释放负离子多微孔竹炭的制备与性能  

PREPARATION AND PROPERTIES OF MICROPOROUS BAMBOO CHARCOAL RELEASING NEGATIVE AIR IONS

作　　者：曲娴[1] 王欣[2] 狄友波[1,2] 李青山[2] 

机构地区：[1]品德实业（太原）有限公司,山西太原030031 [2]燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004

出　　处：《炭素》2011年第1期44-47,共4页Carbon

摘　　要：研究了高比表面积竹炭的高温煅烧制备法，用新型纳米球磨机将竹炭研磨成不同粒度的粉末并应用于印花布。SEM结果显示研磨时间越长，竹炭粉平均粒径越小，5h以上的研磨可使平均粒径降至100nm以下。由于团聚效应显著，研磨1h和5h的两种样品，其比表面积和孔结构检测未出现明显的不同。但是通过选择合适的分散剂，在印花布负离子测试中发现负离子释放量与竹炭粒径和含量有关，粒径越小、竹炭含量越高，其负离子释放量也越大，表明竹炭是优良的负离子释放材料。In present work, bamboo charcoal was grinded into microporous powders with different particle size by using a new nano ball- milling machine, and applied to printed cloth in order to build a negative air ion （NAI） rich environment. SEM results show the average diameter of the particles（ A） grinded for 5 hours is smaller than 100 nm. Another sample（B）was grinded for only 1 hour. The specific surface areas and pore structures of these samples make no noticeable difference due to the aggregation Of the particles. The aggre- gation effect was removed by using a special dispersant. Different pore size is associated with its NAI releas~ ing function. Sample B with a smaller average diameter gives higher NAI concentration（released by printed cloth）. NAI concentration is also associated with the amount of bamboo charcoal applied to printed cloth. A higher bamboo charcoal concentration gives a better measured NAI concentration result. Bamboo charcoal is an excellent NAI releasing material.

关 键 词：竹炭 负离子 吸附等温线 纳米球磨 

分 类 号：TB383[一般工业技术—材料科学与工程]