Puas yog yas yog tus neeg xyuas pib lossis ib qho insulator?Ua ntej, cia peb nkag siab qhov sib txawv ntawm ob: Tus neeg xyuas pib yog ib yam khoom uas muaj kev tiv thaiv me me thiab ua hluav taws xob yooj yim.Ib qho insulator yog ib yam khoom uas tsis ua hluav taws xob nyob rau hauv ib txwm muaj xwm txheej.Cov yam ntxwv ntawm cov insulators yog qhov zoo thiab qhov tsis zoo hauv cov molecules yog nruj me ntsis khi, thiab muaj tsawg heev them cov khoom uas tuaj yeem txav mus los ntawm kev ywj pheej, thiab lawv cov resistivity loj.Thaum lub insulator yog irradiated nrog lub teeb nrog lub zog ntau dua qhov sib txawv ntawm qhov sib txawv, cov electrons nyob rau hauv lub valence band zoo siab rau cov conduction band, tawm hauv qhov valence band, ob qho tib si uas muaj peev xwm ua tau hluav taws xob, ib qho tshwm sim hu ua photoconductivity.Feem ntau cov insulators muaj cov khoom polarization, yog li cov insulators qee zaum hu ua dielectrics.Insulators yog insulating nyob rau hauv ib txwm voltages.Thaum qhov hluav taws xob nce mus rau ib qho kev txwv, dielectric tawg yuav tshwm sim thiab lub xeev insulating yuav raug puas tsuaj.
Cov yas tuaj yeem muab faib ua ob pawg: thermosetting thiab thermoplastic.Lub qub tsis tuaj yeem hloov kho rau kev siv, thiab tom kawg tuaj yeem rov tsim dua.Thermoplasticity muaj lub cev loj elongation, feem ntau 50% mus rau 500%.Lub zog tsis sib txawv kiag li linearly ntawm txawv elongations.
Lub ntsiab ntawm cov yas yog resin.Resin hais txog cov khoom siv polymer uas tsis tau tov nrog ntau yam khoom ntxiv.Lub sij hawm resin yog Ameslikas lub npe hu ua lipids secreted los ntawm cov tsiaj thiab nroj tsuag, xws li rosin thiab shellac.
Cov yas yog cov insulators, tab sis muaj ntau hom yas.Cov khoom hluav taws xob ntawm ntau yam yas sib txawv, thiab lub zog dielectric kuj txawv.
Post lub sij hawm: Lub Xya hli ntuj-30-2022