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MIT engineers have synthesized a superabsorbent material that can soak up a record amount of moisture from the air, even in desert-like conditions.
Interactions and Morphology of Triblock Copolymer - Ionic Liquid Mixtures and Applications for Gel Polymer Electrolytes
lock copolymer hydrogen bonding ionic liquid polymer electrolyte
2014/11/21
Room temperature ionic liquids (ILs) are a unique class of solvents which are characterized by non-volatility, non-flammability, electrochemical stability and high ionic conductivity. These properties...
Motion of Particles as a Probe: Dynamics and Assembly in Gel Networks/Aqueous Media
single particle tracking Quantum dots polyacrylamide hydrogel heterogeneous structure Quantum dot rings coffee ring effect
2014/11/21
Nanoparticles are of great interest with a wide variety of potential applications due to their unexpected but interesting physical properties which are different from bulk state, enable small length s...
Study on the properties of magnetorheological gel based on polyurethane
magnetorheological gel polyurethane viscoelastic property static yield stress dynamic yield stress
2015/3/30
Magnetorheological gels (MRGs) known as a new kind of magnetorheological material are composite gels containing magnetic particles suspended in polymer gels. In this study, a category of MR polymer ge...
Structure and electrorheological properties of nanoporous BaTiO3 crystalline powders prepared by sol-gel method
Porous BaTiO3 Electrorheological properties Sol–gel
2015/3/30
In this paper, a novel nanoporous barium titanate (BaTiO3) crystalline powder was synthesized by using triblock poly(ethylene oxide) (PEO) and poly(propylene oxide) (PPO) based systems (P-123) as the ...
Sol-Gel法制备NiTiSMA/FC复合材料的界面结构研究
复合材料 界面结构 薄膜
2008/11/6
借助XRD、SEM研究了Sol-Gel法制备NiTiSMA/FC薄膜复合材料在650℃晶化退火处理后的界面结构。结果表明，陶瓷薄膜层的约束抑制了NiTiSMA基体的高温时效反应；由于NiTiSMA基体表面的高温氧化产生的TiO2过渡层，使NiTiSMA与铁电陶瓷两异质之间良好结合。
Superhydrophobic cotton fabrics prepared by sol–gel coating of TiO2 and surface hydrophobization
superhydrophobicity titania sol UV shielding cotton fabrics
2010/10/12
By coating fibers with titania sol to generate a dual-size surface roughness, followed by
hydrophobization with stearic acid, 1H, 1H, 2H, 2H-perfluorodecyltrichlorosilane or their
combination, hydro...
Anisotropic elasticity of magnetically ordered agarose gel
anisotropic elasticity magnetic field effect agarose gel magnetic ordering storage modulus ultrasonic propagation
2010/10/12
The physical properties of agarose gel prepared under strong magnetic fields were investigated. The storage modulus was measured by the reflection method with an ultrasonic
pulse. The measurement res...
A novel method for synthesis of -Si3N4 nanowires by sol–gel route
sol–gel nanowires -Si3N4
2010/10/13
Silicon nitride (Si3N4) nanowires have been prepared by carbothermal reduction followed
by the nitridation (CTRN) of silica gel containing ultrafine excess carbon obtained by the
decomposition of de...
络合作用对Sol-gel法制备Er3+掺杂TiO2粉末光致发光特性影响
2007/12/12
摘要 以钛酸正丁酯为前驱体, 乙酰丙酮为络合剂, 分别在室温和70°C进行对前驱体改性的络合反应, 获得改性前驱体Ti(O-Bu)4-x(AcAc)x. 以异丙醇为溶剂, 采用溶胶-凝胶(sol-gel)法制备0.1~3.0mol% Er 3+掺杂TiO2粉末. 差热-热重(TG-DTA)分析结果表明, 由室温络合改性前驱体制备的粉末, 无定型到锐钛矿和锐钛矿到金红石的相变温度, 较由70°C络合...
Sol-Gel法制备球形UO2陶瓷颗粒
2007/12/12
摘要 以U3O8粉末为原料, 采用外凝胶与内凝胶结合的sol-gel法, 经过溶解制胶、凝胶成球、陈化、洗涤干燥、煅烧、还原烧结、筛选得到球形UO2陶瓷颗粒. 采用该方法制备的陶瓷颗粒为面心立方结构, 密度为理论密度的98.18%; 基本不含杂质, O/U比为2.00, 平均标准偏差为0.001; 平均直径为498.1μm, 标准偏差为14.7μm; 球形度分布在1.00～1.10区间, 平均值为...
Sol-gel法制备TiO2／PVP纳米复合材料及其表征
溶胶凝胶法 钛酸丁酯 聚乙烯吡咯烷酮
纳米
2007/11/9
文章摘要：
以钛酸丁酯乙烯吡咯烷酮为原料, 采用Ｓｏｌ－ｇｅｌ法制备了ＴｉＯ２／ＰＶＰ纳米复合材料, 采用原子力显微镜（ＡＦＭ）、红外光谱、ＸＲＤ、ＴＧＡ等测试方法分别研究了薄膜的表面形貌和材料的结构与热稳定性.
择优取向的PbTiO3玻璃陶瓷薄膜的Sol-Gel制备及结构
铁电薄膜 玻璃陶瓷 择优取向 Sol-Gel
2007/10/26
文章摘要：
采用Sol--Gel工艺制备了PbTiO3 (PT)玻璃陶瓷薄膜, 实现了常规熔融法难以达到的高PT含量. 薄膜中PT晶粒分布均匀, 晶粒大小约0.1μm, 膜中无孔洞. 采用常规热处理,可获得c轴择优取向的PT玻璃陶瓷薄膜, 而利用快速热处理技术有助于抑制PT焦绿石相的出现, 且薄膜呈现轻微的a轴择优取向.
用Sol-Gel法制备喷墨打印用BaTiO3陶瓷墨水
钛酸钡 陶瓷墨水 溶胶-凝胶 理化性能
2007/10/26
文章摘要：
用Sol-Gel法, 通过控制异丙醇钛和醋酸钡的水解速率制备了BaTiO3陶瓷墨水. 研究了该陶瓷墨水的制备工艺参数, 分散剂添加量, 导电盐添加量, pH值, 固相含量等对墨水性能的影响.用扫描电镜观察了BaTiO3墨滴打印点和单一打印层的形貌, 发现陶瓷墨滴大小均匀, 打印层表面平整. 该墨水满足连续式喷墨打印要求.
γ射线辐照-Sol-gel法制备非晶SiO2-Ag纳米复合材料
2007/7/28
期刊信息
篇名
γ射线辐照-Sol-gel法制备非晶SiO2-Ag纳米复合材料
语种
中文
撰写或编译
作者
朱英杰，钱逸泰
第一作者单位
刊物名称
科学通报
页面
1994,Vol.39
出版日期
1994年
月
日
文章标识(ISSN)
相关项目
纳米金属和合金的辐射制备,结构和性能研究