助手标题
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
共[38]条 当前为第21条到40条
 

相关语句
未完全匹配句对
    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。
    The results show that DAAT is stable up to 283℃,with maxima exotherm at 330℃ and ΔH of 1974.33J/g.
    结果表明DAAT热稳定性好、能量高,在10℃/min升温速率下,DAAT在280℃开始分解,放热峰值330℃,放热峰的分解焓为1974.33J/g;
    DHTz is stable up to 120℃,with maxima exotherm at 159℃ and ΔH of 1843.23J/g.
    DHTz在120℃开始分解,放热峰值159℃,放热峰的分解焓为1843.23J/g。
    Comparing the thermostabilities of PEG, the thermostabilities of P(AN)27-b-P(EG)45-b-P(AN)27 were improved and the exothermic peak position of the copolymers had no obvious changes when PEG blocks existed.
    结果表明,三嵌段共聚物P(AN)27-b-P(EG)45-b-P(AN)27的热稳定性较纯聚乙二醇P(EG)好,且柔性链PEG的引入对嵌段共聚物的放热峰位置没有显著的影响.
    The present paper describes the preparation of the inclusion complex of 1 -MCP with β -CD in lab and its investigation by a series of methods in order to provide theoretical data for further applications.
    热重分析显示包结物在91℃出现一个放热峰,这是客体分子1-MCP克服包结驱动力与β-CD分解而引起的。
    But it appears twodifferent peak. It can be said that, the two different component generate something physical change because the different states during the process. It is probable that the PEG molecular weight resort and reorientation, and correspondingly the characteristic parameters change.
    结果表明,PEG二元体系的DSC图谱并不是体系中两组分单独时DSC图谱的简单相加,而是出现了两个大小不一的吸热峰和一个放热峰,这说明不同分子量的PEG两组分,混合前后所处的物理状态不同,混合体系内发生了某种物理变化,可能使得PEG大分子重新排序、取向,结晶相发生了改变,使得各特征参数摘要值发生变化。
    Thereactions between BMPPKBP and DBA are very complex, thereactions and the structures of resulting networks depend on thestoichiometry of the oligomers.
    从 215 C 开始由一个放热峰,放热o峰的顶点处 261oC,这是 BMPPKBP 自聚反应放热。
    The activation energy was also calculated by the temperature of peak on DSC curve at different heating rates.
    也利用不同升温速率下最大放热峰温度值求解了裂解表观活化能。
    In order to find a resin matrix favorable for the pultrusion, the combinations of two kinds of organic-peroxide initiators were used, and the curing characteristics of the resulting resin matrix were studied using Differential Scanning Calorimeter (DSC) and Infra-red spectrometer (1R).
    首先分析了乙烯基酯树脂的固化特性,采用具有不同引发效率的有机过氧化物引发剂,通过示差扫描量热(DSC)及红外吸收光谱(IR)分析了不同引发剂联用对树脂凝胶点、固化放热峰温度以及固化度的影响,结果表明合适的引发剂联用能够提高基体树脂的固化良并有利于拉挤工艺。
    Unsaturated polyester resin modified by dicyclopentadiene (DCPD) has same curing time but lower curing temperature and higher toughness compared to that of general resins.
    加入双环戊二烯(DCPD)进行改性,树脂的固化速度差异不大,但放热峰温度降低,树脂具有很好的韧性。
    The amount of dicyclopentadiene is in the range of about 0.1 to 0.2 mole against the MA component.
    在树脂:引发剂:促进剂=100:2:0.8(质量比)下40min内固化,放热峰温度为120℃。
    The exothermic peaks of the passivated catalyst was much lower than the sulfided catalyst.
    表明钝化催化剂放热峰比硫化后催化剂放热峰低得多。
    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。
    And it is found that the cure reaction occur in two temperature range, about 90 ℃ and about 120 ℃, under which the epoxy reacts with cure agent and reacts itself correspondingly.
    另外,DSC固化过程分析表明90℃左右、120℃左右都有固化放热峰,分别对应于环氧树脂与固化剂的交联固化和环氧树脂的自固化。
    Firstly, the effects of initiators and LPA on the gel time, curing time and peak temperatures in the curing reaction of UPR were studied by SPI method and differential scanning calorimetry(DSC), and the curing characteristics were analyzed in kinetics angle.
    首先,采用SPI法和差示扫描量热法(DSC)研究了引发剂、低收缩树脂(LPA)对凝胶时间、固化时间、放热峰温度的影响,并从动力学角度分析了固化反应特性。
    DSC, dynamic mechanical properties and density measurement have been performed for PET samples heat treated or stretched at different conditions. It was found that the position of the exothermal peak is obviously dependent on the degree of crystallization and orientation of the samples.
    用 DSC、动态力学方法和密度测量等手段对经不同条件热处理或拉伸的PET试样进行了研究,结果表明:DSC曲线上放热峰的位置明显地依赖于样品的结晶和取向程度。
    The amount of heat calculated from the exothermal peak is not uniquely determined by the density of the sample, but is linearly dependent on tan 6 at 70℃, which can be used as a measure of the amount of amorphous state within a sample.
    由放热峰面积算出的结晶过程的热量与试样密度无单值的依赖关系,而线性地依赖于 70℃时的力学损耗值 tanδ,后者为试样中非晶区部分多少的量度。
    The differential thermogram of the phenolic resin showed two exothermic peaks in the regions 140 to 145 ℃ and 155 to 160℃, the exact positions of these maxima depending on the heating rate.
    由差示扫描量热图可知,树脂的两个放热峰分别位于140~150℃和155~160℃,峰值的位置和加热速率有关。
    Peak temperature is 115℃, hardnessincreased to 70 in 40-50 min.
    放热曲线测得最高放热峰为115℃。
    The catalytic effect for carbon fiber nucleating the formation of macromolecular crystal and limiting regular growth of the crystal were existed. Inherent characterization on the surface of carbon fiber led to appear the exotherm peak feature of the nascent composites of,carbon fiber/ nylon-1010 during DSC scanning.
    碳纤维的存在对尼龙1010大分子起着加速晶体形态,限制大分子结晶正常生长的界面效应,碳纤维表面固有的特性致使初生态碳纤维/尼龙1010复合物在DSC扫描过程中呈现出放热峰特征。
 

首页上一页12下一页尾页 

 
CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社