~10% sodium carbonate aqueous tam sim ntawd, yog tias nqos cov tshuaj tshem xim. Tom qab ntawd nug kws kho mob sai li sai tau.

 

Daim Ntawv Thov:

l Cov hlau carbon

l Daim ntawv Galvanized

l Txhuas hlau

l Magnesium hlau

l Tooj liab, iav, ntoo thiab yas thiab lwm yam

 

Pob khoom, cia khoom thiab kev thauj mus los:

Muaj nyob rau hauv 200 kg / thoob los yog 25 kg / thoob

Lub sijhawm khaws cia: ~ 12 lub hlis hauv cov thawv kaw, qhov chaw ntxoov ntxoo thiab qhuav

Kev tshem xim thiab plasticizer

Kev tshem xim thiab plasticizer

lus qhia ua ntej

Tam sim no, kev tsim cov tshuaj pleev xim hauv Suav teb yog ceev heev, tab sis tseem muaj qee qhov teeb meem, xws li muaj tshuaj lom ntau, tsis zoo rau kev pleev xim thiab muaj kuab paug loj. Cov khoom zoo, cov thev naus laus zis siab thiab cov khoom muaj nqis ntxiv yog tsawg. Thaum npaj cov tshuaj pleev xim, feem ntau ntxiv cov roj paraffin, txawm hais tias nws tuaj yeem tiv thaiv cov kuab tshuaj kom tsis txhob yaj sai dhau, tab sis tom qab pleev xim, cov roj paraffin feem ntau tseem nyob ntawm qhov chaw ntawm cov khoom uas yuav pleev xim, yog li nws yog qhov tsim nyog kom tshem tawm cov roj paraffin tag nrho, vim muaj ntau yam xwm txheej ntawm qhov chaw uas yuav pleev xim, ua rau nws nyuaj heev rau tshem tawm cov roj paraffin, uas coj kev tsis yooj yim rau txheej tom ntej. Tsis tas li ntawd, nrog rau kev nce qib ntawm thev naus laus zis thiab kev txhim kho hauv zej zog, tib neeg tau paub ntau ntxiv txog kev tiv thaiv ib puag ncig thiab muaj cov kev xav tau ntau dua rau cov tshuaj pleev xim. Tau ntau xyoo, kev lag luam pleev xim tau sim txo kev siv cov kuab tshuaj. Txawm li cas los xij, cov kuab tshuaj tseem ceeb heev rau cov tshuaj pleev xim, thiab yog li ntawd kev xaiv cov kuab tshuaj tseem ceeb heev. Tshooj 612 ntawm German Technical Specification (TRGS) yeej ib txwm txwv tsis pub siv cov tshuaj pleev xim methylene chloride kom txo tau qhov txaus ntshai ntawm txoj haujlwm. Qhov tseem ceeb tshaj plaws yog kev siv cov tshuaj pleev xim methylene chloride ib txwm muaj los ntawm cov neeg kho kom zoo nkauj yam tsis xav txog kev nyab xeeb ntawm qhov chaw ua haujlwm. Ob qho tib si cov khoom siv khov kho thiab cov dej yog cov kev xaiv los txo cov kuab tshuaj thiab tsim cov khoom uas muaj kev nyab xeeb rau kev siv. Yog li ntawd, cov tshuaj pleev xim uas siv dej zoo thiab tsis ua rau ib puag ncig puas tsuaj yuav yog txoj hauv kev zoo rau cov tshuaj pleev xim. Cov tshuaj pleev xim uas siv thev naus laus zis siab thiab qib siab uas muaj cov ntsiab lus siab yog cov khoom muaj kev cia siab heev.

Kho kom raug kab lus no

1) Cov tshuaj pleev xim alkaline

Feem ntau cov tshuaj pleev xim alkaline muaj cov tshuaj alkaline (feem ntau siv sodium hydroxide, soda tshauv, dej iav, thiab lwm yam), surfactants, corrosion inhibitors, thiab lwm yam, uas raug cua sov thaum siv. Ntawm ib sab tes, alkali saponifies qee pawg hauv cov xim thiab yaj hauv dej; ntawm qhov tod tes, cov pa kub ua rau cov zaj duab xis txheej siav, ua rau nws poob zog thiab txo nws cov lo rau hlau, uas, ua ke nrog cov nyhuv ntawm surfactant infiltration, nkag mus thiab affinity, thaum kawg ua rau cov txheej qub raug rhuav tshem. Ploj mus.

2) Cov tshuaj pleev xim acid.

Cov tshuaj pleev xim acid yog cov tshuaj pleev xim uas muaj cov kua qaub muaj zog xws li concentrated sulfuric acid, hydrochloric acid, phosphoric acid thiab nitric acid. Vim tias concentrated hydrochloric acid thiab nitric acid yooj yim yaj thiab tsim cov kua qaub, thiab muaj cov teebmeem corrosive rau cov hlau substrate, thiab concentrated phosphoric acid siv sijhawm ntev kom ploj xim thiab muaj cov teebmeem corrosive rau cov substrate, yog li ntawd, peb cov kua qaub saum toj no tsis tshua siv los ploj xim. Concentrated sulfuric acid thiab txhuas, hlau thiab lwm yam hlau passivation reaction, yog li cov hlau corrosion yog me me heev, thiab tib lub sijhawm muaj zog dehydration, carbonization thiab sulfonation ntawm cov organic matter thiab ua rau nws yaj hauv dej, yog li concentrated sulfuric acid feem ntau siv rau hauv cov tshuaj pleev xim acid.

3) Cov tshuaj pleev xim ib txwm muaj

Cov tshuaj pleev xim uas siv los tshem cov xim sib xyaw ua ke yog cov organic solvent thiab paraffin sib xyaw ua ke, xws li T-1, T-2, T-3; Cov tshuaj pleev xim T-1 yog cov ethyl acetate, acetone, ethanol, benzene, paraffin; T-2 yog cov ethyl acetate, acetone, methanol, benzene thiab lwm yam tshuaj pleev xim thiab paraffin; T-3 yog cov methylene chloride, plexiglass, plexi-glass thiab lwm yam tshuaj pleev xim. Ethanol, paraffin wax, thiab lwm yam yog sib xyaw ua ke, tsis muaj tshuaj lom, thiab muaj cov nyhuv tshem cov xim zoo. Lawv muaj cov nyhuv tshem cov xim ntawm cov xim alkyd, xim nitro, xim acrylic thiab xim perchloroethylene. Txawm li cas los xij, cov organic solvent hauv cov tshuaj pleev xim no yog cov khoom uas yooj yim tawg, yooj yim hlawv thiab muaj tshuaj lom, yog li nws yuav tsum tau siv rau hauv qhov chaw uas muaj cua zoo.

4) Cov tshuaj chlorinated hydrocarbon solvent pleev xim stripper

Cov tshuaj pleev xim chlorinated hydrocarbon daws qhov teeb meem ntawm kev pleev xim rau epoxy thiab polyurethane coatings, nws yooj yim siv, ua haujlwm tau zoo thiab tsis muaj corrosive rau cov hlau. Nws feem ntau muaj cov kuab tshuaj (cov xim pleev ib txwm siv feem ntau siv methylene chloride ua cov kuab tshuaj organic, thaum cov xim pleev niaj hnub feem ntau siv cov kuab tshuaj kub siab, xws li dimethylaniline, dimethyl sulfoxide, propylene carbonate thiab N-methyl pyrrolidone, ua ke nrog cov cawv thiab cov kuab tshuaj aromatic, lossis ua ke nrog hydrophilic alkaline lossis acidic systems), co-solvents (xws li methanol, ethanol thiab isopropyl cawv, thiab lwm yam) Activators (xws li phenol, formic acid lossis ethanolamine, thiab lwm yam), thickeners (xws li polyvinyl cawv, methyl cellulose, ethyl cellulose thiab fumed silica, thiab lwm yam), volatile inhibitors (xws li paraffin wax, ping ping, thiab lwm yam), surfactants (xws li OP-10, OP-7 thiab sodium alkyl benzene sulfonate, thiab lwm yam), corrosion inhibitors, penetration agents, wetting agents thiab thixotropic agents.

5) Cov tshuaj pleev xim uas siv dej ua ke

Nyob rau hauv Suav teb, cov kws tshawb fawb tau ua tiav tsim cov tshuaj pleev xim uas yog dej siv benzyl cawv es tsis yog dichloromethane ua cov kuab tshuaj tseem ceeb. Ntxiv rau benzyl cawv, nws kuj muaj cov tshuaj ua kom tuab, cov tshuaj tiv thaiv volatile, cov tshuaj ua kom nquag thiab cov tshuaj surfactant. Nws cov khoom xyaw yooj yim yog (qhov sib piv ntawm cov kuab tshuaj): 20% -40% cov khoom xyaw thiab 40% -60% cov khoom xyaw acidic uas yog dej nrog surfactant. Piv nrog cov tshuaj pleev xim dichloromethane ib txwm muaj, nws muaj tshuaj lom tsawg dua thiab ceev tib yam ntawm kev tshem tawm xim. Nws tuaj yeem tshem tawm cov xim epoxy, epoxy zinc daj primer, tshwj xeeb tshaj yog rau cov xim pleev xim rau ntawm dav hlau muaj cov nyhuv zoo rau kev tshem tawm xim.

Kho kom raug cov khoom siv feem ntau ntawm kab lus no

1) Cov kuab tshuaj thawj zaug

Cov tshuaj yaj tseem ceeb tuaj yeem yaj cov xim pleev xim los ntawm kev nkag mus rau hauv cov molecular thiab o, uas tuaj yeem rhuav tshem qhov kev nplaum ntawm cov xim pleev xim rau lub substrate thiab qhov chaw ntawm cov xim pleev xim, yog li benzene, hydrocarbon, ketone thiab ether feem ntau yog siv ua cov tshuaj yaj tseem ceeb, thiab hydrocarbon yog qhov zoo tshaj plaws. Cov tshuaj yaj tseem ceeb yog benzene, hydrocarbons, ketones thiab ethers, thiab hydrocarbons yog qhov zoo tshaj plaws. Cov tshuaj pleev xim uas tsis muaj tshuaj lom uas tsis muaj methylene chloride feem ntau muaj ketone (pyrrolidone), ester (methyl benzoate) thiab cawv ether (ethylene glycol monobutyl ether), thiab lwm yam. Ethylene glycol ether zoo rau polymer resin. Ethylene glycol ether muaj zog solubility rau polymer resin, permeability zoo, boiling point siab, pheej yig dua, thiab kuj yog ib qho surfactant zoo, yog li nws nquag siv nws ua cov tshuaj yaj tseem ceeb los npaj cov tshuaj pleev xim (lossis tus neeg sawv cev ntxuav) nrog cov txiaj ntsig zoo thiab ntau yam haujlwm.

Lub molecule ntawm benzaldehyde me me, thiab nws nkag mus rau hauv cov saw ntawm macromolecules yog muaj zog, thiab nws cov solubility rau polar organic matter kuj muaj zog heev, uas yuav ua rau cov macromolecules nce ntxiv thiab tsim kev ntxhov siab. Cov tshuaj lom tsawg thiab cov xim stripper qis volatility npaj nrog benzaldehyde ua cov kuab tshuaj tuaj yeem tshem tawm cov hmoov epoxy txheej ntawm qhov chaw ntawm cov hlau substrate ntawm chav tsev kub, thiab kuj tsim nyog rau kev tshem tawm cov xim tawv nqaij dav hlau. Kev ua tau zoo ntawm cov xim stripper no zoo ib yam li cov tshuaj pleev xim strippers ib txwm muaj (methylene chloride hom thiab kub alkali hom), tab sis nws tsis tshua muaj corrosive rau cov hlau substrates.

Limonene yog ib yam khoom zoo rau cov neeg pleev xim los ntawm qhov pom ntawm kev rov ua dua tshiab. Nws yog cov kuab tshuaj hydrocarbon rho tawm los ntawm cov tawv txiv kab ntxwv, cov tawv txiv kab ntxwv thiab cov tawv txiv qaub. Nws yog cov kuab tshuaj zoo heev rau cov roj, cov quav ciab thiab cov roj av. Nws muaj qhov kub siab thiab qhov kub hnyiab thiab muaj kev nyab xeeb rau kev siv. Cov kuab tshuaj ester kuj tseem siv tau ua cov khoom siv raw rau cov pleev xim. Cov kuab tshuaj ester muaj cov yam ntxwv tsis muaj tshuaj lom, tsw ntxhiab tsw qab thiab tsis yaj hauv dej, thiab feem ntau siv ua cov kuab tshuaj rau cov roj organic. Methyl benzoate yog tus sawv cev ntawm cov kuab tshuaj ester, thiab ntau tus kws tshawb fawb vam tias yuav siv nws hauv cov pleev xim.

2) Cov tshuaj sib xyaw ua ke

Cov tshuaj sib koom ua ke tuaj yeem ua rau kom cov methyl cellulose yaj ntau ntxiv, txhim kho qhov viscosity thiab ruaj khov ntawm cov khoom, thiab koom tes nrog cov tshuaj tseem ceeb kom nkag mus rau hauv cov xim pleev xim, txo qhov kev sib txuas ntawm cov xim pleev xim thiab cov khoom siv, kom ua kom cov xim pleev xim sai dua. Nws kuj tseem tuaj yeem txo qhov koob tshuaj ntawm cov tshuaj tseem ceeb thiab txo tus nqi. Cov cawv, ethers thiab esters feem ntau siv ua cov tshuaj sib koom ua ke.

3) Tus Txhawb Nqa

Tus neeg txhawb nqa yog ntau cov kuab tshuaj nucleophilic, feem ntau yog cov organic acids, phenols thiab amines, suav nrog formic acid, acetic acid thiab phenol. Nws ua haujlwm los ntawm kev rhuav tshem cov saw hlau macromolecular thiab ua kom nrawm nkag mus thiab o ntawm cov txheej. Organic acid muaj tib pawg ua haujlwm zoo li cov khoom sib xyaw ntawm cov xim pleev xim - OH, nws tuaj yeem cuam tshuam nrog lub kaw lus crosslinking ntawm oxygen, nitrogen thiab lwm yam polar atoms, tsa lub kaw lus ntawm ib feem ntawm lub cev crosslinking cov ntsiab lus, yog li ua rau cov xim stripper hauv cov organic txheej diffusion tus nqi, txhim kho cov xim pleev xim o thiab wrinkling peev xwm. Tib lub sijhawm, cov organic acids tuaj yeem catalyze lub hydrolysis ntawm ester bond, ether bond ntawm polymer thiab ua rau nws tawg qhov sib txuas, ua rau poob ntawm toughness thiab brittle substrates tom qab pleev xim stripping.

Cov dej uas tsis muaj ionized yog cov tshuaj uas muaj dielectric constant solvent siab (ε=80120 ntawm 20 ℃). Thaum qhov chaw uas yuav tsum tau stripped yog polar, xws li polyurethane, cov tshuaj uas muaj dielectric constant solvent siab muaj cov txiaj ntsig zoo rau kev sib cais qhov chaw electrostatic, yog li ntawd lwm cov tshuaj tuaj yeem nkag mus rau hauv cov qhov hws ntawm cov txheej thiab cov substrate.

Hydrogen peroxide lwj rau ntawm feem ntau cov hlau nto, tsim cov pa oxygen, hydrogen thiab ib hom atomic ntawm oxygen. Cov pa oxygen ua rau cov txheej tiv thaiv mos mos dov, cia cov xim tshiab stripper nkag mus rau ntawm cov hlau thiab cov txheej, yog li ua kom cov txheej txheem stripping sai dua. Cov kua qaub kuj yog ib qho tseem ceeb hauv cov qauv stripper xim, thiab lawv lub luag haujlwm yog tswj cov pH ntawm cov xim stripper ntawm 210-510 kom thiaj li cuam tshuam nrog cov pawg amine dawb hauv cov txheej xws li polyurethane. Cov kua qaub siv tuaj yeem yog cov kua qaub khov soluble, kua qaub kua qaub, organic acid lossis inorganic acid. Raws li inorganic acid yuav ua rau cov hlau xeb, yog li nws yog qhov zoo tshaj plaws los siv cov mis RCOOH dav dav, qhov hnyav molecular tsawg dua 1,000 soluble organic acids, xws li formic acid, acetic acid, propionic acid, butyric acid, valeric acid, hydroxyacetic acid, hydroxybutyric acid, lactic acid, citric acid thiab lwm yam hydroxy acids thiab lawv cov sib xyaw.

4) Cov Khoom Ua Kom Tuab

Yog tias siv cov tshuaj pleev xim rau cov khoom loj uas yuav tsum tau lo rau ntawm qhov chaw kom lawv ua haujlwm, nws yog qhov tsim nyog ntxiv cov khoom ua kom tuab xws li cov polymers uas yaj hauv dej xws li cellulose, polyethylene glycol, thiab lwm yam, lossis cov ntsev inorganic xws li sodium chloride, potassium chloride, sodium sulfate, thiab magnesium chloride. Nws yuav tsum tau sau tseg tias cov ntsev inorganic uas ua kom tuab kho qhov viscosity yuav nce nrog lawv cov koob tshuaj, dhau ntawm qhov ntau no, qhov viscosity yuav txo qis, thiab kev xaiv tsis raug kuj tuaj yeem cuam tshuam rau lwm yam khoom.

Cawv polyvinyl yog cov polymer uas yaj tau hauv dej, nws muaj peev xwm yaj tau zoo hauv dej, ua zaj duab xis, nplaum tau zoo thiab emulsification tau zoo, tiam sis tsuas muaj ob peb yam organic compounds xwb thiaj yaj tau, cov polyol compounds xws li glycerol, ethylene glycol thiab polyethylene glycol uas tsis hnyav molecular, amide, triethanolamine ntsev, dimethyl sulfoxide, thiab lwm yam. Yog tias cov organic solvents saum toj no yaj me ntsis polyvinyl cawv, ces yuav tsum tau cua sov kom yaj. Polyvinyl cawv nrog benzyl cawv thiab formic acid sib xyaw ua ke tsis sib haum, yooj yim sib xyaw, thiab tib lub sij hawm nws tsis yaj tau methyl cellulose, hydroxyethyl cellulose tsis zoo, tiam sis nws zoo dua rau carboxy methyl cellulose.

Polyacrylamide yog ib qho polymer uas yaj tau hauv dej, nws thiab nws cov derivatives siv tau ua flocculants, thickeners, paper enhancers thiab retarders, thiab lwm yam. Vim tias polyacrylamide molecular saw muaj amide pawg, nws yog tus cwj pwm los ntawm hydrophilicity siab, tab sis nws tsis yaj hauv feem ntau cov organic daws teeb meem, xws li methanol, ethanol, acetone, ether, aliphatic hydrocarbons thiab aromatic hydrocarbons. Methyl cellulose aqueous kua hauv benzyl cawv hom acid ruaj khov dua, thiab ntau yam dej-soluble tshuaj muaj kev sib xyaw zoo. Tus nqi ntawm viscosity nyob ntawm qhov yuav tsum tau ua, tab sis qhov thickening nyhuv tsis ncaj qha proportional rau tus nqi, nrog rau kev nce hauv tus nqi ntxiv, cov kua aqueous maj mam txo qhov kub gelation. Benzaldehyde hom tsis tuaj yeem nce los ntawm kev ntxiv methyl cellulose kom ua tiav qhov viscosity tseem ceeb.

5) Tshuaj Tiv Thaiv Kev Xeb

Yuav kom tiv thaiv tau qhov xeb ntawm lub substrate (tshwj xeeb tshaj yog magnesium thiab txhuas), yuav tsum ntxiv ib qho tshuaj tiv thaiv xeb. Qhov xeb yog ib qho teeb meem uas tsis tuaj yeem tsis quav ntsej hauv cov txheej txheem tsim khoom tiag tiag, thiab cov khoom kho nrog cov xim stripper yuav tsum tau ntxuav thiab ziab nrog dej lossis ntxuav nrog rosin thiab roj av raws sijhawm kom ntseeg tau tias cov hlau thiab lwm yam khoom tsis xeb.

6) Cov tshuaj tiv thaiv volatile

Feem ntau hais lus, cov tshuaj uas muaj permeability zoo yooj yim rau volatilize, yog li txhawm rau tiv thaiv kev volatilization ntawm cov molecules tseem ceeb ntawm cov kuab tshuaj, ib qho nyiaj ntawm volatilization inhibitor yuav tsum tau ntxiv rau hauv cov xim stripper kom txo qhov volatilization ntawm cov molecules solvent hauv cov txheej txheem ntawm kev tsim khoom, kev thauj mus los, kev khaws cia thiab kev siv. Thaum cov xim stripper nrog paraffin wax raug siv rau ntawm qhov chaw xim, ib txheej nyias ntawm paraffin wax yuav tsim rau ntawm qhov chaw, yog li cov molecules tseem ceeb ntawm cov kuab tshuaj yuav muaj sijhawm txaus los nyob thiab nkag mus rau hauv cov xim zaj duab xis kom raug tshem tawm, yog li txhim kho cov nyhuv stripping xim. Cov khoom paraffin wax khov kho ib leeg feem ntau yuav ua rau tsis zoo dispersion, thiab me me ntawm paraffin wax yuav nyob rau ntawm qhov chaw tom qab tshem tawm xim, uas yuav cuam tshuam rau rov txau. Yog tias tsim nyog, ntxiv emulsifier kom txo qhov nro ntawm qhov chaw kom cov paraffin wax thiab kua paraffin wax tuaj yeem dispersed zoo thiab nws qhov kev ruaj khov cia tuaj yeem txhim kho.

7) Cov tshuaj surfactant

Kev ntxiv cov surfactants, xws li amphoteric surfactants (piv txwv li, imidazoline) lossis ethoxynonylphenol, tuaj yeem pab txhim kho kev ruaj khov ntawm cov xim stripper thiab pab kom yaug cov xim nrog dej. Tib lub sijhawm, kev siv cov surfactant molecules nrog ob qho tib si lipophilic thiab hydrophilic ob qho khoom sib txawv ntawm surfactant, tuaj yeem cuam tshuam rau cov nyhuv solubilization; kev siv cov surfactant colloidal pawg nyhuv, yog li ntawd qhov solubility ntawm ntau yam khoom hauv cov kuab tshuaj nce ntxiv ntau heev. Cov surfactants siv feem ntau yog propylene glycol, sodium polymethacrylate lossis sodium xylenesulfonate.

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