Plastic ọ bụ onye nduzi ma ọ bụ ihe mkpuchi?Nke mbụ, ka anyị ghọta ọdịiche dị n'etiti ha abụọ: Onye nduzi bụ ihe nwere obere ihe mgbochi ma na-eduzi ọkụ eletrik ngwa ngwa.Ihe mkpuchi bụ ihe na-adịghị eduzi ọkụ eletrik n'okpuru ọnọdụ nkịtị.Njirimara nke insulators bụ na ebubo ndị dị mma na nke na-adịghị mma na ụmụ irighiri ihe ndị ahụ na-ejikọta ọnụ, na e nwere ihe ole na ole ebubo nke nwere ike ịkwaga n'efu, na nkwụsị ha dị ukwuu.Mgbe a na-eji ọkụ na-agbapụta ihe mkpuchi na ike karịa ọdịiche nke band, electrons na valence band na-enwe mmasị na band conduction, na-ahapụ oghere na valence band, nke abụọ nwere ike iduzi ọkụ eletrik, ihe a maara dị ka photoconductivity.Ọtụtụ insulators nwere ihe ndị na-emepụta ihe, yabụ, a na-akpọ ndị insulators mgbe ụfọdụ dielectrics.Insulators na-ekpuchi n'okpuru voltaji nkịtị.Mgbe voltaji na-abawanye na njedebe ụfọdụ, mmebi dielectric ga-eme na steeti mkpuchi ahụ ga-ebibi.
Enwere ike kewaa plastik ụzọ abụọ: thermosetting na thermoplastic.Enweghị ike ịmegharị nke mbụ maka ojiji, enwere ike ịmepụta nke ikpeazụ.Thermoplasticity nwere nnukwu elongation anụ ahụ, n'ozuzu 50% ruo 500%.Ike adịghị iche kpamkpam linearly dị iche iche elongations.
Isi ihe dị na plastik bụ resin.Resin na-ezo aka na ngwakọta polymer nke agwakọtabeghị ya na ihe mgbakwunye dị iche iche.Aha mbụ resin bụ maka lipids nke anụmanụ na osisi zoro ezo, dị ka rosin na shellac.
Plastics bụ ihe mkpuchi, mana enwere ọtụtụ ụdị plastik.Njirimara eletrik nke plastik dị iche iche dị iche iche, ike dielectric dịkwa iche.
Oge nzipu: Jul-30-2022