Query：
学者姓名：许平凡
Refining：
Year
Type
Indexed by
Source
Complex
Co-
Language
Clean All
Abstract ：
Polymer matrix composites with excellent thermal management performance have emerged as remarkable materials in the realms of microelectronic devices and wireless communication technologies. However, achieving high thermal conductivity in most composites often requires a high filling load, which will compromise other desirable properties. Herein, utilizing physical foaming and vacuum infiltration methods, we introduce a 3D honeycomb composite consisting of surface-hydroxylated hexagonal boron nitride (OH-BN) and epoxy. The 3D OH-BN honeycomb foam in the composite features a lightweight design (0.33 g/cm3), high strength (7178 times its own weight) and prominent heat transfer performance. Significantly, these composites achieve notable thermal properties, including high through-plane thermal conductivity (2.073 W m−1 K−1) and relatively low thermal resistance (0.995 °C/W) at a reduced filling load (17.2 vol%). In comparison with pure epoxy, the through-plane thermal conductivity is enhanced by an impressive 894 %, while the thermal resistance is reduced to 1/9.4 of that observed in pure epoxy. Besides, the 3D honeycomb composites combine outstanding mechanical performance, low dielectric properties and excellent insulation, underscoring their potential in the field of thermal management applications in microelectronic devices, wireless communication systems and integrated circuits. © 2024
Keyword ：
Boron nitride Boron nitride Dielectric properties of solids Dielectric properties of solids Filled polymers Filled polymers Fillers Fillers Foams Foams Heat transfer Heat transfer Honeycomb structures Honeycomb structures III-V semiconductors III-V semiconductors Nitrides Nitrides Polymer matrix composites Polymer matrix composites Temperature control Temperature control Thermal conductivity Thermal conductivity Thermal insulation Thermal insulation
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Guang , Ding, Ao , Xu, Pingfan et al. Thermal conductivity of epoxy composites containing 3D honeycomb boron nitride filler [J]. | Chemical Engineering Journal , 2024 , 489 . |
| MLA | Liu, Guang et al. "Thermal conductivity of epoxy composites containing 3D honeycomb boron nitride filler" . | Chemical Engineering Journal 489 (2024) . |
| APA | Liu, Guang , Ding, Ao , Xu, Pingfan , Zhu, Minmin , Zhang, Haizhong , Zheng, Yuying et al. Thermal conductivity of epoxy composites containing 3D honeycomb boron nitride filler . | Chemical Engineering Journal , 2024 , 489 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The photoresponsive adsorption materials are of great significance to the light controlled release performance of pollutants and the development of green regeneration of adsorption materials. A photoresponsive cellulose based imprinted adsorbent（Cell-AB-MIP）was synthesized by surface-initiates atom transfer radical polymerization （SI-ATRP） using cellulose as raw material，azobenzene derivatives as functional monomers，and the typical pesticide residues 2，4-D as template. The synthetic conditions were optimized by single factor experiment ，and the structure and performance of the material was analyzed by some characterization methods. The results show that the surface of Cell-AB-MIP contains abundant functional groups（—COOH，N=N，etc.），which have a high specific recognition effect for 2，4-D. The introduction of azobenzene group makes Cell-AB-MIP have excellent photo-induced regeneration performance. The azobenzene group on Cell-AB-MIP surface changes from trans-configuration to cisconfiguration under UV irradiation，then changing the binding affinity of adsorbent for pollutants，thus realizing green regeneration via UV-light. The desorption efficiency can reach 72. 22% in methanol medium under UV light irradiation. After 5 times of cycle，the adsorption percentage to 2，4-D still remains 83. 47%. The analysis results of SEM and EA confirm that the adsorbed pollutants can be separated from the surface of the adsorbent after UV irradiation，completing the regeneration process. © 2024 Beijing Institute of Aeronautical Materials (BIAM). All rights reserved.
Keyword ：
Adsorption Adsorption Atom transfer radical polymerization Atom transfer radical polymerization Azobenzene Azobenzene Binding energy Binding energy Cells Cells Cellulose Cellulose Cytology Cytology Irradiation Irradiation
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Luying , Qiu, Yueming , Zhang, Rui et al. Preparation and photo-regeneration properties of photo-responsive cellulose based imprinted adsorption materials [J]. | Journal of Materials Engineering , 2024 , 52 (2) : 180-189 . |
| MLA | Wang, Luying et al. "Preparation and photo-regeneration properties of photo-responsive cellulose based imprinted adsorption materials" . | Journal of Materials Engineering 52 . 2 (2024) : 180-189 . |
| APA | Wang, Luying , Qiu, Yueming , Zhang, Rui , Xu, Pingfan , Liu, Yifan , Lin, Chunxiang et al. Preparation and photo-regeneration properties of photo-responsive cellulose based imprinted adsorption materials . | Journal of Materials Engineering , 2024 , 52 (2) , 180-189 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
港航整治工程可有效维护港口航道正常使用功能，对于防范风险、优化功能有重要意义。模袋混凝土护坡工作是港口航道工程中常见的建设工艺，具有诸多应用优点，因此在河流防护工程中得到广泛应用，本文以福建某港口航道整治工程为例，探讨模袋混凝土护坡技术的施工特点及原理、分析施工过程中的技术与质量控制要点，建立科学的施工实践方案。
Keyword ：
施工设计 施工设计 模袋混凝土护坡 模袋混凝土护坡 港航整治 港航整治 质量管理 质量管理
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 陈禺涵 , 张弘鑫 , 胡炜宁 et al. 基于模袋混凝土护坡技术的港航整治工程实践方案设计 [J]. | 珠江水运 , 2024 , 3 (02) : 40-42 . |
| MLA | 陈禺涵 et al. "基于模袋混凝土护坡技术的港航整治工程实践方案设计" . | 珠江水运 3 . 02 (2024) : 40-42 . |
| APA | 陈禺涵 , 张弘鑫 , 胡炜宁 , 许平凡 . 基于模袋混凝土护坡技术的港航整治工程实践方案设计 . | 珠江水运 , 2024 , 3 (02) , 40-42 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
光响应性吸附材料对污染物的光控释放性能，对发展吸附材料的绿色再生具有重要的意义。以纤维素为原料，偶氮苯衍生物为功能单体，以典型农药残留2,4-D为模板，采用表面引发原子转移自由基聚合（SI-ATRP）制备光响应纤维素印迹吸附剂（Cell-AB-MIP）。通过单因素实验对材料的制备条件进行优选，采用多种表征手段对材料结构和性能进行分析。结果表明：Cell-AB-MIP表面含有丰富的官能团（—COOH,N=N等），对2,4-D具有较高的特异性识别作用；偶氮苯基团的引入使得Cell-AB-MIP具备优异的光再生性能。经过紫外光照射后，Cell-AB-MIP上的偶氮苯基团将从反式构型转变为顺式构型，从而改变吸附剂对污染物的吸附亲和力，实现光控条件下的清洁脱附。在甲醇介质中光照解吸效率可达72.22%，经过5次光循环后对2,4-D的吸附百分比仍可达到83.47%;SEM及EA分析结果证实了吸附剂经紫外光照射后污染物可从吸附剂表面脱离，完成吸附剂的再生过程。
Keyword ：
2 2 4-D 4-D 光响应 光响应 分子印迹 分子印迹 纤维素 纤维素 绿色再生 绿色再生
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 王璐颖 , 邱越洺 , 张睿 et al. 光响应纤维素基印迹吸附材料的制备及光再生性能 [J]. | 材料工程 , 2024 , 52 (02) : 180-189 . |
| MLA | 王璐颖 et al. "光响应纤维素基印迹吸附材料的制备及光再生性能" . | 材料工程 52 . 02 (2024) : 180-189 . |
| APA | 王璐颖 , 邱越洺 , 张睿 , 许平凡 , 刘以凡 , 林春香 et al. 光响应纤维素基印迹吸附材料的制备及光再生性能 . | 材料工程 , 2024 , 52 (02) , 180-189 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
以异佛尔酮二异氰酸酯(IPDI)为聚己二酸-对苯二甲酸丁二酯/聚乳酸(PBAT/PLA)共混物的增容剂，通过熔融共混法制备了PBAT/PLA/IPDI共混粒子并吹制得到薄膜。采用红外光谱、扫描电镜、差示扫描量热分析、拉伸试验、热重分析和水蒸气透过率测试等研究了不同含量IPDI对共混薄膜形态结构、结晶性能、力学性能、热性能和阻隔性能的影响。结果表明，IPDI的异氰酸酯基团能与PBAT和PLA发生化学反应，分散相尺寸变小，两相界面变得模糊，有效改善了共混物的相容性。随着IPDI含量的增加，共混物中PBAT的结晶度升高，薄膜的拉伸强度逐渐增大，水蒸气阻隔性能呈现先增大后减小的趋势。当IPDI质量分数为0.5%时，PBAT/PLA/IPDI薄膜的横纵向拉伸强度相较于纯PBAT/PLA薄膜分别提升了74.2%和28.6%，断裂伸长率维持在790%和244%，水蒸气透过率降低了38.2%，表现出良好的力学和水蒸气阻隔等综合性能。
Keyword ：
反应增容 反应增容 水蒸气阻隔性能 水蒸气阻隔性能 生物降解 生物降解 聚乳酸 聚乳酸 聚己二酸-对苯二甲酸丁二酯 聚己二酸-对苯二甲酸丁二酯
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 毛帅 , 龚佳荣 , 孙文涛 et al. 异佛尔酮二异氰酸酯反应增容聚己二酸-对苯二甲酸丁二酯/聚乳酸生物降解阻隔膜的结构与性能 [J]. | 高分子材料科学与工程 , 2023 , 39 (08) : 148-155 . |
| MLA | 毛帅 et al. "异佛尔酮二异氰酸酯反应增容聚己二酸-对苯二甲酸丁二酯/聚乳酸生物降解阻隔膜的结构与性能" . | 高分子材料科学与工程 39 . 08 (2023) : 148-155 . |
| APA | 毛帅 , 龚佳荣 , 孙文涛 , 宁博远 , 罗耀发 , 许平凡 et al. 异佛尔酮二异氰酸酯反应增容聚己二酸-对苯二甲酸丁二酯/聚乳酸生物降解阻隔膜的结构与性能 . | 高分子材料科学与工程 , 2023 , 39 (08) , 148-155 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Isophorone diisocyanate (IPDI) as reactive compatibilizer was introduced into poly(butylene adipate terephthalate) (PBAT)/polylactic acid (PLA) blend by melt blending and extruded into blown films. The effect of IPDI content on the phase morphology, crystallization behavior, mechanical, thermal and barrier properties of PBAT/PLA/ IPDI blended films were investigated by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), differential scanning calorimeter (DSC), universal tensile testing machine, thermogravimetric analyzer (TGA) and water permeability tester. Results demonstrate that the —NCO groups of IPDI can chemically react with PBAT and PLA to form copolymer, which reduces the particle size of PLA dispersed phase and leads to indistinct interface between the two-phase, effectively improving the interfacial compatibility between PBAT and PLA matrix. With increasing the IPDI content in PBAT/PLA/IPDI films, the crystallization ability of PBAT matrix and tensile strength increase, whilst the water vapor barrier performance increases first and then decreases. When the mass fraction of IPDI is 0.5%, compared with the pristine PBAT/PLA film, the PBAT/PLA/IPDI packaging film shows 74.2% and 28.6% enhancement in tensile strength on the transverse direction and machine direction, respectively, maintains decent breaking elongation of 790% and 244%, meanwhile, 38.2% reduction in water vapor permeability coefficient, which suggests the balanced overall mechanical and water vapor barrier properties. © 2023 Chengdu University of Science and Technology. All rights reserved.
Keyword ：
biodegradable biodegradable poly(butylene adipate terephthalate) poly(butylene adipate terephthalate) polylactic acid polylactic acid reactive compatibilization reactive compatibilization water vapor barrier property water vapor barrier property
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Mao, S. , Gong, J. , Sun, W. et al. Structure and Properties of Biodegradable Poly(butylene adipate terephthalate)/ Polylactic Acid Packaging Films with Isophorone Diisocyanate as Reactive Compatibilizer; [异佛尔酮二异氰酸酯反应增容聚己二酸-对苯二甲酸丁二酯/聚乳酸生物降解阻隔膜的结构与性能] [J]. | Polymeric Materials Science and Engineering , 2023 , 39 (8) : 148-155 . |
| MLA | Mao, S. et al. "Structure and Properties of Biodegradable Poly(butylene adipate terephthalate)/ Polylactic Acid Packaging Films with Isophorone Diisocyanate as Reactive Compatibilizer; [异佛尔酮二异氰酸酯反应增容聚己二酸-对苯二甲酸丁二酯/聚乳酸生物降解阻隔膜的结构与性能]" . | Polymeric Materials Science and Engineering 39 . 8 (2023) : 148-155 . |
| APA | Mao, S. , Gong, J. , Sun, W. , Ning, B. , Luo, Y. , Xu, P. et al. Structure and Properties of Biodegradable Poly(butylene adipate terephthalate)/ Polylactic Acid Packaging Films with Isophorone Diisocyanate as Reactive Compatibilizer; [异佛尔酮二异氰酸酯反应增容聚己二酸-对苯二甲酸丁二酯/聚乳酸生物降解阻隔膜的结构与性能] . | Polymeric Materials Science and Engineering , 2023 , 39 (8) , 148-155 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
本申请提供了一种纳米抗菌手机膜，包括膜层本体和按键部。膜层本体包括粘合层、抗震层和抗菌去油脂涂层。所述膜层本体设置延伸部，所述延伸部往手机的侧壁延伸，用于包裹手机的侧壁。按键部与手机按键的位置相对应，用于包裹手机按键；所述延伸部设置第一开口，所述第一开口的位置与所述按键部的位置相对应，所述按键部的边缘与所述延伸部连接。区别于现有技术，上述技术方案通过膜层在膜层本体设置抗菌去油脂涂层，使得手机膜表面保持清洁，避免滋生传播病菌，使用起来更卫生。此外，可实现对手机的多方位保护，还可防止手机膜与按键处贴合度低、鼓包，避免在按键处挖孔而产生的易沾灰尘使膜翘起无法贴合的问题。
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 蔡雨豪 , 饶晓琳 , 陈欣 et al. 一种纳米抗菌手机膜 : CN202222353620.6[P]. | 2022-09-05 00:00:00 . |
| MLA | 蔡雨豪 et al. "一种纳米抗菌手机膜" : CN202222353620.6. | 2022-09-05 00:00:00 . |
| APA | 蔡雨豪 , 饶晓琳 , 陈欣 , 游娜 , 许平凡 . 一种纳米抗菌手机膜 : CN202222353620.6. | 2022-09-05 00:00:00 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
本发明属于阻燃材料技术领域，更具体地是涉及一种单宁酸基单组分膨胀型阻燃剂及其制备方法和应用。以天然生物基单宁酸为碳源，磷氮二元醇为酸源，三嗪衍生物为气源，通过一定的配比关系化学接枝得到单宁酸基单组分膨胀型阻燃剂。本发明提供的单宁酸基单组分膨胀型阻燃剂磷氮元素含量高，富含苯环、三嗪环、酚羟基和端羟基等结构，既可以作为添加型阻燃剂也可以作为反应型阻燃剂，与多种有机高分子材料相容性好，在确保材料性能的前提下，对材料加工工艺条件要求低，可应用于多种有机高分子材料的高效阻燃改性。本发明提供的含有单宁酸基单组分膨胀型阻燃剂的阻燃产品种类多样，制造工艺简单，阻燃性能优异，可大范围推广应用。
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 章培昆 , 毛聪 , 王越岩 et al. 一种单宁酸基单组分膨胀型阻燃剂及其制备方法和应用 : CN202211408762.6[P]. | 2022-11-08 00:00:00 . |
| MLA | 章培昆 et al. "一种单宁酸基单组分膨胀型阻燃剂及其制备方法和应用" : CN202211408762.6. | 2022-11-08 00:00:00 . |
| APA | 章培昆 , 毛聪 , 王越岩 , 罗耀发 , 许平凡 . 一种单宁酸基单组分膨胀型阻燃剂及其制备方法和应用 : CN202211408762.6. | 2022-11-08 00:00:00 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Photocatalysis is a promising technology for removing micropollutants in water. However, developing efficient and stable catalysts remains a challenge. In this work, a novel step-scheme (S-scheme) heterojunction of WO3/SnIn4S8 (WSI) was constructed through the combined process of in situ precipitation with hydrothermal synthesis to simultaneously realize photocatalytic degradation of bisphenol A(BPA) and reduction of Cr(VI) in contaminated water. Results showed that the WSI S-scheme heterojuction has a synergistic effect for the removal of BPA and Cr(VI). An optimum case of the WSI-12% heterojunction exhibited the highest photocatalytic efficiency in the degradation of BPA under visible light, which is ca. 2.5 and 3.8 times more than the pure WO(3 )and SIS, respectively. The enhanced photocatalytic activity is attributed to the formation of the WSI S-scheme heterojunctions which facilitate the spatial separation of charge carriers and preserve strong photoredox ability. Further, the S-scheme mechanism of enhanced photocatalysis was examined by the radical-trapping experiment and ESR, and superoxide and hydroxyl radicals were determined to be the major reactive oxygen species responsible for BPA degradation and Cr(VI) reduction by WSI. This work provides a novel strategy for tailoring high-performance S-scheme heterojunctions and shows the promising application in purifying wastewater with complex pollutants.
Keyword ：
bisphenol A bisphenol A hexavalent chromium hexavalent chromium photocatalytic degradation photocatalytic degradation WO3/SnIn4S8 heterostructure WO3/SnIn4S8 heterostructure
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Xu, Pingfan , Zhang, Runqiu , Gong, Jiarong et al. S-Scheme WO3/SnIn4S8 Heterojunction for Water Purification: Enhanced Photocatalytic Performance and Mechanism [J]. | CATALYSTS , 2023 , 13 (11) . |
| MLA | Xu, Pingfan et al. "S-Scheme WO3/SnIn4S8 Heterojunction for Water Purification: Enhanced Photocatalytic Performance and Mechanism" . | CATALYSTS 13 . 11 (2023) . |
| APA | Xu, Pingfan , Zhang, Runqiu , Gong, Jiarong , Luo, Yaofa , Zhuang, Yihua , Zhang, Peikun . S-Scheme WO3/SnIn4S8 Heterojunction for Water Purification: Enhanced Photocatalytic Performance and Mechanism . | CATALYSTS , 2023 , 13 (11) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
It is critical to design and synthesize superior metal-free PMS catalysts, particularly to optimize the interaction between non-metallic heteroatoms and biochar, facilitating electron conduction and the generation of reactive oxygen species. Hence, this work presented a feasible synthetic strategy for anchoring phosphorus on in-situ nitrogen-doped biochar via ball milling at room temperature. Mechanical forces triggered the dehydration reaction between phosphoric acid and C-OH bonds, forming C-O-P bonds. In particular, the obtained N and P codoped biochar (NPB) showed excellent catalytic activity. The reaction and removal rate of diclofenac sodium (DS) in the NPB/PMS system were 0.3974 min(-1) and 90.08 % (only 10 min), respectively, significantly higher than those in the in-situ nitrogen-doped biochar/PMS system. The impressive catalytic efficiency was attributed to the coupling effect of high-efficiency adsorption and exceptional electron transfer capabilities. Anchoring P into the carbon structure effectively expedited the electron transfer from adsorbed DS molecules to metastable PMS complexes via the carbon-bridge effect, ultimately leading to DS degradation. The C=O groups, pyridinic N, graphitic N, and defect sites were possible active sites for PMS activation. GC/MS identified the potential degradation paths of DS, but the toxicity of DS and its intermediates was noteworthy. Furthermore, the DS degradation efficiency of the NPB/PMS system was little hampered by pH (2.95-9.07), anions, humic acid, and actual water, suggesting its application potential in real-world wastewater. Overall, this study paves a new way for constructing effective N and P co-doped non-metallic PMS catalysts, which may be expanded to other carbon materials to fulfil the unique demands of various applications.
Keyword ：
Ball milling Ball milling Electron transfer Electron transfer Fish scale Fish scale N and P co-doped biochar N and P co-doped biochar Peroxymonosulfate Peroxymonosulfate
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Xie, Jia , Xu, Pingfan , Liu, Minghua et al. Anchoring phosphorus on in-situ nitrogen-doped biochar by mechanical milling for promoted electron transfer from diclofenac sodium to peroxymonosulfate [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2022 , 301 . |
| MLA | Xie, Jia et al. "Anchoring phosphorus on in-situ nitrogen-doped biochar by mechanical milling for promoted electron transfer from diclofenac sodium to peroxymonosulfate" . | SEPARATION AND PURIFICATION TECHNOLOGY 301 (2022) . |
| APA | Xie, Jia , Xu, Pingfan , Liu, Minghua , Liu, Yanling , Zhu, Lang , Yu, Fangxia et al. Anchoring phosphorus on in-situ nitrogen-doped biochar by mechanical milling for promoted electron transfer from diclofenac sodium to peroxymonosulfate . | SEPARATION AND PURIFICATION TECHNOLOGY , 2022 , 301 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
