| 非等温差示扫描量热法(DSC)研究石墨对乙烯基酯树脂固化行为的影响 |
| |
| 引用本文： | 杜海芹,方卫民. 非等温差示扫描量热法(DSC)研究石墨对乙烯基酯树脂固化行为的影响[J]. 浙江大学学报(理学版), 2012, 39(2): 200-204 |
| |
| 作者姓名： | 杜海芹 方卫民 |
| |
| 作者单位： | 浙江大学化学系,浙江杭州,310028 |
| |
| 基金项目： | 浙江省科技计划资助项目(2004C21020) |
| |
| 摘 要： | 采用红外(IR)及非等温差示扫描量热法(DSC)研究了乙烯基酯树脂(VER)及石墨/VER复合体系的固化行为.结果表明:计算所得VER及石墨/VER复合体系的表观活化能Ea分别为46.15和79.82kJ.mol-1;反应级数n分别为0.950和0.951.复合体系中树脂的固化放热量的平均值ΔH比纯VER体系的约降低17%,一定程度上降低了树脂的固化反应程度;复合体系中树脂几乎不存在后固化现象.
|
| 关 键 词： | 石墨 乙烯基酯树脂 固化反应 |
Effect of graphite on the curing behavior of vinyl ester resin by non-isothermal DSC |
| |
| DU Hai-qin , FANG Wei-min. Effect of graphite on the curing behavior of vinyl ester resin by non-isothermal DSC[J]. Journal of Zhejiang University(Sciences Edition), 2012, 39(2): 200-204 |
| |
| Authors: | DU Hai-qin FANG Wei-min |
| |
| Affiliation: | (Department of Chemistry,Zhejiang University,Hangzhou 310028,China) |
| |
| Abstract: | Curing behavior of vinyl ester resin(VER) and graphite/VER composites was studied by infrared(IR) and differential scanning calimetry(DSC) at different scanning rates.The results indicated that the apparent activation energies and reaction order of VER and graphite/VER systems were as follows: 46.15,79.82 kJ·mol-1;0.950,0.951.The curing average exothermic heat ΔH-of the composites was decreased about 17% than the pure VER system,thus the curing degree of the resin was reduced to a certain extent;postcure phenomena was almost non-existent in the composite system. |
| |
| Keywords: | graphite vinyl ester resin curing reaction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《浙江大学学报(理学版)》浏览原始摘要信息 |
|
点击此处可从《浙江大学学报(理学版)》下载免费的PDF全文 |
