Query：
学者姓名：姚燕
Refining：
Year
Type
Indexed by
Source
Complex
Co-Author
Language
Clean All
Abstract ：
In this work, the form-stable phase change material (PCM) was prepared by absorbing tetradecanol (TD) into expanded graphite (EG). Then, the obtained TD/EG was coated with graphene oxide (GO) through electrostatic self-assembly to prepare a novel composite PCM (TD/EG-GO). The morphology, phase change and thermal properties of TD/EG-GO were fully discussed. The DSC analysis shows that the TD/EG-GO composite melts at 35.2 °C with latent heat value of 189.5 J/g and freezes at 34.9 °C with latent heat value of 187.9 J/g. The thermal cycling test results reveal that the latent heat of TD/EG-GO composite decrease by less than 1% after 500 thermal cycles, indicating that the structure of GO-coated EG efficiently prevents the leakage of TD. The thermal stability and thermal conductivity of TD/EG-GO composite are also improved compared with that of uncoated TD/EG, demonstrating the multiple benefits of surface coating of GO. © 2020
Keyword ：
Graphene Graphene Heat storage Heat storage Morphology Morphology Thermal cycling Thermal cycling Thermal conductivity Thermal conductivity Graphite Graphite Latent heat Latent heat Phase change materials Phase change materials
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Chi, Bichuan , Yao, Yan , Cui, Suping et al. Preparation of graphene oxide coated tetradecanol/expanded graphite composite phase change material for thermal energy storage [J]. | Materials Letters , 2021 , 282 . |
| MLA | Chi, Bichuan et al. "Preparation of graphene oxide coated tetradecanol/expanded graphite composite phase change material for thermal energy storage" . | Materials Letters 282 (2021) . |
| APA | Chi, Bichuan , Yao, Yan , Cui, Suping , Jin, Xiaodong . Preparation of graphene oxide coated tetradecanol/expanded graphite composite phase change material for thermal energy storage . | Materials Letters , 2021 , 282 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Modified bagasse retarder (MBR) was prepared by sodium chlorite pretreatment and compound acid hydrolysis of bagasse in the presence of a catalytic amount of phosphotungstic acid. The structure was analyzed by FTIR. The influence of MBR on the cement hydration was analyzed by hydration heat, XRD and SEM. The retarding effects of MBR and sodium gluconate (SG) were compared at 20 and 50, respectively. The results showed that MBR contained hydroxyl group, carboxyl group and phosphate group, which had good adaptability to cement, exhibited better retarding performance than SG. MBR did not affect the later compressive strength of concrete, which could delay the induction period and reduce the hydration rate in accelerating period. © 2021, Editorial Office of FINE CHEMICALS. All right reserved.
Keyword ：
Cements Cements Compressive strength Compressive strength Hydration Hydration Bagasse Bagasse Sodium compounds Sodium compounds
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Qu, Haojie , Qian, Shanshan , Yao, Yan et al. Performances and mechanism analysis of modified bagasse retarder [J]. | Fine Chemicals , 2021 , 38 (2) : 426-432 . |
| MLA | Qu, Haojie et al. "Performances and mechanism analysis of modified bagasse retarder" . | Fine Chemicals 38 . 2 (2021) : 426-432 . |
| APA | Qu, Haojie , Qian, Shanshan , Yao, Yan , Wang, Ziming , Zheng, Chunyang , Liu, Xiao . Performances and mechanism analysis of modified bagasse retarder . | Fine Chemicals , 2021 , 38 (2) , 426-432 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
根据分子结构设计原理,以马来酸酐与异戊烯醇聚氧乙烯聚氧丙烯醚大单体为主要反应原料,以甲基烯丙基磺酸钠为链转移剂,合成一款减水剂。采用凝胶渗透色谱、红外光谱、核磁氢谱等测试手段获得了合成产物的分子量及分子量分布等结构参数信息,同时比较了该减水剂与普通减水剂在表面张力、对水泥颗粒吸附行为、Zeta电位、水泥净浆流动性、水泥净浆流变性能及新拌混凝土应用性能方面的差异。性能评价结果表明,该减水剂具有良好的降黏效果,本工作还分析了其降黏作用机理。
Keyword ：
减水剂 减水剂 降黏 降黏 高强混凝土 高强混凝土
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 钱珊珊 , 姚燕 , 王子明 et al. 降低高强混凝土黏度的减水剂制备与机理研究 [J]. | 材料导报 , 2021 , 35 (02) : 2046-2051 . |
| MLA | 钱珊珊 et al. "降低高强混凝土黏度的减水剂制备与机理研究" . | 材料导报 35 . 02 (2021) : 2046-2051 . |
| APA | 钱珊珊 , 姚燕 , 王子明 , 崔素萍 , 刘晓 , 郑春扬 . 降低高强混凝土黏度的减水剂制备与机理研究 . | 材料导报 , 2021 , 35 (02) , 2046-2051 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
通过亚氯酸钠预处理和在磷钨酸催化下复合酸酸解的方法改性甘蔗渣,制备出改性甘蔗渣缓凝剂(MBR),采用FTIR对其进行结构表征,通过水化热、XRD和SEM分析其对水泥水化的影响。分别在20和50℃下,对比了其与葡萄糖酸钠(SG)的缓凝效果。结果表明,MBR中含有羟基、羧基和磷酸基,与水泥的适应性良好,缓凝性能优于SG且不影响混凝土后期抗压强度,能够延缓诱导期,降低加速期的水化速率。
Keyword ：
酸解 酸解 水泥 水泥 缓凝 缓凝 甘蔗渣 甘蔗渣 建筑用化学品 建筑用化学品
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 屈浩杰 , 钱珊珊 , 姚燕 et al. 改性甘蔗渣缓凝剂的性能及机理分析 [J]. | 精细化工 , 2021 , 38 (02) : 426-432 . |
| MLA | 屈浩杰 et al. "改性甘蔗渣缓凝剂的性能及机理分析" . | 精细化工 38 . 02 (2021) : 426-432 . |
| APA | 屈浩杰 , 钱珊珊 , 姚燕 , 王子明 , 郑春扬 , 刘晓 . 改性甘蔗渣缓凝剂的性能及机理分析 . | 精细化工 , 2021 , 38 (02) , 426-432 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
改性甘蔗渣缓凝剂的性能及机理分析
Keyword ：
酸解 酸解 水泥 水泥 缓凝 缓凝 建筑用化学品 建筑用化学品 甘蔗渣 甘蔗渣
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 屈浩杰 , 钱珊珊 , 姚燕 et al. 改性甘蔗渣缓凝剂的性能及机理分析 [J]. | 屈浩杰 , 2021 , 38 (2) : 426-432 . |
| MLA | 屈浩杰 et al. "改性甘蔗渣缓凝剂的性能及机理分析" . | 屈浩杰 38 . 2 (2021) : 426-432 . |
| APA | 屈浩杰 , 钱珊珊 , 姚燕 , 王子明 , 郑春扬 , 刘晓 et al. 改性甘蔗渣缓凝剂的性能及机理分析 . | 屈浩杰 , 2021 , 38 (2) , 426-432 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
降低高强混凝土黏度的减水剂制备与机理研究
Keyword ：
降黏 降黏 减水剂 减水剂 高强混凝土 高强混凝土
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 钱珊珊 , 姚燕 , 王子明 et al. 降低高强混凝土黏度的减水剂制备与机理研究 [J]. | 钱珊珊 , 2021 , 35 (2) : 2046-2051 . |
| MLA | 钱珊珊 et al. "降低高强混凝土黏度的减水剂制备与机理研究" . | 钱珊珊 35 . 2 (2021) : 2046-2051 . |
| APA | 钱珊珊 , 姚燕 , 王子明 , 崔素萍 , 刘晓 , 郑春扬 et al. 降低高强混凝土黏度的减水剂制备与机理研究 . | 钱珊珊 , 2021 , 35 (2) , 2046-2051 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
;以异丙烯膦酸(IPPA)和异戊烯醇聚氧乙烯-聚氧丙烯醚大单体(IPEPPG)为主要反应原料,在引发剂过硫酸铵(APS)和链转移剂次亚磷酸钠(SHP)作用下,进行自由基聚合反应,合成一种聚膦酸减水剂.对不同n(IPPA):n(IPEPPG)的摩尔比、APS用量、SHP用量和不同IPEPPG的质均分子量等进行正交优化,获得制备最佳性能的工艺条件和原材料配比.并对该减水剂进行凝胶色谱,红外光谱和核磁氢谱测试获得合成产物的分子量及分子量分布等结构参数信息,同时比较了该减水剂与普通减水剂在表面张力、流体力学半径、蒙脱土表面的吸附量、水泥水化放热速率、水泥净浆流变性能及新拌混凝土应用性能方面的差异.结果 表明:该减水剂具有良好的降黏、抗泥和缓凝效果.
Keyword ：
抗泥 抗泥 降黏 降黏 缓凝 缓凝 聚膦酸减水剂 聚膦酸减水剂 混凝土 混凝土
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 钱珊珊 , 姚燕 , 王子明 et al. 聚膦酸减水剂的合成、表征及机理 [J]. | 硅酸盐学报 , 2021 , 49 (5) : 910-917 . |
| MLA | 钱珊珊 et al. "聚膦酸减水剂的合成、表征及机理" . | 硅酸盐学报 49 . 5 (2021) : 910-917 . |
| APA | 钱珊珊 , 姚燕 , 王子明 , 崔素萍 , 刘晓 , 郑春扬 . 聚膦酸减水剂的合成、表征及机理 . | 硅酸盐学报 , 2021 , 49 (5) , 910-917 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
A superplasticizer was synthesized by maleic anhydride and isoprenyl-PE-PPG according to molecular structure design principle. The molecular structure of superplasticizer was determined by Fourier transform infrared spectroscopy, 1H nuclear magnetic resonance and gel permeation chromatography, respectively. The surface tension, adsorption behavior, zeta potential, the flow behaviour of superplasticized cement paste, rheological behavior of cement pastes, and application performance in concrete have been measured. Results of evaluation on performance have showed that superplasticizer has good viscosity-reducing effect and the mechanism of superplasticizer has been analyzed. © 2021, Materials Review Magazine. All right reserved.
Keyword ：
Structural design Structural design Cements Cements Fourier transform infrared spectroscopy Fourier transform infrared spectroscopy Molecular structure Molecular structure Nuclear magnetic resonance spectroscopy Nuclear magnetic resonance spectroscopy Viscosity Viscosity Gel permeation chromatography Gel permeation chromatography High performance concrete High performance concrete
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Qian, Shanshan , Yao, Yan , Wang, Ziming et al. Preparation and Mechanism of Superplasticizer for Reducing the Viscosity of High Strength Concrete [J]. | Materials Reports , 2021 , 35 (2) : 2046-2051 . |
| MLA | Qian, Shanshan et al. "Preparation and Mechanism of Superplasticizer for Reducing the Viscosity of High Strength Concrete" . | Materials Reports 35 . 2 (2021) : 2046-2051 . |
| APA | Qian, Shanshan , Yao, Yan , Wang, Ziming , Cui, Suping , Liu, Xiao , Zheng, Chunyang . Preparation and Mechanism of Superplasticizer for Reducing the Viscosity of High Strength Concrete . | Materials Reports , 2021 , 35 (2) , 2046-2051 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The binary eutectic mixtures of fatty acid esters are promising phase change materials for energy storage application. However, the low thermal conductivity which is a common problem for organic phase change materials restricts their further and better applications. In order to solve the problem, a novel composite phase change material (CPCM) was prepared in this research by using methyl palmitate-methyl stearate (MP-MS), a typical binary eutectic mixture of fatty acid esters, as phase change material and expanded graphite (EG) as heat transfer enhancer. The heat transfer performance of MP-MS/EG CPCM was numerical simulated by finite element analysis software ABAQUS. Numerical simulation results revealed that EG could notably enhance the heat transfer performance of MP-MS eutectic mixture. The heat transfer rate and phase change reaction rate of MP-MS/EG CPCM were 14 times and 3 times that of MP-MS eutectic mixture, respectively. © 2020 Trans Tech Publications Ltd, Switzerland.
Keyword ：
Eutectics Eutectics Palmitic acid Palmitic acid Esters Esters ABAQUS ABAQUS Binary mixtures Binary mixtures Heat transfer performance Heat transfer performance Phase change materials Phase change materials Numerical models Numerical models Graphite Graphite
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Chi, Bichuan , Yao, Yan , Cui, Suping . Preparation and numerical simulation of heat transfer performance for methyl palmitate-methyl stearate binary eutectic mixture/expanded graphite composite phase change material [C] . 2020 : 920-926 . |
| MLA | Chi, Bichuan et al. "Preparation and numerical simulation of heat transfer performance for methyl palmitate-methyl stearate binary eutectic mixture/expanded graphite composite phase change material" . (2020) : 920-926 . |
| APA | Chi, Bichuan , Yao, Yan , Cui, Suping . Preparation and numerical simulation of heat transfer performance for methyl palmitate-methyl stearate binary eutectic mixture/expanded graphite composite phase change material . (2020) : 920-926 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
为研究羧酸酯单体对缓释型聚羧酸超塑化剂(PCE)缓释及其分散性能的影响,首先系统测定了不同结构的羧酸酯单体在pH=12.0的氢氧化钠溶液中水解率随反应时间的变化趋势,通过线性拟合得到羧酸酯的水解反应速率常数。以不同结构的不饱和羧酸酯作为功能单体制备缓释型聚羧酸超塑化剂,测定掺加缓释型聚羧酸超塑化剂水泥净浆流动度随时间的变化趋势。分析了羧酸酯的水解速率对超塑化剂的分散及缓释效果的影响。结果表明:丙烯酸甲酯和亚甲基丁二酸二甲酯各代替33.3%和25.0%的丙烯酸使PCE分散性能增强明显,水泥净浆流动度在2h内分别从149mm和104mm增加到223mm和212 mm;羧酸酯水解速率越快,所制备的P...
Keyword ：
净浆流动度 净浆流动度 缓释 缓释 聚羧酸超塑化剂 聚羧酸超塑化剂 水解速率 水解速率 不饱和羧酸酯 不饱和羧酸酯
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 李慧群 , 姚燕 , 王子明 et al. 羧酸酯水解速率对缓释型聚羧酸超塑化剂分散性能的影响 [J]. | 硅酸盐学报 , 2020 , 48 (02) : 246-252 . |
| MLA | 李慧群 et al. "羧酸酯水解速率对缓释型聚羧酸超塑化剂分散性能的影响" . | 硅酸盐学报 48 . 02 (2020) : 246-252 . |
| APA | 李慧群 , 姚燕 , 王子明 , 崔素萍 . 羧酸酯水解速率对缓释型聚羧酸超塑化剂分散性能的影响 . | 硅酸盐学报 , 2020 , 48 (02) , 246-252 . |
| Export to | NoteExpress RIS BibTex |
Export
| Results： |
Selected to |
| Format： |
