共搜索到2786条信息，每页显示10条信息，共279页。用时：0小时0分0秒290毫秒
were prepared by direct polymerization, suspension polymerization, and alternate suspension and solution copolymerization with the styrene. And then we reactivity of these products were studied... in the exploration of reactivity, it is found that the fluorescent intensity of complexes prepared by suspension polymerization increases significantly compared with the original particles, which is five......
17.81%. 关键词:复合材料; 悬浮聚合; 双层表面活性剂; 亲水性; composite materials; suspension polymerization; bilayer surfactants; hydrophilicity; [全文内容正在添加中] ......
In situ polymerization preparation and characterization of Li4Ti5O12-polyaniline anode material HE Ze-qiang(何则强)1, 2, XIONG Li-zhi(熊利芝)1, 2, CHEN Shang(陈 上)1, WU Xian-ming(吴显明)1, LIU... polymerization method using aniline, ammonium persulfate and hydrochloricarried as starting materials. Li4Ti5O12-PAn composite was characterized by X-ray diffractometry (XRD), infrared spectrum (IR......
,转速在180r/min左右,分散剂质量分数在0.15%左右时,可以制得粒径范围为0.2~0.8mm的聚苯乙烯微球,且微球具有良好的粒径分布.采用石蜡/甲苯,石蜡/乙酸乙酯为致孔剂时,可以形成纳米级小孔,且当石蜡/甲苯用量为86%时,孔比表面积可达到33.07m2/g,并随着交联剂用量的增加而增大. 关键词:悬浮聚合; 多孔微球; 粒径分布; 孔比表面积; suspension polymerization; porous micro-spheres; distribution of particles; pore surface area; [全文内容正在添加中] ......
Suspension principle of deep-ocean nodule collectorZHENG Hao(郑皓)1, 2, LIU Shao-jun(刘少军)1, 2, HU Qiong(胡琼)1, 2(1. School of Mechanical and Electrical Engineering, Central South University, Changsha... sure that the nodule collector can walk on the soft sediments of seafloor effectively, suspension principle of deep-ocean nodule collector is proposed. The supporting and driving mechanisms......
......
Optimization of suspension system of off-road vehicle for vehicle performance improvementM. Mahmoodi-Kaleibar1, I. Javanshir2, K. Asadi2, A. Afkar3, A. Paykani1(1. Department of Mechanical... University of Science and Technology, Tehran, Iran)Abstract:Vehicle suspension design includes a number of compromises to provide good leveling of stability and ride comfort. Optimization of off-road vehicle......
......
Effect of Magnetic Suspension Force in Electromagnetic Stirring on Microstructure of Al-Si Alloy () 摘要:Based on Maxwell equations, the Lorentz force in Al-Si alloy melt was calculated during the process of electromagnetic stirring using analytic approximation method. The effects of magnetic suspension force on the microstructure of Al-Si alloy were given under different electromagnetic......
......
