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    The Relationship of Peak Temperatures of DTG,DTA and DSC Curves in A First-Order Reaction
    Ⅰ级反应DTG,DTA与DSC曲线峰顶温度关系的研究
    In TPSR of CO, it was found that the desorbed amount of CO 2 and the peak temperature follow the same order as their activities.
    并发现在CO-TPSR过程中程脱物CO2的脱附量大小及峰顶温度次序与对CO的催化氧化活性也有一致的关系
    The kinetic parameteres of the curing reaction were obtained, with the apparent activition energy being 81. 27 kJ/mol, and the curing reaction order being 0. 90.
    E-PCE/DDS体系的最低固化反应温度为163.2℃,固化反应峰顶温度为228,1℃,固化反应表观活化能为81.27kJ/mol,固化反应级数为0.90。
    The results show that the curing activity was so greatly enhanced that the curing peak temperature decreased from 190 ℃ for the unmodified system to 120~140 ℃ for the modified systems, and the apparent activation energy of curing reaction decreased from 131 kJ/mol to 70~ 80 kJ/mol .
    结果表明 ,经过改性的固化体系的固化反应活性明显提高 ,固化反应峰顶温度从未改性体系的 1 90℃降至 1 2 0~ 1 4 0℃ ,表观活化能从未改性体系的 1 31 k J/mol降至 70~80 k J/mol.
    Results show that the curing activity of modified E 51/dicy curing system was so greatly enhanced that the curing reaction peak temperature decreased from 190 to 140℃, and the apparent activation energy of curing reaction is reduced from 145 5 kJ/mol to 70~80 kJ/mol.
    结果表明 ,改性体系固化反应活性明显提高 ,固化反应表观活化能降低 ,固化反应峰顶温度从 190℃降低至 14 0℃ ,固化反应的表观活化能由 14 5 5kJ/mol降至 70~ 80kJ mol;
    With the increase of arm numbers of PEG,the temperature of the melting peak of dried gels and the swelling ratio of hydrogels decrease;
    随着PEG臂数的增加 ,干胶的熔融峰顶温度下降 ,凝胶的溶胀比减小 ;
    Results show that the curing activity of modified epoxy resin(E-51)/methyl tetrahyhrophathalate(MTHPA) curing system is so greatly enhanced that the curing reaction peak temperature decreases 160 ℃~200 ℃, and the apparent activation energy of curing reaction is reduced from 160.3 kJ/mol to 63 kJ/mol~87 kJ/mol.
    结果表明 ,改性后的 E- 5 1/MTHPA体系反应活性明显提高 ,固化反应峰顶温度较未改性体系降低 160℃~ 2 0 0℃ ,固化反应的表观活化能由未改性体系的 160 .3k J/mol降至 63k J/mol~ 87k J/mol。
    Results show that the curing activity of EU modified E51/dicy curing system is so greatly enhanced that the curing reaction peak temperature decreases from 190 ℃ to 140 ℃, and the apparent activation energy of curing reaction is reduced from 145.51 kJ/mol to 73.61 kJ/mol.
    结果表明,改性体系固化反应活性明显提高,固化反应表观活化能降低,固化反应峰顶温度从190℃降低至140℃,固化反应的表观活化能由145.5kJ/mol降至73.6kJ/mol;
    The curing parameters such as beginning temperature, top point temperature and finishing temperature of the DSC curve were determined by graph method as 157, 177 and 206℃, respectively. The activation energy E_a was calculated as 112.5kJ/mol.
    外推法得到固化起始温度ti、峰顶温度tp、峰终温度tf分别为157、177和206℃,固化反应的活化能为112.5kJ/mol。
    The summit temperature of decomposition peak of RDX was lowered about 30C when the content of AP was equal to or greater than 8%.
    当AP含量在8%以上,可以使体系的分解峰顶温度较RDX降低约30C;
    The differential thermal analysis(DTA) showed that the endothermic peak temperature of compounded endothermic agents (1#:2#=5:5) was 148℃. And when its amounts were about 32%, the grinding amount arrived to the top.
    复合吸热剂 ( 1#:2 #=5 :5 )用量在 3 2 %左右时 ,总磨削量达到 2 7g ,差热分析DTA证明其吸热峰顶温度为 14 8℃。
    Furthermore, through Thermal Programmatic Desorption(TPD) desorption of NH_3 on catalysts is studied, and the curve showes only one chemical desorption peak which starts at 409K and reaches the top at 487K.
    利用程序升温 (TPD)法研究了NH3在催化剂表面上的脱附 ,起峰温度为40 9K ,峰顶温度为 487K ,出现一个化学脱附峰
    The DTA eurve showed that its initial decomposation temperature is 253℃ and the peak temperature is 293℃.
    该共聚物的初始分解温度为253℃,峰顶温度为293℃;
    From 189 ℃ to 236 ℃, the thermal decomposition process occurs with the peak temperature at 210 ℃. The mass percent of solid residue is up to 25%.
    在189~236℃范围内发生热分解,峰顶温度为210℃,固相残渣含量为25%;
    (2) DTA parameters(e.g.temperature range of decomposition peak,peak temperature,peak area,ΔH) are different significantly among four treatments;
    (2)对照组、激光处理组、UV-B处理组和UV-B与激光复合处理组的DTA热解参数(峰温度范围、峰顶温度、峰面积、峰高度、ΔH)存在明显差异;
    the melting peak temperature of HDPE crystal in PET/EN-MFMB decreased distinctly compared with that of pure HDPE and that of HDPE in EN-MFMB.
    HDPE结晶熔融峰顶温度比原料HDPE以及EN-MFMB中的HDPE的明显降低。
    At one time,the initial decomposition(temperature) of SD-33 bonder is 450.6℃,the top temperature is 456.6℃ and the enthalpy is 17.91 J/g on DSC curve having a rate of 5 K/min.
    同时,在升温速率为5 K/m in的DSC曲线上SD-33粘结剂从450.6℃开始分解放热,峰顶温度为456.6℃,结束温度为506.3℃,放热量为17.91 J/g。
    The curing temperature of A80/three kinds of Novolac resins is about 150℃ when 2-MZ(0.1phr)is used as accelerant. However,the scope of A80/ BPFN system's curing temperature is about 55℃,it is boarder than the other two systems'.
    以2-MZ(0.1phr)作为促进剂,三种线型酚醛固化A80体系的固化反应放热峰的峰顶温度均为155℃左右,其中A80/BPFN体系的固化温度范围较宽,约55℃。
    The curing temperature of novolac/A80 was about 150 ℃ when 2-MZ(0.1 phr) was used as accelerants. The scope of curing for BPFN/A80 was about 55 ℃. It could be cured completed under 150 ℃ for 2 hours.
    以2-MZ(0.1份)作为促进剂,三种线形酚醛固化A80体系的固化反应放热峰的峰顶温度均为155℃左右,其中A80/BPFN体系的固化温度范围较宽约55℃,在150℃条件下2 h可固化完全。
    All of 2,4,6-tri (dimethylamine methylene) phenol (DMP-30), hexamethylenetetramine (HMTA) and 2-methylimidazole (2-MZ) could accelerate the reaction between A80 and novolacs. The gel time was decreased dramatically with increasing of curing temperature. The temperatures of exothermic peak moved to low temperature with increasing of accelerant content.
    DMP-30、HMTA、2-MZ对A80/Novolacs固化体系的固化反应均有促进作用,随温度升高凝胶时间迅速下降,随促进剂用量增加固化反应放热峰的峰顶温度向低温方向平移。
 

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