Methyl methacrylate (Methyl ester ntawm 2-methyl-2-propenoic acid)
| Tshuaj lom neegncov qauv | Methyl 2-methyl-2-propenoate muaj ntxhiab tsw qab thiab nkag mus tob. Hauv lwm daim ntawv tshaj tawm, cov tshuaj no tau tshaj tawm tias muaj ntxhiab tsw qab thiab txiv hmab txiv ntoo.,Methyl methacrylate yog ib qho organic compound nrog cov mis C H2=C(CH3)COOCH3Cov kua tsis muaj xim no, methyl ester ntawm methacrylic acid (MAA) yog ib qho monomer tsim tawm ntawm qhov loj rau kev tsim cov poly (methyl methacrylate) (PMMA). | |
| Cov ntawv thov | Methyl methacrylatec siv rau hauv cov pob txha acrylic siv rau hauv kev phais pob txha; hauv kev tsim cov acrylic polymers, polymethylmethacrylate thiab copolymers siv rau hauv cov txheej acrylic nto; hauv kev tsim cov emulsion polymers; hauv kev hloov kho cov unsaturated polyester resins; hauv kev tsim cov methacrylate siab dua, acrylic fibers, acrylic zaj duab xis, inks, hluav taws xob-polymerized impregnants rau ntoo, thiab cov kua nplaum thiab cov binders raws li cov kuab tshuaj; ua tus hloov pauv ntawm PVC; hauv cov tshuaj tsuag nplaum; hauv cov tshuaj bandage solvents tsis khaus; hauv kev siv tshuab kho hniav ua cov khoom siv ceramic lossis cement; rau txheej corneal contact lens; hauv cov iav intraocular, cov rau tes dag, thiab cov khoom pab hnov lus; ua ib qho monomer rau polymethaerylate resins; hauv impregnation ntawm cov pob zeb. | |
| Lub cevform | Cov kua ntshiab, tsis muaj xim nrog rau ntxhiab tsw qab, ntxhiab txiv hmab txiv ntoo | |
| Chav Kawm Txog Kev Phom Sij | 3 | |
| Lub neej txee | Raws li peb qhov kev paub dhau los, cov khoom tuaj yeem khaws cia tau 12 lub hlis txij li hnub xa khoom yog tias khaws cia rau hauv cov thawv kaw ruaj ruaj, tiv thaiv kom tsis txhob muaj lub teeb thiab cua sov thiab khaws cia rau qhov kub ntawm 5 - 30°C | |
| Tcov yam ntxwv ib txwm muaj
| Qhov kub yaj | -48 ° C (lit.) |
| Kub taw tes | 100 ° C (lit.) | |
| qhov ceev | 0.936 g/mL ntawm 25 °C (lit.) | |
| qhov ceev ntawm cov pa dej | 3.5 (piv rau huab cua) | |
| siab ntawm cov pa dej | 29 hli Hg ( 20 °C) | |
| refractive index | n20/D 1.414(lit.) | |
| cia kub. | 2-8°C | |
| Fp | 50 °F | |
Kev Nyab Xeeb
Thaum siv cov khoom no, thov ua raws li cov lus qhia thiab cov ntaub ntawv muab rau hauv daim ntawv qhia kev nyab xeeb thiab ua raws li kev tiv thaiv thiab kev tu cev huv si hauv chaw ua haujlwm kom txaus rau kev siv cov tshuaj lom neeg.
Lus Cim
Cov ntaub ntawv muaj nyob rau hauv tsab ntawv tshaj tawm no yog raws li peb txoj kev paub thiab kev paub tam sim no. Vim muaj ntau yam uas yuav cuam tshuam rau kev ua thiab kev siv peb cov khoom, cov ntaub ntawv no tsis pab cov neeg ua haujlwm los ntawm kev ua lawv tus kheej txoj kev tshawb nrhiav thiab kev sim; cov ntaub ntawv no tsis txhais tau tias muaj kev lees paub txog qee yam khoom, lossis qhov tsim nyog ntawm cov khoom rau lub hom phiaj tshwj xeeb. Txhua cov lus piav qhia, cov duab kos, cov duab, cov ntaub ntawv, cov feem pua, qhov hnyav, thiab lwm yam uas tau muab rau hauv no yuav hloov pauv yam tsis muaj cov ntaub ntawv ua ntej thiab tsis suav tias yog qhov zoo ntawm cov khoom raws li daim ntawv cog lus. Qhov zoo ntawm cov khoom raws li daim ntawv cog lus tsuas yog los ntawm cov lus hais hauv cov lus qhia tshwj xeeb ntawm cov khoom. Nws yog lub luag haujlwm ntawm tus neeg tau txais peb cov khoom kom ntseeg tau tias txhua txoj cai thiab cov kev cai lij choj thiab kev cai lij choj uas twb muaj lawm raug ua raws li.
