Methyl methacrylate

Igoa Saina: methyl methacrylate, e taʻua o le MMA o se vailaʻau mataʻutia taua e mafai ona faʻapipiʻiina e le tagata lava ia pe faʻatasi ma isi monomers i le i ai o le malamalama ma le vevela poʻo le faʻamalosi. E masani ona faʻaaogaina e gaosia ai le polymethyl methacrylate (PMMA mo le puʻupuʻu) ma le polyvinyl chloride aʻafiaga suiga (e pei o le ACR, MBS). E mafai foʻi ona faʻaaogaina i faʻaofuofu, faʻapipiʻi, lolomi ie ​​ma vali vali fesoasoani ma isi fanua. E iai le tele o fa'aoga.

Fa'asologa autu o le MMA
E tele auala faʻapipiʻi mo MMA, e aofia ai le acetone cyanohydrin method (ACH method), isobutylene / tert-butanol oxidation method (C4 method), ethylene method (C2 method), methanol-methyl acetate method (C1 method), ma isi, e tusa ai ia latou O le numera carbon mea mata e eseese ma e mafai ona vaevaeina i le C1 auala, C2 auala, C3 auala ma C4 auala.
Mai se vaaiga i le lalolagi atoa, o le faʻaaogaina masani o le gaosiga o le auala ACH. O lenei faiga faatekinolosi e fai si matua, mautu ma faigofie, faʻamaumauga mo le tusa ma le 61.6% o le gaosiga o le lalolagi, e faʻapitoa i Amerika i Matu, Europa i Sisifo, ma Saina; sosoo ai ma le C4 auala, na atiina ae e Iapani Shokubai Chemical Atinae e Industrial Corporation ma Mitsubishi Rayon Company i le 1982, o le tekinolosi ua alualu i luma, o mea mata e le oona ma le afaina, e itiiti ni mea e maua mai ma e maualalo le tau, tausitusi mo le tusa ma le 30.5% o le gaosiga o le lalolagi.

Meatotino tau vailaau

Suavai e le lanu, e faigofie ona faʻafefe. Soluble i solu fa'aletino eseese e pei ole ethanol, eter, acetone, ma isi. E solu teisi i le ethylene glycol ma le vai.

Fa'aoga

E masani ona faʻaaogaina e pei o se monomer o tioata tioata, ma faʻaaogaina foi e fai ai isi palasitika, paʻu, ma isi.

natura

CAS Nu. 80-62-6

Fua mole mole C5H8O2

Mole mole mamafa 100.12

EINECS Nu. 201-297-

Liu liusuavai -48°C (malamalama)

Mea fa'avela 100°C (malamalama)

Malosi 0.936g/mL ile 25°C (malamalama)

Ausa malosi 3.5 (vsair)

Omiga ausa 29mmHg (20°C)

Itu ole moli 50°F

Tulaga e teu ai 2-8°C Solubility 15g/l Fa'agaga Pa'u tioata po'o tioata

Fa'amatalaga Fa'afeso'ota'i

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