Methyl methacrylate

Aha ndị China: methyl methacrylate, nke a na-akpọ MMA bụ ihe dị mkpa e ji kemịkalụ mee nke nwere ike ime ka ọ bụrụ polymerize ma ọ bụ copolymerize na monomers ndị ọzọ ma ọ bụrụ na ìhè na okpomọkụ ma ọ bụ ihe na-akpali akpali. A na-ejikarị ya emepụta polymethyl methacrylate (PMMA n'ụzọ dị mkpirikpi) na polyvinyl chloride impact modifiers (dịka ACR, MBS). A pụkwara iji ya mee ihe na mkpuchi, ihe nrapado, ibipụta ákwà na ihe enyemaka agba agba na mpaghara ndị ọzọ. O nwere ọtụtụ ojiji.

Usoro nhazi isi nke MMA
E nwere ọtụtụ ụzọ mmepụta maka MMA, gụnyere usoro acetone cyanohydrin (usoro ACH), usoro oxidation isobutylene/tert-butanol (usoro C4), usoro ethylene (usoro C2), usoro methanol-methyl acetate (usoro C1), wdg, dịka ha si dị. Nọmba carbon dị iche ma enwere ike kewaa ya n'ụzọ C1, ụzọ C2, ụzọ C3 na ụzọ C4.
Site n'echiche zuru ụwa ọnụ, usoro mmepụta kachasị eji eme ihe bụ usoro ACH. Teknụzụ usoro a bụ nke tozuru okè, kwụsiri ike ma dị mfe, na-aza ihe dị ka 61.6% nke mmepụta ụwa, nke a na-elekwasị anya na North America, Western Europe, na China; sochiri usoro C4, nke Japan Shokubai Chemical mepụtara site na Industrial Corporation na Mitsubishi Rayon Company mepụtara na 1982, teknụzụ ahụ dị elu, ihe ndị e ji emepụta ya anaghị egbu egbu ma na-emerụ ahụ, enwere obere ngwaahịa ndị ọzọ na ọnụ ahịa ha dị ala, ihe ruru ihe dị ka 30.5% nke mmepụta ụwa.

Njirimara Kemịkalụ

Mmiri mmiri na-enweghị agba, ọ na-agbanwe ngwa ngwa. Ọ na-agbaze n'ọtụtụ ihe mgbaze organic dịka ethanol, ether, acetone, wdg. Ọ na-agbaze ntakịrị na ethylene glycol na mmiri.

Ojiji:

A na-ejikarị ya eme ihe dị ka monomer nke iko organic, a na-ejikwa ya eme plastik ndị ọzọ, ihe mkpuchi, wdg.

okike

Nọmba CAS 80-62-6

Usoro molekụla C5H8O2

Ibu molekụla 100.12

EINECS Nke 201-297-

Ebe agbaze -48°C (ọkụ)

Ebe esi mmiri ọkụ 100°C (ọkụ)

Njupụta 0.936g/mL na 25°C (ọkụ)

Njupụta uzuoku 3.5 (vsair)

Nrụgide uzuoku 29mmHg (20°C)

Ebe ọkụ 50°F

Ọnọdụ nchekwa 2-8°C Mmiri 15g/l Ụdị ntụ ntụ kristal ma ọ bụ kristal

Ozi mkpọtụrụ

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