Results 61 to 70 of about 318,803 (303)
Material Strength in Polymer Shape Deposition Manufacturing [PDF]
, 1998 Shape Deposition Manufacturing (SDM) is a layered manufacturing process involving an iterative combination of material addition and material removal. Polymer SDM processes have used castable thermoset resins to build a variety of parts. The strength of
Kietzman, J. W., Prinz, F. B.
core +2 more sources
Advanced Functional Materials, EarlyView.Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco +7 more
wiley +1 more source
Oxidation Behavior and Decomposition Kinetics of Mixed-Waste Biomass Material
BioResources, 2022 In Taiwan, approximately 379,000 automobiles and 588,000 motorcycles were recycled in 2019. Rigid polyurethane foam is one of the principal components of auto shredder residue. The amount of rigid polyurethane foam from the recycling of waste vehicles is
Po-Heng Lin +4 more
doaj +2 more sources
Active Auxetic Heel Support for Achilles Tendon Therapy [PDF]
, 2018 The Achilles tendon, which stretches from the calf to the ankle, can be injured due to repeated daily activities or overstretching. In severe cases a tear in the tendon can prevent athletes from performing in games as well as individuals from completing ...
Hinrichs, Anna +3 more
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Advanced Functional Materials, EarlyView.ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim +6 more
wiley +1 more source
Statistical validation in process capability for a high pressure flexible polyurethane foam pouring machine [PDF]
, 2007 Includes bibliographical ...
Ketter, Kevin M.
core
Effects of Molecular Designs and Double‐Network Morphologies for Bioadhesive Semiconductors
Advanced Functional Materials, EarlyView.This study establishes molecular‐to‐mesoscale design rules for bioadhesive semiconducting polymers (BASCs). It identifies how side‐chain length, double‐network formation, and film thickness modulate adhesion strength and electronic performance, providing insight into the rational design of intrinsically adhesive semiconductors for stable and efficient ...
Zhichang Liu +8 more
wiley +1 more source
Fluorine containing polyurethane [PDF]
, 1969 A polyurethane polymer prepared by reacting a hydroxy-terminated polyformal with an organic diisocyanate is ...
Trischler, F. D.
core +1 more source
Phase separation phenomena during the formation of asymmetric membranes [PDF]
, 1977 The formation of membranes from two systems has been studied. In the system polyurethane-dimethylformamide-water, the mechanism for the formation of the sponge-like structure proves to be a liquid-liquid phase separation with nucleation and growth of the
Koenhen, D.M. +2 more
core +4 more sources
Advanced Functional Materials, EarlyView.Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley +1 more source