Results 121 to 130 of about 315,589 (284)

Polyurethane adhesive with improved high temperature properties [PDF]

, 1977
A polyurethane resin with paste activator, capable of providing useful bond strengths over the temperature range of -184 C to 149 C, is described. The adhesive system has a pot life of over one hour.
Stuckey, J. M.
core   +1 more source

Compression properties of polymeric syntactic foam composites under cyclic loading

, 2019
Syntactic foams are composite materials frequently used in applications requiring the properties of low density and high damage tolerance. In the present work, polymer-based syntactic foams were studied under cyclic compression in order to investigate ...
Parnell, W. J., Potluri, P., Smith, M. J. A., Yousaf, Z.   +3 more
core   +1 more source

Adaptive Twisting Metamaterials

Advanced Materials, EarlyView.
This work introduces torque‐controlled twisting metamaterials as a transformative platform for adaptive crashworthiness. By combining multiscale predictive modeling with experimental validation on additively manufactured gyroids, it demonstrates tunable stiffness, collapse stress, and energy absorption.
Mattia Utzeri, Maria L. Gatto, Edoardo Mancini, Donato Orlandi, Daniele Cortis, Marco Sasso, Shanmugam Kumar   +6 more
wiley   +1 more source

Improvements of mechanical properties and specular gloss of polyurethane by modified nanocrystalline cellulose [PDF]

BioResources, 2012
In this study, the optical and mechanical properties of polyurethane were improved by modified nanocrystalline cellulose (NCC). The surface of NCC was modified by 3-glycidoxypropyltrimethoxysilane (GPTMS) and 3-methacryloxy-propyltrimethoxysilane (MPS ...
Hao Zhang, Ying She, Shuping Song, Heyu Chen, Junwen Pu   +4 more
doaj  

Ion‑Mediated Structural Engineering of Hydrogel Interfaces for Tunable Mechanical and Analyte Diffusion Properties in Electrochemical Biosensors

Advanced Materials, EarlyView.
An ion‐mediated structural engineering strategy enables versatile modulation of PVA–Alginate hydrogel microstructure. We systematically examine how different ion combinations affect hydrogel mechanical properties and analyte diffusivity. Applying this novel strategy to hydrogel as the outer membrane in an electrochemical glucose biosensor allows ...
Dongwook Lee, Soo A Kim, Beom‐Jun Shim, Yurim Lee, Tae Young Kim, Sunghyun Park, Yeontaek Lee, Hyeong Gyu Choi, Kayoung Son, Su Bin Han, Keun‐Young Yook, Seo Jung Kim, Won‐Yong Lee, Jungmok Seo, Jayoung Kim   +14 more
wiley   +1 more source

Nondestructive testing of bond integrity in foam insulation/aluminum composites [PDF]

, 1971
Nondestructive test methods are used for evaluating bond integrity of low-density polyurethane spray-on foam used as cryogenic insulation on aluminum alloy ...
Bankston, B. F., Clotfelter, W. M., Duren, P. C.   +2 more
core   +1 more source

30 kV coaxial vacuum-tight feedthrough for operation at cryogenic temperatures

, 2010
In this paper we describe the technology of building a vacuum-tight high voltage feedthrough which is able to operate at voltages up to 30 kV. The feedthrough has a coaxial structure with a grounded sheath which makes it capable to lead high voltage ...
Badhrees, I., Delaquis, S., Ereditato, A., Janos, S., Kreslo, I., Messina, M., Moser, U., Rossi, B., Zeller, M.   +8 more
core   +1 more source

3D‐Printable, Honeycomb‐Inspired Tissue‐Like Bioelectrodes for Patient‐Specific Neural Interface

Advanced Materials, EarlyView.
3D printed MRI‐compatible tissue‐like neural electrodes tailored to individual gyral patterns. This honeycomb‐inspired printable gel electrode (HiPGE) employs a bioinspired architecture with soft hydrogels, engineered to match the softness of brain tissue.
Marzia Momin, Luyi Feng, Xiaoai Chen, Salahuddin Ahmed, Basma AlMahmood, Li‐Pang Huang, Jiashu Ren, Xinyi Wang, Hyunjin Lee, Samuel R. Cramer, Nanyin Zhang, Sulin Zhang, Tao Zhou   +12 more
wiley   +1 more source

Phenolic cutter for machining foam insulation [PDF]

, 1970
Pre-pregged fiber glass is an efficient abrasive for machining polystyrene and polyurethane foams. It bonds easily to any cutter base made of aluminum, steel, or phenolic, is inexpensive, and is readily ...
Blair, T. A., Miller, A. C., Price, B. W., Stiles, W. S.   +3 more
core   +1 more source

Soft Ionic and Electronic Triboelectric Nanogenerators: Toward Attachable and Implantable Biomedical Applications

Advanced Materials, EarlyView.
This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi, Jimin Park, Won Jun Song, Soohwan An, Seonggyu Choe, Byeong‐Rak Keum, Min Young Kim, Dae Hee Hwang, Young‐Geun Park, Sung‐Won Kim, Sangyul Baik, Gwang‐Bum Im, Younghoon Lee   +12 more
wiley   +1 more source