Methyl methacrylate

Zita rechiChinese: methyl methacrylate, inonzi MMA chinhu chakakosha chemakemikari chinogona kuzvigadzirisa kana kupora pamwe chete nemamwe mamonomer kana paine chiedza nekupisa kana macatalysts. Inonyanya kushandiswa kugadzira polymethyl methacrylate (PMMA muchidimbu) uye polyvinyl chloride impact modifiers (senge ACR, MBS). Inogona zvakare kushandiswa mu coatings, adhesives, textile printing uye dyeing auxiliaries nedzimwe nzvimbo. Ine mashandisirwo akasiyana-siyana.

Maitiro makuru ekugadzira MMA
Kune nzira dzakawanda dzekugadzira MMA, dzinosanganisira nzira yeacetone cyanohydrin (nzira yeACH), nzira yeisobutylene/tert-butanol oxidation (nzira yeC4), nzira yeethylene (nzira yeC2), nzira yemethanol-methyl acetate (nzira yeC1), nezvimwewo, zvichienderana nenhamba yavo yecarbon raw material yakasiyana uye inogona kukamurwa kuita nzira yeC1, nzira yeC2, nzira yeC3 uye nzira yeC4.
Kubva pamaonero epasi rose, nzira yekugadzirwa inonyanya kushandiswa ndiyo nzira yeACH. Iyi tekinoroji yekugadzirwa kwezvinhu yakakura, yakagadzikana uye iri nyore, ichitora inenge 61.6% yekugadzirwa kwenyika, kunyanya kuNorth America, Western Europe, neChina; ichiteverwa nenzira yeC4, yakagadzirwa neJapan Shokubai Chemical Yakagadzirwa neIndustrial Corporation neMitsubishi Rayon Company muna 1982, tekinoroji iyi yafambira mberi, zvinhu zvisina chepfu uye hazvina njodzi, kune zvigadzirwa zvishoma uye mutengo wayo wakaderera, ichitora inenge 30.5% yekugadzirwa kwenyika.

Zvimiro zveMakemikoro

Mvura isina ruvara, inoshanduka-shanduka nyore nyore. Inonyungudika muzvinhu zvakasiyana-siyana zvinonyungudutsa zvakaita se ethanol, ether, acetone, nezvimwewo. Inonyungudika zvishoma mu ethylene glycol nemvura.

Mashandisirwo:

Inonyanya kushandiswa semonomer yegirazi reorganic, uye inoshandiswawo kugadzira mamwe mapurasitiki, machira, nezvimwewo.

zvakasikwa

Nhamba yeCAS 80-62-6

Fomura yemamorekuru C5H8O2

Kurema kwemamorekuru 100.12

EINECS Nhamba 201-297-

Pokunyunguduka -48°C (yakapfava)

Pokufashaira 100°C (yakapfava)

Kuwanda kwemvura 0.936g/mL pa25°C (yakapfava)

Kuwanda kwemhepo ine utsi 3.5 (vsair)

Kumanikidzwa kwemhepo 29mmHg (20°C)

Pokupenya kwechiedza 50°F

Mamiriro ekuchengetera 2-8°C Kunyungudika 15g/l Kuumbwa kwehupfu hwekristaro kana kristaro

Ruzivo rwekuonana

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