| 粉煤灰涂层材料的控释水特性 |
| |
| 引用本文： | 张增志,赵瑾,张利梅,张际飞. 粉煤灰涂层材料的控释水特性[J]. 材料研究学报, 2007, 21(3): 295-299 |
| |
| 作者姓名： | 张增志 赵瑾 张利梅 张际飞 |
| |
| 作者单位： | 中国矿业大学(北京)生态功能材料研究所,北京,100083;中国矿业大学(北京)生态功能材料研究所,北京,100083;中国矿业大学(北京)生态功能材料研究所,北京,100083;中国矿业大学(北京)生态功能材料研究所,北京,100083 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划) , 教育部科学技术研究重点项目 , 北京市产学研共建基金 |
| |
| 摘 要： | 提出了一种新型涂层导水纤维的制备方法.用粉煤灰和有机溶剂溶解的EVA混合做涂层材料,选用与膜材成分相同的聚乙烯纤维作为预涂层纤维基体.用比表面积分析仪表征粉煤灰的孔径分布,在环境扫描电子显微镜下观察纤维表面微观真实形貌,用快速水分测定仪测试纤维在不同温度下的连续失水情况.改变土壤的相对含水量,测定了优选配比涂层纤维的失水.结果表明:EVA含量最少的纤维涂层渗水效果最好,涂层纤维的保水功能是由于粉煤灰的多孔产生了毛细孔凝聚现象,该涂层导水纤维对温度以及土壤湿度都具有自调节功能.
|
| 关 键 词： | 复合材料 纤维涂层 粉煤灰 孔径分布 自调节 |
| 文章编号： | 1005-3093（2007）03-0295-05 |
| 修稿时间： | 2006-08-262007-01-22 |
Water-releasing characteristics of fly ash coating material |
| |
| ZHANG Zengzhi,ZHAO Jin,ZHANG Limei,ZHANG Jifei. Water-releasing characteristics of fly ash coating material[J]. Chinese Journal of Materials Research, 2007, 21(3): 295-299 |
| |
| Authors: | ZHANG Zengzhi ZHAO Jin ZHANG Limei ZHANG Jifei |
| |
| Affiliation: | Research Institute of Ecological and Functional Material, China University of Mining and Technology, Beijing 100083 |
| |
| Abstract: | A new water-release fiber consist of PE fiber and the coating materials was prepared. The coating materials of the fiber are fly ash and EVA solved by organic solvent, fly ash was analyzed by BET surface area measurement.The weightlessness ratios of the fibers were determined by changing the soil water content. The result shows that the best water-release characteristic of the fiber is that with the least proportion of EVA. The holding water function of the fiber is due to the capillary agglomerate phenomenon caused by the porous structures of the fly ash, which adjusts its water-release ratio when the temperature and the soil water content changed. |
| |
| Keywords: | composite fiber coating fly ash pore size distribution self-accommodation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
