Isi Ọrụ Silica (SiO2) na E-Glass

Silica (SiO2) na-arụ ọrụ dị oke mkpa na nke bụ isiE-iko, na-akpụ akwa akwa maka ihe niile dị mma. N'ikwu ya n'ụzọ dị mfe, silica bụ "netwọk mbụ" ma ọ bụ "skeleton" nke E-glass. Enwere ike ekewa ọrụ ya n'ime mpaghara ndị a:

1. Nhazi nke Glass Network Structure (Ọrụ isi)

Nke a bụ ọrụ kachasị mkpa nke silica. Silica bụ oxide na-emepụta iko n'onwe ya. SiO4 tetrahedra ya jikọtara onwe ya site na ijikọ atom oxygen, na-eme ka usoro netwọkụ na-aga n'ihu, siri ike na nke nwere akụkụ atọ.

• Ihe atụ:Nke a dị ka ọkpụkpụ ígwè nke ụlọ a na-arụ. Silica na-enye usoro isi maka nhazi iko dum, ebe ihe ndị ọzọ (dịka calcium oxide, aluminum oxide, boron oxide, wdg) bụ ihe ndị na-ejupụta ma ọ bụ gbanwee ọkpụkpụ a iji dozie arụmọrụ.
• Enweghị ọkpụkpụ silica a, a gaghị enwe ike ịmepụta ihe nwere enyo kwụsiri ike.

2. Nkwanye nke ịrụ ọrụ mkpuchi ọkụ eletrik mara mma

• Igwe ọkụ eletrik dị elu:Silica n'onwe ya nwere obere ngagharị ion dị ala, yana njikọ kemịkalụ (Si-O bond) kwụsiri ike ma sie ike, na-eme ka o sie ike ionize. Netwọk na-aga n'ihu ọ na-etolite na-egbochi mmegharị nke ụgwọ eletrik, na-enye E-glass dị elu nke ukwuu na mgbochi elu.
• Dielectric dị ala na mfu dielectric dị ala:Ngwongwo dielectric nke E-glass kwụsiri ike n'ogo dị elu yana oke okpomọkụ. Nke a bụ n'ihi nrịbama na nkwụsi ike nke nhazi netwọkụ SiO2, nke na-ebute obere ogo nke polarization na ntakịrị ike ọnwụ (ntụgharị gaa na okpomọkụ) na ọkụ eletrik dị elu. Nke a na-eme ka ọ dị mma maka iji dị ka ihe nkwado na kọlụm sekit eletrọnịkị (PCB) na insulators dị elu.

3. N'ịhụ ezi Chemical kwụsie ike

E-glass na-egosiputa ezigbo iguzogide mmiri, acids (ma e wezụga hydrofluoric na phosphoric acid na-ekpo ọkụ), na kemịkalụ.

• Elu inert:Netwọk Si-O-Si nwere nnukwu ọrụ kemịkalụ, ọ naghịkwa eji mmiri ma ọ bụ ion H+ eme ngwa ngwa. Ya mere, nguzogide hydrolysis ya na nguzogide acid dị ezigbo mma. Nke a na-eme ka a mata na ihe ngwakọta nke eriri E-glass gbasiri ike na-arụ ọrụ ha ogologo oge, ọbụlagodi na gburugburu ebe siri ike.

4. Ntụnye aka na Ike Mechanical dị elu

Ọ bụ ezie na ike ikpeazụ nkeiko erina-enwekwa mmetụta dị ukwuu site na ihe ndị dị ka ntụpọ elu na micro-cracks, ike usoro ha na-esite na njikọ siri ike nke Si-O covalent na usoro netwọk nke akụkụ atọ.

• Elu Bond Energy:Ike njikọ nke njikọ Si-O dị oke elu, nke na-eme ka ọkpụkpụ iko n'onwe ya sie ike nke ukwuu, na-enye eriri ahụ ike dị elu na modul na-agbanwe.

5. Na-enye Njirimara Thermal Ideal

• Ọnụego Mgbasawanye Ọkụ dị ala:Silica n'onwe ya nwere ọnụọgụ dị ala nke mgbasawanye thermal. N'ihi na ọ na-eje ozi dị ka skeleton bụ isi, E-glass nwekwara ọnụọgụ mgbasawanye okpomọkụ dị ala. Nke a pụtara na ọ nwere nkwụsi ike nke akụkụ dị mma n'oge mgbanwe okpomọkụ na ọ ga-abụrịrị na ọ ga-ebute oke nrụgide n'ihi mgbasawanye okpomọkụ na nkwekọrịta.
• Ebe Ntụcha Elu:Ebe mgbaze Silica dị oke elu (ihe dịka 1723∘C). Ọ bụ ezie na mgbakwunye nke oxides ndị ọzọ na-agbaze na-ebelata okpomọkụ ikpeazụ nke E-glass, isi SiO2 ya ka na-eme ka iko ahụ nwee ebe nro dị nro zuru oke na nkwụsi ike nke okpomọkụ iji mezuo ihe a chọrọ nke ọtụtụ ngwa.

Na-ahụkarịE-ikoNgwakọta, ọdịnaya silica na-abụkarị 52% -56% (site n'ịdị arọ), na-eme ka ọ bụrụ otu akụkụ oxide kasị ukwuu. Ọ na-akọwa ihe ndị bụ isi nke iko.

Nkewa nke ọrụ n'etiti Oxides na E-Glass:

• SiO2(Silica): Isi ọkpụkpụ; na-enye nkwụsi ike nhazi, mkpuchi eletrik, ịdịte aka kemịkalụ, na ike.
• Al2O3(Alumina): Netwọk inyeaka mbụ na stabilizer; na-abawanye nkwụsi ike nke kemịkalụ, ike n'ibu, ma na-ebelata ọchịchọ ime ihe.
• B2O3(Boron oxide): Flux na ihe mgbanwe akụrụngwa; na-ebelata okpomọkụ nke ukwuu (nchekwa ume) ebe ọ na-eme ka ihe ọkụkụ na ọkụ eletrik dịkwuo mma.
• CaO/MgO(Calcium Oxide/Magnesium Oxide): Flux na stabilizer; na-enyere aka n'ịgbaze ma na-edozi ịdịte aka kemịkalụ na ihe ndị na-emebi emebi.