Shin filastik madugu ne ko insulator?Da farko, bari mu fahimci bambancin da ke tsakanin su biyu: conductor wani abu ne da ke da ƙaramin ƙarfi kuma yana gudanar da wutar lantarki cikin sauƙi.Insulator wani abu ne wanda baya gudanar da wutar lantarki a yanayin al'ada.Siffofin insulators shine cewa tabbataccen cajin da ba daidai ba a cikin kwayoyin suna daure sosai, kuma akwai ƙananan ƙwayoyin da aka caje waɗanda zasu iya motsawa cikin yardar kaina, kuma tsayayyarsu yana da girma.Lokacin da insulator ke haskakawa da haske tare da makamashi mafi girma fiye da tazarar band, electrons a cikin valence band suna sha'awar bandeji, suna barin ramuka a cikin valence band, duka biyun suna iya gudanar da wutar lantarki, al'amarin da aka sani da photoconductivity.Yawancin insulators suna da kaddarorin polarization, don haka insulators wani lokaci ana kiran su dielectrics.Insulators suna rufewa a ƙarƙashin ƙarfin lantarki na yau da kullun.Lokacin da ƙarfin lantarki ya ƙaru zuwa ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun wuta, rushewar dielectric zai faru kuma za a lalata yanayin insulating.
Ana iya raba robobi zuwa kashi biyu: thermosetting da thermoplastic.Ba za a iya sake fasalin tsohon don amfani ba, kuma ana iya sake yin na ƙarshe.Thermoplasticity yana da babban elongation na jiki, gabaɗaya 50% zuwa 500%.Ƙarfin ba ya bambanta gaba ɗaya a layi a cikin elongations daban-daban.
Babban bangaren filastik shine guduro.Resin yana nufin wani fili na polymer wanda ba a haɗa shi da ƙari daban-daban ba.Kalmar resin asalin sunan ta don lipids da dabbobi da tsirrai suka ɓoye, kamar rosin da shellac.
Filastik su ne insulators, amma akwai nau'ikan robobi da yawa.Abubuwan lantarki na robobi daban-daban sun bambanta, kuma ƙarfin dielectric shima ya bambanta.
Lokacin aikawa: Yuli-30-2022