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张媛娟, 申福花, 徐锦波, 等. PCB封装胶膜复合改性及紫外老化机理研究[J]. 太阳能学报, 2025,(11):272-279.
张媛娟, 申福花, 徐锦波, et al. PCB封装胶膜复合改性及紫外老化机理研究[J]. 2025, (11): 272-279.
张媛娟, 申福花, 徐锦波, 等. PCB封装胶膜复合改性及紫外老化机理研究[J]. 太阳能学报, 2025,(11):272-279. DOI: doi:10.19912/j.0254-0096.tynxb.2024-1212.
张媛娟, 申福花, 徐锦波, et al. PCB封装胶膜复合改性及紫外老化机理研究[J]. 2025, (11): 272-279. DOI: doi:10.19912/j.0254-0096.tynxb.2024-1212.
以聚乙烯醇缩丁醛/氮化硼/碳纳米管复合胶膜为研究对象
针对辐照时长和辐照度两个影响因素开展人工紫外照射实验
并通过瞬态电热技术测量其热物性。研究结果表明:复合胶膜在氮化硼与碳纳米管的质量比为5∶5时导热性能最佳;经过10 W/m2辐照度的紫外照射后
复合胶膜的导热系数仍可达0. 26 W/(m·K);随着辐照时长的增加
材料内部结构开始出现断裂和降解现象。通过液体核磁表征分析胶膜在紫外照射前后特征峰的变化
探究复合胶膜紫外老化机理以及交联反应和降解反应对材料导热性能的影响。
With a composite film made of polyvinyl butyral
boron nitride
and carbon nanotubes as the study subject
artificial UV radiation experiments were conducted to investigate the two critical factors influencing the thermal conductivity of composite films: irradiation time and intensity. The transient electrothermal technology was used to measure the thermophysical properties of the film. The findings indicate that the composite film performs best at a mass ratio of carbon nanotubes to boron nitride of 5:5. The thermal conductivity of the composite film still approaches 0.26 W/(m·K) at a UV radiation intensity of 10 W/m. The material’s internal structure starts to break down and deteriorate as the radiation duration increases. In order to investigate the UV aging mechanism of the composite adhesive film and the effects of cross-linking and degradation reactions on the material thermal properties
alterations in the characteristic peaks of the samples pre- and post-UV irradiation were analyzed using solution-state NMR.
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