Nqa yuav luag txhua cov tshuaj zawv plaub hau, ntxuav lub cev, lossis xab npum ua kua thiab tshuaj xyuas cov npe khoom. Qhov chaw nyob ze nruab nrab koj yuav pomCocamide MEA- ib qho me me, ib txwm- muab cov surfactant uas tau ua haujlwm ntawm kev lag luam tu tus kheej rau ntau xyoo lawm. Txawm hais tias nws qhov kev nthuav dav, chemistry qab nws thiab lub luag haujlwm ntawm nws cov khoom siv tseem ceeb,Monoethanolamine (MEA), feem ntau nkag siab yuam kev los ntawm cov neeg tsim khoom, pab pawg muag khoom, thiab cov neeg tsim khoom siv uas siv nws txhua hnub.
Phau ntawv qhia no suav nrog cocamide MEA yog dab tsi, nws yog synthesized los ntawm cov txiv maj phaub fatty acids thiab MEA, nws ua li cas hauv cov mis, nws piv rau cocamide DEA li cas, thiab cov neeg yuav khoom ntawm MEA yuav tsum paub dab tsi thaum muab cov khoom siv raw rau cocamide MEA ntau lawm. Rau MEA physicochemical specifications thiab nqi, saib pebMonoethanolamine khoom nplooj.
🌿 Cocamide MEA yog dab tsi?
Cocamide MEA yog ib qho fatty acid monoethanolamide uas tsim los ntawm condensing cov fatty acids sib xyaw los ntawm cov txiv maj phaub roj nrog monoethanolamine. Nws yog nyob rau hauv chav kawm alkanolamide ntawm tsis yog -ionic surfactants thiab tau teev nyob rau hauv lub npe INCICocamide MEA(CAS 68140-00-1) .
"coco" prefix yog hais txog txiv maj phaub- muab tau cov roj fatty acids - sib tov los ntawm lauric acid (C12, ~ 48%), myristic acid (C14, ~ 18%), caprylic acid (C8, ~ 8%), thiab capric acid (C10, ~ 7%), nrog me me ntawm C18 saw. Vim hais tias txiv maj phaub roj muaj pes tsawg leeg sib txawv los ntawm keeb kwm, qhov tseeb fatty acid profile - thiab yog li ntawd cov yam ntxwv ntawm kev ua tiav ntawm cocamide MEA - tuaj yeem sib txawv ntawm cov neeg muag khoom thiab txawm tias ntawm cov khoom tsim los ntawm tib tus neeg muag khoom.
| INCI npe | Cocamide MEA |
| CAS Nr | 68140-00-1 |
| Chav Kawm Surfactant | Tsis yog -ionic, fatty acid monoethanolamide |
| Cov khoom siv raw | Txiv maj phaub fatty acids (los yog txiv maj phaub roj) + MEA |
| Qhov tshwm sim | Tawm -dawb mus rau daj ntseg daj waxy khoom los yog flakes |
| HLB Value | ~ 7-8 (mob lipophilic) |
| Hom Kev Siv Qib | 1-3% nyob rau hauv tiav formulation |
| Solubility | Dispersible nyob rau hauv dej; soluble hauv ethanol, surfactant systems |
Tsis zoo li cocamide DEA - uas yog tsim los ntawm diethanolamine thiab tau ua raws li kev tswj hwm kev txwv ntau ntxiv - cocamide MEA tsis nqa tib yam kev txhawj xeeb carcinogenicity. Qhov kev tswj hwm qhov sib txawv no tau ua rau cocamide MEA qhov kev xaiv zoo tshaj plaws hauv kev lag luam uas cocamide DEA raug txwv lossis qhov twg cov hom lag luam nrhiav kev nyab xeeb kev nyab xeeb.
🔬 Yuav Ua Li Cas Cocamide MEA: Cov Tshuaj Synthesis Chemistry
Kev tsim cov cocamide MEA yog cov tshuaj tiv thaiv amidation - yog ib qho tseem ceeb tshaj plaws ntawm cov tshuaj tiv thaiv condensation hauv oleochemistry. Cov tshuaj tiv thaiv ntawm fatty acid (los yog fatty acid methyl ester) thiab monoethanolamine ua raws li hauv qab no:
R–COOH + H₂N–CH₂CH₂OH → R–CO–NH–CH₂CH₂OH + H₂O
Fatty acid + Monoethanolamine (MEA) → Fatty acid monoethanolamide + Dej
qhov twg R sawv cev rau cov sib xyaw carbon chains (C8–C18) muab los ntawm cov txiv maj phaub roj. Cov tshuaj tiv thaiv yog feem ntau nqa tawm ntawm140-180 degreenyob rau hauv atmospheric siab los yog lub tshuab nqus tsev me me kom tshem tawm cov dej ntawm condensation thiab tsav cov tshuaj tiv thaiv kom tiav.
⚙️ Ob Txoj Kev Ntau Lawm
Txiv maj phaub fatty acids teb ncaj qha nrog MEA ntawm 1: 1 molar ratio (fatty acid: MEA). Catalyst: feem ntau tsis muaj catalyst, los yog me ntsis acid catalyst xws li p-toluenesulfonic acid ntawm 0.1–0.5%. Kub: 150-170 ° C. Lub sij hawm teb: 3-6 teev. Dej yog tshem tawm los ntawm distillation los yog nitrogen cheb.
Txiv maj phaub roj methyl esters (FAME) hnov mob nrog MEA ntawm aminolysis ntawm 80–110 degree, tso methanol ua ib co- khoom. Catalyst: sodium methoxide (0.1-0.3%). Cov tshuaj methanol rov qab los ntawm distillation rau rov siv dua lossis muag.
⚖️ MEA Stoichiometry thiab 1: 1 vs 2: 1 Nqe Lus Nug
Cov molar ratio ntawm fatty acid rau MEA cuam tshuam rau cov muaj pes tsawg leeg thiab kev ua tau zoo ntawm cov khoom tiav:
| Fatty Acid: MEA Ratio | Yam khoom | Yam ntxwv |
|---|---|---|
| 1: 1 (xws li) | Pure monoethanolamide (1: 1 khoom) | High amide content (>90%); khoom ntawm chav tsev kub; tsawg dawb amine; nyiam rau tshuaj pleev ib ce |
| 1: 1.5-2 (MEA ntau dhau) | Superamide los yog 2: 1 khoom | Tsawg cov ntsiab lus amide; siab dua MEA dawb; dej ntau dua -soluble; zoo dua qis-kub tuav; siv nyob rau hauv industrial daim ntaub ntawv |
| 2: 1 (fatty acid ntau dhau) | Di-amide / khoom sib xyaw | Muaj ester-amide thiab diethanolamide hom; tsis tshua siv hauv kev saib xyuas tus kheej |
Rau daim ntawv thov kev saib xyuas tus kheej, 1: 1 equimolar khoom nrog cov ntsiab lus siab monoethanolamide yog qhov xav tau. Cov khoom siv superamide (2: 1, MEA- ntau dhau) qee zaum tau teev tseg rau cov ntawv thov ua npuas dej uas cov dej solubility yog qhov tseem ceeb tshaj qhov purity.
Thaum MEA muaj ntau qhov tseem ceeb ntawm DEA ua ib qho impurity (raws li muaj nyob rau hauv qis dua -qib industrial MEA), ib feem ntawm DEA reacts nrog fatty acid los ua cocamide DEA ua ib co- khoom nyob rau hauv lub amidation reactor. Yog tias cov khoom ua tiav cocamide MEA yog npaj rau kev lag luam uas cocamide DEA raug txwv (EU, California), siv MEA nrog DEA cov ntsiab lus<0.5% is essential. Always request a Certificate of Analysis confirming DEA content when sourcing MEA for amide production.
🧴 Cocamide MEA Ua li cas hauv kev tsim
Cocamide MEA yog multifunctional - nws ua tau ntau lub luag hauj lwm ib txhij nyob rau hauv ib tug surfactant system, uas yog vim li cas nws thiaj li dav siv raws li ib tug kuj tsawg - nqi co- surfactant additive.
Kev lag luam tseem ceeb tshaj plaws. Thaum ntxiv ntawm 1-3% rau anionic surfactant systems (SLS, SLES, SCS), cocamide MEA nce ua npuas ncauj ntim thiab txhim kho npuas stability thiab creaminess. Cov txheej txheem cuam tshuam nrog cov amide qhov ntxig rau hauv cov micelles surfactant, ua rau lawv cov khoom ntim tau zoo thiab ua kom cov npuas lamellae ruaj khov.
Cocamide MEA pab txhawb rau viscosity ntawm surfactant systems los ntawm nws cov kev cuam tshuam nrog cov qauv surfactant micelle. Nws tsis tshua muaj txiaj ntsig zoo li cov viscosity builder dua li cocamide DEA ntawm qhov sib npaug, tab sis nws cov npuas dej - txhawb kev koom tes rau tib lub cev ua rau kev lag luam tawm - tawm ntawm kev siv ntau yam.
Cov fatty acid feem ntawm cov molecule imparts me ntsis txias thiab emollient zog los yaug-tawm tshuab. Hauv cov tshuaj zawv plaub hau, qhov no pab txhawb rau kev tshaj tawm - ntxuav softness thiab tswj tau, tshwj xeeb tshaj yog nyob rau hauv cov qauv rau cov plaub hau qhuav los yog tshuaj kho mob. Cov nyhuv yog hloov maj mam piv rau cov neeg ua haujlwm txias tab sis ntxiv qhov muaj txiaj ntsig zoo.
Cocamide MEA txhim kho kev ruaj ntseg ntawm anionic surfactant systems tiv thaiv electrolyte thiab pH variation. Nws nthuav dav cov pH ua tau zoo ntawm SLES-raws li formulations thiab txo rhiab heev rau cov dej tawv ions, uas yog tshwj xeeb tshaj yog muaj nqis nyob rau hauv yaug-tawm cov khoom siv nyob rau hauv siab - hardness dej cheeb tsam.
Nrog HLB ntawm kwv yees li 7–8, cocamide MEA tuaj yeem pab hauv emulsifying me me ntawm oily Cheebtsam (fragrance, conditioning oils, UV filters) nyob rau hauv yaug- tawm formulations. Nws tsis yog thawj emulsifier rau kev tawm mus- ntawm O / W cream, tab sis muaj txiaj ntsig zoo rau cov tshuaj tsw qab solubilisation hauv siab - surfactant systems.
🛒 Qhov twg siv Cocamide MEA
Cocamide MEA tshwm nyob thoob plaws ntau hom kev yaug - tawm thiab qee qhov tawm - ntawm pawg saib xyuas tus kheej. Ib txwm ua tiav - cov khoom lag luam concentration tau sau tseg rau txhua qhov:
- 🧴 Shampoos- 1-3%; thawj daim ntawv thov; ua npuas ncauj boosting hauv SLS / SLES lub hauv paus
- 🫧 ntxuav lub cev thiab da dej gels- 1-2%; ua npuas ncauj kev txhim kho thiab daim tawv nqaij -xav kev txhim kho
- 🙌 Liquid hand soaps- 1-2%; ua npuas ncauj ntim thiab stability, me me ntawm daim tawv nqaij txias
- 🧼 Bar xab npum adjunct- mus txog 3%; txhim kho lather hauv syndet tuav thiab combo tuav
- 🫧 Bubble da dej thiab da dej ua npuas ncauj- 2-4%; sustained ua npuas ncauj ntawm tsawg surfactant concentration
- 🧽 Cov dej ntxuav tais diav- 1-2%; ua npuas ncauj stabilization thiab roj- txiav kev txhim kho
- 🧹 Industrial cleaners thiab degreasers- 1-5%; ua npuas ncauj tswj thiab ntub dej hauv alkaline tu tshuab
Hauv kev yaug-tawm cov qauv tsim, cov tawv nqaij me me ntawm cocamide MEA kuj ua pov thawj tias nws siv hauv cov khoom siv rau cov tawv nqaij rhiab heev, kev tu menyuam yaus, thiab cov kab mob dermatological cleansing systems, muab tag nrho cov qauv pH thiab surfactant system yog tsim los rau me me.
⚖️ Cocamide MEA vs Cocamide DEA: Qhov txawv ntawm qhov tseem ceeb
Cocamide MEA thiab cocamide DEA feem ntau sib tham sib hloov, tab sis lawv txawv ntawm chemistry, kev ua tau zoo, thiab kev tswj hwm txoj hauv kev uas muaj teeb meem rau cov neeg tsim khoom txiav txim siab thiab hloov pauv.
| Khoom | Cocamide MEA | Cocamide DEA |
|---|---|---|
| Hom Amine | Thawj amine → monoamide | Secondary amine → diamide |
| Lub cev (ambient) | Waxy khoom / flakes | Amber viscous kua |
| Dej solubility | Dispersible (yuav tsum tau ua kom sov los yog surfactant system) | Ntau yooj yim soluble ntawm ambient |
| Ua npuas ncauj boosting | Zoo - tshwj xeeb tshaj yog ua npuas ncauj ntim | Zoo heev - ua npuas ncauj creaminess zoo heev |
| Lub tsev viscosity | Nruab nrab | Muaj zog - zoo dua thickener |
| N-kev pheej hmoo nitrosamine | Tsawg (primary amine) | Siab (secondary amine → NDELA) |
| EU Kev Cai Cosmetics | Tso cai nrog cov xwm txheej txheem | Txwv: max 5% yaug-tawm; txwv tsis pub tawm hauv - rau |
| California Prop 65 | Tsis teev | Cov npe hu ua carcinogen |
| Tus nqi (tus txheeb ze) | Siab dua me ntsis rau ib kg (tsawg dua - tawm los MEA cov tshuaj tiv thaiv) | Tsawg dua ib kg |
Kev tswj kom zoo dua ntawm cocamide MEA tshaj cocamide DEA tau tsav cov kev hloov pauv tseem ceeb hauv kaum xyoo dhau los, tshwj xeeb tshaj yog cov European thiab North American hom uas muag rau ntau lub khw muag khoom ib txhij. Rau lub hom phiaj nrhiav ib qho kev tsim thoob ntiaj teb yam tsis muaj kev ua lag luam - cov teeb meem kev cai tshwj xeeb, cocamide MEA yog qhov kev xaiv ncaj nraim.
Qhov ncaj qha 1: 1 qhov hnyav hloov pauv ntawm cocamide DEA nrog cocamide MEA feem ntau yuav txo qis viscosity thiab hloov me ntsis ua npuas ncauj zoo nkauj hauv SLES- cov tshuaj zawv plaub hau. Txhawm rau kom them nyiaj: nce cocamide MEA rau 120-130% ntawm thawj qib DEA, thiab txiav txim siab kho NaCl concentration (feem ntau 1-2% hauv cov khoom tiav) kom rov qab lub hom phiaj viscosity. Cov ntaub ntawv ua npuas ncauj yuav txawv me ntsis - MEA amides nyiam tsim sai dua -nce tab sis me ntsis creamy npuas piv rau DEA amides ntawm tib qib siv.
🧪 Cov Lus Qhia Txog Kev Ua Haujlwm nrog Cocamide MEA
Cocamide MEA yog cov khoom siv waxy nrog lub melting point nyob rau hauv thaj tsam ntawm 70-85℃(nyob ntawm seb fatty acid profile). Ntxiv nws mus rau lub rhaub dej kub los yog surfactant concentrate ntawm 70-75℃thiab sib tov kom txog thaum tag nrho yaj ua ntej txias. Ntxiv cov khoom cocamide MEA rau hauv qhov txias lossis chav tsev- qhov kub thiab txias ua rau cov khoom tawg yooj yim thiab tuaj yeem ua rau muaj teeb meem kev sib haum xeeb.
Cocamide MEA yog qhov ruaj khov nyob thoob plaws pH ntau yam tab sis yog qhov ruaj khov thiab zoo tshaj plaws ua npuas dej ntawm pH 5.5 thiab 7.0. Hauv qab pH 4.5, ib nrab hydrolysis ntawm amide daim ntawv cog lus tuaj yeem tshwm sim ntawm kev cia ntev, maj mam txo ua npuas dej. Tshaj pH 8, qhov kev pheej hmoo ntawm kev tso tawm dawb MEA nce. Rau cov tshuaj zawv plaub hau thiab ntxuav lub cev, qhov kawg formulation pH ntawm 5.5-6.5 yog pom zoo rau ob qho tib si daim tawv nqaij compatibility thiab cocamide MEA stability.
Rau SLES- tshuaj zawv plaub hau, ib qho kev txhim khu kev qha ntxiv yog: (1) dej kub rau 70-75℃; (2) ntxiv cocamide MEA thiab do kom txog thaum yaj; (3) ntxiv SLES (sodium laureth sulfate) rau cov tshuaj kub amide; (4) sib tov kom huv si; (5) txias rau<40 °C; (6) add fragrance, preservative, citric acid (pH adjustment), and other cold-add ingredients. This sequence ensures the amide is fully incorporated into the surfactant micelle structure before the system is cooled to its final viscosity.
Txawm hais tias cocamide MEA yog muab los ntawm tus thawj amine (MEA) thiab muaj qhov pheej hmoo ntawm nitrosamine qis dua li cocamide DEA, txhua yam uas tsis muaj MEA nyob hauv cov khoom tuaj yeem cuam tshuam nrog cov tshuaj nitrosating. Raws li kev ceev faj ua raws li EU Kev Tswj Xyuas Tshuaj pleev ib ce zoo, zam kev sib xyaw cocamide MEA nrog bronopol, 5-bromo-5-nitro-1,3-dioxane, lossis lwm yam tshuaj tua kab mob uas tso tawm nitrite. Phenoxyethanol, ethylhexylglycerin, sodium benzoate, thiab potassium sorbate yog txhua yam kev xaiv.
Cocamide MEA yuav khov rau hauv cov thawv ntim khoom ntawm qhov kub thiab txias hauv qab li ntawm 20-25 degree. Qhov no tsis yog qhov teeb meem zoo - cov khoom siv rov ua dua -usable ib zaug rov- melted - tab sis nws tsim teeb meem. Khaws cov nruas nyob rau hauv ib lub rhuab warehouses los yog siv rhuab cia txee nyob rau hauv cov huab cua txias. Tsis txhob rov ua dua- ua kom muaj zog, uas tuaj yeem ua rau muaj xim me me hauv cov khoom dhau sijhawm.
📦 Sourcing MEA rau Cocamide MEA Production
Rau cov tuam txhab tsim cocamide MEA, qhov zoo ntawm MEA raw khoom ncaj qha txiav txim siab qhov zoo - thiab kev tswj hwm kev ua raws cai - ntawm cov amide tiav. Cov kev qhia tshwj xeeb hauv qab no yog qhov tseem ceeb thaum muab MEA rau kev tsim khoom amide.
| Parameter | Pom zoo Specification | Vim Li Cas Nws Tseem Ceeb |
|---|---|---|
| MEA Purity | Ntau dua lossis sib npaug li 99.0% | Siab purity → siab dua amide tawm los thiab tsawg xim hauv cov khoom |
| DEA Cov ntsiab lus | Tsawg dua los yog sib npaug li 0.5% | txwv cocamide DEA co- tsim; tseem ceeb rau EU/CA kev ua lag luam ua raws |
| Cov ntsiab lus dej | Tsawg dua los yog sib npaug li 0.5% | Cov dej ntau dhau dilutes cov tshuaj tiv thaiv amidation thiab cuam tshuam rau kev suav cov txiaj ntsig |
| Xim (APHA) | Tsawg dua los yog sib npaug li 20 | Darker MEA tsim cov khoom tsaus dua -xim amide khoom |
| Cov ntsiab lus hlau | Tsawg dua lossis sib npaug li 1 ppm | Hlau catalyses xim kev loj hlob thaum lub sij hawm siab -kub amidation |
| Nitrosamine cov ntsiab lus (zoo) | Tsis pom (<10 ppb) | EU cosmetic ingredient supply chain yuav tsum tau |
❓ Cov lus nug nquag
📝 Cov ntsiab lus
Cocamide MEA yog multifunctional non{0}}ionic surfactant uas ua ke ua npuas ncauj boosting, me viscosity lub tsev, thiab txias nyob rau hauv ib tug tib yam khoom - uas ua los ntawm cov condensation ntawm txiv maj phaub fatty acids nrog monoethanolamine. Nws txoj kev tswj hwm kom zoo dua cocamide DEA, suav nrog kev tsis tuaj ntawm California Prop 65 daim ntawv teev npe thiab tsawg dua EU txwv, tau ua rau nws nyiam alkanolamide rau kev tsim kho kom zoo nkauj thoob ntiaj teb xyoo kaum xyoo dhau los.
Rau cov tuam txhab tsim cov cocamide MEA, qhov tseem ceeb ntawm cov dej ntws sib txawv yog MEA zoo - tshwj xeeb DEA cov ntsiab lus, xim, thiab qib hlau - uas cuam tshuam ncaj qha rau ob qho tag nrho cov khoom tiav thiab kev lag luam tsim khoom. High-purity MEA 99% nrog cov ntawv pov thawj qis DEA cov ntsiab lus yog qhov tsim nyog rau kev saib xyuas tus kheej amide ntau lawm.
Sinolook Chemical khoom siv monoethanolamine (MEA 99%) nrog cov ntsiab lus qis DEA tau lees paub los ntawm CoA, tsim nyog rau kev saib xyuas tus kheej amide ntau lawm. Muaj nyob rau hauv 25 kg, 200 kg, thiab 1,000 kg IBC ntim nrog tag nrho SDS thiab REACH cov ntaub ntawv.
