Metilakirirata

Ingoa Hainamana: methyl methacrylate, e kiia nei ko MMA, he rauemi matū mata nui ka taea te whakakotahi-ake, te whakakotahi rānei me ētahi atu monomer i te aroaro o te mārama me te wera, ngā whakakorikori rānei. Ka whakamahia whānuitia hei hanga i te polymethyl methacrylate (PMMA) me ngā whakarerekētanga pānga polyvinyl chloride (pēnei i te ACR, MBS). Ka taea hoki te whakamahi i roto i ngā paninga, ngā piripiri, te tā kakahu me ngā āwhina tae me ētahi atu mara. He whānuitia ōna whakamahinga.

Te tukanga matua o te hanga MMA
He maha ngā tikanga hanga mō te MMA, tae atu ki te tikanga acetone cyanohydrin (tikanga ACH), te tikanga whakakōkī isobutylene/tert-butanol (tikanga C4), te tikanga ethylene (tikanga C2), te tikanga methanol-methyl acetate (tikanga C1), me ētahi atu, e ai ki te maha o ngā waro o ngā rauemi mata, ā, ka taea te wehewehe ki te ara C1, te ara C2, te ara C3 me te ara C4.
Mai i te tirohanga ā-ao, ko te tikanga whakaputa e whakamahia whānuitia ana ko te tikanga ACH. He tino pakari, he pumau, he māmā hoki tēnei hangarau tukanga, e 61.6% o te hanga o te ao, ko te nuinga kei Amerika Te Raki, Ūropi ki te Hauāuru, me Haina; ā, whai muri ko te tikanga C4, i whakawhanakehia e Japan Shokubai Chemical. I whakawhanakehia e Industrial Corporation me Mitsubishi Rayon Company i te tau 1982, he matatau te hangarau, kāore he paitini, kāore hoki he kino o ngā rauemi mata, he iti noa ngā hua taha, ā, he iti te utu, e 30.5% o te hanga o te ao.

Ngā Āhuatanga Matū

He wai kore tae, he ngāwari ki te memeha. Ka wairewa i roto i ngā whakarewa rauropi maha pērā i te etanoru, te etera, te acetone, me ētahi atu. He paku wairewa i roto i te etilena glikol me te wai.

Whakamahinga:

E whakamahia ana hei monomer o te karāhe waro, ā, e whakamahia ana hoki hei hanga i ētahi atu kirihou, paninga, me ētahi atu.

taiao

Nama CAS 80-62-6

Te tātai ngota C5H8O2

Taumaha ngota 100.12

EINECS Nama 201-297-

Te ira rewa -48°C (iritihia)

Te pūwāhi koropupū 100°C (ipurangi)

Kiato 0.936g/mL i te 25°C (i te rama)

Te mātotoru o te kohu 3.5 (vsair)

Pēhanga kohu 29mmHg (20°C)

Pūwāhi mura 50°F

Ngā tikanga rokiroki 2-8°C Te wairewatanga 15g/l Te āhua Paura tioata, tioata rānei

Ngā Mōhiohio Whakapā

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