Methyl Methacrylate (MMA), tseem hu ua MMA monomer, yog cov khoom tsis muaj xim, tsis muaj kuab lom tshuaj lom neeg muaj npe nyob rau hauv CAS 80-62-6. MMA tseem ceeb hauv kev lag luam vim nws yog lub tsev thaiv ncaj qha ntawm polymethyl methacrylate (PMMA) - acrylic resin siv rau hauv txhua yam los ntawm kev tsim vaj huam sib luag rau tsheb teeb pom kev zoo thiab kev kho mob - qib acrylic ntawv - uas ua rau MMA yog ib lub siab tshaj plaws - ntim monomers nyob rau hauv lub ntiaj teb no polymer mov saw. Kev lag luam, MMA yog tsim los ntawm peb txoj hauv kev tseem ceeb: cov txheej txheem acetone cyanohydrin (ACH), C4 txheej txheem oxidation, thiab cov txheej txheem tshiab ethylene, txhua qhov sib txawv feedstocks, cov qauv nqi, thiab ib puag ncig profiles. Phau ntawv qhia no hais txog yuav ua li cas MMA yog tsim, cov khoom siv raw tom qab txhua txoj kev tsim khoom, MMA cov ntawv thov tseem ceeb, cov khoom lag luam-qib specifications, thiab cov neeg yuav khoom yuav tsum txheeb xyuas dab tsi ua ntej muab MMA monomer hauv ntau.
Methyl Methacrylate (MMA) yog dab tsi?
Methyl methacrylate yog methyl ester ntawm methacrylic acid, thiab nws lub luag haujlwm ntawm kev lag luam yog raws li cov monomer uas polymerizes rau hauv PMMA acrylic resin. Tshuaj,MMA (CAS 80-62-6)muaj cov mis molecular C₅H₈O₂ thiab molecular hnyav ntawm 100.12 g/mol; Nws tshwm sim raws li cov kua tsis muaj xim, tsis muaj kuab lom heev nrog cov ntxhiab tsw ntxhiab, qhov kub tsis tshua muaj kub, thiab qhov chaw qis qis - cov khoom uas ncaj qha rau nws yuav tsum tau thauj, khaws cia, thiab ua li cas.
| Khoom | Tus nqi |
|---|---|
| CAS Nr | 80-62-6 |
| Formula | C₅H₈O₂ |
| Molecular Luj | 100.12 g / mol |
| Qhov tshwm sim | Cov kua dej tsis muaj xim |
| Boiling Point | 101 degree |
| Flash Point | 10 degree |
Methyl Methacrylate Ua li cas?
MMA monomer yog tsim los ntawm peb txoj hauv kev lag luam tseem ceeb, thiab kev xaiv ntawm lawv feem ntau los ntawm cov nqi khoom noj, cov nplai cog, thiab kev ua raws li ib puag ncig es tsis yog qhov sib txawv ntawm cov khoom kawg ntawm cov khoom siv tshuaj lom neeg - kev lag luam MMA los ntawm ib qho ntawm peb txoj kev ua tau raws li tib yam CAS 80-62-6 specification.
1. Acetone Cyanohydrin (ACH) txheej txheem
Cov txheej txheem ACH yog qhov qub tshaj plaws thiab feem ntau siv txoj kev lag luam mus rau MMA, ua ib ncig ntawm cov tshuaj tiv thaiv ntawm acetone thiab hydrogen cyanide. Cov ntaub ntawv raw yog ncaj nraim: acetone thiab hydrogen cyanide (HCN) hnov mob rau daim ntawv acetone cyanohydrin, uas yog tom qab ntawd hloov dua siab tshiab los ntawm methacrylamide sulfate ua ntej kawg ua tiav yields MMA.
ACH txoj hauv kev zoo dua yog tias nws yog tus paub tab, zoo - thev naus laus zis pov thawj nrog ntau xyoo dhau los ntawm kev ua haujlwm keeb kwm thiab muaj dav ntawm cov txheej txheem tsim muaj ntawv tso cai, yog vim li cas nws tseem siv dav hauv MMA kev tsim khoom thoob ntiaj teb. Nws qhov kev sib tw tseem ceeb yog cov txheej txheem yuav tsum tau tuav cov hydrogen cyanide, ib qho tshuaj lom neeg nruab nrab, thiab tsim cov ammonium sulfate byproduct kwj uas yuav tsum tau muaj kev kho cov khib nyiab tshwj xeeb - ob qho tib si ntxiv kev nyab xeeb thiab ib puag ncig- kev ua raws li tus nqi txheeb ze rau txoj kev tshiab.
2. C4 txheej txheem oxidation
C4 oxidation txheej txheem pib los ntawm C4 hydrocarbon feedstocks - isobutylene los yog tert -butanol - es tsis yog acetone thiab cyanide, zam HCN tuav nkaus. Cov tshuaj tiv thaiv tshwm sim los ntawm ob -kauj ruam oxidation: isobutylene yog oxidized rau methacrolein, uas yog ntxiv oxidized rau methacrylic acid ua ntej esterification tsim MMA.
Lub hom phiaj tseem ceeb ntawm txoj kev C4 yog nws qhov tsim nyog rau qhov loj - teev ntau lawm, txij li isobutylene thiab tert -butanol muaj nyob rau hauv cov ntim siab los ntawm refinery thiab petrochemical kwj, ua cov txheej txheem no zoo haum rau loj integrated ntau lawm complexes.
3. Ethylene-Raws li txheej txheem
Cov txheej txheem ethylene-raws li txheej txheem yog txoj kev lag luam tshiab tshaj plaws rau MMA, tsim tshwj xeeb los txo cov dej khib nyiab cuam tshuam nrog cov thev naus laus zis qub. Vim tias nws tsis cia siab rau hydrogen cyanide los yog tsim kom muaj tib lub ntim ntawm sulfate byproducts raws li cov txheej txheem ACH, cov ethylene-raws li txoj kev muaj cov khoom pov tseg qis dua thiab kev ruaj ntseg zoo dua qub, uas yog qhov cuam tshuam ntau dua li cov neeg tsim khoom ntsib kev nruj ib puag ncig kev cai ntawm cyanide tuav thiab pov tseg byproduct.
Kev sib piv ntawm MMA Cov Txheej Txheem Ntau Lawm
Peb txoj kev tsim khoom sib txawv tshaj plaws hauv cov khoom noj khoom haus, qhov kom zoo dua, thiab kev sib tw ua haujlwm, uas yog cov ntsiab lus tseem ceeb rau cov neeg yuav khoom sim nkag siab tias vim li cas MMA tus nqi thiab cov khoom muaj tuaj yeem hloov pauv los ntawm cheeb tsam thiab los ntawm tus neeg muag khoom.
| Txheej txheem | Raw Khoom | Qhov zoo | Kev sib tw |
|---|---|---|---|
| ACH | Acetone + HCN | Mature technology, dav muaj | Cyanide tuav, pov tseg kev kho mob |
| C4 oxidation | Isobutylene / tert -Butanol | Haum rau kev lag luam- nplai ntau lawm | Feedstock muaj |
| Ethylene-raws li | Ethylene | Tsawg pov tseg, zoo dua sustainability | Tus nqi siv tshuab siab dua |
Cov khoom siv raw siv rau kev tsim MMA
Cov neeg yuav khoom tshawb fawb MMA cov ntaub ntawv raw yog feem ntau ntsuas cov khoom siv -cov saw raug pom - txij li MMA tus nqi taug qab tus nqi thiab qhov muaj nyob ntawm nws cov khoom noj khoom haus ntau dua li nws taug qab xav tau ib leeg. Plaub yam khoom siv raw khoom noj thoob ntiaj teb MMA ntau lawm yog acetone, hydrogen cyanide, isobutylene, thiab methanol, nrog rau kev sib xyaw tshwj xeeb nyob ntawm seb txoj kev tsim khoom siv cov nroj tsuag twg. Acetone thiab hydrogen cyanide pub rau ACH txoj kev; isobutylene (los yog tert-butanol) pub rau C4 oxidation txoj kev; thiab methanol yuav tsum tau hla txhua txoj hauv kev raws li tus neeg sawv cev esterifying uas hloov methacrylic acid los yog methacrylamide intermediates rau hauv qhov kawg methyl ester, MMA.
Daim ntawv thov Methyl Methacrylate
MMA qhov kawg loj tshaj plaws -siv los ntawm ntim yog raws li lub monomer rau PMMA acrylic ntawv, tab sis nws daim ntawv thov ntau yam nthuav dav thoob plaws kev tsim kho, tsheb, txheej, nplaum, thiab cov ntaub ntawv kho mob, uas yog vim li cas MMA xav tau mus taug qab dav kev lag luam thiab kev tsim kho kev ua si.
| Kev lag luam | Daim ntawv thov |
|---|---|
| PMMA | Acrylic ntawv |
| Kev tsim kho | Panels thiab glazing |
| Automotive | Teeb pom kev zoo |
| Txheej txheej | Cov txheej txheem tiv thaiv |
| Adhesives | Kev sib txuas ua ke |
| Kho mob | Cov ntaub ntawv kho hniav |
MMA Monomer Qib thiab Specifications
Kev lag luamMMA monomeryog muag tawm tsam qhov tshwj xeeb nruj, txij li txawm tias qhov sib txawv me me hauv purity los yog ya raws tuaj yeem cuam tshuam rau hauv qab dej polymerization zoo hauv PMMA ntau lawm. Ib qho kev lag luam ib txwm - qib MMA specification yuav tsum purity ntawm 99.9% los yog siab dua, dej cov ntsiab lus capped ntawm 0.05%, xim txwv rau APHA 10 los yog qis dua, thiab ntxiv ib qho MEHQ (hydroquinone monomethyl ether) inhibitor los tiv thaiv ntxov ntxov polymerization thaum lub sij hawm cia thiab thauj.
| Parameter | Tus nqi |
|---|---|
| Purity | Ntau dua lossis sib npaug li 99.9% |
| Dej | Tsawg dua lossis sib npaug li 0.05% |
| Xim | APHA Tsawg dua lossis sib npaug rau 10 |
| MEHQ Inhibitor | Ntxiv |
MEHQ inhibitor specification yog tsim nyog chij nyias rau cov neeg yuav khoom: MMA monomer inherently reactive thiab yuav pib polymerize spontaneously tsis muaj ib tug inhibitor tam sim no, yog li txhua tus MMA quote los yog CoA uas tsis paub meej tias inhibitor cov ntsiab lus thiab concentration yuav tsum tau kho raws li ib tug specification kis, tsis yog ib tug me me omission.
Cia thiab tuav yuav tsum tau rau MMA
MMA qhov qis qis ntawm 10℃txhais tau tias nws yuav tsum tau muab cais thiab khaws cia ua cov kua hluav taws xob, uas yog qhov pib rau txhua qhov chaw cia lossis tuav cov txheej txheem. Vim hais tias MMA yog volatile thiab pheej ua rau spontaneous polymerization yam tsis muaj kev tiv thaiv inhibitor txaus, thaj chaw cia yuav tsum tau tswj qhov kub thiab txias kom qeeb cov tshuaj tiv thaiv polymerization, cov ntaub ntawv pov thawj inhibitor (MEHQ) cov ntsiab lus khaws cia thoob plaws lub sijhawm cia, thiab qhov cua kom txaus kom muaj cov pa ntau hauv qab cov nplaim taws hauv qhov chaw kaw. Tus qauv flammable-kev coj ua kua dej - ua kom MMA kom deb ntawm qhov chaw kub, qhov chaw hluav taws xob, thiab cov oxidizers muaj zog - siv ntxiv rau cov inhibitor- tshwj xeeb saib xyuas uas txawv MMA los ntawm ntau cov kuab tshuaj ruaj khov.
Kev Qhia Txog Kev Yuav: Yuav Ua Li Cas Xaiv Ib Tus Neeg Siv Khoom MMA Txhim Kho
Kev xaiv tus neeg muag khoom MMA txhim khu kev qha yuav tsum muaj ntau tshaj qhov sib piv cov nqi. Cov neeg yuav khoom yuav tsum txheeb xyuas CAS No. (80-62-6), purity, inhibitor cov ntsiab lus, thiab thov cov ntaub ntawv tshwj xeeb CoA, SDS, thiab TDS cov ntaub ntawv los xyuas kom meej cov khoom zoo thiab kev nyab xeeb.
Tianjin Gnee Biotech Co., Ltdsiab- zoo MMA monomer nrog cov ntaub ntawv ua tiav, suav nrog CoA, SDS, thiab TDS. Peb muab cov kev xaiv ntim tau yooj yim xws li 200kg nruas, ISO tso tsheb hlau luam, thiab flexitanks kom tau raws li qhov sib txawv ntawm qhov kev txiav txim ntim thiab xa khoom.
Cov lus nug nquag
Puas yog MMA tib yam li methyl methacrylate?
Yog lawm. "MMA" yog tus qauv kev lag luam luv luv rau methyl methacrylate, sau npe raws li CAS 80-62-6; ob nqe lus hais txog qhov sib xyaw ua ke.
MMA monomer siv rau dab tsi?
MMA monomer qhov tseem ceeb siv yog ua lub tsev thaiv rau PMMA (acrylic) resin, siv nyob rau hauv acrylic ntawv, kev tsim vaj huam sib luag, tsheb teeb pom kev zoo, txheej, nplaum, thiab cov ntaub ntawv kho hniav.
Yuav ua li cas yog MMA tsim industrially?
MMA yog tsim los ntawm peb txoj hauv kev tseem ceeb: txheej txheem acetone cyanohydrin (ACH), C4 txheej txheem oxidation siv isobutylene lossis tert-butanol, thiab cov txheej txheem tshiab ethylene- raws li txheej txheem.
Dab tsi raw khoom siv los ua MMA?
Nyob ntawm txoj kev tsim khoom, MMA yog tsim los ntawm acetone thiab hydrogen cyanide (ACH txheej txheem), isobutylene lossis tert-butanol (C4 txheej txheem oxidation), lossis ethylene (ethylene{2}} txheej txheem), nrog methanol yuav tsum tau hla txhua txoj hauv kev rau esterification.
Puas yog methyl methacrylate flammable?
Yog lawm. MMA muaj lub teeb nyem ntawm 10 degree, uas faib nws ua cov kua hluav taws xob uas yuav tsum tau muaj cov nplaim hluav taws kub hnyiab tau - kua cia thiab tuav ceev ceev.
Dab tsi purity yog kev lag luam MMA?
Kev lag luam-qib MMA monomer feem ntau teev nyob rau ntawm 99.9% purity lossis siab dua, nrog cov ntsiab lus dej tsawg dua lossis sib npaug li 0.05%, xim Tsawg dua lossis sib npaug rau APHA 10, thiab MEHQ inhibitor ntxiv los tiv thaiv polymerization ntxov ntxov.