<正>比较了4种由油脂台成的C22DGE、C22TGE、C21DGE、C36DGE可挠性环氧树脂的性能?通过TC～DSC分析。对可挠性环氧树脂固化体系的反应活化能及反应热焓进行了研究，探讨了固化产物的耐热性及机械性能与结构的关系。结果表明：长碳链环氧树脂固化反应为一相当复杂的放热反应-CezTGE/THPA、CzzDGE/THPA、C21DGE/THPA、C36DGE/THPA热焓分别为l73.35、131.83、155.67、102.46J/g，体系表观活化能分别为79.4、56.99、91.30、70.90kJ/mol。长碳链环氧树脂/酸酐固化产物的耐热性均不如双酚A缩水甘油醚型环氧树脂。但耐冲击性及柔韧性均优于E-51；长碳链环氧树脂适台干对柔韧性及粘度有特殊要求的场合使用。怛不适台应用干对温度要求特别高的设施。

Reflectance spectral was measured by using ASD FieldSpec HandHeld radiometer. Water samples for suspended solids concentration, chlorophyll-a, DOC measurements were collected at the same time. Based on the analysis of reflectance spectral and DOC concentration, it was found that the reflectance at the band 745nm and the first derivative at 665nm and 695nm could be used to retrieve DOC concentration. MERIS data became a potential remote sensing data for monitoring inland lake water’s quality due to its high spectral, time and radiance resolution. By simulating MERIS data based on spectral reflectance, it was found that DOC concentration could be effectively estimated at ratio of band 10 and ratio of band 9 and 12.