Results 61 to 70 of about 78,838 (289)
Study on Thermal Properties and Mechanical Properties of Short-cut Polyimide-Fiber Reinforced Polyphenyl Sulfone Composites [PDF]
MATEC Web of Conferences, 2019 In order to increase the thermal stability and mechanical property of PPSU, two different polyimide (PI) short cut fibers reinforced polyphenyl sulfone (PPSU) composites were prepared by melt extrusion using a threescrew extruder.
Yao Weizhou +6 more
doaj +1 more source
Accelerated hermeticity testing of biocompatible moisture barriers used for the encapsulation of implantable medical devices [PDF]
, 2019 Barrier layers for the long-term encapsulation of implantable medical devices play a crucial role in the devices’ performance and reliability. Typically, to understand the stability and predict the lifetime of barriers (therefore, the implantable devices)
Cauwe, Maarten +4 more
core +2 more sources
Advanced Functional Materials, EarlyView.Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He +5 more
wiley +1 more source
Frontiers in MaterialsThe fascinating properties of polyimide films, such as outstanding thermal stability, chemical/radiation resistance, excellent mechanical strength, and a low dielectric constant, can be further optimized by inorganic fillers, making them potential ...
Ahmad Raza Ashraf +5 more
doaj +1 more source
机车电传动, 2021 Polyimide (PI) is widely used as an important insulating material for the inverter-fed traction motors of the high-speed trains. The mixed alumina fillers were prepared by using macro, sub-micro and nano alumina particles.
Jiming GAO +5 more
doaj
Linear and crosslinked polyimide aerogels: synthesis and characterization
Journal of Materials Research and Technology, 2019 Linear and crosslinked polyimide aerogels have been synthesized by means of a simple and eco-friendly process. Water-soluble poly(amic acid), PAA, solution was produced and thermal imidization was employed. Furthermore, freeze drying was used.
Carolina Simón-Herrero +5 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Ultrathin AlOxHy interlayers between aluminum films and polymer substrates significantly improve electro‐mechanical properties of flexible thin film systems. By precisely controlling interlayer thickness using atomic layer deposition, this study identifies an optimal interlayer thickness of 5–10 nm that enhances ductility and delays cracking.
Johanna Byloff +9 more
wiley +1 more source
Semi-interpenetrating polymer network for tougher and more microcracking resistant high temperature polymers [PDF]
, 1992 This invention is a semi-interpenetrating polymer network which includes a high performance thermosetting polyimide having a nadic end group acting as a crosslinking site and a high performance linear thermoplastic polyimide. An improved high temperature
Pater, Ruth H.
core +1 more source
Gourd‐Inspired Design of Unit Cell with Multiple Gradients for Physiological‐Range Pressure Sensing
Advanced Functional Materials, EarlyView.Gourd‐shaped micro‐dome arrays with coordinated modulus, conductivity, and geometric gradients co‐optimize sensitivity and linearity in piezoresistive tactile sensors. Under pressure, a solid upper dome embeds into a porous lower dome, triggering rapid contact‐area growth and series‐to‐parallel conduction, enabling unsaturated, intensity‐resolved ...
Jiayi Xu +6 more
wiley +1 more source
Polyimide (PI) films by chemical vapor deposition (CVD): Novel design, experiments and characterization [PDF]
, 2007 Polyimide (PI) has been deposited by chemical vapor deposition (CVD) under vacuum over the past 20 years. In the early nineties, studies, experiences and characterization were mostly studied as depositions from the co-evaporation of the dianhydride and ...
Lamure, Alain +2 more
core +3 more sources