Co3O4纳米粒子填充耐高温有机硅树脂复合材料,可用来制备耐高温热流传感器表面的吸收热辐射材料.Co3O4粒子表面采用接枝处理的方法接枝上甲基丙烯酸丁酯来改善纳米粒子与有机树脂的界面性能和防止粒子间的相互团聚.采用红外分析和热失重分析的方法研究了接枝状态和接枝率.Co3O4纳米粒子的表面处理对复合材料界面性能、吸热性能和耐热性能的影响通过透射电镜(TEM)、热流传感器的校正试验、热失重分析(TGA)和热失重的微分曲线(DTG)进行了研究.结果发现,Co3O4粒子的表面处理提高了其在有机硅树脂中的分散性能,同时提高热流传感器的热流灵敏度.未改性纳米Co3O4粒子的加入降低硅树脂的耐热性;经表面改性的Co3O4粒子的加入,提高硅树脂的耐热性.
参考文献
| [1] | Lopez D, Cendoya I. Preparation and characterization of pol-ystyrene-based magnetic nanocomposites thermal, mechanical and magnetic properties[J]. Polymer Engineering and Science, 2001,41(11): 1845-1853. |
| [2] | Sudaryanto N T. Interfacial and mechanical properties of γ-Fe2O3/segmented polyurethane/poly(vinyl chloride) composites[J]. Journal of Applied Polymer Science, 2001,82 (3): 3030-3035. |
| [3] | Upadhyay R D, Kale D D.Properties of polypropylene filled with synthetic sodium aluminum silicate[J]. Journal of Applied Polymer Science,2001,81(8):2297-2303. |
| [4] | 王晓慧, 王子忱, 李煦, 等. 超微粒Co3O4的合成与表征[J]. 高等学校化学学报, 1991,12(11): 1421-1424. |
| [5] | 庄稼, 迟燕华,王曦,等. 室温固相反应制备纳米Co3O4粉体[J]. 无机材料学报, 2001,16(6): 1023-1027. |
| [6] | Teofil J, Andrzej K. Influence of silane coupling agents onsurface properties of precipitated silica[J]. Applied Surface Science, 2001,172:18-32. |
| [7] | Marcel P. Mechanochemical treatment of CaCO3 for reducing hydrophylicity[J]. Polyplastic Technology Engineering, 1998,37:115-126. |
| [8] | Rong M Z, Zhang M Q. Structure-property relationships of irradiation grafted nano-inorganic particle filled polypropylene composites[J]. Polymer, 2001,42(1):167-183. |
| [9] | 王勇.碳酸钙的表面辐照处理-丙烯酰胺在碳酸钙粉末上的接枝聚合[J].成都科技大学学报, 1994,78(1): 19-24. |
| [10] | Garcia A B, Alonso A M. Modification of the surface proper-ties of an activated carbon by oxygen plasma treatment[J]. Fuel,1998, 77(6): 613-624. |
| [11] | Haworth B, Raymond C L. Polyethylene compounds contain-ing mineral fillers modified by acid coatingsⅡ: Factor influencing mechanical properties[J]. Polymer Engineering and Science,2001,41(8): 1345-1363. |
| [12] | Fujihi K, Taubokawa N. Graft polymerization of vinyl mono-mers initiated by azo groups introduced onto carbon black surface[J]. Polymer Journal, 1990,22:661-670. |
| [13] | 吴春蕾,章明秋,容敏智. 纳米SiO2表面接枝聚合改性及其聚丙烯基复合材料的力学性能[J]. 复合材料学报, 2002,19(6): 62-67. |
| [14] | Visser S A. Effect of filler type on the response of polysilo-xane elastomers to cyclic stress at elevated temperatures[J]. Journal of Applied Polymer Science, 1997,63(13): 1805-1820. |
| [15] | Jelena D J,Milutin N G. The thermogravimetric analysis of some polysiloxanes[J]. Polymer Degradation and Stability,1998, 61(1): 87-93. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%