MMA (Methyl Methacrylate): Key Monomer yeHigh-Performance Polymers

Methyl methacrylate (MMA) chinhu chakakosha chemakemikari eorganic chine fomura yemakemikari C₅H₈O₂. Imvura isina ruvara, inoonekera ine hwema hwakasiyana uye inoshandiswa zvakanyanya mukugadzira maresini ekugadzira, mapurasitiki, machira, manamati, uye zvinhu zve optical. Kushandiswa kukuru kweMMA imonomer yekugadzira polymethyl methacrylate (PMMA), purasitiki yeinjiniya inoshanda zvakanyanya inozivikanwa nekujeka kwayo kwakanaka, kuramba mamiriro ekunze, uye hunhu hwemakanika. PMMA inowanzo kunzi "acrylic" kana "plexiglass."

Taura nesu

Minda mikuru yekushandisa

Muindasitiri yepurasitiki, PMMA inoshandiswa zvakanyanya kugadzira machira akajeka, machubhu, uye zvishandiso zvemaziso nekuda kwehunhu hwayo hwepamusoro hwemaziso. Inopa kujeka kwakanyanya, indekisi yakaderera yekutarisa, uye kuramba kweUV kwakanaka, zvichiita kuti ive yakakodzera kushandiswa senge zviratidzo, zvigadziko zvekuratidzira, mwenje yemotokari kumashure, uye macanopies endege. Pamusoro pezvo, kuramba kwemakemikari kwakanaka kwePMMA uye simba remakanika zvinoita kuti ive yakakodzera michina yekugadzira chikafu uye zvishandiso zvekurapa.

Muchikamu chekuputira nekunamira, MMA inoshandiswa kugadzira maresini akasiyana-siyana anoshanda zvakanyanya. Maresini aya anoratidza kunamira kwakanaka, kuramba mamiriro ekunze, uye kuramba makemikari, zvichiita kuti ashandiswe zvakanyanya mukugadzira machira, kugadzira machira emotokari, uye kugadzira michina yemagetsi. Masisitimu eMMA, anozivikanwa nekukwanisa kwawo kupora nekukurumidza uye kusimba kwekubatanidza, anoshandiswa zvakanyanya pakubatanidza huni, simbi, uye zvinhu zvepurasitiki.

Muchikamu chezvinhu zve optical, MMA chinhu chakakosha pakugadzira fibers nemalenzi e optical. Hunhu hwayo hwepamusoro hwe optical uye kuramba kwayo mamiriro ekunze zvinoita kuti ive chinhu chakanakira mashandisirwo e optical, kusanganisira zvishandiso zve fiber optic communication uye ma lenzi e optical anoshanda zvakanyanya. Pamusoro pezvo, MMA inoshandiswa mukugadzira light guides uye optical sensors.

Muindasitiri yekugadzira zvinhu zvakasiyana-siyana, MMA inoshandiswa kugadzira zvinhu zvakasiyana-siyana zvakagadzirwa ne methyl methacrylate resin. Zvinhu izvi zvine simba guru, density yakaderera, uye ngura yakasimba, zvichiita kuti zvishandiswe zvakanyanya mukushandisa michina yemuchadenga, yemotokari, uye yemitambo. Semuenzaniso, zvinhu zvakasiyana-siyana zvakagadzirwa ne MMA zvinoshandiswa mumapapiro endege, mumotokari, uye mumakirabhu egorofu.

Magadzirirwo

Zita rechigadzirwa		Methyl Methacrylate (MMA)
MF		C₅H₈O₂
Chitarisiko		Mvura isina ruvara yakajeka
Kurema kweMorekuru		100.12
Nhamba yeCAS		80-62-6
Kodhi yeHS		29161400
EINECS Kwete		201-297-1
Kushandiswa		Kugadzira plexiglass, machira ekuputira

Pepa Rekudzora Hunhu

Zita rechigadzirwa	METHYL METHACRYLATE (MMA)
HUNHU	ZVINHU ZVAKANYANYA	Mhedzisiro yekuongorora
Chitarisiko	Mvura Isina Ruvara Inoonekera	Mvura Isina Ruvara Inoonekera
Kuchena, %	99.8% zvishoma	99.92%
Ruvara (Hazen)	≤ 10	5
Mvura Yakawanda/mg/kg	≤ 400	101
Chiyero cheAcid (mg/kg)	≤50	10
Kuwanda (20℃)/(g/m3)	0.942-0.944	0.94%
CHINHU	ZVINOTAURWA	Mhedzisiro yeKuyedza
KUCHENA(M/M),PCT ≤	100%	99.96%
MWONYO, MG/KG≤	600	37
ASIDHI SE METHACRY ASIDHI	100	20
Ruvara (hazen), 10 MAX	10	5.00%
Kuwanda (20) (g/cm3)	0.942-0.946	0.944

Muchidimbu

Nekufambira mberi kuri kuramba kuchiita tekinoroji, minda yekushandisa yeMMA iri kuramba ichikura. Semuenzaniso, muindasitiri yekudhinda ye3D, MMA inoshandiswa kugadzira zvinhu zvekudhinda zve3D zvinoshanda zvakanyanya. Mumunda wezvekurapa, MMA inoshandiswa kugadzira zvinhu zvekurapa zvinoora uye mascaffolds ekugadzira matishu. Kushanda kwakawanda uye kushanda kwepamusoro kweMMA kunoita kuti ive chinhu chakakosha muindasitiri yemazuva ano, zvichipa rutsigiro rwakasimba mukusimudzira zvikamu zvakawanda.