Lubricant Additives - Amine Antioxidants Series:Alkylated Diphenylamine (CAS 68411-46-1) qhib lubAmine Antioxidants subcategory- chav kawm thib ob ntawm thawj cov tshuaj tiv thaiv antioxidants hauv Sinolook additive ntau yam, ntxiv rau Phenolic AO series (BHT · DTBP · High-MW Phenolic Esters). Aromatic amine antioxidants txawv ntawm phenolics hauv ob qhov tseem ceeb:(1) siab -kub superiority- amine AOs khaws cov radical-scavening efficiency saum 150℃qhov twg phenolics tau thermally noj sai dua;(2) ib nrab catalytic regeneration- diarylamine nitrogen radical (Ar₂N•) nruab nrab tuaj yeem rov ua dua -react nrog hydroperoxides kom rov tsim cov tshuaj tiv thaiv kab mob antioxidant, ua kom muaj txiaj ntsig zoo dua molar noj efficiency ib molecule vs phenolic AOs. Qhov no yog vim li cas kev lag luam ntev -drain thiab aviation lubricant formulations ua ke ob hom: phenolic ester (nrog 60-150 degree) + amine AO (nrog 120-200℃+) kom tiav oxidation kub kev pab them nqi. SAPS{11}}dawb (C/H/N - xoom tshauv, S, P, hlau). Sinolook Amine AO series:Alkylated Diphenylamine CAS 68411-46-1 (qhov no)· lwm amine AO qib.
✅ SAPS-Dawb (Tshauv 0%, Zero S/P) · Amine AO · Siab-Tub Ntiag Tug AO (120–200℃+) · Catalytic Radical Scavenging · Diarylamine · Amber Liquid · Purity Ntau dua los yog sib npaug rau 95% · FP20 · Tur℃ntau dua PAO/Ester · Aviation
Alkylated Diphenylamine
ADPA / Alkyl Diphenylamine / Aromatic Amine Antioxidant / Alkyl diphenylamine / CAS 68411-46-1 / Liquid / Purity Ntau dua lossis sib npaug li 95% / Amine AO
| CAS Nr | 68411-46-1 |
| Hom tshuaj | Aromatic amine antioxidant - dialkyl diphenylamine (chav kawm diarylamine); theem nrab amine (N-H); N yog ib qho heteroatom (tsis muaj S, P, hlau) |
| Qauv | Ob lub nplhaib phenyl txuas los ntawm -NH- (diphenylamine core); ib lossis ob lub nplhaib nqa alkyl hloov pauv (C4–C12 alkyl pawg) ntawm para/ortho txoj haujlwm - raws li qhia los ntawm R–Ph–NH–Ph hauv cov qauv skeletal. Cov pab pawg alkyl nce MW, txo cov volatility, thiab txhim kho roj solubility vs unsubstituted diphenylamine (DPA, CAS 122-39-4). CAS 68411-46-1 yog kev lag luam sib xyaw ntawm mono- thiab dialkylated diphenylamine homologues nrog ntau yam alkyl saw ntev. |
| Synonyms | ADPA · Alkyl DPA · Alkylated DPA · Dialkyl diphenylamine antioxidant · Alkyl diphenylamine · Aromatic amine antioxidant · Stabilizer DPA |
| ★ SAPS xwm txheej | ✅ Tsis muaj tshauv / sulfur / phosphorus / hlau
ADPA tsuas muaj C, H, N -nitrogen tsis yog SAPS cov ntsiab lus(SAPS=Sulfated tshauv, Phosphorus, Sulphur). Zero pab rau tag nrho peb SAPS tsis. Ua tiav nrog ACEA C1-C5, API SP, CK-4 / FA-4 SAPS txwv ntawm txhua tus nqi kho mob. Cov ntsiab lus N tsis sau npe hauv ASTM D482 (ash), D4951 (P), lossis D1552/D4294 (S) kev ntsuas. |
| Qhov tshwm sim | Amber mus rau lub teeb xim av kua Cov xim sib sib zog nqus amber yog yam ntxwv - tsaus dua li phenolic AOs; xim tsis qhia impurity lossis degradation ntawm tus me nyuam; amine chromophore (ntxiv conjugation thoob plaws Ph-N-Ph) inherently absorbs pom lub teeb nyob rau hauv lub xiav cheeb tsam, ua lub amber tsos. Xim darkens ntxiv nyob rau hauv kev pab raws li amine yog noj - siv roj colourimetry yuav ua tau ib tug ntxhib qualitative AO depletion qhia. |
| Purity / Qib | Standard Ntau dua lossis sib npaug rau 95.0% (GC) Ntau dua lossis sib npaug li 95% tag nrho cov ntsiab lus amine (GC cheeb tsam); Cov khoom me me yog lwm cov alkylated DPA homologues, tag nrho cov antioxidant- nquag; kev cai purity tiers ntawm kev thov. |
Alkylated Diphenylamine - Siab-Tsuas Mechanism & Vim Li Cas Amine AOs Ua Haujlwm Phenolics siab dua 150 degree
Tom ntej: Alkylated Diphenylamine CAS 68411-46-1belongs rau lubdiarylamine (secondary aromatic amine) chav kawm ntawm antioxidants- qhov siab tshaj -kev ua haujlwm tseem ceeb antioxidants rau daim ntawv thov roj nplua nyeem uas muaj kev ua haujlwm tsis tu ncua saum 150℃. Lub molecule muaj ob lub phenyl rings txuas los ntawm ib tug thib ob amine nitrogen (–NH–), nrog alkyl substituents ntawm ib los yog ob lub nplhaib. Cov pab pawg alkyl ua haujlwm rau ob lub hom phiaj: lawv tiv thaiv niam txiv diphenylamine los ntawm crystallising (DPA, CAS 122-39-4 yog cov khoom melting ntawm 53 degree), thiab lawv ua kom cov electron ntom ntom ntawm cov nplhaib uas muaj ntxhiab - txhim kho N-H daim ntawv cog lus hydrogen-dawb cov khoom lag luam muaj txiaj ntsig zoo dua li cov tshuaj tiv thaiv kab mob. DPA. CAS 68411-46-1 suav nrog kev lag luam sib xyaw ntawm mono- thiab dialkylated diphenylamine homologues nrog C4-C12 alkyl saw lengths, tsim cov khoom ua kua ntawm qhov kub thiab txias.
Lub tshuab antioxidant ntawm alkylated DPA yog qhov nyuaj thiab ua haujlwm zoo dua li yooj yim phenolic H- pub dawb. Nws ua haujlwm li aib nrab regenerating radical scavenger- los ntawm ntau-kauj ruam nitrogen- nruab nrab txoj hauv kev uas siv tau ntau tshaj ib qho radical ib molecule ua ntej cov tshuaj tiv thaiv antioxidant yog siv tsis tau. Tus cwj pwm "catalytic" no yog thawj qhov laj thawj vim li cas amine AOs nyiam tshaj phenolic AOs nyob rau hauv qhov xav tau tshaj plaws ntev -kua thiab siab - daim ntawv thov lubricant kub.
Ar₂N–H + ROO• → Ar₂N• + ROOH
N-H hydrogen yog pub dawb rau peroxyl radical (ROO•), tsim diarylaminyl radical (Ar₂N•) thiab hydroperoxide (ROOH). Cov diarylaminyl radical yog qhov ruaj khov heev - cov hluav taws xob tsis sib xws yog delocalised hla ob lub phenyl rings (cross -conjugation los ntawm N), ua rau nws muaj txiaj ntsig zoo ib qho "persistent radical" uas tsis sai sai pib cov chains tshiab. Nyob rau theem no, ib qho ROO• tau noj - tib yam li phenolic AO Kauj Ruam 1.
Ar₂N• + ROO• → Ar₂N–OOR (aminyl-peroxyl adduct)
Cov diarylaminyl radical reacts nrog ib tug thib ob ROO• los ua ib tug nitroxide- hom intermediate (Ar₂N-OOR). Cov kauj ruam no tshem tawm athib obperoxyl radical - ua tau zoo dua ob npaug ntawm cov radical-scavenging yield vs. phenolic AOs (uas noj tsuas yog 1 ROO• ib molecule ntawm theem no). Cov nitroxide intermediate tseem yog reactive thiab txuas ntxiv siv radicals.
Ar₂N–OOR + ROOH → Ar₂N–OH + khoom
Cov nitroxide nruab nrab tuaj yeem hnov mob nrog hydroperoxides (ROOH -) tib hom uas ZDDP decomposes) los tsim ib hydroxylamine (Ar₂N-OH). Cov hydroxylamine Ar₂N-OH tuaj yeem pub nws O-H hydrogen rau ROO• (Ar₂N–OH + ROO• → Ar₂N–O• + ROOH), txuas ntxiv qhov radical -scavening voj voog. Qhov kev rov tsim dua ib nrab no yog vim li cas amine AOs tshwm sim ua kom qeeb qeeb hauv kev pabcuam dua li phenolic AOs ntawm qhov sib npaug pib kho tus nqi.
Cov khoom kawg kawg: quinone-imine / diphenylamine- muab los ntawm chromophores
Tom qab ntau yam radical-scavenging cycles, cov amine yog irreversibly hloov mus rau ruaj khov quinone- mine cov khoom (zoo heev conjugated, tob amber / liab-xim xim av). Cov khoom no yog lub hauv paus ntawm cov yam ntxwv xim tsaus nti ntawm cov roj siv roj uas tau siv nws cov amine AO cia - saib xyuas siv roj xim los ntawm UV-Vis spectrophotometric lossis RULER voltammetry tuaj yeem taug qab ADPA depletion hauv kev pabcuam. Cov khoom kawg tsis yog-corrosive, tsis yog-sludge- ua cov chromophores ruaj khov.
Qhov zoo tshaj plaws: ~ 60-150 degree
O-H BDE ~ 78 kcal / mol; ceev H- pub dawb rau ROO•; kev tiv thaiv zoo ntawm qhov kub thiab txias. Tshaj li ~ 150℃, phenoxy radical nce zuj zus ntxiv -scission (C-C daim ntawv cog lus tawg) → AO noj yam tsis muaj kev txiav tawm radical; depletion tus nqi nrawm nrawm dua 160 degree.
★ Qhov zoo tshaj plaws: ~ 120-200℃+
N–H BDE ~ 73 kcal/mol (qis dua O–H ntawm phenols → txawm ntau reactive rau ROO•); aminyl radical (Ar₂N•) ruaj khov dua ntawm qhov kub thiab txias - delocalisation hla ob lub nplhaib aromatic tiv thaiv -scission; ib nrab regenerating mechanism ncua kev ua hauj lwm zoo lub neej. Tseem ua haujlwm ntawm qhov kub thiab txias qhov twg phenolics ua tsis tiav.
Tag nrho cov kev pab cuam: 60-200℃+
Qhov zoo tshaj plaws ntev -drain lubricant AO lub tswv yim:Phenolic ester (L01/L57) 0.3–0.5 wt% + ADPA 0.2–0.4 wt% + ZDDP 0.7–1.2 wt%. Phenolic npog nruab nrab-temp; ADPA npog siab -temp; ZDDP rhuav tshem hydroperoxides ntawm txhua qhov kub. Ua ke lawv muab kev tiv thaiv AO ua tiav thoob plaws qhov kev pabcuam roj nplua nyeem tag nrho nrog rau lub sijhawm tso dej ntau tshaj plaws.
| Qhov tshwm sim | Amber mus rau lub teeb xim av kua |
| Purity (GC) | Ntau dua lossis sib npaug li 95.0% |
| ★ Flash Point | Ntau dua lossis sib npaug rau 200℃(ASTM D93) |
| Lub ntsiab lus ✅ | 0% - ashless tiag tiag |
| KV @40 degree | High viscosity (qib nyob ntawm; ~ 500-3000 cSt raug) |
| Ncuav Point | <–10°C (liquid at ambient) |
| Txee lub neej | 24 lub hlis ( kaw, txias / qhuav cia) |
| Kev sib haum xeeb | Tag nrho cov roj hauv paus (Group I-V); tau tshaj phenolic AO, ZDDP, dispersants, detergents |
Technical Specification
Tag nrho cov ntsiab lus active diarylamine; sib tov ntawm mono-/dialkyl DPA homologues tag nrho AO- nquag; kev cai Ntau dua lossis sib npaug li 98% ntawm kev thov rau cov qauv tsim nyog
High flash point - non-flammable classification; tsis muaj ADR Class 3 txwv kev thauj mus los; ruaj ntseg cia nyob rau hauv txheem rhuab warehouses; muaj kev nyab xeeb dua li 2,6-DTBP (FP ~ 114 degree)
✅ Tsis muaj tshauv tiag tiag - C/H/N formula; xoom hlau, S, P; N tsis yog SAPS keeb; ua kom tiav SAPS kev ywj pheej ntawm txhua tus nqi kho mob
Amine tus nqi (mgKOH / g sib npaug N) yog qhov tseem ceeb AO peev xwm qhia rau amine antioxidants - siab dua amine tus nqi=ntau dua N–H pawg ib gram=siab dua AO reserve. COA qhia txog tus nqi amine ib qho ntau; cov qib kev cai muaj nrog lub hom phiaj amine tus nqi ntau.
| Parameter | Specification | Txoj Kev Xeem | Technical Note |
|---|---|---|---|
| Qhov tshwm sim | Amber mus rau lub teeb xim av kua | Pom kev | Cov xim sib sib zog nqus amber yog muaj nyob rau hauv diarylamine chromophore (Ph–N–Ph π-conjugation absorbs 400–450 nm xiav lub teeb → amber tsos); xim tsaus nti vs phenolics yog qhov qub thiab xav tau; tsaus xim av/dub heev tej zaum yuav qhia ntau tshaj -oxidation nyob rau hauv cia - xyuas nrog amine nqi kuaj |
| Purity (GC) ★ | Ntau dua lossis sib npaug li 95.0% | GC cheeb tsam% | Tag nrho cov ntsiab lus active diarylamine; CAS 68411-46-1 yog kev lag luam sib xyaw - cov khoom me me yog lwm cov saw-ntev alkyl DPA homologues, tag nrho cov tshuaj tiv thaiv antioxidant; Ntau dua lossis sib npaug li 98% qib kev cai muaj nyob rau ntawm kev thov rau daim ntawv thov hwm |
| ★ Amine tus nqi | Qib nyob ntawm - qhia rau ib qho | ASTM D2896 lossis D974 | Kev ua haujlwm tseem ceeb rau amine AOs - ncaj qha ntsuas qhov nquag N-H concentration (mgKOH / g sib npaug). Ntau dua amine tus nqi=ntau dua AO peev ib gram. Target amine tus nqi muaj nyob rau ntawm kev thov; qhia txog daim ntawv thov thiab lub caij ntws tawm rau kev pom zoo rau qib |
| Lub ntsiab lus ✅ | 0% (tsis muaj kuab lom) | ASTM D 482 2 | ✅Zoo tiag tiag. C/H/N nkaus xwb - nitrogen burns huv si rau N₂ + NO_x nyob rau hauv combustion (tsis muaj hlau residue). SAPS- dawb. ACEA C1-C5 ua raws li txhua tus nqi kho mob. |
| ★ Flash Point | Ntau tshaj lossis sib npaug li 200 degree | ASTM D93 (PM) Kev Ntsuas | ★ High FP kom zoo dua: tsis muaj ADR Class 3 flammable kua cais; ruaj ntseg txheem warehouse cia; kom meej meej superior rau 2,6-DTBP Mixture (FP ~ 114 degree) thiab muaj txiaj ntsig zoo dua BHT (FP 127 degree) |
| KV @ 40℃(cSt) | ~ 500-3000 (siab viscosity kua) | ASTM D 445 3 | Cov kua viscosity siab - cov twj tso kua mis thiab cov kab hloov pauv yuav tsum muaj qhov loj me rau siab - kua viscosity ntawm kev ua haujlwm kub; warmth mus rau 40-50℃ho txo viscosity kom yooj yim hloov; IBC lub tsho cua sov tau pom zoo rau kev tuav ntau |
| Cov ntsiab lus dej (KFT) | Tsawg dua lossis sib npaug li 0.10% | Karl Fischer | Amine AOs tuaj yeem nqus dej noo ntawm huab cua - ntim ntim tom qab siv; noo noo txhawb oxidative degradation ntawm amine nyob rau hauv cia; N₂ daim pam rau qhib IBCs pom zoo |
| Ntim | 25 kg pail · 200 kg steel nruas · 1000 L IBC · Flexitank bulk | - | Txee lub neej 24 lub hlis kaw; cia txias (15-30 degree), qhuav, deb ntawm lub teeb; zam kev sib cuag nrog cov neeg muaj zog oxidising (nitric acid, peroxides) lossis muaj zog acids / bases hauv qhov chaw cia khoom |
Daim Ntawv Thov & Kev Qhia Txog Kev Siv Tshuaj
1. Ntev-Drain Engine Oils - AO Stack Primary Component
ADPA yog ib feem ntawm cov txheej txheempeb -cov khoom AO pawg(ADPA + phenolic ester L01/L57 + ZDDP) siv nyob rau hauv API SP, ILSAC GF-6, ACEA C3, thiab OEM-spec ntev- cov roj cav (15,000–30,000 km lub sijhawm ntws). ADPA ntawm 0.2–0.4 wt% npog qhov siab - qhov kub ntawm oxidation qhov rais (150–200℃sump ncov kub nyob rau hauv niaj hnub turbocharged xyaw - tshwj xeeb tshaj yog LSPI- tiv thaiv roj qib), thaum L01/L57 ntawm 0.3% wt. Ua ke lawv muab kev tiv thaiv AO txuas ntxiv los ntawm qhov txias - pib ua haujlwm kub nyob rau hauv lub sijhawm ntws tag nrho. RULER voltammetry cov kev tshawb fawb paub meej tias ADPA-muaj AO stacks khaws cia ntau dua AO cia ntawm 15,000 km vs phenolic-tsuas yog pawg - ncaj qha txhawb nqa kev tso dej txuas ntxiv los ntawm OEMs.
2. Turbine & Compressor Roj - Ntev -Lub Neej Muaj Kev Pabcuam
For gas turbine oils (IEC 60296, GEK-32568, Pratt & Whitney PWA 521/522, Rolls-Royce OMAT series), steam turbine oils (ASTM D4293, R&O turbine oil), and industrial compressor oils (ISO VG 32–100, DIN 51506), ADPA at 0.1–0.3 wt% either alone or combined with BHT 0.2 wt% + L01 0.2 wt% provides the highest achievable ASTM D2272 RPVOT oxidation induction times (>3000 feeb rau premium PAO turbine roj sib tov nrog optimized AO pawg). Lub siab flash point (Ntau dua lossis sib npaug li 200 degree) thiab qhov tsis muaj zog ntawm ADPA ua kom nws tseem nyob hauv cov roj theem thoob plaws lub voj voog ua haujlwm nrog cov evaporative tsawg, tsis zoo li qis dua -FP phenolics. Rau aviation turbine lubricants (MIL-PRF-23699, Hom II thiab IIIA), amine AOs yog thawj chav kawm antioxidant pom zoo ntawm qhov kub ua haujlwm siab (175-250℃ncov).
3. Synthetic PAO / Ester / PAG Lubricants
Synthetic base stocks - tshwj xeeb tshaj yog PAO (Group IV), polyol ester (POE, siv nyob rau hauv aviation MIL-PRF-}23699 thiab industrial applications), PAG (dej-glycol hydraulic fluids, refrigeration compressors), thiab diester (ester turbine composite roj) zoo heev hauv paus) {{6} ADPA's alkylated aromatic qauv muab nws zoo heev solubility thiab compatibility nrog tag nrho cov pab pawg neeg I–V puag roj, xws li PAO (tsis yog -polar) thiab ester (polar) chemisries. Hauv POE-raws li lubricants (aviation, tub yees), ADPA ntawm 0.3–0.6 wt% yog tshwj xeeb tshaj yog zoo ntawm kev tiv thaiv ester C=O pawg los ntawm oxidative hydrolysis - hom tsis ua hauj lwm tshwj xeeb rau ester base stocks. Rau PAG compressor lubricants, ADPA ntawm 0.2–0.4 wt% tswj oxidation stability thoob plaws PAG kev khiav hauj lwm kub ntau (–40℃rau +150℃).
4. Greases - Siab -Tsev Kev Pabcuam
Nyob rau hauv siab - kub roj (lithium complex, calcium sulfonate complex, polyurea - tag nrho nrog kev khiav hauj lwm kub txog 180-220℃nyob rau hauv bearing daim ntaub ntawv), ADPA yog cov nyiam amine antioxidant vim nws siab - kub efficiency thiab tsawg volatility. Ntawm cov roj ua haujlwm siab kub, phenolic AOs (BHT, L01) tau noj sai; ADPA's aminyl radical persistence thiab ib feem ntawm cov txheej txheem tsim kho kom muaj kev tiv thaiv AO kom ntev ntev ua ntej yuav tsum tau rov ua dua. Daim ntawv ua kua ntawm ADPA (vs khoom phenolic AO hmoov) kuj yooj yim rau kev koom ua ke rau hauv cov roj tsim - nws tuaj yeem muab ntxiv ncaj qha rau cov roj hauv paus / xab npum sib xyaw thaum lub sijhawm saponification lossis kub - puv theem. Kev kho mob ib txwm: 0.1–0.3 wt% ntawm cov roj ua tiav, feem ntau ua ke nrog L01 0.1–0.2 wt% rau kev them nyiaj AO dual.
| Daim ntawv thov | ADPA Tus nqi kho mob | Recommended Co-AO | Ntsiab Standard |
|---|---|---|---|
| Ntev - tso tawm PCMO cav roj (15, 000+ km) | 0.2 ~ 0.4 hli | L01 0.3–0.5 wt% + ZDDP 0.7–1.2 wt% | Seq. IIIGH, API SP, ACEA C3, RULER depletion |
| Turbine roj (gas / chav, ISO VG 32-100) | 0.1-0.3 hli | L01 0.1–0.2 wt% (+ BHT 0.1–0.2 wt% yeem) | ASTM D2272 (>3000 min hom phiaj), IEC 60296, GEK-32568 |
| Aviation turbine roj nplua nyeem | 0.5-1.0 wt% | L57-hom (POE tau tshaj) 0.3-0.5 wt% | MIL-PRF-23699, MIL-PRF-7808, DEF STAN 91-101 |
| Hydraulic roj (ISO VG 32-68) | 0.1-0.3 hli | HP-136-hom 0.1-0.2 wt% | Denison HF-0/2, Vickers M-2950-S, DIN 51524 |
| PAO/POE/PAG synthetic lubricant | 0.2-0.8 hli | L57-hom 0.3–0.5 wt% + ZDDP (yog tias P pob nyiaj tso cai) | ASTM D6186 PDSC, D2272 RPVOT, D943 TOST |
| Roj (Li{0}}complex, polyurea, CaSO₃) | 0.1 ~ 0.5 hli | L01-hom 0.1-0.2 wt% | ASTM D3527 (cov kabmob lub neej), D942 (oxidation stability) |
Cov lus nug nquag
Q: Puas yog Alkylated Diphenylamine tiag tiag SAPS-dawb? Cov molecule muaj nitrogen.
Yog -nitrogen (N) tsis yog SAPS cov khoom. SAPS acronym stands rau Sulphated Ash ( ntsuas los ntawm ASTM D482), Phosphorus (ASTM D4951 / ICP), thiab Sulfur (ASTM D1552 / D4294 / ICP). Peb qhov kev txwv no tau raug xaiv hauv ACEA / ILSAC cov lus qhia tshwj xeeb vim: (1) cov hmoov tshauv hlau lub cev thaiv DPF thiab GPF cov lim dej; (2) phosphorus mus tas li deactivates TWC catalyst washcoat (Al₂O₃/CeO₂/ZrO₂) los ntawm kev tsim cov phosphate iav txheej; (3) sulfur deactivates cov khoom muaj nqi hlau catalytic sites (Pt, Pd, Rh) los ntawm sulphate tsim. Nitrogen los ntawm amine antioxidants tsis muaj ib yam ntawm cov no - nws hlawv rau N₂ thiab NO_x nyob rau hauv combustion (uas, thaum pab txhawb rau NO_x emissions, yog ib tug cais kev txhawj xeeb tsis tau ntes nyob rau hauv lub SAPS lub moj khaum). ADPA ntawm txhua tus nqi kho mob ua rau xoom rau ASTM D482 tshauv, xoom P, thiab xoom S - nws yog tag nrho SAPS- ua raws li tag nrho ACEA thiab API specifications nrog SAPS txwv.
Q: Vim li cas siv cov roj uas muaj ADPA tshwm tsaus nti / tsis muaj xim? Qhov no puas yog qhov teeb meem?
Qhov tsaus nti ntawm cov roj siv uas muaj amine antioxidants yogib txwm, xav tau, thiab tsis yog qhov teeb meem zoo. Raws li ADPA tau noj los ntawm qhov radical-scavenging voj voog, nws tau hloov mus rau ruaj khov quinone- cov khoom imine - cov no yog cov khoom sib txuas uas muaj ntxhiab tsw zoo heev (tus yam ntxwv tsaus nti chromophores kuj pom hauv cov laus diphenylamine- muaj cov khoom xws li roj hmab accelerators thiab plaub hau dyes). Cov quinone-cov khoom siv mine yog cov tshuaj tsis muaj zog, tsis yog-corrosive, tsis yog-sludge- tsim, thiab tsis cuam tshuam rau cov roj nplua nyeem. Kev loj hlob xim yog qhov qhia tau zoo ntawm ADPA depletion - raws li ADPA tau noj, cov roj darkens zuj zus. Qhov kev sib raug zoo tsis zoo tag nrho, tab sis kev hloov xim tseem ceeb ntawm amber mus rau xim av tsaus / dub hauv cov roj siv yog qhov zoo sib xws nrog kev ua kom AO qaug zog. Kev ntsuas ADPA depletion ntau yuav tsum tau RULER voltammetry (ASTM D6971) lossis UV-Vis spectrophotometric ntawm ADPA absorption wavelength (~ 280 nm).
Q: ADPA puas tuaj yeem siv los ua cov tshuaj tiv thaiv antioxidant ib txwm, lossis nws puas yuav tsum tau ua ke nrog phenolic AOs?
ADPA tuaj yeem siv ua ib qhoib qho tseem ceeb antioxidant hauv qee daim ntawv thov- tshwj xeeb tshaj yog nyob rau hauv aviation turbine roj (MIL-PRF-}23699 thiab cov kev ntsuas kub zoo sib xws uas cov amine AOs nyiam los ntawm cov lus qhia tshwj xeeb) thiab hauv cov roj turbine / compressor roj uas qhov ntsuas kub tsis tu ncua tshaj 160℃(ua phenolic AOs tsis zoo). Txawm li cas los xij, rau feem ntau automotive thiab industrial lubricant formulations, kev pom zoo kev lag luam yog qhov ntawdKev sib txuas ADPA nrog siab -MW phenolic ester (L01/L57) muab kev tiv thaiv oxidation zoo dua li ib leegntawm tib tus nqi kho mob AO tib yam. Yog vim li cas yog complementary kub qhov rais: nyob rau hauv nruab nrab kub (60-150 degree), phenolic AOs yog ntau reactive rau ROO• thiab muab ceev saw txiav; ADPA tsis tshua muaj tshwm sim nyob rau hauv qhov no. Thaum qhov kub thiab txias (150-200℃+), qhov xwm txheej thim rov qab. A 50:50 molar ua ke ntawm phenolic ester + ADPA muab broad -spectrum AO kev pab them nqi ntawm qhov kub ntawm txias-pib mus rau qhov siab tshaj plaws kev khiav hauj lwm kub - tsis tu ncua outperforming ib leeg-AO mus kom ze nyob rau hauv ASTM D2272 RPVOT, D943 TOST.G, thiab Sequence engine test. ZDDP (secondary AO) tom qab ntawd ntxiv los ua qhov thib peb los rhuav tshem hydroperoxides tsim los ntawm ob qho tib si AO mechanisms.
Technical & Regulatory References
GC (purity Ntau dua lossis sib npaug li 95%) · ASTM D2896 / D974 (amine tus nqi - thawj AO peev ntsuas) · ASTM D482 ( tshauv=0%) · ASTM D93 (flash point Ntau dua lossis sib npaug rau 200 degree) · ASTM D445 (KV dua li @ 40%) (kwv dej sib npaug) ·ASTM D2272 RPVOT (oxidation induction - thawj qhov kev xeem)· ASTM D943 TOST (ntev-lub sijhawm oxidation, 1000–10,000+ teev) · ASTM D6186 PDSC (OIT kuaj) ·ASTM D6971 RULER voltammetry (AO depletion xyuas hauv cov roj siv)· Sequence IIIGH ( cav roj oxidation)
Cov roj cav:API SP/SN+/SN · ILSAC GF-6A/B · ACEA C1–C5 (SAPS-free ✅ - N ≠ SAPS) · ACEA E6/E9 · CK-4/FA-4 · VW 508.00/509.00 · BMW LL-095.1 MB/2Turbine:IEC 60296 · GEK-32568 · Pratt & Whitney PWA 521/522 · Rolls-Royce OMAT · DIN 51515 ·Aviation:MIL-PRF-23699 (Type II/IIIA) · MIL-PRF-7808 · DEF STAN 91-101 ·Compressor:DIN 51506 · ISO VG 32–150 R&O and AW ·Hydraulic:Denison HF-0/2 · DIN 51524-2/3 · ISO 4406 ·Roj:NLGI 1–3 · ASTM D3527 · ASTM D942
CAS 68411-46-1 · EINECS sau npe (sib tov) · REACH raws · TSCA teev · ✅ SAPS-dawb ( tshauv 0%, S 0%, P 0% - N tsis yog SAPS lub caij) · Flash point Ntau dua lossis sib npaug rau 200℃A DR (tsis muaj 1) {3} Cov kev txwv) · GHS SDS muaj (GHS07 - teeb meem yog nqos; tawv nqaij / qhov muag khaus; raug rau amine compounds ntawm kev lag luam tuav cov qib; PPE: hnab looj tes, tsom iav, qhov cua) · RoHS raws · Tsis zaub mov- qib (arromatic amine - tsis pom zoo rau 2 lub hlis kev siv khoom noj) · Shelf life
Phenolic AO Series ✅:BHT (CAS 128-37-0) · 2,6-DTBP Mixture (CAS 14972-27-9) · High MW Phenolic Ester Series (L01/L57/HP-136) →Amine AO Series: Alkylated Diphenylamine CAS 68411-46-1 ✅ (qhov no)· lwm yam amine AO qib →ZDDP Anti-Ntev / AO Series ✅ (tag nrho ntau)
ADPA · CAS 68411-46-1 · Alkylated Diphenylamine · Purity Ntau dua los yog sib npaug li 95% · Tshauv 0% · FP Ntau dua los yog sib npaug rau 200℃· SAPS-Free · Amber Liquid · 25 kg / 200 kg / 1000 LDS2th / Shelf / COA · COA
Thov Tus Nqi, TDS & Kev Pabcuam Kev Pabcuam
Qhia meej rau daim ntawv thov (cov roj cav / turbine / aviation / compressor / roj), hom roj hauv paus, lub sijhawm ntws, thiab qhov kub thiab txias profile. Peb pom zoo kom kho tus nqi zoo thiab co-AO ua ke (ADPA + phenolic ester + ZDDP pawg). Amine tus nqi lub hom phiaj specification muaj rau OEM DI pob txhim kho. Cov qauv (50-500 mL) muaj rau kev sim tshuaj. IBC thiab flexitank muab rau kev siv ntau yam.
Amine Antioxidants Series:
Alkylated Diphenylamine CAS 68411-46-1 (qhov no)· lwm yam amine AO qib →Phenolic AO Series ✅ (BHT · DTBP · High-MW Phenolic Ester) · ZDDP Series ✅
Cim npe nrov: Tuam Tshoj alkylated diphenylamine manufacturers, lwm tus neeg
