I-Methyl methacrylate

Igama lesiShayina: i-methyl methacrylate, ebizwa ngokuthi i-MMA iyinto ebalulekile yokusetshenziswa kwamakhemikhali engazilungisa ngokwayo noma i-copolymerize namanye ama-monomers lapho kukhona ukukhanya nokushisa noma ama-catalyst. Isetshenziswa kakhulu ukukhiqiza ama-polymethyl methacrylate (PMMA ngamafuphi) kanye nama-polyvinyl chloride impact modifiers (njenge-ACR, i-MBS). Ingasetshenziswa futhi ekumbozeni, ekunamathiseni, ekunyatheliseni izindwangu kanye nasezinsizeni zokudaya kanye neminye imikhakha. Inezinhlobo eziningi zokusetshenziswa.

Inqubo eyinhloko yokwenziwa kwe-MMA
Kunezindlela eziningi zokwenziwa kwe-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 kwabo. Inombolo yekhabhoni yezinto zokusetshenziswa ihlukile futhi ingahlukaniswa ibe yindlela ye-C1, indlela ye-C2, indlela ye-C3 kanye nendlela ye-C4.
Ngokombono womhlaba wonke, inqubo yokukhiqiza esetshenziswa kakhulu yindlela ye-ACH. Lobu buchwepheshe benqubo buvuthiwe, buzinzile futhi bulula, buhlanganisa cishe u-61.6% womkhiqizo womhlaba, ikakhulukazi eNyakatho Melika, eNtshonalanga Yurophu, naseShayina; kulandelwe indlela ye-C4, eyathuthukiswa yiJapan Shokubai Chemical. Yathuthukiswa yi-Industrial Corporation kanye neMitsubishi Rayon Company ngo-1982, ubuchwepheshe buthuthukile, izinto zokusetshenziswa azinabo ubuthi futhi azinangozi, kunemikhiqizo embalwa engaphansi futhi izindleko ziphansi, zihlanganisa cishe u-30.5% womkhiqizo womhlaba.

Izakhiwo Zamakhemikhali

Uketshezi olungenambala, olushintshashintsha kalula. Luncibilika ezinyibilikisini ezahlukahlukene zezinto eziphilayo ezifana ne-ethanol, i-ether, i-acetone, njll. Luncibilika kancane ku-ethylene glycol namanzi.

Ukusetshenziswa:

Isetshenziswa kakhulu njenge-monomer yengilazi yemvelo, futhi isetshenziselwa ukwenza amanye amapulasitiki, izembozo, njll.

imvelo

Inombolo ye-CAS 80-62-6

Ifomula yama-molecule C5H8O2

Isisindo sama-molecule 100.12

Inombolo ye-EINECS 201-297-

Iphuzu lokuncibilika -48°C (ngokukhanya)

Iphuzu lokubila 100°C (elikhanyayo)

Ubuningi 0.936g/mL ku-25°C (ngokukhanya)

Ubuningi bomusi 3.5 (vsair)

Umfutho womusi 29mmHg (20°C)

Iphoyinti lokuphazima 50°F

Izimo zokugcina 2-8°C Ukuncibilika 15g/l Ifomu Impuphu noma ikristalu yekristalu

Ulwazi lokuxhumana

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