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Synthesis and Performance of Polyurethane Coated Urea as Slow/controlled Release Fertilizer李青山,王利民State Key Laboratory of Metastable Materials Science and Technology, Yanshan University摘 要:Polyurethane coated urea slow/controlled release fertilizer was prepared based on urea granules, isocyanate, polyols and paraffin. Isocyanate reacted with polyols......
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Electroplating zinc transition layer for electroless nickel plating on AM60 magnesium alloys WANG Xiao-min(王晓民)1, ZHOU Wan-qiu (周婉秋)1,2, HAN En-Hou(韩恩厚)2 1. College of Chemistry and Life Science...: Electroplating zinc coating as transition layer of electroless nickel plating on AM60 magnesium alloys was investigated. The zinc film can be deposited in a pyrophosphate bath at 50-60 ℃ under......
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Effect of Lu2O3 on Charge/discharge Performances of Spherical Nickel Hydroxide at High Temperature Ren Junxia1,Li Yuzhan1,Yan Jie1,Wang Xiaojian1,Gao Xueping1 (1.Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China) Abstract:Nickel-metal hydride (Ni/MH) batteries are one of promising batteries for electric vehicle applications, but at high temperature the charge......
Synthesis and Characterization of Shape Memory Polyurethane for Deployable Structures刘宇燕Department of Polymer Materials and Engineering,Harbin Institute of Technology摘 要:A series of shape memory polyurethane elastomers(SMPUs) were synthesized by altering the chain extenders.The reaction was proceeding by solution prepolymerization method.Infrared......
J. Cent. South Univ. (2018) 25: 754-763 DOI: https://doi.org/10.1007/s11771-018-3780-1 Effect of additives on anode passivation in direct electrolysis process of copper–nickel based alloy scraps LI... and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract: Effects of nickel component, thiourea, glue and chloride ions and their interactions on the passivation of copper–nickel based......
Microstructure and properties of nanocrystalline nickel coatings prepared by pulse jet electrodeposition TIAN Zong-jun(田宗军)1, WANG Dong-sheng(王东生)2, WANG Gui-feng(王桂峰)1, SHEN Li-da(沈理达... of Mechanical Engineering, Tongling College, Tongling 244000, China Received 10 December 2009; accepted 24 March 2010 Abstract: The fabrication of nanocrystalline nickel coatings was conducted by pulse jet......
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: In order to understand how the material parameters take effects on smoldering and transition from smoldering to flaming combustion, four kinds of different density polyurethane foams and analysis.... The results show that polyurethane foam which has the big density produces more calories in natural and produces high concentrations of CO, and provides plenty of flammable gas. So, it is easier......