Bayani
Siffofin fasaha
Gabatarwar samfur
Boehmite, wanda kuma aka sani da monohydrate alumina, shine hydroxide oxide na aluminum tare da dabarar sinadarai - AlOOH. Yana da matsakaicin samfur na bushewar aluminum hydroxide (ATH) a ƙarƙashin ƙayyadaddun yanayi kuma muhimmin maƙasudin samuwar alumina mai girma - ({3}} Al ₂ O3) ta hanyar calcination.
Sigar samfur
| Abu | Naúrar | Mahimman ƙima |
| Bayyanar | / | farin foda |
| Tsafta | % | Yafi ko daidaita 99 |
| D50 | μm | 0.4 |
| BET | m2/g | 120 |
| Girman Pore | cm3/g | 0.7 |
| Diamita na Bore | nm | 23.7 |
| Ph | / | 7-9 |
| Fe2O3 | % | ＜0.01 |
| Na2O | % | ＜0.05 |
| SiO2 | ppm | ＜0.02 |
| CaO | ppm | ＜0.03 |
Yanayin jiki: m foda
Launi: Fari
Dandano: Mara wari
Siffofin Samfur
An siffanta shi da takamaiman yanki mai tsayi (yawanci har zuwa 100{4}}300m ²/g ko ma sama). Wannan yana ba da adadi mai yawa na wuraren aiki na saman, waɗanda ke da mahimmanci don gyare-gyaren saman da mu'amalar fuska. Hakanan ana nuna shi tare da babban aiki na saman. Filayen yana da wadatar ƙungiyoyin hydroxyl ({10}} OH), yana sauƙaƙa yin gyare-gyaren ƙasa (kamar silanization), wanda ke ba da damar tarwatsa shi da kyau cikin tsarin halitta ko haɗe shi da polymers. Yana da kyawawan kaddarorin inji. Tasirin ciko na nanoparticles na iya haɓaka ƙarfi sosai, ƙarfi, da taurin kayan haɗin gwiwa. Yana da halaye na thermal na musamman. Siffofin bazuwar zafin jiki na boehmite kusan 450{12}}digiri 500, ingantaccen ingantaccen harshen wuta ne mara halogen. Hakanan yana da kwanciyar hankali na sinadarai, juriya na lalata, rufi, mara guba da mara lahani.
Aikace-aikacen samfur
An yi amfani da matsayin core shafi abu ga yumbu mai rufi membranes (CCS), da boehmite shafi decomposes da kuma sha zafi a high yanayin zafi, da kuma canza zuwa wani porous alumina Layer, wanda zai iya ƙwarai inganta thermal kwanciyar hankali na SEPARATOR (hana thermal shrinkage), hana tabbatacce da korau electrode lamba gajeriyar da'irori, da muhimmanci inganta aminci da baturi. Ana iya shafa shi zuwa manyan robobi na injiniya na ƙarshe (kamar PA, PBT), roba na musamman, rufin wuta, da ƙwararrun electrolytes. Saboda tasirinsa na nano, yana da mafi girman ƙarfin jinkirin harshen wuta fiye da boehmite na yau da kullun, tare da ƙarancin ƙari da ƙarancin tasiri akan abubuwan injiniyoyi na kayan. Hakanan ana amfani dashi ga masu haɓakawa da tallafi masu haɓakawa, babban yanki na musamman yana ba da damar ɓarke ayyukan aiki na ƙarfe masu tamani (kamar Pt, Pd), wanda ke haifar da ingantattun abubuwan haɓakawa. Yana da babban ingancin precursor{5} don shirya nano alumina ( - Al2 O3, {{0} Al2 O3). Nano alumina da aka samu bayan calcination za a iya amfani da shi a cikin filaye daban-daban, kamar su goge goge, ci-gaba tukwane, tukwane na gaskiya, da sauransu.
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