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Kev faib tawm thiab kev siv cov tshuaj ntxuav
Cov Tshuaj Ntxuav Tsev Neeg Kev ntxuav tsev neeg yog hais txog kev ntxuav thiab kev saib xyuas cov tsev lossis cov khoom siv hauv kev lag luam, xws li ntxuav cov plag tsev, phab ntsa, rooj tog, ntaub pua plag, qhov rooj, qhov rai, thiab chav dej, nrog rau kev ntxuav cov pob zeb, ntoo, hlau, thiab iav. Cov tshuaj ntxuav no feem ntau...Nyeem ntxiv -
(Cawv rog) - ib qho ntawm cov tswv cuab tseem ceeb ntawm surfactants
Cawv rog yog dab tsi? Cawv rog yog cov cawv aliphatic nrog cov saw hlau carbon ntawm 8 txog 22 carbon atoms. Cov cawv rog feem ntau muaj cov lej sib npaug ntawm cov carbon atoms thiab ib pawg hydroxyl txuas rau qhov kawg ntawm cov saw hlau carbon. Lawv yog ib qho ntawm cov khoom siv raw rau surfactants siv hauv cov tshuaj ntxuav,...Nyeem ntxiv -
Daim Ntawv Thov Surfactants Hauv Kev Tsim Kho Txoj Kev Loj
Cov tshuaj surfactants (tseem hu ua cov tshuaj surfactants) yog cov tshuaj pabcuam tseem ceeb hauv kev txhim kho kev lag luam thiab kev ua liaj ua teb, nrog rau qhov zoo ntawm kev ua tiav cov txiaj ntsig tseem ceeb nrog cov koob tshuaj me me. Tshwj xeeb tshaj yog tom qab Tsov Rog Thoob Ntiaj Teb Zaum Ob, nrog rau kev txhim kho kev lag luam petrochemical, ra...Nyeem ntxiv -
Daim ntawv thov ntawm surfactants hauv kev tsim cov roj av
1, Cov tshuaj surfactants siv rau kev rho tawm roj hnyav Vim yog qhov viscosity siab thiab tsis zoo ntawm cov roj hnyav, nws coj ntau yam teeb meem rau kev siv. Txhawm rau rho tawm cov roj hnyav zoo li no, cov kua dej ntawm surfactants qee zaum raug txhaj rau hauv lub qhov dej kom hloov cov roj hnyav siab-viscosity mus rau hauv qis ...Nyeem ntxiv -
Lub mechanism ntawm kev ua haujlwm ntawm surfactant solubilizers thiab cov yam ntxwv cuam tshuam rau kev solubilization
Hauv kev tshawb fawb txog chemistry, qee cov organic compounds, vim lawv cov khoom tsis yaj lossis yaj me ntsis hauv dej, coj ntau yam tsis yooj yim rau kev siv. Txawm li cas los xij, thaum cov organic compounds no sib koom ua ke nrog surfactants, lawv cov solubility nce ntxiv, ib qho xwm txheej k ...Nyeem ntxiv -
Cationic surfactant
Cov tshuaj cationic surfactants feem ntau yog cov organic amine derivatives uas muaj nitrogen. Txij li thaum cov nitrogen atom hauv lawv cov molecules muaj ib khub electrons, nws tuaj yeem sib xyaw nrog cov hydrogen hauv cov kua qaub molecules los ntawm cov hydrogen bonds, ua rau cov amino pawg nqa ib qho posi...Nyeem ntxiv -
Kev Ua Haujlwm ntawm Cov Tshuaj Ntxuav Khaub Ncaws - Ntau Hom Tshuaj Ntxuav Khaub Ncaws
Cov tshuaj ntxuav tes ua haujlwm ntawm cov surfactants yog ib qho tseem ceeb uas muab cov surfactants rau lawv qhov kev siv tau zoo tshaj plaws. Nws koom nrog hauv lub neej txhua hnub ntawm ntau txhiab tsev neeg. Ntxiv mus, nws tau raug siv ntau dua hauv ntau yam lag luam thiab txhua yam kev tsim khoom lag luam. Cov tshuaj ntxuav tes S...Nyeem ntxiv -
Cov nyhuv tiv thaiv kev ua haujlwm ntawm surfactants
Qhov ua kom huv ntawm cov surfactants yog ib qho khoom tseem ceeb uas muab cov surfactants rau lawv cov kev siv zoo tshaj plaws. Nws koom nrog hauv lub neej txhua hnub ntawm ntau txhiab tsev neeg. Ntxiv mus, nws tau siv ntau dua hauv ntau yam lag luam thiab txhua yam kev tsim khoom lag luam. Cov nyhuv tiv thaiv hluav taws xob ntawm surfactan...Nyeem ntxiv -
Kev siv cov tshuaj surfactants uas tsis tshua muaj npuas hauv kev ntxuav kev lag luam
Hauv kev ntxuav hauv kev lag luam, ua npuas dej tsis yog tsuas yog cuam tshuam rau kev ntxuav kom huv xwb, tab sis kuj nyuaj rau yaug tawm, yooj yim muaj cov khoom seem, thiab tej zaum yuav ntws tawm ntawm cov khoom siv ntxuav, ua rau muaj khib nyiab. Ntxiv mus, ua npuas dej tuaj yeem nqa cov surfactants tawm ntawm cov kua ntxuav. Yog li ntawd, nws yog qhov tsim nyog siv cov khoom siv qis-fo...Nyeem ntxiv -
Cov txheej txheem rau kev tshem roj thiab ntxuav cov hlau!
Hauv cov txheej txheem tsim cov khoom siv hlau, cov roj nplua nyeem yog cov roj nplua nyeem uas siv los txo qhov kev sib txhuam ntawm cov khub sib txhuam thiab qeeb lawv cov hnav. Cov roj nplua nyeem kuj ua lub luag haujlwm xws li txias, ntxuav, thiab tiv thaiv kev ua qias tuaj rau cov khub sib txhuam. Txawm li cas los xij, kev siv cov roj nplua nyeem yuav...Nyeem ntxiv -
Muaj ntau yam tshuaj tua kab uas pab ntxiv rau, koj puas paub tias muaj pes tsawg hom?
Cov tshuaj ntxiv rau cov tshuaj tua kab yog cov tshuaj ntxiv thaum lub sijhawm ua cov tshuaj tua kab los txhim kho cov khoom siv lub cev thiab tshuaj lom neeg ntawm cov neeg sawv cev, tseem hu ua cov tshuaj ntxiv rau cov tshuaj tua kab. Cov tshuaj ntxiv rau lawv tus kheej tsis muaj kev ua haujlwm ntawm lub cev, tab sis lawv tuaj yeem cuam tshuam rau kev tswj hwm e...Nyeem ntxiv -
Kev Siv Cov Surfactants Hauv Cov Txheej Txheem
Kev faib tawm ntawm daim ntawv thov ntawm surfactants hauv coatings: Faib los ntawm lawv cov haujlwm, surfactants siv hauv kev lag luam txheej txheem tuaj yeem muab faib ua cov pawg hauv qab no: emulsifiers, pigment kho qhov chaw, pigment wetting thiab dispersing agents, defoamers, leveling agents, mil...Nyeem ntxiv
