rf凝胶 resorcinol-formaldehyde gels(0) rf gels(1)   rf gels      Influence of dispersant on gelation process of RF gels doped by titanium      分散剂对RF凝胶掺钛过程的影响 短句来源   “rf凝胶”译为未确定词的双语例句      Systemic analysis various factors which effect gel course, such as ratio of reactants and the dosage of catalyst, and probed into the better experiments conditions(the concentration of resorcinol and formaldehyde is more than 2% and the value of R/C is between 50 and 300);      深入研究了反应物配比催化剂用量等条件对凝胶过程的影响,得到了较佳的RF凝胶制备条件(RF浓度应大于2%,R/C值取50～300); 短句来源      Experimental results show that the grid size formed by RF ranges from several to several decade nm and the mean size of nano-RDX in RDX/RF is 38 nm.      结果表明,RF凝胶网格尺寸在几个纳米到几十个纳米之间,RDX/RF凝胶中的RDX晶粒大小平均为38 nm。 短句来源      The growth of RF aerogel fractal has been simulated by computer and the growing mechanism of aerogel fractal structure has been studied also.      采用计算机模拟了RF凝胶的溶胶-凝胶反应全过程,从理论上研究RF气凝胶反应机理。 短句来源      The experiment results indicated that ultrasonic with unvarying temperature disposal shortened gel time and optimized quality of gels, and the factors of ultrasonic effect gel reaction velocity were analyzed;      通过引入超声波改进了RF气凝胶的制备工艺,缩短了凝胶反应时间,提高了凝胶品质,并探讨了超声波促进RF凝胶反应作用的原因; 短句来源      The electron distribution of resorcinol and formaldehyde and single/multi-methyol resorcinol are calculated, then primary investigated the direction of transform from substabilization to stabilization and the principle of gel up-growth;      对间苯二酚和单元/二元羟甲基间苯二酚的电荷分布进行计算,分析了亚稳态向最稳态过渡的趋势,并对RF凝胶的生长机理做了初步的理论探索; 短句来源 更多          相似匹配句对      Influence of dispersant on gelation process of RF gels doped by titanium      分散剂对RF凝胶掺钛过程的影响 短句来源      Drying of gels      凝胶的干燥 短句来源      INTELLIGENT GELS      智能凝胶 短句来源      Preparation of Resorcinol-formaldehyde Aerogel Films by Sol-gel Method and Elementary Researches of Application      RF有机气凝胶薄膜的溶胶—凝胶制备和初步应用研究 短句来源      An Overview of MOSFET Modeling for RF IC's      RF模型综述 短句来源 查询“rf凝胶”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   resorcinol-formaldehyde gels Effect of Aging on Mechanical Properties of Resorcinol-Formaldehyde Gels 例句来源       Resorcinol-Formaldehyde gels have been prepared in aqueous solutions. 例句来源         rf gels The enhancement of mechanical properties of RF gels in acidic conditions is related to polycondensation reaction rates. 例句来源                The metal doped resorcinol-formaldehyde gels are important target materials in inertial confinement fusion research,especially for application foreground of low-temperature freeze target research. In this paper ,resorcinol,formaldehyde and titanium nanoparticles are used as reactants, titanium nanoparticles are doped into RF gels successfully by physic method. In gelation process, the particle-diameter distributions are measured by zetasizer. The result indicates that the best dispersant for titanium nanopa...             　以间苯二酚、甲醛和经分散的纳米钛粉为反应前体,利用物理掺杂方法研究了掺钛RF凝胶的制备工艺,并在凝胶过程中以zeta电位 粒径分布测试仪对溶液的粒径分布进行分析测试。实验发现六偏磷酸钠对纳米钛粉的分散性最好,掺杂后凝胶时间明显缩短;分散剂种类和用量对凝胶时间有较大影响,其用量为纳米钛粉量的50～100倍为宜。 文摘来源          Nano-composite energetic materials,hexahydro-1,3,5-trinitro-1,3,5-triazine/resorcinol-formaldehyde(RDX/RF) aerogel,was prepared by crystallization of RDX in the N,N-dimethyllformamide(DMF) within the nano-dimensional pores of resorcinol-formaldehyde(RF) gel matrix.The structures of RDX/RF aerogel were characterized by atomic force microscopy(AFM),scanning electron microscopy(SEM),X-ray powder diffraction(XRD),and BET method.Experimental results show that the grid size formed by RF ranges from several to sev...             以间苯二酚和甲醛为原料,Na2CO3.10H2O为催化剂,采用溶胶凝胶法,通过RDX在间苯二酚-甲醛树脂(RF)形成的纳米网格中结晶,制备了RDX/RF纳米复合含能材料。用原子力显微镜(AFM),扫描电子显微镜(SEM),X射线粉末衍射仪(XRD),BET比表面积分析仪对其结构进行了表征。结果表明,RF凝胶网格尺寸在几个纳米到几十个纳米之间,RDX/RF凝胶中的RDX晶粒大小平均为38 nm。空白RF气凝胶的比表面积达551.5 m2.g-1,炸药填充后样品比表面积为142.7 m2.g-1。与同组分的机械混合物相比,RDX/RF复合物的热分解峰提前约25℃,机械感度有所降低。 文摘来源          Resorcinol-formaldehyde(RF) gel films were synthesized by a series of processes such as sol-gel,supercritical drying and carbonization using resorcinol and formaldehyde.The main factors that affect the properties of aerogels such as HAC content and the reaction temperature were investigated to indicate the mechanism of self-assemble RF films.The micro-morphology and structures of the gel films were characterized by FT-IR and SEM.It was found the thickness of RF aerogel films is about 50 μm,the size of parti...             以间苯二酚和甲醛为原料,对水相溶胶-凝胶聚合自发成膜技术获得间苯二酚-甲醛(RF)凝胶薄膜进行了研究。主要研究了溶胶-凝胶过程中冰醋酸(HAC)含量和反应温度对凝胶过程的影响,分析了RF有机凝胶自发成膜的形成机理。IR和SEM分析表明,所得到的凝胶膜具有典型的RF有机气凝胶结构,薄膜厚度大约为50μm,膜由直径10μm左右的粒子组成,没有观察到明显的孔洞结构。分析认为,在间苯二酚和甲醛占总溶液的质量分数为67%左右及控制pH值在一定的酸性范围,RF凝胶自发成膜过程和机理可以用RF凝胶的收缩机理加以解释,RF自发膜的表面形貌及形成机理与均匀泡沫的连续相分离机理类似。 文摘来源       相关查询: rf 凝胶— 凝胶 熊果苷凝胶 豆腐凝胶 吡罗昔康凝胶 过氧化氢凝胶 凝胶萃取 眼凝胶 rf功率 rf resonators rf line  对查询结果不满意

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