Results 31 to 40 of about 4,082,528 (407)

Main-Chain Benzoxazines Containing an Erythritol Acetal Structure: Thermal and Degradation Properties

Molecules, 2023
In this paper, the bio-based raw material erythritol was used to introduce an acetal structure into the benzoxazine resins. The benzoxazine-based resins containing an erythritol acetal structure could be degraded in an acidic solution and were ...
Huili Yang, Yanqin Du, Guangshe Zhang, Ling Han, Longgui Zhang, Riwei Xu   +5 more
doaj   +1 more source

Reconstruction of the Microstructure of Cyanate Ester Resin by Using Prepared Cyanate Ester Resin Nanoparticles and Analysis of the Curing Kinetics Using the Avrami Equation of Phase Change

Applied Sciences, 2019
Bisphenol A dicyanate (BADCy) resin nanoparticles were synthesized by precipitation polymerization and used to modulate the microstructure of the BADCy resin matrix. A microscopic mechanism model was used to characterize the curing process of BADCy resin
Hongtao Cao, Beijun Liu, Yiwen Ye, Yunfang Liu, Peng Li   +4 more
doaj   +1 more source

Metal‐Organic Framework Derived Multidimensional Carbon/Multifluorination Epoxy Nanocomposite with Electromagnetic Wave Absorption, Environmentally Adaptive, and Blue Energy Harvesting

Small Structures, 2023
Bimetallic metal−organic framework (MOF)‐derived multidimensional composites have garnered tremendous attention in electromagnetic wave absorption owing to their remarkable attenuation capacity.
Kun Li, Liuwenlin Han, Junying Zhang, Jue Cheng   +3 more
doaj   +1 more source

3D-Printed Carbon Fiber Reinforced Polymer Composites: A Systematic Review

Journal of Composites Science, 2020
Fiber reinforced composites offer exceptional directional mechanical properties, and combining their advantages with the capability of 3D printing has resulted in many innovative research fronts.
Seyed Hamid Reza Sanei, D. Popescu
semanticscholar   +1 more source

Optical Density Method of Radial Structure of PAN-based Pre-oxidized Fibers

Cailiao gongcheng, 2017
According to the radial distribution characteristics of PAN pre-oxidized fiber, the optical density method which can quantitatively characterize the radial structure of pre-oxidized PAN fiber is established, taking advantage of the light-absorbing of PAN
ZHONG Shan, XU Fan, LEI Shuai, WU Shuai, XU Liang-hua   +4 more
doaj   +1 more source

Modulation of metal species as control point for Ni-catalyzed stereodivergent semihydrogenation of alkynes with water

Nature Communications, 2023
Generally, transition metal-catalyzed stereodivergent transfer semihydrogenation of alkynes realized regulation of stereoselectivity by a Z to E isomerization process.
Yuanqi Wu, Yuhui Ao, Zhiming Li, Chunhui Liu, Jinbo Zhao, Wenyu Gao, Xuemeng Li, Hui Wang, Yongsheng Liu, Yu Liu   +9 more
doaj   +1 more source

Flexible, Porous, and Metal–Heteroatom-Doped Carbon Nanofibers as Efficient ORR Electrocatalysts for Zn–Air Battery

Nano-Micro Letters, 2019
Developing an efficient and durable oxygen reduction electrocatalyst is critical for clean-energy technology, such as fuel cells and metal–air batteries.
Qijian Niu, Binling Chen, Junxia Guo, Jun Nie, Xindong Guo, Guiping Ma   +5 more
doaj   +1 more source

Effect of Process Parameters on Tensile Mechanical Properties of 3D Printing Continuous Carbon Fiber-Reinforced PLA Composites

Materials, 2020
Three-dimensional (3D) printing continuous carbon fiber-reinforced polylactic acid (PLA) composites offer excellent tensile mechanical properties. The present study aimed to research the effect of process parameters on the tensile mechanical properties ...
Hao Dou, Yunyong Cheng, Wen-guang Ye, Dinghua Zhang, Junjie Li, Zhoujun Miao, S. Rudykh   +6 more
semanticscholar   +1 more source

Degradation Behavior of Thermal Stabilized Polyacrylonitrile Fibers

Cailiao gongcheng, 2017
In the temperature range of 300-800℃, 40%-50% of the mass lost during the processing of polyacrylonitrile based carbon fiber (PANCF). Understanding the degradation behavior will be valuable in understanding the formation mechanism of pseudo-graphite ...
LEI Shuai, ZHANG Xiao, ZHONG Shan, LIU Zheng-bo, CAO Wei-yu, XU Liang-hua   +5 more
doaj   +1 more source

Performance of 3D-Printed Continuous-Carbon-Fiber-Reinforced Plastics with Pressure

Materials, 2020
Fused Deposition Modeling (FDM) has been investigated as a low-cost manufacturing method for fiber-reinforced composites. The traditional and mature technology for manufacturing continuous-carbon-fiber-reinforced plastics is Automated Fiber Placement ...
Jun Zhang, Zude Zhou, Fan Zhang, Yuegang Tan, Yiwen Tu, Baoju Yang   +5 more
semanticscholar   +1 more source