本文關(guān)鍵詞： 殼聚糖/SiO復(fù)合涂層 原位水熱合成 b-軸取向MFI型分子篩晶種層　出處：《材料導(dǎo)報》2016年S1期 　論文類型：期刊論文

【摘要】：發(fā)展了一種利用原位水熱法,通過采用殼聚糖/SiO_2復(fù)合涂層對載體表面修飾和改性,實(shí)現(xiàn)在載體表面獲得密度高且均一b-軸取向MFI型分子篩晶粒層的方法。考察了復(fù)合涂層中殼聚糖/SiO2質(zhì)量比、分子篩合成液配比及晶化時間對取向晶種層的影響規(guī)律。結(jié)果表明,殼聚糖與SiO_2質(zhì)量比為0.15、分子篩合成液配比為1TPAOH∶0.2TEOS∶90H2O、170℃反應(yīng)3h時,在玻璃載體表面得到連續(xù)、致密且高度b-軸取向的MFI型分子篩晶種層。
[Abstract]:An in-situ hydrothermal method was developed to modify and modify the surface of the carrier by using chitosan / SiOs-2 composite coating. The method of obtaining MFI molecular sieve grain layer with high density and uniform b-axis orientation on the surface of the carrier was achieved. The mass ratio of chitosan / Sio _ 2 in the composite coating was investigated. The effect of molecular sieve synthesis liquid ratio and crystallization time on the oriented seed layer was studied. The results showed that the mass ratio of chitosan to SiO_2 was 0. 15. When the molar ratio of molecular sieve synthetic liquid is 1 TPAOH: 0.2TEOS: 90 H _ 2O reaction at 170 鈩，

本文編號：1482080