I-methyl methacrylate

Igama lesiShayina: i-methyl methacrylate, ebizwa ngokuthi i-MMA iyinto ebalulekile yamakhemikhali eluhlaza ekwazi ukuzi-polymerize noma i-copolymerize namanye ama-monomers phambi kokukhanya nokushisa noma ama-catalysts. Isetshenziswa kakhulu ukukhiqiza i-polymethyl methacrylate (i-PMMA ngamafuphi) kanye ne-polyvinyl chloride effect modifiers (njenge-ACR, MBS). Ingasetshenziswa futhi kuma-coatings, ama-adhesives, ama-textile printing and dyeing asiza kanye neminye imikhakha. Inezinhlobonhlobo zokusetshenziswa.

Inqubo yokuhlanganisa eyinhloko ye-MMA
Ziningi izindlela zokuhlanganisa ze-MMA, okuhlanganisa indlela ye-acetone cyanohydrin (indlela ye-ACH), indlela ye-isobutylene/tert-butanol oxidation (indlela ye-C4), indlela ye-ethylene (indlela ye-C2), indlela ye-methanol-methyl acetate (indlela ye-C1), njll., ngokusho kweyabo Inombolo yekhabhoni yezinto ezingavuthiwe ihlukile futhi ingahlukaniswa ngomzila u-C1, umzila we-C2, umzila we-C3 kanye nomzila we-C4.
Ngokombono womhlaba wonke, inqubo yokukhiqiza esetshenziswa kakhulu yindlela ye-ACH. Lobu buchwepheshe benqubo buvuthiwe, buzinzile futhi bulula, bulinganiselwa ku-61.6% wokukhiqizwa komhlaba, ikakhulukazi eNyakatho Melika, eNtshonalanga Yurophu naseChina; kulandelwe indlela ye-C4, eyasungulwa yi-Japan Shokubai Chemical Developed by Industrial Corporation and Mitsubishi Rayon Company ngo-1982, ubuchwepheshe buthuthukile, izinto zokusetshenziswa azinabuthi futhi azinabungozi, zimbalwa imikhiqizo ekhiqizwayo futhi izindleko ziphansi, ukubalwa kwezimali. cishe u-30.5% womkhiqizo womhlaba.

Chemical Properties

Uketshezi olungenambala, oluguquguquka kalula. Incibilika kuzincibilikisi ezihlukahlukene eziphilayo njenge-ethanol, i-ether, i-acetone, njll. Incibilika kancane ku-ethylene glycol nasemanzini.

Ukusetshenziswa:

Isetshenziswa kakhulu njenge-monomer yengilazi ye-organic, futhi isetshenziselwa ukwenza amanye amapulasitiki, ama-coatings, njll.

imvelo

Inombolo ye-CAS 80-62-6

Ifomula yemolekyuli C5H8O2

Isisindo se-molecule 100.12

I-EINECS No. 201-297-

Iphuzu lokuncibilika -48°C (lit.)

Iphuzu lokubilisa elingu-100°C (lit.)

Ukuminyana 0.936g/mL ku-25°C (lit.)

Ukuminyana komhwamuko 3.5 (vsair)

Umfutho we-vapor 29mmHg (20°C)

Iphoyinti elikhanyayo ngu-50°F

Izimo zesitoreji 2-8°C Ukuncibilika 15g/l Yenza i-Crystalline powder noma ikristalu

Ulwazi lokuxhumana

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