Asịd Methakrylic (2-Methyl-2-propenoic acid)

Ọdịdị kemịkalụ

Asịd Methacrylic, nke a na-akpọ MAA, bụ ihe mejupụtara organic. Mmiri a na-enweghị agba, viscous bụ carboxylic acid nwere isi ọjọọ. A na-agbaze ya na mmiri ọkụ ma na-agwakọta ya na ọtụtụ ihe mgbaze organic. A na-emepụta Methacrylic acid n'ụlọ ọrụ mmepụta ihe n'ọtụtụ ebe dị ka ihe na-ebute esters ya, ọkachasị methyl methacrylate (MMA) na poly(methyl methacrylate) (PMMA). Methacrylates nwere ọtụtụ ojiji, ọkachasị n'imepụta polymers nwere aha azụmaahịa dịka Lucite na Plexiglas. MAA na-apụta n'ụzọ ebumpụta ụwa na obere ego na mmanụ chamomile nke ndị Rom.

Ngwa

A na-eji Methacrylic acid eme ihe n'imepụta resin methacrylate na plastik. A na-eji ya dị ka Monomer maka nnukwu resin na polymers, njikọ organic. Ọtụtụ n'ime polymers dabere na esters nke acid, dị ka methyl, butyl, ma ọ bụ isobutyl esters. A na-eji Methacrylic acid na methacrylate esters kwadebe ọtụtụ polymers [→ Polyacrylamides na Poly(Acrylic Acids), → Polymethacrylates]. Poly(methyl methacrylate) bụ polima bụ isi na nke a, ọ na-enyekwa plastik siri ike nke mmiri doro anya nke a na-eji na mpempe akwụkwọ na glazing, akara ngosi, ihe ngosi, na panel ọkụ.

Ahụ́ anụ ahụfụlọ akwụkwọ

Kpochapụ Anyammiri mmiri

Klas Ihe Ize Ndụ

8

Ndụ nchekwa

Dịka ahụmịhe anyị si dị, enwere ike ịchekwa ngwaahịa a ruo ọnwa iri na abụọ site na ụbọchị ebuga ya ma ọ bụrụ na edobere ya n'ime akpa mechiri emechi, chebe ya pụọ ​​na ìhè na okpomọkụ ma chekwaa ya na okpomọkụ dị n'etiti 5 - 30°C.

TNjirimara ypical

Ebe agbaze

12-16 Celsius (ọkụ)

Ebe isi mmiri

163°C (ọkụ)

njupụta

1.015 g/mL na 25 °C (ọkụ)

njupụta uzuoku

>3 (vs ikuku)

nrụgide uzuoku

1 mm Hg (20 °C)

ndeksi na-agbanwe agbanwe

n20/D 1.431(ọkụ)

Fp

170°F

okpomọkụ nchekwa.

Debe na +15°C ruo +25°C.