He conductor a insulator paha ka plastic?

He conductor a insulator paha ka plastic?ʻO ka mea mua, e hoʻomaopopo kākou i ka ʻokoʻa ma waena o nā mea ʻelua: ʻO ka conductor kahi mea i loaʻa kahi pale liʻiliʻi a hoʻokele maʻalahi i ka uila.ʻO ka insulator kahi mea i hoʻolele ʻole i ka uila ma lalo o nā kūlana maʻamau.ʻO nā hiʻohiʻona o nā insulators ʻo ia ka paʻa ʻana o nā uku maikaʻi a maikaʻi ʻole i loko o nā molekala, a he kakaikahi loa nā mea i hoʻopaʻa ʻia e hiki ke neʻe manuahi, a nui ko lākou resistivity.Ke hoʻomālamalama ʻia kahi insulator me ka māmā me ka ikehu ʻoi aku ka nui ma mua o ke kaʻe o ka puʻupuʻu, ʻoliʻoli nā electrons i loko o ka hui valence i ke kāʻei conduction, e waiho ana i nā lua i loko o ke kaula valence, hiki iā ia mau mea ʻelua ke alakaʻi i ka uila, kahi mea i ʻike ʻia he photoconductivity.Loaʻa i ka hapa nui o nā insulators nā waiwai polarization, no laila ua kapa ʻia nā insulators i kekahi manawa he dielectrics.Hoʻopili nā insulators ma lalo o nā voltage maʻamau.Ke piʻi ka voltage i kekahi palena, e hoʻopau ʻia ka dielectric breakdown a e luku ʻia ke kūlana insulating.

Hiki ke hoʻokaʻawale ʻia nā plastik i ʻelua mau ʻāpana: thermosetting a me thermoplastic.ʻAʻole hiki ke hana hou ʻia ka mea mua no ka hoʻohana ʻana, a hiki ke hana hou ʻia ka mea hope.Loaʻa i ka Thermoplasticity kahi elongation kino nui, maʻamau 50% a 500%.ʻAʻole ʻokoʻa loa ka ikaika ma nā elongation like ʻole.
ʻO ka mea nui o ka plastic he resin.ʻO ka Resin kahi hui polymer ʻaʻole i hui pū ʻia me nā mea hoʻohui like ʻole.Ua kapa mua ʻia ka huaʻōlelo resin no nā lipid i huna ʻia e nā holoholona a me nā mea kanu, e like me ka rosin a me ka shellac.
He insulators ka plastik, akā he nui nā ʻano plastik.ʻOkoʻa nā waiwai uila o nā plastik like ʻole, a ʻokoʻa hoʻi ka ikaika dielectric.