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学者姓名：孙诗兵
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摘要 ：
Isophorone diisocyanate (IPDI) was encapsulated successfully within double-layered shells, and final microcapsules showed outstanding self-healing functions in cement paste. The well-dispersed microcapsules had a diameter of 347.0 +/- 103.4 mu m, shell thickness of 3.1 +/- 0.4 mu m, and core fraction around 74.8% +/- 1.9% by weight. The diameters of microcapsules were adjustable by varying agitation rates. The beginning weight-loss temperature of microcapsules was 200 degrees C, implying good thermal stability. The final microcapsules affected slightly the workability and setting time of fresh self-healing cement paste. Although the mechanical strength of hardened self-healing cement paste was decreased with the increase of microcapsule concentrations, the open porosity was improved obviously from 33.5% (control samples) to 31.8% when 5.0% by weight of microcapsules was introduced. The interfaces of microcapsules were compatible enough with cement paste without obvious delamination. Especially, the self-healing cement paste showed outstanding self-healing functions in open air when 10.0% by weight of microcapsules was introduced. (C) 2021 American Society of Civil Engineers.
关键词 ：
Isocyanates Isocyanates Microcapsules Microcapsules One-component One-component Self-healing cement paste Self-healing cement paste
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| GB/T 7714 | Dawei, Sun , Wenxu, Ma , Jikun, Ma et al. Workability and Crack Recovery Performance Investigation of IPDI Microcapsules-Based Self-Healing Cement Paste [J]. | JOURNAL OF MATERIALS IN CIVIL ENGINEERING , 2021 , 33 (7) . |
| MLA | Dawei, Sun et al. "Workability and Crack Recovery Performance Investigation of IPDI Microcapsules-Based Self-Healing Cement Paste" . | JOURNAL OF MATERIALS IN CIVIL ENGINEERING 33 . 7 (2021) . |
| APA | Dawei, Sun , Wenxu, Ma , Jikun, Ma , Qianjin, Mao , Mingzhang, Lan , Ziming, Wang et al. Workability and Crack Recovery Performance Investigation of IPDI Microcapsules-Based Self-Healing Cement Paste . | JOURNAL OF MATERIALS IN CIVIL ENGINEERING , 2021 , 33 (7) . |
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摘要 ：
海洋工程与陆地工程相比面临着高温、高湿、高盐雾、强腐蚀、太阳辐照强烈、台风频发、海水冲刷等特殊的海洋环境气候特征。项目针对海洋气候特征、建筑功能和海岛防御需求,通过研发海工混凝土及其关键材料、岛礁适应型多功能墙体材料及制品,研究功能性防护建筑材料技术和应用,建立岛礁复杂气候条件下典型功能材料环境适应性评价技术等,研制出具有安全、节能、抗海洋环境侵蚀、高耐久性、雷达波吸收与保护等功能的新型建筑功能材料,满足了岛礁设施在建筑使用寿命、建筑功能、水下工程防污防腐等方面的特殊需求。
关键词 ：
功能材料 功能材料 岛礁工程 岛礁工程 抗海洋环境侵蚀 抗海洋环境侵蚀 评价技术 评价技术 雷达波吸收 雷达波吸收 高耐久性 高耐久性
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| GB/T 7714 | 郅晓 , 蹇守卫 , 孙诗兵 et al. 岛礁工程用功能材料关键制备技术研究与应用 [J]. | 建设科技 , 2021 , (13) : 133-135,139 . |
| MLA | 郅晓 et al. "岛礁工程用功能材料关键制备技术研究与应用" . | 建设科技 13 (2021) : 133-135,139 . |
| APA | 郅晓 , 蹇守卫 , 孙诗兵 , 潘华 , 冀志江 , 吴浩 et al. 岛礁工程用功能材料关键制备技术研究与应用 . | 建设科技 , 2021 , (13) , 133-135,139 . |
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摘要 ：
Cement based materials are especially vulnerable to serious temperature changes in saline land or marine environments, resulting in the degradation of structures and properties. As the main binding components in cement based materials, the investigation of the C−S−H gel structure and water molecules behaviors enabled the detail damage mechanism of cement-based material under different temperatures. In this study, C−S−H gel models were successfully constructed with the final chemical formula of (CaO)1.65(SiO2)(H2O)1.79. Systematical research works were performed on the structures and properties of both C−S−H gel and water molecules in different local environments by molecular dynamics (MD) under temperatures ranging from 100 K to 500 K. Subsequently, the time correlation function (TCF) and mean square displacement (MSD) methods were introduced to explore the dynamic properties of various chemical bonds. The volume expansion of C−S−H gel under higher temperatures resulted from stretched bond length between silicon atoms and oxygen atoms, and variation of corresponding bond angles. In addition, higher temperatures promoted the prolonged hydrogen bond length, thus reduced the number of hydrogen bond. Moreover, the polarization of water molecules was weakened gradually under higher temperatures, but water molecules’ orientation fluctuated obviously along the out of plane directions of interlayer region. Additionally, MSD results revealed that water molecules showed temperature dependent diffusion behaviors in different chemical environments. © 2020 Elsevier Ltd
关键词 ：
Bond length Bond length Bond strength (chemical) Bond strength (chemical) Calcium oxide Calcium oxide Cements Cements Degradation Degradation Hydrogen bonds Hydrogen bonds Molecular dynamics Molecular dynamics Molecules Molecules Silica Silica Silicon oxides Silicon oxides
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| GB/T 7714 | Sun, Dawei , Wang, Yali , Ma, Wenxu et al. C−S−H gel structure and water molecules behaviors under different chemical environments in a range of temperatures [J]. | Materials Today Communications , 2021 , 26 . |
| MLA | Sun, Dawei et al. "C−S−H gel structure and water molecules behaviors under different chemical environments in a range of temperatures" . | Materials Today Communications 26 (2021) . |
| APA | Sun, Dawei , Wang, Yali , Ma, Wenxu , Lan, Mingzhang , Wang, Ziming , Sun, Shibing et al. C−S−H gel structure and water molecules behaviors under different chemical environments in a range of temperatures . | Materials Today Communications , 2021 , 26 . |
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摘要 ：
In this work, a novel intumescent flame retardant (IFR) system was fabricated by the introduction of chitin as a green charring agent, ammonium polyphosphate (APP) as the acid source, and melamine (MEL) as the gas source. The obtained chitin-based IFR was then incorporated into a polylactic acid (PLA) matrix using melt compounding. The fire resistance of PLA/chitin composites was investigated via the limiting oxygen index (LOI), UL-94 vertical burning, and cone calorimeter (CONE) tests. The results demonstrated that the combination of 10%APP, 5%chitin and 5%MEL could result in a 26.0% LOI, a V-0 rating after UL and a 51.2% reduction in the peak heat release rate during the CONE test. Based on the mechanism analysis from both the morphology and the chemical structure of the char, it was suggested that chitin was a promising candidate as a charring agent for chitin reacted with APP and MEL with the formation of an intumescent layer on the surface.
关键词 ：
chitin chitin flame retardant flame retardant mechanism mechanism polylactic acid polylactic acid
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| GB/T 7714 | Jin, Xiaodong , Cui, Suping , Sun, Shibing et al. The Preparation and Characterization of Polylactic Acid Composites with Chitin-Based Intumescent Flame Retardants [J]. | POLYMERS , 2021 , 13 (20) . |
| MLA | Jin, Xiaodong et al. "The Preparation and Characterization of Polylactic Acid Composites with Chitin-Based Intumescent Flame Retardants" . | POLYMERS 13 . 20 (2021) . |
| APA | Jin, Xiaodong , Cui, Suping , Sun, Shibing , Sun, Jun , Zhang, Sheng . The Preparation and Characterization of Polylactic Acid Composites with Chitin-Based Intumescent Flame Retardants . | POLYMERS , 2021 , 13 (20) . |
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摘要 ：
本发明公开了一种屋面防水保温板及制备方法，属于建筑制品技术领域；其自上至下依次包括：瓦型板、框架和保护板，框架内设有保温层；瓦型板包括瓦型混凝土层，瓦型混凝土层的底部平面设有防水层和预埋有防水件，瓦型混凝土层内设有增强钢筋；框架包括边框和连接件，边框与防水件相连，边框通过连接件与屋面结构相连。本发明通过工厂化预制屋面防水保温板，工程现场装配，美观耐久，刚性防水与柔性防水结合，有效避免了保温板上下面层之间的冷桥效应，屋面防水保温板与屋面结构连接牢靠，解决了传统施工工序繁杂的问题，建造成本低，建造质量和工效显著提高。
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| GB/T 7714 | 吕锋 , 孙诗兵 , 田英良 et al. 一种屋面防水保温板及制备方法 : CN202010709407.7[P]. | 2020-07-22 . |
| MLA | 吕锋 et al. "一种屋面防水保温板及制备方法" : CN202010709407.7. | 2020-07-22 . |
| APA | 吕锋 , 孙诗兵 , 田英良 , 金晓冬 , 吕瑞峰 . 一种屋面防水保温板及制备方法 : CN202010709407.7. | 2020-07-22 . |
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摘要 ：
对拉压不同模拉伸硬化(THDM)模型矩形梁进行分析,推导了弯矩方程,其可以退化为弹性(E)、弹塑性(EP)、弹性硬化(EH)、拉压不同模弹性(DM)、拉压同模拉伸硬化(THSM)模型矩形梁弯矩方程.用ABAQUS模拟不同模型的四点弯曲试验,THDM模型挠度与玻璃纤维掺量为5％ 的GRC试验挠度最接近.相同最大拉应力对应的THDM模型的弯矩大于E模型的弯矩.
关键词 ：
拉压不同模 拉压不同模 玻璃纤维增强水泥(GRC) 玻璃纤维增强水泥(GRC) 拉伸硬化 拉伸硬化 弯曲性能 弯曲性能 矩形梁 矩形梁
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| GB/T 7714 | 司国栋 , 吕锋 , 孙诗兵 et al. 拉压不同模拉伸硬化GRC矩形梁弯曲性能研究 [J]. | 硅酸盐通报 , 2020 , 39 (7) : 2092-2098 . |
| MLA | 司国栋 et al. "拉压不同模拉伸硬化GRC矩形梁弯曲性能研究" . | 硅酸盐通报 39 . 7 (2020) : 2092-2098 . |
| APA | 司国栋 , 吕锋 , 孙诗兵 , 田英良 , 李欣 , 金晓冬 . 拉压不同模拉伸硬化GRC矩形梁弯曲性能研究 . | 硅酸盐通报 , 2020 , 39 (7) , 2092-2098 . |
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摘要 ：
现代社会需要具有工程伦理素养和管理能力的新工科工程专业人才。本文介绍了在国家工程教育认证背景下,北京工业大学材料类专业的培养目标,以"资源节约和环境友好"为特色的课程体系,以及在专业课程中阶梯式的工程伦理教育,以培养学生的工程伦理意识、工程伦理规范认知以及工程决策能力。从新生研讨课、学科基础必修、专业选修理论与实践课程、毕业设计,四年不断线的阶梯式连续工程伦理教育,充分挖掘课程思政元素,将"材料、资源、环境协调发展"理念贯穿于整个培养过程,对培养学生的"意识和责任"起到重要作用。
关键词 ：
工程伦理 工程伦理 工程人才培养 工程人才培养 材料类专业 材料类专业 教育改革 教育改革
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| GB/T 7714 | 毛倩瑾 , 崔素萍 , 孙诗兵 et al. 材料类本科专业工程伦理教育体系的阶梯式设计与实践 [J]. | 教育教学论坛 , 2020 , (49) : 137-139 . |
| MLA | 毛倩瑾 et al. "材料类本科专业工程伦理教育体系的阶梯式设计与实践" . | 教育教学论坛 49 (2020) : 137-139 . |
| APA | 毛倩瑾 , 崔素萍 , 孙诗兵 , 吕锋 , 马晓宇 . 材料类本科专业工程伦理教育体系的阶梯式设计与实践 . | 教育教学论坛 , 2020 , (49) , 137-139 . |
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摘要 ：
本文概述了特种玻璃应用领域与其在国民经济建设中的作用,简要回顾了我国信息显示特种玻璃发展历程,在“十四五”(2021~2025年)来临之前,对特种玻璃品种、生产与加工技术的创新发展提出一些新的思考。认为应继续加大对特种玻璃新品种研发,加大玻璃制造技术与加工技术的创新与变革,朝着功能化、高质化、环保化方向发展,实现特种玻璃产业的可持续发展。
关键词 ：
技术的创新 技术的创新 玻璃新品种 玻璃新品种 特种玻璃 特种玻璃 环保化 环保化 高质化 高质化 玻璃制造 玻璃制造 创新与变革 创新与变革 可持续发展 可持续发展
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| GB/T 7714 | 田英良 , 王克宁 , 胡睿 et al. 我国“十四五”特种玻璃技术创新发展思考(下) [J]. | 建筑玻璃与工业玻璃 , 2020 , (10) : 2-7 . |
| MLA | 田英良 et al. "我国“十四五”特种玻璃技术创新发展思考(下)" . | 建筑玻璃与工业玻璃 10 (2020) : 2-7 . |
| APA | 田英良 , 王克宁 , 胡睿 , 赵志永 , 孙诗兵 , 李建峰 . 我国“十四五”特种玻璃技术创新发展思考(下) . | 建筑玻璃与工业玻璃 , 2020 , (10) , 2-7 . |
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摘要 ：
利用有限元软件对真空玻璃在大气压荷载下的受力进行模拟分析,可以得到详细直观的受力结果,弥补了理论公式难以准确得到真空玻璃受力情况的缺点,更好地为真空玻璃的应用提供理论数据。文章利用ANSYS有限元软件模拟分析了无机支撑柱的真空玻璃,研究封接边缘受力及其对真空玻璃受力的影响。结果表明:真空玻璃受到的压力由支撑柱和封边共同承担,封边区域既有压力也有拉力;封边对第1、2圈支撑柱的影响最大;将位移最大的第2圈支撑柱的弹性模量增大,甚至采用不同于无机支柱的刚性支柱,可以减小真空玻璃在大气压下的最大位移;在变形允许的范围内,真空玻璃的支撑柱的高度可以适当增加。
关键词 ：
无机支柱真空玻璃 无机支柱真空玻璃 有限元分析 有限元分析 受力 受力 大气压 大气压 封接边缘 封接边缘
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| GB/T 7714 | 刘敏 , 孙诗兵 , 吕锋 et al. 无机支柱真空玻璃的封接边缘受力分析 [J]. | 山东建筑大学学报 , 2020 , 35 (01) : 50-57 . |
| MLA | 刘敏 et al. "无机支柱真空玻璃的封接边缘受力分析" . | 山东建筑大学学报 35 . 01 (2020) : 50-57 . |
| APA | 刘敏 , 孙诗兵 , 吕锋 , 李要辉 , 王晋珍 . 无机支柱真空玻璃的封接边缘受力分析 . | 山东建筑大学学报 , 2020 , 35 (01) , 50-57 . |
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摘要 ：
Different heating treatments with the variation of heating rates, holding temperatures and holding time were used to simulate the LTPS procedure. The experimental results show that the reheating shrinkage rates of glass substrates are rarely changed with increasing the heating rate, but strongly enhanced by raising the holding temperature and time, which shows that the reheating shrinkage of glass is closely related to heat treatment and structural relaxation. The production process of glass is critical to the reheating shrinkage of glass.
关键词 ：
glass substrates glass substrates low temperature ploy-silicon(LTPS) low temperature ploy-silicon(LTPS) reheating shrinkage rate reheating shrinkage rate structural relaxation structural relaxation
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| GB/T 7714 | Wang, Weilai , Tian, Yingliang , Wang, Wei et al. Influencing Factors of Reheating Shrinkage Rate of Glass Substrate on LTPS Process [J]. | JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION , 2020 , 35 (4) : 682-685 . |
| MLA | Wang, Weilai et al. "Influencing Factors of Reheating Shrinkage Rate of Glass Substrate on LTPS Process" . | JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION 35 . 4 (2020) : 682-685 . |
| APA | Wang, Weilai , Tian, Yingliang , Wang, Wei , Liu, Yaru , Sun, Shibing , Lu, Feng et al. Influencing Factors of Reheating Shrinkage Rate of Glass Substrate on LTPS Process . | JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION , 2020 , 35 (4) , 682-685 . |
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