Nyob rau hauv cov teb ntawm cov tshuaj engineering, sodium dodecylbenesulfonate yog qhov tseem ceeb tshaj plaws. Nws tsis yog tsuas yog siv dav hauv cov xab npo txhua hnub, tab sis kuj ua lub luag haujlwm tseem ceeb hauv ntau cov txheej txheem ntau lawm. Ib qho kev nkag siab tob ntawm sodium dodecylbenesulfonate tuaj yeem pab peb nkag siab zoo dua nws tus nqi thiab muaj feem cuam tshuam hauv ntau thaj teb.
Cov Lus Qhia Yooj Yim ntawm Sodium Dodecylbenesulfonate
Sodium dodecylbenesulfonate, abbrediated li SDBS. Los ntawm cov qauv molecular pom zoo, nws yog raws cov ntxhiab tsw qab, nrog alkyl chains khi rau cov paj ntaub uas muaj ntxhiab. Nyob rau hauv nws molecule, muaj sab saw nrog ob qho kev ncaj thiab ceg tawv. Txawm li cas los xij, vim yog cov biodegradity ntawm branched alkyl benzene sulfonate thiab nws cov pa paug, ncaj alkyl benzene sulfonate tau siv dav niaj hnub no. Lub caij no, cov sulfonic acid pawg thiab dodecyl pawg hauv sodium dodecylbenesulfonate tuaj yeem siv daim ntawv Ortho -, thiab meta isomeric benzene rings ntawm lub nplhaib Benzene.
Nyob rau hauv tsos, nws zoo li dawb los yog daj ntseg daj hmoov, nrog rau hauv daim ntawv ntawm cov plaub ya los yog me me. Nws qhov ntom ntom yog 1.05g / cm ³, melting point yog ntau dua 300 degree, thiab boiling point yog 100 degree. Cov tshuaj no yog yooj yim soluble hauv dej, nrog solubility ntawm 20g / 100ml ntawm 25 degree, tab sis nws muaj tus yam ntxwv ntawm yooj yim nqus ya raws thiab clumping. Nyob rau hauv cov nqe lus ntawm cov khoom siv tshuaj lom neeg, sodium dodecylbenesulfonate belongs kom muaj zog acid thiab lub luj taws muaj zog. Nws cov tshuaj chemical yog qhov ruaj khov, tsis yooj yim oxidized, thiab tsis yog overged nag lossis dej ntau, magnesium, thiab hlau ions. Yog li ntawd, nws tuaj yeem siv rau hauv dej nyuaj thiab qaug zog acidic daws teeb meem. Nyob rau tib lub sijhawm, nws tseem yog nplaim taws.
Kev npaj txoj kev
The preparation of sodium dodecylbenzenesulfonate mainly involves two key steps: alkylation and sulfonation. Firstly, alkylation feem ntau nqa tawm siv alpha olfins lossis chlorododecane muaj tsuas yog kaum ob carbons li cov ntaub ntawv raw, uas yauv mus ua alkene. Tom ntej yog cov txheej txheem Sulfifon. Hom Sulforation Cov Qauv muaj xws li H ₂ Yog li ₄ Sulfonation, et) cov ntaub ntawv raw sulfonation yog txhua yam dodecylbenzene tau los ntawm alkylation cov tshuaj tiv thaiv.
Hauv chav kuaj, vim muaj qee qhov mob me, muaj cov txiv ntoo sulfuric acid feem ntau siv rau sulfonation. Txawm li cas los xij, cov qauv no muaj qee cov kev tsis sib haum, xws li cov kev tsis txaus siab li no, uas muaj kev cuam tshuam nrog cov tshuaj tiv thaiv kev nrawm nrawm thiab yuav luag tag nrho hauv ib qho tseem ceeb. Txawm li cas los xij, qhov no tseem ua rau muaj ntau sab kev tawm tsam, thiab cov txheej txheem txheej tom ntej yog cov nyom thiab ntau. Txawm hais tias tus chlorosulfonic acid sulfonent txoj kev tuaj yeem nqa tawm ntawm chav tsev kub, thiab muaj cov tshuaj tiv thaiv kev ceev, thiab cov roj hydrogen chloride roj yog tseem tsim tawm thaum lub sij hawm cov txheej txheem kev tiv thaiv. Tom qab sulfation cov kev tawm tsam, dodecylbenesulfonic acid tau, uas yog ces neutralized nrog sodium hydroxide mus ua sodium dodecylbenesulfonate.
Daim Ntawv Thov
(1) daim teb xab npob
Sodium dodecylbenesulfonate, raws li feem ntau siv hluavtaws surfactant nyob rau hauv tsev xab npum, muaj qhov tseem ceeb. Nws muaj cov nqi tsim muaj tsawg, ua tau zoo, thiab yog qhov yooj yim sib xyaw nrog ntau yam ntxiv. Hais txog kev ntxuav tu, nws muaj cov teebmeem raug tshem tawm ntawm cov av granular, cov av protens, thiab cov dej uas ntxuav ntawm cov hmoov av uas yog cov hmoov av. Nws cov tshuaj ntxuav yuav nce ntxiv nrog kev nce tshuab ntxhua khaub ncaws, thiab nws cov kev ua tau zoo ntawm kev kho cov protein av zoo dua li ntawm kev ua npuas ncauj nplua nuj. Vim nws qhov kev ruaj ntseg siab rau oxidants thiab solubility hauv dej, linear alkylbenzene yog qhov tshwj xeeb rau kev npaj cov khaub ncaws tshuaj ntxuav tes nrog ntxiv cov tshuaj tiv thaiv tshuaj ntsuab. Nws tseem dav siv hauv kev tu ua haujlwm hauv kev lag luam textile.
(2) Lwm yam kev lag luam
Hauv kev lag luam drilling, nws yog ib tus neeg sawv cev ua npuas. Ua npuas ncauj thiab ua npuas ncauj Drilling kua yog siv dav hauv cov roj thiab roj hluav taws xob nqa khoom, roj muaj zog nqa tau, roj thiab roj drilling ceev. Raws li tus neeg sawv cev ua npuas ncauj, sodium dodecylbenzene suleczene ua lub luag haujlwm tseem ceeb hauv kev ua npuas ncauj ruaj khov. Nyob rau hauv lub teb ntawm inkjet luam ntawv, thaum siv cov kuab tshuaj xws li dej, lossis cov kuab tshuaj rau graphylbenesulfonate tuaj yeem txhim kho qhov ruaj khov thiab tshuab luam ntawv ntawm tus number case thiab pretability ntawm number case.
Hauv kev ua liaj ua teb, nws tau siv rau kev tswj hwm thiab kev tshem tawm ntawm cov qoob loo mites. Cov kev sim tau qhia tias raws li nws cov kev xav tau nce, lub sijhawm hu tau luv, thiab cov txiaj ntsig mite tau zoo dua li metronidazole ntawm tib lub ntsiab lus.
Ntxiv rau, sodium dodecylbenesulfonate tuaj yeem siv los ua emulsifier thiab antistatic tus neeg sawv cev, luam tawm thiab dyying; In the process of mineral flotation, as a flotation agent, it changes the physical and chemical properties of the mineral surface and regulates the floatability of the mineral; Hauv fiber ntau lossis cov ntaub ua kom huv, nws txhawb nqa kev ntub dej nrawm nrawm ntawm nws cov npoo av uas muaj ua kom txaus ntshai thiab ntxiv rau hauv cov khoob hauv cov fibers thiab tiv toj siab; Hauv kev lag luam tawv, nws tuaj yeem siv los ua cov neeg sawv cev soaking kom ntxuav thiab huv cov npoo ntawm cov ntawv tawv, thiab tseem tuaj yeem txhawb nqa degrees; Ua raws li ib qho degreaser hauv kev lag luam electroplating; Siv los ua tus neeg sawv cev hauv cov ntawv lag luam.
Kev Ruaj Ntseg
(1) toxicity thiab phom sij
Los ntawm cov tshuaj lom zem, LD5 {{4 4}} rau qhov ncauj kev txhaj tshuaj hauv nas yog 1 {0 5mg / kg. Choj Toxicity Soj ntsuam ntawm nas pom tias kev pub mis rau 2 xyoos tsis yog cov tshuaj lom neeg tsis muaj tshuaj lom thiab tsis muaj ntawv ceeb toom txog kev lom zem. Txawm li cas los xij, nws cov kev daws teeb meem muaj qee qhov kev voos ntawm daim tawv nqaij thiab cov ntaub nyias nyias yuav ua rau tawv nqaij tawv nqaij rau cov tawv nqaij.
Hais txog ib puag ncig, raws li cov xwm txheej phem tshaj tawm ob qho tib si, Sodium Dodecylbenesulfonate tau muaj qee qhov muaj sia nyob hauv nroog muaj sia nyob txawm ntau dua. Qhov no ceeb toom rau peb tias kev tiv thaiv kev ua paug thiab tswj tau, peb yuav tsum txhawb kev tiv thaiv kev tiv thaiv nroog nroog thiab tswj kav dej ntawm kev lag luam thiab dej phwj.
(2) Kev pab ua ntej, to thiab kev ntsuas tua hluav taws
Yog hais tias sodium dodecylbenesulfonate inhally inhally muaj kev nqus tau, tus neeg lom Yog tias kev haus cawv tshwm sim, yaug koj lub qhov ncauj tam sim ntawd thiab ua kom ntuav rau cov neeg paub meej thiab nrhiav kom tau kev kho mob sai li sai tau. Thaum nyob hauv kev sib cuag nrog daim tawv nqaij, nws yog ib qho tseem ceeb kom tshem tawm cov khaub ncaws tsis huv sai li sai tau thiab yaug ntawm daim tawv nqaij sib chwv nrog dej thiab xab npum. Tom qab kev sib cuag, yaug lub qhov muag nrog dej kom ntau rau ob peb feeb. Yog tias hnav cov ntsiab muag sib tiv paus, tshem lawv tam sim ntawd thiab nrhiav kev kho mob sai li sai tau.
Thaum muaj dej xau, yog tias muaj hluav taws ib puag ncig, tsim nyog tua hluav taws xob tsim nyog yuav tsum siv. Kev khiav tawm haujlwm sai sai ntawm thaj chaw tsis huv rau thaj chaw nyab xeeb thiab cais tawm tam sim ntawd cais lawv. Faib 1500m martial txoj cai thaj tsam thiab nruj me ntsis txwv txoj cai nkag mus. Nws raug nquahu kom cov neeg teb thaum muaj xwm txheej ceev kev ua pa zoo li ntau tau los tiv thaiv kom tsis txhob muaj cov dej phwj tuaj ua ke xws li cov dej phwj tuaj thiab cov dej phwj tuaj thiab dej ntws tawm. Thaum muaj ib qho xau me me, nws tuaj yeem sib xyaw nrog cov xuab zeb, kua txiv qhuav lossis dej so nrog dej thiab muab tso rau hauv cov dej khib nyiab. Yog tias muaj qhov dej xau ntau, nws yog qhov tsim nyog los tsim cov pa roj lossis khawb rau cov thawv roj hmab lossis cov neeg khaws cia nrog cov chaw pov tseg rau kev pov tseg.
Hais txog kev cia, vim cov tshuaj tiv thaiv ntawm sodium dodecylbenesulfonate thiab acid, nws yog ib qho tseem ceeb kom tsis txhob muaj cov xwm txheej acidic.
Sodium dodecylbenesulfonate ua lub luag haujlwm irreplaceable hauv ntau thaj teb vim nws tshwj xeeb lub cev muaj zog. Tab sis tib lub sijhawm, peb kuj yuav tsum tau them sai sai ntawm nws cov kev siv ntawm tib neeg lub cev thiab ib puag ncig tsim nyog thiab tsim nyog siv tau ua haujlwm zoo dua tib neeg.