Polymethyl methacrylate muaj cov khoom siv hluav taws xob tsawg dua li cov yas tsis muaj polar xws li polyolefins thiab polystyrene vim yog pawg polar methyl ester nyob rau sab ntawm cov saw tseem ceeb.Lub polarity ntawm methyl ester pawg tsis loj heev, thiab cov polymethyl methacrylate tseem muaj cov dielectric zoo thiab hluav taws xob insulating zog.Nws yog ib qho tsim nyog sau cia tias polymethyl methacrylate thiab txawm tias tag nrho cov yas acrylic muaj qhov ua haujlwm zoo heev.Nyob rau hauv qhov kev txiav txim ntawm arc, nto tsis tsim carbonized conductive paths thiab arc khiav phenomena.20 ° C yog qhov hloov pauv thib ob, sib haum rau qhov kub thiab txias ntawm cov pab pawg methyl ester pib txav mus.Hauv qab 20 ° C, sab methyl ester pawg nyob rau hauv lub xeev khov, thiab cov khoom hluav taws xob ntawm cov khoom yog nce siab tshaj 20 ° C.
Polymethyl methacrylate muaj cov khoom siv dav dav zoo thiab yog nyob rau hauv pem hauv ntej ntawm cov khoom siv dav dav.Lub zog tensile, tensile lub zog, compression thiab lwm yam muaj zog yog siab dua li ntawm polyolefins, thiab siab dua li ntawm polystyrene thiab polyvinyl chloride.Qhov cuam tshuam toughness tsis zoo.Tab sis kuj me ntsis zoo dua li polystyrene.Cov cam khwb cia polymethyl methacrylate daim ntawv (xws li aerospace plexiglass sheet) muaj cov khoom siv ntau dua xws li ncab, khoov thiab compression, thiab tuaj yeem ncav cuag qib ntawm engineering plastics xws li polyamide thiab polycarbonate.
Post lub sij hawm: Aug-01-2012