Article
Chemistry, Multidisciplinary
Zhengdong Wang, Xiaozhuo Wang, Silong Wang, Jieyu He, Tong Zhang, Juan Wang, Guanglei Wu
Summary: This study successfully prepared novel sandwich AlN/epoxy composites with significantly enhanced dielectric breakdown strength and thermal conductivity, showing great potential for application in power electronic devices and power equipment. The optimized sandwich composite with specific layer thicknesses demonstrated high through-plane thermal conductivity and dielectric breakdown strength, making it promising for various industrial applications.
Article
Polymer Science
Yuan Jia, Juxiang Yang, Weijie Dong, Beibei Li, Zhen Liu
Summary: S-TiO2 with microspheres structure was prepared via hydrothermal process and used as a modifier in EP resin to improve dielectric properties and thermal conductivities of S-TiO2/EP composites. The reasonable content of S-TiO2 enhanced the dielectric constant without excessive increase in dielectric loss, while also improving the thermal conductivity of the composites.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Anish Khan, Madhu Puttegowda, Praveenkumara Jagadeesh, Hadi M. Marwani, Abdullah M. Asiri, A. Manikandan, Aftab Aslam Parwaz Khan, Ghulam Md Ashraf, Sanjay Mavinkere Rangappa, Suchart Siengchin
Summary: The review article summarizes previous research on polymer composites filled with nitride compounds and discusses their potential applications in electronics and thermal management. The addition of nitride compounds can enhance the mechanical, thermal, and electrical properties of the composites.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Polymer Science
William Anderson Lee Sanchez, Jia-Wun Li, Hsien-Tang Chiu, Chih-Chia Cheng, Kuo-Chan Chiou, Tzong-Ming Lee, Chih-Wei Chiu
Summary: In this study, the effects of a hybrid filler composed of zero-dimensional spherical AlN particles and two-dimensional BN flakes on the thermal conductivity of epoxy resin were investigated. The results showed that the composite exhibited a 46-fold increase in thermal conductivity with the 75 wt% loading of the AlN-BN hybrid filler, along with higher thermal stability and lower coefficient of thermal expansion compared to pure epoxy.
Article
Materials Science, Ceramics
Liangqing Wu, Daoping Xiang
Summary: A controllable and continuously oriented three-dimensional AlN skeleton was transformed from a low-cost 3D Al-containing skeleton by ice-templating and nitriding reaction sintering. AlN/epoxy composites with high thermal conductivity were obtained, and the composite containing 39.69 vol% AlN had the highest thermal conductivity of 4.29 W m(-1)·K-1, which was 21.45 times higher than that of pure epoxy. This novel approach has the advantages of low-cost, short processing time, simple operation, and repeatability, providing a new idea for developing heat-conducting polymer composites.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Composites
Bishnu Prasad Nanda, Alok Satapathy
Summary: The study focuses on the thermal and dielectric properties of a new class of epoxy-based hybrid composites. It demonstrates that incorporating boron nitride significantly enhances thermal conductivity, while the dielectric constant of the composite decreases with increasing fiber content and operating frequency. Additionally, the glass transition temperature of epoxy is improved by the inclusion of short human hair fibers.
POLYMER COMPOSITES
(2021)
Article
Polymer Science
Isaac Isarn, Francesc Ferrando, Angels Serra, Cristina Urbina
Summary: A new series of high thermal boron nitride composites were prepared and characterized by several techniques, showing that the addition of BN filler can significantly improve thermal conductivity. The curing process evolution and rheological properties of the composites were studied, indicating a positive influence of the filler on enhancing thermal conductivity.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Chemistry, Physical
Lihua Zhao, Zhijie Chen, Junwen Ren, Lingyu Yang, Yuchao Li, Zhong Wang, Wenjun Ning, Shenli Jia
Summary: This research successfully prepares a dielectric thermally conductive composite with high thermal conductivity and superb dielectric properties by incorporating microscale boron nitride microspheres and nanoscale silicon dioxide coated silicon carbide nanoparticles. By capitalizing on the merits of different particles, favorable thermal conductivity and dielectric constant are achieved without compromising the dielectric loss.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Dayou Liu, Yuqi Chen, Hong Huang, Hang Yang, Haiyun Jin
Summary: This study successfully prepared Si3N4w@SiO2 composite materials with high thermal conductivity and excellent dielectric properties, exhibiting good thermal stability and dielectric performance, showing great potential for application in electronic packaging materials.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Composites
Tong Yao, Ke Chen, Tengteng Niu, Ying Yang
Summary: In this study, epoxy/cellulose/BN composites were fabricated by ice-templated method, and the effects of frequency and thermal conductivity on dielectric breakdown characteristics were investigated. The composites showed improved thermal conductivity and breakdown time at high frequency, providing insight into designing thermal management polymers for high frequency and high voltage fields.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
Gulben Torgut, Nagihan Karaaslan Ayhan, Aslisah Acikses
Summary: The precipitation method was used to synthesize a poly(epsilon-caprolactone-copolymer-ethylene oxide) composite with lanthanum salt. The thermal and dielectric properties of the polymer were studied by incorporating different weight percentages of the salt. Characterization techniques such as Fourier Transform Infrared Spectroscopy, X-ray diffractometry, scanning electron microscopy, and thermogravimetric analysis were used. The results showed that the thermal stability of the composites was lower than that of the pure polymer, and the dielectric properties and AC conductivity increased with increasing lanthanum content. This eco-friendly and easy-to-handle method provides a promising route for polymer composites in the field of conductivity.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Multidisciplinary
Zixin Huang, Ruirui Yang, Xiangdan Zheng, Qiuran Jiang, Liying Zhang, Wanshuang Liu
Summary: In this study, researchers successfully coated boron nitride nanosheets with polydopamine and grafted them with tridecafluorooctyl trimethoxy silane, resulting in a composite material with improved miscibility and higher thermal conductivity. Additionally, the modified composite material also exhibited lower dielectric constant and dielectric loss.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Composites
Xiaoxiang He, Dan Ou, Ying Ma, Shuying Wu, Ying Chen, Yue Luo, Daming Wu
Summary: The novel forced compression method significantly improves the thermal conductivities of polymer composites by constructing a robust filler network, especially at low filler contents. The AlN/PDMS composites prepared using this method show higher thermal conductivities and good mechanical properties.
POLYMER COMPOSITES
(2021)
Article
Polymer Science
Bolin Tang, Miao Cao, Yaru Yang, Jipeng Guan, Yongbo Yao, Jie Yi, Jun Dong, Tianle Wang, Luxiang Wang
Summary: A one-step ball-milling method was used to synthesize KH550-modified hexagonal boron nitride (BN) nanofillers. The resulting BM@KH550-BN exhibited excellent dispersion stability and high yield of BN nanosheets. When used as fillers in epoxy resin, the BM@KH550-BN/epoxy nanocomposites showed significantly improved thermal conductivity, storage modulus, and glass transition temperature.
Article
Engineering, Electrical & Electronic
M. Wasim Akhtar, Jong Seok Kim, Muddassir Ali Memon, M. Yasir Khan, M. Moazam Baloch
Summary: The study showed that functionalization of MgO with APTES greatly enhanced the interface between MgO and epoxy, improving mechanical properties and thermal conductivity of the composite material.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Chemical
A. Agrawal, A. Satapathy
INTERNATIONAL POLYMER PROCESSING
(2018)
Article
Materials Science, Composites
Alok Agrawal, Alok Satapathy
POLYMER COMPOSITES
(2019)
Article
Materials Science, Composites
Alok Agrawal, Saurabh Chandrakar
POLYMER COMPOSITES
(2020)
Article
Materials Science, Composites
Virendra Rajput, Neelesh Kumar Sahu, Alok Agrawal, Gaurav Gupta
Summary: A novel hybrid composite utilizing Kota stone dust and fly ash as reinforcing phases in an epoxy matrix was developed and tested for physical and mechanical properties. The results showed that the hybrid composites exhibited better mechanical properties compared to single filler composites, although physical properties were slightly compromised by the hybridization of fillers.
POLYMER COMPOSITES
(2022)
Article
Engineering, Chemical
Alok Agrawal, Saurabh Chandraker
Summary: The study showed that incorporating hexagonal boron nitride and sisal fiber into epoxy resin composite can significantly improve thermal conductivity and slightly increase dielectric constant. Other properties such as compressive strength, hardness, glass-transition temperature, and coefficient of thermal expansion were also improved when ceramic filler and natural fiber combinations were introduced into the epoxy matrix.
POLYMER ENGINEERING AND SCIENCE
(2022)
Article
Engineering, Chemical
Satish Kumar Shejkar, Basant Agrawal, Alok Agrawal, Gaurav Gupta, Pravat Ranjan Pati
Summary: This study investigates the effect of treating micro-sized walnut shell particulates (WSP) with different concentrations of sodium hydroxide (NaOH) on the physical and mechanical properties of a newly developed epoxy composite. The results show that treating WSP with a 2-mole NaOH solution improves the properties of the composite, while treating WSP with a 4-mole NaOH solution slightly deteriorates the properties due to excessive NaOH concentration.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2023)
Article
Polymer Science
Priyank Lohiya, Alka Bani Agrawal, Alok Agrawal, Abhilash Purohit
Summary: The usability of LD slags as reinforcement material in epoxy composites was investigated. The physical, mechanical, and tribological properties of the composites were studied. The experimental results showed that the density, void content, and water intake capacity of the composites increased with LD slag loading. The tensile and flexural strength were slightly compromised, but the compressive strength increased with filler content. A forecast model based on an artificial neural network successfully predicted the sliding wear performance of the composites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Composites
Satish Kumar Shejkar, Basant Agrawal, Alok Agrawal, Gaurav Gupta
Summary: This study examines the influence of surface-modified micro-sized walnut shell particulates (WSP) on epoxy composites. It is found that the addition of WSP increases the density, void content, water intake capacity, compressive strength, and hardness of the composites, while reducing the tensile and flexural strength. The sliding wear tests reveal that the WSP content is the most significant factor for minimizing wear rate. A prediction model using an artificial neural network is proposed to forecast the sliding wear rate of the epoxy/WSP composites.
POLYMER COMPOSITES
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
Pragya Yadav, Alok Agrawal, Bhavana Ayachit, Irshad Ahmad Khan
Summary: This study focuses on the design and development of epoxy composites using blast furnace slag (BFS) and sisal fiber (SF) as hybrid filler materials. The experimental results show that the density of the material increases with BFS loading and decreases with sisal fiber loading. Void content and water intake also increase with the addition of fillers. The inclusion of BFS and sisal fiber improves the mechanical properties of the epoxy-based hybrid composites. Therefore, a hybrid combination of fillers can effectively modify the physical properties and enhance the mechanical properties of the composites, making them potential candidates for light-duty structural applications.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
Virendra Rajput, Neelesh Kumar Sahu, Alok Agrawal
Summary: This research article uses hybrid MCDM approaches, such as AHP and TOPSIS, to rank Kota stone dust filled epoxy composites and evaluate their physical and mechanical properties. The study concludes that epoxy composites with 20 wt% of Kota stone dust are the most suitable for manufacturing wind turbine blades.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
Virendra Rajput, Neelesh Kumar Sahu, Alok Agrawal
Summary: In this paper, a new class of epoxy composites with Kota stone dust as fillers has been fabricated and evaluated for various mechanical properties. The study aims to select the optimal combination of epoxy and Kota stone dust using Analytical Hierarchy Process (AHP). The results suggest that epoxy with 20 wt% of Kota stone dust is the most suitable for manufacturing partition boards.
MATERIALS TODAY-PROCEEDINGS
(2022)
Article
Multidisciplinary Sciences
S. Chandraker, J. K. Dutt, A. Agrawal, H. Roy, Rajkumar, K. Chandrakar, V. Mishra
Summary: This study developed polymeric composites using pistachio nutshells as filler material, showing potential applications in light-duty structures based on various test results.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
Alok Agrawal, Saurabh Chandraker, Abhishek Sharma
MATERIALS TODAY-PROCEEDINGS
(2020)
Proceedings Paper
Materials Science, Multidisciplinary
Alok Agrawal, Tanmay Awasthi, Dinesh Kumar Soni, Abhishek Sharma, Vivek Mishra
MATERIALS TODAY-PROCEEDINGS
(2020)
Article
Materials Science, Composites
Alok Agrawal, Alok Satapathy
COMPOSITES COMMUNICATIONS
(2017)