在对复合材料导热性能的多种预测模型进行理论分析和对比研究的基础上,应用自行研制的亚微米/微米薄膜材料热性能测试仪和差示扫描量热仪(DSC)对聚酰亚胺(PI)及其复合薄膜PI/SiO2的热扩散率和比热进行了实验研究,通过导热系数实测值和模型预测值的对比,显示预测模型中考虑填充颗粒尺寸分布的Sorin模型预测值与实验值更为吻合.理论预测和实验研究均表明,在20～160℃温区内,PI/SiO2的导热系数随着SiO2添加量的增加和温度升高呈现明显增大的趋势.
参考文献
| [1] | FEGER C;KHOJSTEH M;MCGRAWTH J E.Polyimides:materials,chemistry and characterization[M].Amsderdam:Elsevier,1989 |
| [2] | 徐庆玉,范和平,井强山,王洛礼.聚酰亚胺纳米杂化材料的制备、结构和性能[J].功能高分子学报,2002(02):207-213,218. |
| [3] | 谢华清;奚同庚.低维材料热物理[M].上海:上海科学技术文献出版社,2008 |
| [4] | CHOY C L;LEUNG W P;NG Y K .Thermal diffusivity of polymer films by the flash radiometry method[J].Journal of Polymer Science Part B:Polymer Physics,1987,25(09):1779-1799. |
| [5] | COCSON J K;HUA C S;LEE P M et al.Characterization of 6FDA-APBP polyimide films through impulsive stimulated thermal scattering[J].Journal of Materials Science,1995,30(23):5960-5966. |
| [6] | COWAN R D .Pulse method of measuring thermal diffusivity at high temperatures[J].Journal of Applied Physics,1963,34(04):926-927. |
| [7] | 奚同庚;周新宇;李宗杰 等.计算机运控的激光热导仪的研究[J].工程热物理学报,1980,1(02):147-155. |
| [8] | CAI An;XIE Hua-qing;XI Tong-geng.Thermal Diffusivity Measurement of nano/micro-scale thin films by nano-second laser flash technique from-50 to 200℃[A].Fukuoka,Japan,2007 |
| [9] | TOULOUKIAN Y S;HO C Y.Thermophysical Properties of Matter,Vol.10:Thermal Diffusivity[M].New York:Plenum Press,1973:120. |
| [10] | TOULOUKIAN Y S;HO C Y.Thermophysical Properties of Matter,Vol.2:Thermal Conductivity[M].New York:Plenum Press,1973:183. |
| [11] | AGARI Y;UNO T .Estimation on thermal-conductivities of filled polymers[J].Journal of Applied Polymer Science,1986,32(07):5705-5712. |
| [12] | LEWIS T B;NIELSEN L E .Dynamic mechanical properties of particulate-filled composites[J].Journal of Applied Polymer Science,1970,14(06):1449. |
| [13] | CHENG S C;VACHON R I .Prediction of thermal conductivity of 2-phase and 3-phase solid heterogeneous Mixtures[J].International Journal of Heat and Mass Transfer,1969,12(03):249. |
| [14] | Sorin HOLOTESCU,Floriana D.STOIAN.Evaluation of the effective thermal conductivity of composite polymers by considering the filler size distribution law[J].浙大学报（英文版）（A辑：应用物理和工程）,2009(05):704-709. |
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%