Shaanxi BLOOM Tech Co., Ltd. yog ib tug ntawm cov uas paub txog manufacturers thiab lwm tus neeg ntawm butylated hydroxytoluene (bht) cas 128-37-0 nyob rau hauv Suav teb. Txais tos rau cov lag luam wholesale zoo siab butylated hydroxytoluene (bht) cas 128-37-0 muag ntawm no los ntawm peb lub hoobkas. Kev pabcuam zoo thiab tus nqi tsim nyog muaj.
Butylated hydroxyluene (BHT), tseem hu ua antioxidant 264, CAS 128-37-0, Molecular formula C15H24O, antioxidant 264,2, 2,6-di-t-}butyl-p-cresol, 2,6-di-methy-t-butyl. Nws yog lub teeb daj hmoov, thiab cov khoom ntshiab yog dawb siv lead ua. Cov xim hloov daj thaum nws ntsib lub teeb, thiab maj mam tob zuj zus. Soluble nyob rau hauv benzene, toluene, methanol, ethanol, isopropanol, butanone, petroleum ether, carbon tetrachloride, ethyl acetate, insoluble nyob rau hauv dej thiab dilute alkali kua. Cov yam ntxwv tshuaj: 264 muaj kev tiv thaiv tiv thaiv tshav kub thiab oxygen laus, thiab yog nplaim taws.
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Tshuaj Formula |
C15H24O |
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Exact Mass |
220 |
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Molecular Luj |
220 |
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m/z |
220 (100.0%), 221 (16.2%), 222 (1.2%) |
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Elemental Analysis |
C, 81.76; H, 10.98; O, 7.26 |
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Nws tuaj yeem cuam tshuam lossis ncua sijhawm oxidation degradation ntawm cov yas lossis roj hmab thiab ua kom lub neej ua haujlwm ntev. Nws yog ib qho zoo heev antioxidant additive rau ntau yam roj av khoom. Nws yog dav siv nyob rau hauv ntau yam lubricating roj, roj av, paraffin thiab ntau yam roj raw khoom los tiv thaiv qhov nce ntawm acid nqi los yog viscosity ntawm lubricating roj thiab roj roj. Raws li cov zaub mov antioxidant thiab stabilizer hauv cov zaub mov qib plastics thiab ntim khoom noj, nws tuaj yeem ncua cov zaub mov rancidity.
Butylated hydroxyluene (BHT), tshuaj lub npe 2,6-di-tert-butyl-4-methylphenol, tseem hu ua BHT, antioxidant 264, antioxidant thiab anti-glue agent T501, thiab lwm yam., CAS rau npe 128-37-0, yog ib tug dav siv phenolic antioxidant.
Roj hmab kev lag luam
(1) Universal tiv thaiv -aging agent
Antioxidant 264 yog feem ntau siv phenolic antioxidant rau ntuj roj hmab thiab hluavtaws roj hmab, xws li styrene butadiene roj hmab, butyl roj hmab, nitrile roj hmab, thiab ethylene propylene roj hmab. Nws muaj qee yam kev tiv thaiv ntawm thermal thiab oxygen aging, uas tuaj yeem cuam tshuam lossis ncua oxidative degradation ntawm roj hmab, yog li txuas ntxiv lub neej kev pab cuam ntawm cov khoom siv roj hmab. Hauv kev lag luam roj hmab, cov tshuaj tua kab mob antioxidant 264 tau siv dav thiab tuaj yeem siv los tsim ntau yam xim thiab lub teeb xim roj hmab cov khoom, cov khoom latex, thiab lwm yam.
Piv txwv li, hauv kev tsim cov khoom dawb, lub teeb xim, thiab cov khoom siv roj hmab pob tshab xws li khau roj hmab thiab cov khoom siv roj hmab, cov tshuaj antioxidant 264 tuaj yeem ua lub luag haujlwm zoo los tiv thaiv - kev laus, ua kom cov khoom zoo thiab kev ua haujlwm zoo.
(2) Raw roj hmab tiv thaiv thiab siv cov khoom latex
Antioxidant 264 tsis tuaj yeem tsuas yog siv rau hauv kev tsim cov khoom siv roj hmab, tab sis kuj yog ib qho kev tiv thaiv rau cov roj hmab nyoos los tiv thaiv oxidation thiab deterioration thaum khaws cia thiab kev thauj mus los.
Hauv kev tsim cov khoom lag luam latex, antioxidant 264 tuaj yeem ua rau hauv kev sib cais thiab sib xyaw ncaj qha rau hauv latex los txhim kho cov khoom antioxidant ntawm cov khoom latex. Piv txwv li, hauv kev tsim cov khoom kho mob thiab kev noj qab haus huv, antioxidant 264 tuaj yeem ua kom cov khoom zoo thiab kev nyab xeeb ntawm cov khoom thiab ua rau lawv lub neej kev pab.
(3) Kev tiv thaiv kev laus ntau yam
Antioxidant 264 muaj qee yam kev tiv thaiv ntawm cov roj hmab ntuj, styrene butadiene roj hmab, thiab chloroprene roj hmab thaum lub sij hawm thermal oxidative laus, thiab tseem muaj qee yam kev tiv thaiv ntawm cov duab laus thiab kab tsuag.
Thaum siv cov khoom siv roj hmab, lawv raug cuam tshuam los ntawm ntau yam xws li cua sov, oxygen, thiab lub teeb, ua rau kev laus thiab kev puas tsuaj ntawm cov roj hmab. Antioxidant 264 tuaj yeem cuam tshuam cov tshuaj tiv thaiv oxidation ntawm roj hmab thiab txo cov tiam ntawm cov khoom laus los ntawm kev tshem tawm cov dawb radicals, yog li tiv thaiv kev ua haujlwm ntawm cov khoom siv roj hmab. Piv txwv li, nyob rau sab nraum zoov siv cov khoom siv roj hmab, cov tshuaj tua kab mob antioxidant 264 tuaj yeem tiv thaiv cov roj hmab los ntawm kev noj qab haus huv ntawm cov duab laus vim yog lub teeb raug, tswj cov tsos thiab kev ua haujlwm ntawm cov khoom.
Kev lag luam yas
(1) General antioxidant 3
Antioxidant 264 yog ib qho pheej yig tshaj plaws antioxidant rau polyethylene, polypropylene, polystyrene, ABS resin, polyester, cellulose resin thiab foam plastics, tshwj xeeb tshaj yog tsim rau cov khoom siv dawb los yog lub teeb xim. Thaum lub sij hawm ua thiab siv cov yas, lawv raug cuam tshuam los ntawm tej yam xws li tshav kub thiab oxygen, ua rau oxidative degradation thiab txo lawv cov khoom, xws li discoloration, brittleness, thiab lub zog. Antioxidant 264 tuaj yeem cuam tshuam cov tshuaj tiv thaiv oxidation ntawm cov yas thiab txuas ntxiv lub neej kev pab cuam ntawm cov khoom yas los ntawm kev ntes cov dawb radicals thiab lwm txoj kev.
Piv txwv li, hauv kev tsim cov khoom noj khoom haus qib plastics thiab cov khoom siv polymer rau ntim khoom noj, antioxidant 264 tuaj yeem ua kom zoo thiab kev nyab xeeb ntawm cov khoom yas, tiv thaiv cov khoom noj kom tsis txhob muaj kab mob vim yog cov yas oxidation.
(2) Kev siv ntau npaum li cas thiab kev siv cov yas sib txawv
Hauv polyethylene thiab polyvinyl chloride, qhov ntau npaum ntawm cov tshuaj tua kab mob antioxidant 264 feem ntau yog 0.01% -0.1%, uas tuaj yeem cuam tshuam cov xim thiab lub zog ntawm cov yas. Hauv polystyrene thiab ABS resins, ntau npaum li cas tsawg dua 1% tuaj yeem tiv thaiv kev hloov pauv ntawm cov khoom yas vim oxidation. Hauv cellulose resin, antioxidant 264 tuaj yeem tiv thaiv cov resin los ntawm thermal aging thiab photo aging, thiab qhov ntau npaum li cas kuj tsawg dua 1%.
Txawm hais tias qhov kev ua tau zoo ntawm cov tshuaj antioxidant 264 yuav tsis txaus rau qee yam piv rau cov tshuaj tiv thaiv antioxidants xws li 1010 thiab 1076, nws tseem muaj ntau yam kev siv hauv qee cov khoom yas uas yuav tsum tau muaj tus nqi siab thiab tsis yog qhov tshwj xeeb ntawm kev ua tau zoo.
(3) Kev sib piv nrog lwm cov tshuaj antioxidants thiab daim ntawv thov tiam sis
Antioxidant 1010 yog ib qho kev ua haujlwm siab -kev ua haujlwm antioxidant dav siv hauv polyethylene, polypropylene, polyoxymethylene, ABS resin, PS resin PVC, Engineering plastics, roj hmab, thiab cov khoom siv roj av, thiab lwm yam. Piv nrog antioxidant 264, antioxidant 1010 muaj kev ua haujlwm antioxidant zoo dua, tab sis nws cov nqi kuj yog siab heev.
Antioxidant 1076 yog ib qho zoo heev uas tsis muaj kuab paug thiab tsis yog - tshuaj tua kab mob antioxidant nrog cov cua kub zoo thiab dej extraction kuj.Butylated hydroxyluene (BHT)yog dav siv hauv polyolefins, polyamides, polyesters, polyvinyl chloride, ABS resins, thiab roj av khoom. Nws yog feem ntau siv ua ke nrog antioxidant DLTP los txhim kho nws cov nyhuv antioxidant. Nyob rau hauv xyoo tas los no, vim qhov hnyav molecular thiab siab volatility ntawm antioxidant 264, nws cov nyhuv antioxidant tau txo qis hauv qee cov khoom yas ua tiav ntawm qhov kub thiab txias thiab khaws cia ntev. Yog li ntawd, nws tau maj mam hloov los ntawm lwm yam tsawg volatility antioxidants txawv teb chaws. Txawm li cas los xij, hauv qee lub tebchaws tsim thiab thaj chaw tshwj xeeb, cov tshuaj tiv thaiv antioxidant 264 tseem tuav ib feem tseem ceeb.
Petroleum kev lag luam
(1) Lubricant antioxidant
Antioxidant 264 yog ib qho zoo heev antioxidant rau ntau yam roj lubricating, uas tuaj yeem tiv thaiv qhov nce ntawm cov kua qaub lossis viscosity tshwm sim los ntawm oxidation ntawm cov roj lubricating thiab ua kom lawv lub neej ua haujlwm ntev. Thaum lub sij hawm siv cov roj lubricating, nws raug cuam tshuam los ntawm cov yam ntxwv xws li kub siab, kub siab, thiab hlau catalysis, ua rau oxidation cov tshuaj tiv thaiv thiab tsim cov kua qaub thiab colloids, ua rau txo qis hauv kev ua haujlwm ntawm cov roj lubricating.
Antioxidant 264 tuaj yeem cuam tshuam cov tshuaj tiv thaiv oxidation ntawm lubricating roj los ntawm kev ntes cov dawb radicals thiab tswj kev ruaj ntseg ntawm lubricating roj kev ua haujlwm. Piv txwv li, nyob rau hauv automotive engine lubricating roj, muaj iav lubricating roj, thiab lwm yam., antioxidant 264 tuaj yeem ua kom lub cev lubrication kev ua tau zoo ntawm cov roj lubricating thiab txo cov khoom siv tshuab.
(2) Antioxidant cov khoom ntawm cov roj ntxhia ua tiav qib ob xws li roj av thiab paraffin
Ntxiv rau cov roj lubricating, antioxidant 264 kuj tuaj yeem siv los ua cov tshuaj tiv thaiv antioxidant rau kev ua haujlwm thib ob ntawm roj av, paraffin, thiab lwm yam roj ntxhia. Thaum lub sij hawm cia thiab siv cov roj av, cov khoom xws li cov pos hniav yog tsim los ntawm oxidation, ua rau txo qis hauv cov roj av zoo thiab cuam tshuam rau kev ua haujlwm ntawm lub cav. Antioxidant 264 tuaj yeem tiv thaiv oxidation thiab deterioration ntawm roj av, thiab tswj kev ruaj ntseg ntawm roj av kev ua haujlwm. Hauv cov roj ntxhia xws li paraffin, antioxidant 264 kuj tuaj yeem ua rau cov tshuaj tiv thaiv antioxidant, ncua kev pab cuam lub neej ntawm cov roj ntxhia.
(3) Kev sib koom ua ntawv thov nrog lwm cov khoom siv roj av
Antioxidant 264 tuaj yeem siv ua ke nrog lwm cov tshuaj antioxidants thiab cov khoom ntxiv los txhim kho cov antioxidant thiab tag nrho kev ua haujlwm ntawm cov khoom siv roj av. Piv txwv li, thaum siv nrog antioxidant DLTP, nws tuaj yeem txhim kho cov nyhuv antioxidant thiab txuas ntxiv lub neej kev pab cuam ntawm cov khoom siv roj av. Hauv qee cov khoom siv roj av siab - kawg, ntau yam tshuaj tua kab mob antioxidants thiab cov khoom siv ntxiv tau ntxiv los ua kom tau raws li qhov ua tau zoo thiab cov kev xav tau zoo ntawm cov khoom.
Kev lag luam zaub mov
(1) Noj cov roj antioxidant
Antioxidant 264 yog ib qho antioxidant zoo rau cov roj thiab cov rog, uas tuaj yeem tiv thaiv cov roj thiab cov rog los ntawm kev ua rancid vim oxidation thiab txuas lawv lub neej txee. Thaum lub sij hawm cia thiab ua cov roj thiab cov rog, lawv raug cuam tshuam los ntawm tej yam xws li tshav kub, oxygen, thiab lub teeb, ua rau oxidation cov tshuaj tiv thaiv thiab tsim cov peroxides, aldehydes, ketones, thiab lwm yam khoom.
Qhov no tuaj yeem ua rau cov roj thiab cov rog ua rau cov ntxhiab tsw, hloov xim, thiab txo lawv cov khoom noj muaj txiaj ntsig. Antioxidant 264 tuaj yeem cuam tshuam cov tshuaj tiv thaiv oxidation ntawm cov roj thiab tswj cov roj zoo los ntawm kev ntes cov dawb radicals thiab lwm txoj hauv kev. Raws li Suav cov kev cai, antioxidant 264 tuaj yeem siv rau cov roj noj, cov khoom noj kib, biscuits, instant noodles, instant mov, kaus poom txiv ntoo, cov khoom ntses qhuav, thiab kho cov nqaij, nrog rau ntau npaum li cas ntawm 0.2g / kg.
(2) Antioxidants nyob rau hauv cov khoom noj uas muaj tsiaj thiab cog roj thiab rog
Ntxiv rau cov roj thiab cov rog, cov tshuaj antioxidant 264 kuj tau siv dav hauv cov khoom noj uas muaj tsiaj thiab zaub roj thiab cov rog, xws li roj, butter, cov ntses qhuav thiab cov ntses plhaub, cov ntses ntsev thiab cov ntses ntses, cov khoom noj khov whale, thiab lwm yam, nrog rau kev noj tsawg dua 0.2 grams ib kilogram; Qhov ntau npaum hauv cov pos hniav yog qis dua 0.75 grams ib kilogram. Nws tuaj yeem tiv thaiv cov khoom noj los ntawm kev lwj vim roj oxidation thiab tswj cov saj thiab kev noj haus ntawm cov zaub mov. Piv txwv li, hauv qee cov zaub mov kib, antioxidant 264 tuaj yeem tiv thaiv cov roj oxidation thiab lwj, ua kom cov zaub mov crispy thiab muaj xim zoo.
(3) Kev siv hauv tshuab ua zaub mov
Kev siv ntawmButylated hydroxyluene (BHT)suav nrog txoj kev immersion, txoj kev sib xyaw ncaj qha, txoj kev sib tov yaj hauv ethanol thiab txoj kev tshuaj tsuag. Hauv cov txheej txheem ntawm kev ua zaub mov, cov txheej txheem ntxiv tsim nyog tuaj yeem xaiv raws li ntau hom khoom noj thiab cov txheej txheem ua. Piv txwv li, hauv qee cov khoom noj khoom haus, antioxidant 264 tuaj yeem muab ntxiv rau hauv cov khoom noj uas siv impregnation lossis sib xyaw ncaj qha; Hauv qee cov khoom noj ua kua, nws tuaj yeem muab ntxiv los ntawm kev sib xyaw lossis tshuaj tsuag tom qab yaj hauv ethanol.
Syntheticbutylated hydroxyluene (BHT):
(1) Muab cov molar piv ntawm p-cresol thiab t-butanol 1:1.1 rau hauv cov tshuaj tiv thaiv hluav taws xob rau cua sov thiab kev sib cais.
Nyob rau hauv qhov kev txiav txim ntawm catalyst phosphoric acid, cov tshuaj tiv thaiv yog nqa tawm nyob rau hauv muaj zog stirring ntawm 65-70 degree;
Tom qab cov tshuaj tiv thaiv tiav lawm, cov khoom siv tshuaj tiv thaiv yog thawj zaug ntxuav nrog 10% sodium hydroxide tov rau alkaline, thiab tom qab ntawd ntxuav nrog dej kom nruab nrab;
Tshem tawm cov kuab tshuaj thiab recrystallize nrog ethanol kom tau txais cov khoom tiav.
CH3C6H4OH+(CH3)3COH[H3PO4] → BHT
(2) Isobutylene tau nkag mus rau hauv qhov sib xyaw ntawm 98% p-cresol thiab 2% concentrated sulfuric acid thiab ua rau ntawm 65-70℃rau 5 h;
Ntxuav cov kua qaub nrog dej kub ntawm 60 degree, thiab tom qab ntawd ntxuav nrog 10% NaOH thiab dej kub kom nruab nrab kom tau txais cov khoom nyoos.
Dissolve cov khoom crude nyob rau hauv 50% kub ethanol, ntxiv 0.5% thiourea, lim nws thaum kub, co nws qhuav, thiab qhuav kom tau cov khoom tiav.
Cov yield yog siab li 90% ~ 95%, purity yog 99.5%, thiab melting point> 69.5 degree.
Nyob rau hauv kev lag luam, lub ntsiab thiab auxiliary yees yog kev cob cog rua nyob rau hauv series.
Ua ntej, p-cresol thiab catalyst tau ntxiv rau hauv lub ntsiab thiab cov tuam tsev pabcuam, thiab qhov kub ntawm cov pej thuam tseem ceeb yog tswj ntawm 65-80 degree, thiab qhov kub ntawm cov neeg pab ntauwd yog tswj ntawm 50-70℃.
Isobutylene gas yog qhia los ntawm hauv qab ntawm lub ntsiab pej thuam, feem ntau ntawm cov reacts nrog p-cresol nyob rau hauv lub ntsiab pej thuam, thiab tus so tawm los ntawm lub sab saum toj ntawm lub ntsiab pej thuam thiab nkag mus rau hauv qab ntawm lub sub pej thuam mus ntxiv reacts nrog p-cresol.
Cov tshuaj tiv thaiv kab mob ntawm lub ntsiab pej thuam yog tswj ntawm 4-5h. Tom qab cov tshuaj tiv thaiv tiav lawm, cov roj isobutylene raug tso tseg, 20% NaOH tov yog ntxiv, thiab cov roj compressed yog npuas.
Cov khoom lag luam neutralized alkylation tau muab cais rau hauv cov khoom nyoos los ntawm kab distillation (8 theoretical tais).
Cov tom kawg yog yaj hauv 95% ethanol, ion pauv kom tshem tawm cov ntsev inorganic, txias rau 10-20 degree, crystallized, sib cais thiab lub tshuab nqus tsev qhuav kom tau txais cov khoom lag luam nrog lub melting point ntau dua 69 degree.
CH3C6H4OH+(CH3)2C=CH2[H2SO4] → BHT
FAQ
Dab tsi yog cov txiaj ntsig ntawm butylated hydroxytoluene?
BHT yog siv los ua antioxidant lossis stabilizer. Nws ua lub luag haujlwm tseem ceeb hauv kev tswj xyuas qhov zoo thiab kev ua tau zoo ntawm cov khoom siv raw thiab cov khoom los ntawm kev tiv thaiv lawv cov kev puas tsuaj vim cov tshuaj tiv thaiv nrog oxygen hauv huab cua (oxidation).
Butylated hydroxytoluene ua dab tsi rau ntawm daim tawv nqaij?
BHT feem ntau suav hais tias muaj kev nyab xeeb rau kev siv ntawm koj cov tawv nqaij hauv qhov me me. Yuav tsum zam BHT? Cov teebmeem ntawm BHT hauv tshuaj pleev ib ce yog dab tsi? Muaj ntau txoj kev tshawb fawb txog kev nyab xeeb ntawm BHT feem ntau, qhia tias kev siv BHT tsis ua rau muaj kev cuam tshuam loj heev, rhiab heev, lossis photosensitization.
Puas yog butylated HydroxyToluene zoo rau cov plaub hau?
Butylated HydroxyToluene (BHT) yog ib qho antioxidant uas pab kom ruaj khov cov roj thiab lwm yam khoom xyaw hauv cov tshuaj pleev ib ce, tiv thaiv oxidation. Nws yog feem ntau siv hauv kev tu tawv nqaij, pleev, thiab cov khoom tu plaub hau kom khaws lawv cov txee lub neej thiab tswj lawv cov txiaj ntsig.
Puas yog butylated HydroxyToluene muaj kev nyab xeeb?
BHT feem ntau lees paub tias muaj kev nyab xeeb (GRAS) los ntawm FDA thaum siv los ua khoom noj. Nws tuaj yeem muab ntxiv rau ntau yam khoom, suav nrog cov khoom noj thiab tshuaj pleev ib ce, tab sis nws tsis tuaj yeem ua lag luam los kho lossis kho tus kab mob.
Cim npe nrov: butylated hydroxytoluene (bht) cas 128-37-0, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, yuav, nqe, tej, kev muag khoom