| 聚丙烯酰胺/膨润土复合水凝胶的结构及粘弹性 |
| |
| 引用本文： | 卢其明,罗志刚,刘安勋,廖宗文.聚丙烯酰胺/膨润土复合水凝胶的结构及粘弹性[J].高分子材料科学与工程,2005,21(6):158-161. |
| |
| 作者姓名： | 卢其明 罗志刚 刘安勋 廖宗文 |
| |
| 作者单位： | 1. 华南农业大学,理学院,广东,广州,510640
2. 华南农业大学,新肥料资源研究室,广东,广州,510640 |
| |
| 基金项目： | 国家高技术研究发展计划（2001AA246023）、广东省自然科学基金资助项目（021014）和华南农业大学新学科扶持基金项目（K03209） |
| |
| 摘 要： | 用丙烯酰胺和膨润土制备聚丙烯酰胺/膨润土（PAM/Bent）复合材料，再用差热分析（DTA）、扫描电子显微镜（SEM）、动态粘弹谱（DMA）对PAM/Bent复合水凝胶进行表征.结果显示，PAM与膨润土之间有强的相互作用;PAM/Bent复合水凝胶有完善的网络结构和高的强度。
|
| 关 键 词： | 复合材料 聚丙烯酰胺 膨润土 水凝胶 粘弹性 |
| 文章编号： | 1000-7555（2005）06-0158-04 |
| 收稿时间： | 2004-09-28 |
| 修稿时间： | 2004年9月28日 |
STRUCTURE AND VISCOELASTICITY OF POLYACRYLAMIDE/BENTONITE COMPOSITE HYDROGELS |
| |
| LU Qi-ming,LUO Zhi-gang,LIU An-xun,LIAO Zong-wen.STRUCTURE AND VISCOELASTICITY OF POLYACRYLAMIDE/BENTONITE COMPOSITE HYDROGELS[J].Polymer Materials Science & Engineering,2005,21(6):158-161. |
| |
| Authors: | LU Qi-ming LUO Zhi-gang LIU An-xun LIAO Zong-wen |
| |
| Affiliation: | 1. Department of Sciences, South China Agricultural University,Guangzhou 510640, China; 2. New Fertilizer Resources Lab. , South China Agricultural University, Guangzhou 510640, China |
| |
| Abstract: | High water-absorbent composites comprising acrylamide and bentonite were prepared in the presence of a crosslinking agent.The composite hydrogels were obtained by immersing the composites in water.The structure and viscoelasticity of the hydrogels were characterized by DTA(differential thermal analysis),ESEM(environment scanning electron microscopy) and DMA(dynamic mechanical analysis).The results show that there are strong interaction between polyacrylamide and bentonite,and the composite hydrogels appear integrated net structure.Comparing with polyacrylamide hydrogels,the complex modulus of composite hydrogel is quite high,whose storage modulus is obviously higher than the loss modulus and has broad linear range with the change of angle frequency. |
| |
| Keywords: | composite polyacrylamide bentonite hydrogel viscoelasticity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
