Results 51 to 60 of about 1,400,800 (285)

Effects of Hot Pressing Temperature and Pressure on Dielectric Properties of Aramid Insulating Paper

Energies, 2022
The hot pressing parameters and fiber ratio have an important influence on the dielectric properties of aramid insulating paper. In order to deeply explore its influence and the mechanism behind it, aramid insulating papers were made with different hot ...
Yuanxin Yao, Meng Huang, Jie Ma, Yanxiao Su, Sheng Shi, Chunhe Wang   +5 more
doaj   +1 more source

Investigation of the failure characteristics of fissure tunnels under dynamic and static combinations

Deep Underground Science and Engineering, EarlyView.
This article aims to investigate the dynamic fracture response of fractured tunnel models under zero geological stress through physical experiments and numerical simulations. It further simulates the dynamic fracture characteristics of fractured tunnel models under geological stress ranging from 0 to 2.5 MPa using the numerical software AUTODYN ...
Peng Ying, Yu Ying, Xiaohan Li, Han Zhao, Kewei Yu, Zheming Zhu, Lei Zhou, Xibin Li   +7 more
wiley   +1 more source

Nano-structure of Ag/PANI on surface of aramid fabric and electromagnetic shielding performance of fabric

Cailiao gongcheng, 2023
The development of materials with high electromagnetic shielding effectiveness is of great significance for reducing electromagnetic interference and electromagnetic radiation hazards.Para-aramid fabric was used as the matrix material, and the Ag/PANI ...
LIU Maochen, DONG Jie, ZHAO Xin, TENG Cuiqing   +3 more
doaj   +1 more source

Partial carbonization of aramid fibers

Journal of Polymer Science Part B: Polymer Physics, 1994
AbstractHeat treatment of aramid fiber was conducted in the temperature range 300–710°C nominally for 10 and 30 s in both static air and flowing nitrogen atmosphere. Crystallinity, crystal orientation, and crystallite size were determined using x‐ray diffraction.
Quichen Zhang, Ying Liang, Steven B. Warner   +2 more
openaire   +1 more source

All‐Biomass Tough Aerogel Fiber for Super Thermal Insulating Textile

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Here, an all‐biomass core‐shell structural aerogel fiber with high mechanical strength and exceptional thermal management performance is fabricated using coaxial wet‐spinning. The improvements in mechanical properties are discussed, the thermal insulation performance is evaluated at both high and low temperatures through experimental tests and ...
Yiling Shi, Lele Li, Jianghui Zhao, Xianhong Zheng, Zihao Feng, Jianying Huang, Zhi Liu, Yuekun Lai   +7 more
wiley   +1 more source

Influence of Hydrolytic and Chemical Treatment on the Mechanical Properties of Aramid and Copolyaramid Fibers [PDF]

, 1998
Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence
Abu Obaid, A., Hinrichsen, G., Prabawa, A.B., Springer, H.   +3 more
core   +1 more source

Electronic jelly: Engineering the mechanics of hydrogels for flexible electronics

FlexMat, EarlyView.
By unifying mechanical reinforcement strategies—double networks, structural ordering, and dynamic interactions—this review demonstrates how engineered hydrogels can transcend their fragility to achieve the strength, toughness, and reliability required for flexible electronics, including wearable sensors, energy devices, and soft robotic systems ...
Tianfu Zheng, Chongling Cheng, Dayang Wang   +2 more
wiley   +1 more source

Study of Aramid Fiber/Polychloroprene Recycling Process by Thermal Degradation

Journal of Aerospace Technology and Management, 2016
Aramid fiber is an important polymer applied as reinforcement in high-performance composites, which, due its exceptional properties, becomes an excellent impact absorption material.
Igor Dabkiewicz, Ítalo Vinicius Soares Silva, Jossano Saldanha Marcuzzo, Rita de Cassia Mendonça Sales Contini   +3 more
doaj   +3 more sources

Exploring Thermal and Mechanical Strains During Laying Down Process in Fused Filament Fabrication

Macromolecular Materials and Engineering, EarlyView.
This study analyzes strain evolution and thermal behavior during FFF of PLA using strain gauges and infrared imaging. Microstrain levels depend on printing conditions, with adhesion‐induced compression during cooling and peak strains in early layers. Microtomography shows minimal porosity, while thermal imaging reveals rapid heat penetration, strong ...
Boubakeur Mecheri, Jaianth Vijayakumar, Elodie Boller, Sofiane Guessasma   +3 more
wiley   +1 more source

Effect of hybrid ratio on mechanical properties of carbon/aramid hybrid fiber multi-layered biaxial weft knitted fabric reinforced composites

Cailiao gongcheng, 2019
Carbon/aramid fiber hybrid multi-layered biaxial weft knitted fabric was prepared in term of intraply hybridization. The mechanical properties and effect of hybrid ratio on mechanical properties were studied.
QI Ye-xiong, JIANG Ya-ming, LI Jia-lu
doaj