Methyl methacrylate

Lebitso la Sechaena: methyl methacrylate, e tsejoang e le MMA ke thepa ea bohlokoa ea lik'hemik'hale e ka iketsang polymerize kapa copolymerize le li-monomer tse ling ha ho na le khanya le mocheso kapa li-catalyst. E sebelisoa haholo ho hlahisa polymethyl methacrylate (PMMA ka bokhutšoanyane) le li-polymer tsa phello ea polyvinyl chloride (tse kang ACR, MBS). E ka boela ea sebelisoa ho li-coatings, likhomaretsi, khatiso ea masela le li-auxiliaries tsa ho daea le masimo a mang. E na le mefuta e mengata ea ts'ebeliso.

Mokhoa o ka sehloohong oa ho kopanya MMA
Ho na le mekhoa e mengata ea ho kopanya MMA, ho kenyeletsoa mokhoa oa acetone cyanohydrin (mokhoa oa ACH), mokhoa oa oxidation oa isobutylene/tert-butanol (mokhoa oa C4), mokhoa oa ethylene (mokhoa oa C2), mokhoa oa methanol-methyl acetate (mokhoa oa C1), jj., ho latela mokhoa oa bona. Palo ea carbon ea thepa e tala e fapane 'me e ka aroloa ka tsela ea C1, tsela ea C2, tsela ea C3 le tsela ea C4.
Ho ya ka pono ya lefatshe ka bophara, mokgwa wa tlhahiso o sebediswang haholo ke mokgwa wa ACH. Theknoloji ena ya tshebetso e hodile, e tsitsitse ebile e bonolo, e ikarabella bakeng sa hoo e ka bang 61.6% ya tlhahiso ya lefatshe, haholoholo Amerika Leboya, Yuropa Bophirima le Chaena; e latelwa ke mokgwa wa C4, o ntshetsweng pele ke Japane Shokubai Chemical E ntshetsweng pele ke Industrial Corporation le Mitsubishi Rayon Company ka 1982, theknoloji e tswetse pele, thepa e tala ha e na chefo ebile ha e na kotsi, ho na le dihlahiswa tse mmalwa tse setseng mme theko e tlase, e ikarabella bakeng sa hoo e ka bang 30.5% ya tlhahiso ya lefatshe.

Thepa ea Lik'hemik'hale

Mokelikeli o se nang 'mala, o fetoha habonolo. O qhibiliha ka har'a metsoako e fapaneng ea lintho tse phelang joalo ka ethanol, ether, acetone, jj. E qhibiliha hanyane ka har'a ethylene glycol le metsi.

Tšebeliso:

Haholo-holo e sebelisoa e le monomer ea khalase ea tlhaho, 'me e boetse e sebelisoa ho etsa polasetiki e meng, lipente, jj.

tlhaho

Nomoro ea CAS 80-62-6

Foromo ea limolek'hule C5H8O2

Boima ba limolek'hule 100.12

EINECS Nomoro ea 201-297-

Boemo ba ho qhibiliha -48°C (ho bonesa)

Boemo ba ho belisa 100°C (ho bonesa)

Botenya 0.936g/mL ho 25°C (ha e le hantle)

Boima ba mouoane 3.5 (vsair)

Khatello ea mouoane 29mmHg (20°C)

Sebaka sa ho phatloha ha mollo 50°F

Maemo a polokelo 2-8°C Ho qhibiliha ha 15g/l Sebopeho Phofo ea kristale kapa kristale

Mokhoa oa puisano

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