methyl methacrylate

Sunan Sinanci: methyl methacrylate, wanda ake magana da shi a matsayin MMA wani muhimmin sinadari ne danye wanda zai iya sarrafa kansa ko polymerize tare da sauran monomers a gaban haske da zafi ko masu kara kuzari. An fi amfani dashi don samar da polymethyl methacrylate (PMMA a takaice) da kuma polyvinyl chloride masu gyara tasiri (irin su ACR, MBS). Hakanan za'a iya amfani dashi a cikin sutura, adhesives, bugu na yadi da rini da sauran fannoni. Yana da faffadan amfani.

Babban tsarin hadawa na MMA
Akwai hanyoyi da yawa na kira don MMA, ciki har da hanyar acetone cyanohydrin (hanyar ACH), hanyar isobutylene / tert-butanol oxidation (hanyar C4), hanyar ethylene (hanyar C2), hanyar methanol-methyl acetate (hanyar C1), da dai sauransu, bisa ga zuwa ga su Lambar carbon ɗin albarkatun ƙasa ya bambanta kuma ana iya raba shi zuwa hanyar C1, hanyar C2, hanyar C3 da hanyar C4.
Daga hangen nesa na duniya, tsarin samarwa da aka fi amfani dashi shine hanyar ACH. Wannan fasaha na tsari balagagge, tsayayye kuma mai sauƙi, yana lissafin kusan kashi 61.6% na abubuwan da ake samarwa a duniya, galibi an tattara su a Arewacin Amurka, Yammacin Turai, da China; biye da hanyar C4, wanda Japan Shokubai Chemical ta haɓaka ta Kamfanin Masana'antu da Kamfanin Mitsubishi Rayon a cikin 1982, fasahar ta ci gaba, albarkatun ƙasa ba su da guba kuma ba su da lahani, akwai 'yan samfuran da ba su da yawa kuma farashin yana da ƙasa, lissafin kuɗi. kusan kashi 30.5% na abin da ake samarwa a duniya.

Abubuwan Sinadarai

Ruwa mara launi, mai sauƙin canzawa. Mai narkewa a cikin nau'ikan kaushi daban-daban kamar ethanol, ether, acetone, da sauransu. Dan kadan mai narkewa a cikin ethylene glycol da ruwa.

Amfani:

An fi amfani dashi azaman monomer na gilashin halitta, kuma ana amfani dashi don yin wasu robobi, sutura, da sauransu.

yanayi

CAS Lamba 80-62-6

Tsarin kwayoyin halitta C5H8O2

Nauyin kwayoyin halitta 100.12

EINECS Lamba 201-297-

Matsayin narkewa -48°C (lit.)

Wurin tafasa 100°C (lit.)

Yawaita 0.936g/ml a 25°C (lit.)

Yawan tururi 3.5

Matsin tururi 29mmHg (20°C)

Wurin walƙiya 50°F

Yanayin ajiya 2-8°C Solubility 15g/l Form Crystalline foda ko crystal

Bayanin hulda

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