Method of test for determination of heats and temperatures of melting and crystallization of electrical insulating materials by differential scanning calorimetry 用差示扫描量热法测定电绝缘材料熔化和结晶时所产生的热量和温度的试验方法
Thermal conductivity of solid fuel , specific heat and curve of scaning hot method ( dsc ) under different temperture rate were acquired 进行了热物性参数试验研究,获得了固体燃料的导热系数、比热以及不同升温速率下的差示扫描量热法( dsc )曲线。
The principles of differential scanning calorimetry , electron microscope , nuclear magnetic resonance and x - ray were introduced in this paper together with their applications in oil quality control , development direction of investigation on oil quality control was also forecasted here 摘要介绍了现代物理化学方法（差示扫描量热法、电子显微镜、核磁共振法、 x -射线衍射法）的原理及其在油脂质量控制中的应用，并预侧了油脂质量控制研究的发展方向。
Differential scanning calorimeter ( dsc ) combined with melt fluxing technique was used to realize undercooling of melt and its specific heat was measured at the same time , and its thermodynamics were calculated simultaneously and compared to four well - known models 本文将差示扫描量热法( dsc )和助熔剂处理技术相结合，研究了熔体的过冷现象，测量了过冷状态下熔体的比热，计算了过冷熔体凝固过程中的其它热力学参数，并与四种近似模型进行了比较分析。
The source of uncertainty was analyzed in detail about the determination of the epoxide index for epoxy resins by infrared spectroscopy , the determination of the temperature and the heat of the curing reaction for epoxy resins by differential scanning calorimetry , the determination of the hydroxymethyl index for phenolic resins by infrared spectroscopy and the reverse phase method of the high performance liquid chromatography for phenolic resins . the uncertainties of these testing methods were determined . some applied tests were carried out 在大量试验研究的基础上，首次对红外光谱法测定环氧树脂环氧指数试验方法、差示扫描量热法测定环氧树脂反应温度和反应热试验方法、红外光谱法测定酚醛树脂羟甲基指数试验方法、酚醛树脂的高效液相色谱分析方法的不确定度来源进行了分析，对测量方法的不确定度进行了评定，并进行了应用试验。
Epoxy resin / nano - sio2 composite materials were obtained from in situ polymerization , and then the microstructure and properties of the materials are investigated by transmission electron microscopy , scanning electron microscopy and differential scanning calorimetry , etc . results indicated that the microstructure of the modified materials shew the structure of nanometer materials , and the mechanical properties , heat distortion temperature and electricity properties and of the materials were all improved by addition of nano - sio2 . after the nano - sio2 was pretreated with organic silicon coupling agent ( h2n - ch2ch2ch2 - si ( oc2h5 ) n ) , the nano - sio2 particles were dispersed in epoxy resin matrix homogeneously 采用原位分散聚合法制备了环氧树脂纳米sio _ 2材料，并通过透射电镜( tem ) 、扫描电镜( sem ) 、差示扫描量热法( dsc )等对材料的结构与性能进行了分析和讨论。结果表明，所制备的环氧树脂纳米sio _ 2材料具有纳米材料的结构特征，对于提高环氧树脂的力学性能、热学性能及其电性能等都有作用，其中线膨胀系数明显降低，冲击强度和弯曲强度在sio _ 2含量3附近出现最大值，分别提高112和109 。
By framing reasonable technology and plenty of repeating experiment , the main contributions have been made as follows : 1 ) the analysis of differential scanning calorimetry ( dsc ) was made on the bmi resin , qy8911 - ii . curing reaction of the qy8911 - ii was studied by dsc . the effect of heat history on the resin was discussed and the adequate parameters for filament winding technology were determined . 2 ) the study on preparation technology of prepreg strands was carried out 通过制定合理的工艺和大量的反复实验，主要完成了以下三方面的工作： 1 )针对缠绕工艺特点，对qy8911 -双马来树脂进行了差示扫描量热法( dsc )分析，通过测试数据及对大量数据分析，确定了用qy8911 ?进行加热缠绕的合理工艺窗口，指明了用qy8911 -进行加热缠绕工艺的可行性； 2 )开展了预浸纱制备工艺实验研究，通过反复调试获得了满意的工艺参数，制备出了满足工艺要求的预浸纱，为m46j / qy8911 -缠绕复合材料的研制奠定了基础。
