I-Methyl methacrylate

Igama lesiTshayina: i-methyl methacrylate, ebizwa ngokuba yi-MMA yinto ebalulekileyo yekhemikhali enokuzenza i-polymer okanye i-copolymerise kunye nezinye ii-monomers xa kukho ukukhanya nobushushu okanye ii-catalysts. Isetyenziswa kakhulu ukuvelisa i-polymethyl methacrylate (PMMA ngamafutshane) kunye nee-polyvinyl chloride impact modifiers (ezifana ne-ACR, i-MBS). Ingasetyenziswa nakwii-coating, i-adhesives, i-textile printing kunye ne-dyeing auxiliaries kunye nezinye iindawo. Ineendlela ezahlukeneyo zokusetyenziswa.

Inkqubo ephambili yokwenziwa kwe-MMA
Kukho iindlela ezininzi zokwenziwa kwe-MMA, kuquka 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), njl.njl., ngokwendlela yabo. Inombolo yekhabhoni yezinto ezikrwada yahlukile kwaye inokwahlulwa ibe yindlela ye-C1, indlela ye-C2, indlela ye-C3 kunye nendlela ye-C4.
Ngokwembono yehlabathi, inkqubo yemveliso esetyenziswa kakhulu yindlela ye-ACH. Le teknoloji yenkqubo ivuthiwe, izinzile kwaye ilula, ibandakanya malunga ne-61.6% yemveliso yehlabathi, ikakhulu egxile eMntla Melika, eNtshona Yurophu, naseTshayina; ilandelwa yindlela ye-C4, eyaphuhliswa yiJapan Shokubai Chemical Yaphuhliswa yi-Industrial Corporation kunye neMitsubishi Rayon Company ngo-1982, le teknoloji iphucukile, izinto eziluhlaza azinabungozi kwaye azinabungozi, zimbalwa iimveliso ezishiyekileyo kwaye ixabiso liphantsi, limalunga ne-30.5% yemveliso yehlabathi.

Iipropati zeKhemikhali

Ulwelo olungenambala, olutshintshatshintsha lula. Lunyibilika kwiintlobo ngeentlobo zezinyibilikisi zendalo ezifana ne-ethanol, i-ether, i-acetone, njl. Lunyibilika kancinci kwi-ethylene glycol namanzi.

Ukusetyenziswa:

Isetyenziswa kakhulu njenge-monomer yeglasi yendalo, kwaye ikwasetyenziselwa ukwenza ezinye iiplastiki, ii-coating, njl.

indalo

Inombolo ye-CAS 80-62-6

Ifomula yemolekyuli C5H8O2

Ubunzima be-molecular 100.12

Inombolo ye-EINECS 201-297-

Iqondo lokunyibilika -48°C (elikhanyayo)

Iqondo lokubila yi-100°C (elikhanyayo)

Uxinano 0.936g/mL kwi-25°C (elithayo)

Uxinano lomphunga 3.5 (vsair)

Uxinzelelo lomphunga 29mmHg (20°C)

Incopho yokutshaza 50°F

Iimeko zokugcina 2-8°C Ukunyibilika 15g/l Ifomu Umgubo wekristale okanye ikristale

Iinkcukacha zoqhakamshelwano

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