本文關(guān)鍵詞： 木材陶瓷 高溫活化 孔結(jié)構(gòu)分析　出處：《中國(guó)粉體技術(shù)》2017年05期 　論文類(lèi)型：期刊論文

【摘要】：以KOH為活化劑對(duì)以松木粉和液化木材為主要原料制備的木材陶瓷進(jìn)行活化,用低溫氮吸附法和掃描電鏡(SEM)研究活化溫度對(duì)其孔隙結(jié)構(gòu)的影響。結(jié)果表明:木材陶瓷孔隙為典型的H3型結(jié)構(gòu),活化處理能夠大量增加介孔與微孔,孔徑多分布在1.7~2.6 nm,同時(shí)部分保留木材天然結(jié)構(gòu)特征;隨活化溫度的增大,比表面積先增大后減小,孔徑呈現(xiàn)先減小后增大的趨勢(shì),但活化溫度對(duì)微孔的孔徑影響較小;經(jīng)過(guò)1 300℃活化處理60 min,活化木材陶瓷的比表面積可達(dá)1 044.0 m2·g-1。
[Abstract]:Wood ceramics prepared from pine powder and liquefied wood were activated with KOH as activator. The effect of activation temperature on pore structure was studied by low temperature nitrogen adsorption and scanning electron microscopy (SEM). The results show that the pore of wood ceramics is a typical H3 structure, and activation treatment can greatly increase the mesoporous and micropores. With the increase of activation temperature, the specific surface area first increases and then decreases, the pore size decreases first and then increases, but the activation temperature has little effect on the pore size of the micropores. After activation at 1 300 鈩，

本文編號(hào)：1529531