热焓

过剩热焓松弛CO2和甲苯在PET薄膜中渗透的影响

Effect of excess enthalpy relaxation on permeation of co_2 and toluene through PET film

A淀粉的膨润力小于B淀粉，而蓝值、溶解度、粘度、相变温度和相变热焓均大于B淀粉。

The A - starch has higher molecular weight , distribution of DP , blue value , solubility , viscosity , gelatinization temperature and gelatinization enthalpy .

在《国家标准》中，给出的密度值和热焓值所对应的温度分辨率，仅为ρ／1℃、h／1℃。

In the " National Standard ", the temperature resolution for density and enthalpy is only ρ / 1 ℃ and h / 1 ℃ .

材料的熔融热焓ΔHm能敏感地反映其结晶形态差异。

The melting enthalpy Δ H_m of materials reflects sensitively the difference in crystalline morphology .

采用ORIGIN数据统计分析软件对常见19种食品的热焓-温度数据进行拟合，并对拟合公式求导数，给出食品热焓和比热容的经验计算公式。

The ORIGIN is used for fitting the experience formula to the enthalpy-temperature data of foods and the derivative of the experience formula is calculated in the paper .

本文研究了交联不饱和聚酯在低于Tg温度下退火处理，过剩热焓松弛过程及其物理和力学性能的变化。

The excess enthalpy relaxation ( EER ) process and changes of physical and mechanical properties in a crossly linked unsaturate polyester annealed at temperatures below Tg have been studied .

GMAW熔滴热焓分布及焊缝几何尺寸的预测和控制

Distribution of Heat Content of Filler Metal Droplets and predicting and Controlling Geometry size in GMAW

脂类酸增加与淀粉形成的附和体提高了淀粉糊化的热焓值（ΔH），并对淀粉糊的热稳定性有较大影响，促进陈米饭的老化回生。

Lipid acid increased and the echoed bodies of starch formation enhance the starch paste the enthalpy value (△ H ), and have bigger impact on paste thermal stability of starch Promote aging rice to setback .

应用DSC对不同固形物含量的大豆蛋白的7S球蛋白和11S球蛋白的变性热焓、变性温度进行了测定。

DSC was used to measure the denature enthalpy and denature temperature of 7S and 11S globulin of different solid content .

采用反算法对相变热焓进行计算并与综合热分析仪（DSC）实验结果相对比，并且对恒速冷却试件与实际空冷试样进行金相组织观察对比。

The result was compared to experimental results calculated with a comprehensive thermal analysis instrument ( DSC ), and the metallurgical structure in test pieces cooling in constant-speed was examined .

从DSC分析结果中看出，超声波场致作用使得UHMWPE的熔点升高，峰高增大，熔融热焓显著提高。

From the results of DSC analysis we could see the Tm , the Peak Height and the Δ Hmof UHMWPE increased by the effect of ultrasonic field .

结果表明，随退火时间增加，从Tg转变吸热峰确定的过剩热焓松弛量、Tg温度、密度增加，而反式构象含量减少。

The results suggest that the amount of excess enthalpy relaxation as determined from the endothermic peak in T , interval , the Tg and density all increase with annealing time , but the trans-conformation component of samples decreases .

MDSC结果显示F2314的固有结晶度很小，DSC所测得的结晶是冷结晶和热焓松弛形成的。

The initial crystalline is very small from our experiments and crystalline tested by DSC results from thermal relaxation and subcooling crystallization .

与TQ相比，TRS淀粉具有高的糊化温度和低的糊化热焓与膨胀势。

Compared to TQ , TRS starch showed higher gelatinization temperatures , lower gelatinization enthalpy and swelling power .

随着NaCl添加量的增加，脆肉鲩的相变温区向低温方向移动，表观比热峰值下降，冰点的热焓值下降。

As the contents of the NaCl increased , the phase-transition temperature shifted to the lower temperature range , meanwhile both the apparent specific heat and enthalpy at the freezing point decreased .

结果表明，该环氧树脂与改性液体酸酐的固化反应为放热反应，DSC测定的反应热焓为272～335J/g；

It was shown that curing reaction of this kind of epoxy resin with modified liquid anhydride was an exothermic reaction , and the reaction enthalpy determined by DSC method was 272-335 J / g.

DSC分析表明，超高分子量聚乙烯接枝硅烷后熔融热焓、结晶度稍有提高，但其熔点有所下降，熔限变窄，说明其晶体减小；

The analysis of DSC showed that the crystallinity and melting enthalpy (Δ H ) of silane grafted UHMWPE kept no change , but melting point went down , and the melting rate was accelerated .

本研究将糯玉米交联淀粉与普通玉米交联淀粉和普通玉米淀粉在午餐肉中的应用效果进行对比。根据热焓值（ΔH）的大小对供试的普通玉米杂交种进行分类。

This study compared the application effect of waxy corn cross-linked starch in midday-meal-meat can with that of normal corn cross-linked starch or of normal corn starch respectively in it . The normal corn hybrids were categorized according to different Enthalpy (Δ H ) .

温度升高，稀溶液pH值增加，共聚物电离反应的热焓△Hion为198.36kJ／mol；

However , the viscosity of diluted solution will not change much with pH value that increases as temperature goes up . The enthalpy of ionization reaction of the copolymer △ H is 198 . 36 kJ / mol.

共混体系的熔融热焓随离聚物Na盐含量的增加有所降低，随Zn盐含量的增加稍有提高，两者的熔点及熔限与熔融热焓的变化规律一致。

However , the melting enthalpy of PET in the blends increases when the content of ionomer Zn salt increases . The change tendency in melting point of PET in the blends is consistent with that of melting enthalpy .

而肌动蛋白则相反，48h内热变性温度降低了1.43℃，热焓降低了0.015J/g。

In contrast , the actin decreased 1.43 ° C for heat denaturation temperature and 0.015J/g for enthalpy .

在对结晶潜热处理的过程中，充分考虑了ZA27合金宽结晶温度范围特点，采用热焓法处理。

The heat-enthalpy method was used to deal with the latent heat allowing for the broad crystallization temperature interval of ZA27 alloy .

物理老化对PEK-C、PES-C及其复合材料的玻璃化转变热焓松弛特征的影响

Effects of physical ageing on the enthalpy relaxation characteristics of glass transition of pek-c , PES-C and their composites

DSC的测试结果表明，P（VdFHFP）的加入后，混合物的熔融温度和熔融峰热焓都会随之下降.研究表明对PEO的共混改性可以显著提高电解质电导率。

The DSC showed that the melting temperature of the mixture decreased , and the enthalpy of the melting peak decreased when the P ( VDF-HFP ) was added to the mixture .

结果表明：PBT／PET共混体系的理论热焓均小于41.8mJ，为热力学相容体系；

The compatibility of PBT / PET blend systems was studied . The results showed that the PBT / PET blend systems showed the enthalpy less than 41 . 8 mJ , which belonged to thermo-dynamic compatible system .

采用热焓法和ANSYS生死单元技术模拟得到了不同模型的烧蚀形态、温度场、应力场和质量烧蚀率，以此为基础分析了不同组元间能量流动的路径和相互作用的特点。

Heat enthalpy method and ANSYS element birth and death technique were adopted to calculate the ablation profile , temperature field , stress field and mass ablation rate . Based on the result , some conclusions of the interaction characters were obtained .

DSC结果表明，从有序到无序结构变化的一级相转变热焓相同，但由于电场诱导结晶的晶体较小而表现为转变温度的降低。

In DSC , the enthalpy , corresponding to the first order phase transition from order to disorder structure , was equal between these two samples , but the transition temperature was lower as its crystal size was smaller .

DSC分析作为材料测试中的重要方法之一，常用于分析材料在加热及冷却过程中热量、热焓及比热容的变化等物理参数，具有其他方法不可替代的作用。

As one of the basic testing methods , the DSC analytical method plays a unique role in measuring the basic thermal physical parameters of materials , such as changes in specific heat , enthalpy , in comparison with other methods .

对于PP-g-PVOH，随醇解率增加，PP的结晶模式由均相成核向异相成核转化，结晶温度显著上升，结晶热焓增加，但由于分子链的规整性降低，导致结晶速率常数降低。

For PP-g-PVOH , the crystallization behavior was changed from homo to hetero nucleation with SP increased , the best crystallization temperature and enthalpy was increased dramatically , but the crystallization rate was decreased because the integrity of molecular chain was decreased .

随着RDX含量的增加，HMX-RDX的晶型转变温度有所升高，晶型转化的热焓逐渐减少，共熔热焓却随之增加，共熔温度基本保持不变。

As the increase of w ( RDX ), the temperature of polymorphic transformation of HMX-RDX showed an increase and its enthalpy of polymorphic transformation gradually decreased ; on the other hand , the eutectic enthalpy of HMX-RDX increased but the eutectic temperature almost did not changed .