| 苯乙烯改性金属微粉及微波电磁参数研究 |
| |
| 引用本文： | 谢建良,梁波浪,邓龙江.苯乙烯改性金属微粉及微波电磁参数研究[J].电子科技大学学报(社会科学版),2008(5). |
| |
| 作者姓名： | 谢建良 梁波浪 邓龙江 |
| |
| 作者单位： | 电子科技大学电子薄膜与集成器件国家重点实验室; |
| |
| 基金项目： | 部级预研基金(5141001020DZ02) |
| |
| 摘 要： | 在金属磁性微粉表面通过偶联剂(A-151)引发苯乙烯(St)聚合,研究了反应温度、偶联剂用量、引发剂用量及反应时间对接枝率的影响。用SEM、RA-IR等方法对磁性微粉表面聚苯乙烯粒子膜的形貌、结构进行表征,并对改性前后磁性微粉/聚苯乙烯复合材料的复磁导率和复介电常数等微波电磁参数进行了测试。结果表明:苯乙烯通过偶联剂(A-151)以化学键的方式接枝在磁性微粉表面,形成一层高电阻率的有机薄膜,在复磁导率变化不大的情况下,有效降低了磁性微粉的复介电常数。
|
| 关 键 词： | 接枝率 金属磁性微粉 介电常数 聚苯乙烯 表面改性 |
Effects of Graft Styrene onto Metal Magnetic Powders on the Electromagnetic Parameters |
| |
| Xie Jian-liang,Liang Bo-lang, Deng Long-jiang.Effects of Graft Styrene onto Metal Magnetic Powders on the Electromagnetic Parameters[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2008(5). |
| |
| Authors: | Xie Jian-liang Liang Bo-lang Deng Long-jiang |
| |
| Institution: | Xie Jian-liang,Liang Bo-lang,, Deng Long-jiang (State Key Laboratory of Electronic Thin Films , Integrated Devices,University of Electronics Science , Technology of China Chengdu 610054) |
| |
| Abstract: | The surface of metal magnetic powders was modified by polystyrene,which was formed by chemical bond quomodo grafting styrene to the surface of metal magnetic powders by silane coupling agent A-151.We research the temperature,dosage of silane coupling agent A-151,dosage of BPO,and length to the graft efficiency. The appearance,phase constitution were characterized by SEM,RA-IR. And the powders were randomly dispersed in paraffin for microwave electromagnetic parameters test and comparison. The results show t... |
| |
| Keywords: | grafting ratio metal magnetic powder permittivity polystyrene surface modification |
| 本文献已被 CNKI 等数据库收录！ |
|
