Silicon Composition Txheej Txheem Txheej

Puas yog koj tsis meej pem txog kev txuam nrog ntawm txheej ceramic? Dab tsi yog cov yam ntxwv ntawm silica / polysiloxane / silazane ua cov txheej txheem ntawm cov xim txheej ceramic?

Silica: Nano-silicon dioxide yog cov khoom siv tshuaj lom neeg, feem ntau hu ua cov roj carbon dawb dawb. Vim tias nws yog nanometer ultra-zoo, qhov ntau thiab tsawg yog 1 ~ 100nm, yog li nws muaj ntau yam khoom tshwj xeeb, xws li anti-ultraviolet kho qhov muag, thiab tuaj yeem txhim kho lub hnub qub, lub zog thiab tshuaj lom neeg ntawm lwm cov ntaub ntawv. Kev siv yog dav heev. Nano-silica silica yog cov hmoov tshuaj amorphous dawb, tsis muaj tshuaj lom, tsis muaj ntxhiab, thiab tsis muaj kuab lom. Nws cov microstructure yog kheej kheej, uas qhia pom lub tiaj flocculent thiab net-zoo li quasi-particle qauv. Nws cov lwg me thiab qauv txheej txheem yog SiO2 thiab yog cov tsis muaj kua dej.

Nanomaterials muaj cov teebmeem me me, cov teebmeem ntawm sab nraud thiab cov macroscopic quantum tunneling teebmeem, yog li lawv pom ntau yam khoom tshwj xeeb thiab muaj cov ntawv thov dav dav hauv cov catalysis, lub teeb lim, lub teeb nqus, tshuaj, cov ntaub ntawv sib nqus thiab cov ntaub ntawv tshiab.

Vim tias cov nyhuv me me ntawm nano-silica (SiO₂), qhov cuam tshuam los ntawm sab nrauv, qhov loj me thiab cov macroscopic quantum effect qhov tshwj xeeb, cov khoom siv tshwj xeeb thiab cov khoom siv hluav taws xob, cov khoom siv hluav taws xob siab, tsis xeb tsis kam thiab lub zog ntawm siab kub, High toughness, zoo stability thiab lwm yam lus zoo

Nano silica (SP30) muaj qhov sib txuas ntawm cov qauv peb sab, muaj qhov chaw tshwj xeeb hauv cheeb tsam, qhia tau tias muaj kev ua haujlwm zoo, tuaj yeem tsim ua lub network txheej thaum cov xim txheej tau qhuav, thiab tib lub sijhawm nce lub zog thiab du ntawm txheej, thiab txhim kho cov xim Tshem Tawm Tshem Tawm, tuaj yeem khaws cov xim tsis muaj xim kom tsis txhob ploj mus ntev. Kev tsim kho vaj tse sab hauv thiab sab nrauv txheej, yog tias nano-silica (SP30) ntxiv, qhov ua rau nws qhib tau tuaj yeem ua kom zoo dua qub. Cov txheej yuav tsis ua kom zoo, muaj thixotropy, tiv thaiv tsis taus, thiab muaj kev ua haujlwm zoo, tshwj xeeb tshaj yog cov khoom ua kom tsis zoo. , Muaj kev tu tus kheej tau zoo thiab ua tau nplaum yooj yim. Nano SiO2 kuj tseem siv tau nrog cov organic xim kom tau cov duab pleev rau yoo duab, MPJ Peeters li al. synthesized ua tiav pob tshab kub-resistant txheej muaj nano-silica (tib yam li VK-SP30) los ntawm cov huab-gel cov qauv. Schmidt li al. hluavtaws tsim ib txheej tuab heev uas muaj nano-SiO2, uas tiv taus kub, thiab tsis muaj kev tawg nyob ntawm 500 ° C. Fayna Mamme ri li al. hluavtaws PMMA-SiO2 nano-txheej. Tseem ceeb txhim kho lub elasticity thiab lub zog ntawm lo.

Nano-silica yog physiologically inert thiab heev nqus. Nws yog feem ntau siv los ua tus cab kuj hauv kev npaj cov kab mob. Thaum nano-SiO2 yog siv los ua tus neeg nqa khoom, nws tuaj yeem nqus cov tshuaj tiv thaiv kab mob mus cuag lub hom phiaj kom tsis muaj menyuam thiab tua kab mob. Nws tau tshaj tawm tias nws tuaj yeem siv rau hauv cov txee hauv lub thawv txias, khoos phis tawj twj, thiab lwm yam Kev Tsim Khoom.

Polysilicon (silicon) azane: resin, tom qab kho lub cob ua cov qauv txuas ua peb sab ntu, muab cov khoom zoo cov khoom siv zog, lub zog tuaj yeem siab txog 9H.

Silazane polymer, feem ntau siv los npaj cov khoom siv ceramic

Polysilazane rau kev tiv thaiv kub kub hlau

Lub siab kub corrosion thiab oxidation tsis kam ntawm cov hlau yeej ib txwm yog cov ncauj lus tseem ceeb hauv kev lag luam thiab kev tshawb fawb ntawm lub voj voog. Lub SiO2 lossis SiCN tsim los ntawm kev hloov pauv ntawm polysilazane tau zoo heev corrosion tsis kam. Nyob rau tib lub sijhawm, vim qhov polarity ntawm Si-N hauv nws cov qauv, nws yooj yim los ua ke nrog cov hlau txheej, yog li nws yog qhov zoo-kub tiv thaiv corrosion txheej khoom. Tam sim no, muaj cov lag luam kub kub tiv taus cov ntaub ntawv siv polysilazane ua cov khoom lag luam tseem ceeb, uas yog siv rau hauv cov yeeb nkab tso pa, pistons, hloov pauv kub, thiab lwm yam ntawm lub tsheb thiab cov tsheb thauj khoom.

Cim npe nrov: silicon muaj pes tsawg leeg ceramic txheej, Nyiv, chaw tsim tshuaj paus, lwm tus neeg, Hoobkas, customized, hom, dawb coj mus kuaj, ua nyob rau Nyiajpoom Teb