1. Àgwà ọma na nhazi nke Silica gburugburu
1.1 Nkọwa nke Morphological na Crystallinity
(Silica Spherical)
Silica gbara gburugburu na-ezo aka silicon dioxide (SiO Abụọ) irighiri ihe eji akwa akwa akwa, nso-zuru oke okirikiri udi, na-achọpụta ha site na ntụ ntụ silica na-adịghị mma ma ọ bụ angular nke sitere na isi mmalite niile..
Iberibe ndị a nwere ike ịbụ amorphous ma ọ bụ crystalline, ọ bụ ezie na ụdị amorphous na-achịkwa ngwa azụmahịa n'ihi nchekwa kemịkalụ ya dị elu, belata ọkwa okpomọkụ sintering, na enweghị usoro mgbanwe nke nwere ike ime ka microcracking.
Ụdị ọdịdị okirikiri anaghị adịkarị; ọ dị mkpa ka e mezu ya n'ụzọ sịntetịtically site na usoro edoziziri nke na-achịkwa nucleation, uto, na elu ebe ike mbelata.
N'adịghị ka quartz gbajiri agbaji ma ọ bụ silica agbakwunyere, nke na-egosipụta akụkụ ndị siri ike na mgbasa ozi nha obosara, Spherical silica atụmatụ ezigbo elu ebe, nnukwu mbukota ọkpụrụkpụ, na isotropic omume n'okpuru n'ibu nchegbu, na-eme ka ọ dị mma maka ngwa ziri ezi.
Obere nha na-adịgasị iche site na 10s nke nanometers ruo ọtụtụ micrometers, na njikwa siri ike na nkesa nha na-eme ka o kwe omume ịrụ ọrụ nke ọma na sistemu ihe mejupụtara.
1.2 Ụzọ Synthesis edoziziri
Isi usoro maka ịmepụta silica gburugburu bụ usoro Stöber, Atụmatụ sol-gel e mepụtara na 1960 nke gụnyere hydrolysis na condensation nke silicon alkoxides.– Ọtụtụ n'ozuzu tetraethyl orthosilicate (TEOS)– na nhọrọ mmanya na amonia dị ka onye ọkwọ ụgbọ ala.
Site na ịhazigharị paramita dị ka nleba anya mmeghachi omume, oke mmiri na-alkoxide, pH, okpomọkụ larịị, na oge mmeghachi omume, ndị na-eme nchọpụta nwere ike kpachapụ anya mezie iberibe iberibe, monodispersity, na kemịkalụ elu mpaghara.
Usoro a na-amịpụta oke edo, sphere na-abụghị agglomerated nwere ọmarịcha ogbe-na-batch reproducibility, dị mkpa maka mmepụta ọgbara ọhụrụ.
Ụzọ dị iche iche gụnyere ire ọkụ spheroidization, Ebe a na-agbaze iberibe silica na-ekwekọghị ekwekọ ma na-emeziwanye ya ozugbo site na iji plasma na-ekpo ọkụ ma ọ bụ ọgwụgwọ ọkụ., na emulsion dabeere azum nke na-enye ohere encapsulation ma ọ bụ isi-shell structuring.
Maka nrụpụta azụmahịa buru ibu, A na-ejikwa ụzọ mmiri ozuzo dabere na sodium silicate, iji scalability dị ọnụ ahịa na-akwụ ụgwọ ka ị na-echekwa spericity kwesịrị ekwesị na ịdị ọcha.
Nrụ ọrụ ihu n'oge niile ma ọ bụ mgbe njikọ gachara– dị ka ịkụnye na silanes– nwere ike iwebata ndị otu eke (eg, amino, epoxy, ma ọ bụ vinyl) iji kwalite ndakọrịta na polymer matrices ma ọ bụ mee ka o kwe omume maka bioconjugation.
( Silica Spherical)
2. Ngwongwo na-arụ ọrụ na uru dị mma
2.1 Ntughari, Na-ebunye njupụta, na Àgwà Rheological
Otu n'ime uru kachasị dị mkpa nke silica spherical bụ ike ịgbasa ya dị iche na ndị mmekọ angular., ihe onwunwe dị mkpa na nhazi ntụ ntụ, injection ịkpụzi, na mgbakwunye mmepụta ihe.
Enweghị akụkụ dị nkọ na-ebelata ikpochapụ interparticle, ekwe oké, nkwakọ ngwaahịa ọnụ nwere obere oghere, nke enhances n'ibu iguzosi ike n'ezi ihe na thermal conductivity nke ikpeazụ ogige.
Na nkwakọ ngwaahịa dijitalụ, Njupụta nkwakọ ngwaahịa dị elu na-adabara iji belata ọdịnaya resin na encapsulants, na-eme ka nchekwa ọkụ na-ebelata ma belata ọnụọgụ nke mgbasawanye okpomọkụ (CTE).
Ọzọkwa, spherical ibe n'ibe na-enye mma rheological residential Njirimara na nkwusioru na mado, na-ebelata viscosity na igbochi ito nke ọma, nke ana achi achi na-eji ire ụtọ inye na edo mkpuchi na semiconductor rụpụta.
Ọdịbendị a edoziziri dị mkpa n'ime ngwa dịka flip-chip underfill, ebe a na-achọ nhazi ihe dị iche iche na njuputa na-enweghị ihe ọ bụla.
2.2 Mechanical na Thermal Nchekwa
Silica sppherical na-egosi ọmarịcha igwe siri ike yana modul mgbanwe, na-agbakwụnye na nkwado nke polymer matrices na-enweghị na-emepụta nchekasị na-elekwasị anya na nkuku dị nkọ.
Mgbe etinyere n'ime epoxy resins ma ọ bụ silicones, ọ na-eme ka ike sie ike, jiri nguzogide, na akụkụ nchekwa n'okpuru thermal igwe kwụ otu ebe.
Ọnụego uto nke okpomọkụ dị ala (~ 0.5 × 10 ⁻ / K) dabara nnọọ nke ọma nke ihe ndị a na-eji silicon wafer na bọọdụ sekit e biri ebi, na-ebelata nrụgide enweghị oke ọkụ na ngwa microelectronic.
Ọzọkwa, gburugburu silica na-echekwa iguzosi ike n'ezi ihe n'ọkwa okpomọkụ dị elu (ihe dị ka ~ 1000 Celsius C na inert ambiences), na-eme ka ọ dị mma maka ngwa ndị nwere ntụkwasị obi dị elu na mbara igwe na ngwaọrụ eletriki ụgbọ ala.
Ngwakọta nchekwa ọkụ na mkpuchi ọkụ eletrik na-eme ka uru ya dị na akụrụngwa ike yana nkwakọ ngwaahịa LED..
3. Ngwa na Ngwa eletrọnịkị na ụlọ ọrụ Semiconductor
3.1 Ọrụ na nkwakọ ngwaahịa eletrọnịkị na mkpuchi
Silica Spherical bụ ngwaahịa ntọala na ahịa semiconductor, a na-ejikarị eme ihe dị ka ihe ndochi na ogige epoxy ịkpụzi (Ndị EMC) maka mgbawa encapsulation.
Iji ndị dị okirikiri dochie ndị na-ahụ maka ihe na-enweghị isi emeghachila ihe ọhụrụ nkwakọ ngwaahịa site n'ịkwalite ibu ihe njuju ka ukwuu. (> 80 wt%), enwekwukwa ebu eruba, ma wedata eriri na-agagharị n'oge a na-akpụzi mbufe.
Ọganihu a na-akwado miniaturization nke sekit agbakwunyere na uto nke atụmatụ dị elu dị ka sistemụ-na ngwugwu. (SiP) yana nkwakọ ngwaahịa ọkwa wafer na-apụ apụ (FOWLP).
Ebe dị larịị nke akụkụ ahụ gburugburu na-ebelatakwa abrasion nke ezi ọla edo ma ọ bụ ọla kọpa bonding wires, imeziwanye iguzosi ike n'ezi ihe na nloghachi.
Ọzọkwa, ọdịdị isotropic ha na-eme ka nkesa nchekasị ụfọdụ edo edo, ibelata ihe ize ndụ nke delamination na mgbaji n'oge ịnya igwe ọkụ.
3.2 Jiri n'ime usoro nhicha na nhazi nhazi
Na kemịkalụ n'ibu planarization (CMP), gburugburu silica nanoparticles na-arụ ọrụ dị ka ndị nnọchi anya abrasive na slurries emepụtara na-egbutu silicon wafers., anya anya m, na mgbasa ozi oghere nchekwa magnetik.
Ụdị otu ha na nha ha na-eme ka ọnụego mkpochapụ ngwaahịa mgbe niile yana mperi ntụpọ dị n'elu dị ka ncha ma ọ bụ olulu..
Silica okirikiri gbanwetụrụ ihu nwere ike ịhaziri maka nkọwa gburugburu pH na uche, na-eme ka nhọrọ dị n'etiti ihe dị iche iche na mpaghara wafer.
Nke a izi ezi na-enyere aka imepụta ihe owuwu semiconductor multilayered nwere ọnụ ala nanometer, ihe a chọrọ maka lithography ọhụrụ na ngwakọta ngwa.
4. Ngwa Bilie na Cross-Disciplinary
4.1 Biomedical na Diagnostic na-eji
E wezụga ngwaọrụ eletrọnịkị, gburugburu silica nanoparticles na-n'ọrụ nke ukwuu na biomedicine n'ihi na ha biocompatibility, mma nke functionalization, na porosity nwere ike ime.
Ha na-arụ ọrụ dị ka ndị na-eweta ọgwụ, ebe a na-ejupụta ihe ndị na-eweghachi ihe n'ime ụlọ mesoporous wee malite nzaghachi maka mkpali dị ka pH ma ọ bụ enzymes..
Na nchọpụta ọrịa, spheres silica nke nwere fluorescent na-arụ ọrụ dị ka ihe kwụsiri ike, nyocha na-adịghị egbu egbu maka onyonyo na biosensing, ntụpọ quantum na-apụta ìhè karịsịa gburugburu ndu ndu.
Enwere ike jikọta elu ha na ọgwụ mgbochi, peptides, ma ọ bụ DNA maka nchọpụta ezubere iche nke nje nje ma ọ bụ ihe ndị na-ahụ maka ọrịa kansa.
4.2 Mgbakwunye Mmepụta na Ngwakọta Ngwakọta
Na mbipụta 3D, karịsịa na binder jetting na stereolithography, Silica ntụ ntụ na-eme ka njupụta akwa ntụ ntụ na nkwekọrịta oyi akwa, weta mkpebi dị elu na ike n'ibu na porcelains bipụtara.
Dị ka akụkụ na-abawanye na matriks ígwè na polymer matrix composites, ọ enhances rigidity, thermal nlekota oru, na-eyi nguzogide na-enweghị imebi usoro nhazi.
Ọmụmụ nyocha na-enyochakwa iberibe iberibe– ihe owuwu isi nke nwere shei silica n'elu ihe ndọta ma ọ bụ plasmonic cores– maka multifunctional ihe na-achọpụta na ike nchekwa ohere.
Na ngwụcha, gburugburu silica na-egosipụta ka njikwa morphological na micro- na nanoscale nwere ike ịgbanwe ngwaahịa a na-emebu ka ọ bụrụ ihe na-arụ ọrụ dị elu n'ofe teknụzụ ọgbara ọhụrụ dị iche iche.
Site na ichekwa microchips ruo na-aga n'ihu nyocha ahụike, ngwakọta pụrụ iche ya nke anụ ahụ, kemịkalụ, na rheological Njirimara na-aga n'ihu na-akwalite mmepe na nyocha sayensị na injinia.
5. Onye na-enye
TRUNNANO bụ onye na-eweta tungsten disulfide nwere ihe karịrị 12 afọ nke ahụmahụ na nano-ewu ike nchekwa na mmepe nanotechnology. Ọ na-anabata ịkwụ ụgwọ site na kaadị kredit, T/T, West Union na Paypal. Trunnano ga-ebuga ndị ahịa ngwaahịa ahụ na mba ofesi site na FedEx, DHL, site n'ikuku, ma ọ bụ site n'oké osimiri. Ọ bụrụ na ị chọrọ ịmatakwu banyere organic silicon dioxide, biko nweere onwe gị ịkpọtụrụ anyị wee ziga ajụjụ([email protected]).
Tags: Silica Spherical, silicon dioxide, Silica
Akụkọ na foto niile sitere na ịntanetị. Ọ bụrụ na enwere nsogbu nwebiisinka, biko kpọtụrụ anyị n'oge ihichapụ.
Jụọ anyị ajụjụ