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学者姓名：姚燕
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摘要 ：
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。
关键词 ：
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
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| 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 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
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.
关键词 ：
Cements Cements Compressive strength Compressive strength Hydration Hydration Bagasse Bagasse Sodium compounds Sodium compounds
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| 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 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
降低高强混凝土黏度的减水剂制备与机理研究
关键词 ：
减水剂 减水剂 降黏 降黏 高强混凝土 高强混凝土
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| 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 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
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。
关键词 ：
减水剂 减水剂 降黏 降黏 高强混凝土 高强混凝土
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| 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 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
改性甘蔗渣缓凝剂的性能及机理分析
关键词 ：
建筑用化学品 建筑用化学品 水泥 水泥 甘蔗渣 甘蔗渣 缓凝 缓凝 酸解 酸解
引用：
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| 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 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
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.
关键词 ：
Cements Cements Fourier transform infrared spectroscopy Fourier transform infrared spectroscopy Gel permeation chromatography Gel permeation chromatography High performance concrete High performance concrete Molecular structure Molecular structure Nuclear magnetic resonance spectroscopy Nuclear magnetic resonance spectroscopy Structural design Structural design Viscosity Viscosity
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| 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 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
;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.
关键词 ：
抗泥 抗泥 混凝土 混凝土 缓凝 缓凝 聚膦酸减水剂 聚膦酸减水剂 降黏 降黏
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| 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 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
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
关键词 ：
Graphene Graphene Graphite Graphite Heat storage Heat storage Latent heat Latent heat Morphology Morphology Phase change materials Phase change materials Thermal conductivity Thermal conductivity Thermal cycling Thermal cycling
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| 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 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
研究了应力对混凝土气渗系数和CO_2扩散系数的影响,建立了气渗系数与CO_2扩散系数的相关性.以Fick第一定律推导的碳化深度模型为基础,建立了基于气渗系数的应力作用下混凝土碳化深度预测模型——CDep-GPL模型,并对模型进行了验证.结果表明:混凝土碳化深度的模型预测值与试验值吻合较好,该模型可用于预测应力作用下混凝土的碳化深度.
关键词 ：
气渗系数 气渗系数 CDep-GPL模型 CDep-GPL模型 CO_2扩散系数 CO_2扩散系数 碳化深度 碳化深度 混凝土碳化 混凝土碳化
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| GB/T 7714 | 唐官保 , 姚燕 , 王玲 et al. 应力作用下混凝土碳化深度预测模型 [J]. | 建筑材料学报 , 2020 , 23 (02) : 304-308 . |
| MLA | 唐官保 et al. "应力作用下混凝土碳化深度预测模型" . | 建筑材料学报 23 . 02 (2020) : 304-308 . |
| APA | 唐官保 , 姚燕 , 王玲 , 曹银 , 崔素萍 . 应力作用下混凝土碳化深度预测模型 . | 建筑材料学报 , 2020 , 23 (02) , 304-308 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The gas permeability coefficient and CO2 diffusion coefficient of concrete under load were investigated and the relationship between the aforementioned two parameters was established. Further, on the basis of the carbonation model based on Fick's first law of diffusion, a new prediction model of concrete carbonation depth using the gas permeability coefficient as the characteristic parameter was proposed and verified, and it was named CDep-GPL. The results show good consistency between the calculated values and the tested ones. The CDep-GPL model can be used to predict the carbonation depth of concrete under load. © 2020, Editorial Department of Journal of Building Materials. All right reserved.
关键词 ：
Carbonation Carbonation Concretes Concretes Forecasting Forecasting Gas permeability Gas permeability Predictive analytics Predictive analytics
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| GB/T 7714 | Tang, Guanbao , Yao, Yan , Wang, Ling et al. Prediction Model of Concrete Carbonation Depth under the Combined Actions of Stress [J]. | Journal of Building Materials , 2020 , 23 (2) : 304-308 . |
| MLA | Tang, Guanbao et al. "Prediction Model of Concrete Carbonation Depth under the Combined Actions of Stress" . | Journal of Building Materials 23 . 2 (2020) : 304-308 . |
| APA | Tang, Guanbao , Yao, Yan , Wang, Ling , Cao, Yin , Cui, Suping . Prediction Model of Concrete Carbonation Depth under the Combined Actions of Stress . | Journal of Building Materials , 2020 , 23 (2) , 304-308 . |
| 导入链接 | NoteExpress RIS BibTex |
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