A double-sided thin steel plate shear wall filled with rigid polyurethane foam (SWR) is proposed. A quasi-static monotonic loading test and quasi-static cycling loading test on shear behavior and the energy dissipation capacity of the SWR were carried ...
Renjie Liu +4 more
doaj +1 more source
Lignosulfonate and lignosulfonate hydrolyzed under alkaline conditions were used as the polyol components in polyurethane foam formulations. Although the treatment increased hydroxyl group abundance, it did not improve the applicability of hydrolyzed ...
Katarzyna Wysocka +3 more
doaj +1 more source
Determining the Components of Foaming Agents That Can Have a Decisive Impact On Reducing the Absorption Proprieties of Rigid Polyurethane Foam Waste in Relation to Post-Foaming Waste [PDF]
Aim: The aim of this publication is to experimentally identify the components of foaming agents that may have an impact on reducing the absorbency of rigid polyurethane foam waste in relation to post-foaming waste.
Tomasz Węsierski, Oliwer Eszer
doaj +1 more source
Environmental Assessment of Bio-Oil Transformation from Thistle in the Italian Context: An LCA Study
The present study is a cradle-to-gate Life Cycle Assessment of a hypothetical production process of rigid polyurethane foam obtained from thistle seed oil, grown on the marginal soils of the Umbria region, Italy.
Tortoioli Samuele +4 more
doaj +1 more source
The method of filling the lower space of a bridge with rigid polyurethane foam (RPU foam) to reduce the traffic load along with seismic reinforcement has rarely been applied to extend the life of bridges in Japan.
Atsushi Koyama +4 more
doaj +1 more source
A review of utilization of waste polyurethane foam as lightweight aggregate in concrete
Engineered concrete mixes using industrial waste as a construction material are an enormous step towards sustainable development and financial benefits.
R. Roobankumar, M. SenthilPandian
doaj +1 more source
Membrane Wrapping for High Capacity and Rapidly Switchable Adhesives
A membrane‐wrapping mechanism enables high‐capacity, rapidly switchable adhesion by coupling suction, friction, and adhesion. Broadband performance is achieved in dry and underwater conditions, allowing fast, reversible manipulation of objects of diverse sizes and shapes, from delicate eggs and berries to flat, complex, or heavy objects. These outcomes
Yeunhee Kim +2 more
wiley +1 more source
Effect of silicone surfactant and distilled water on the structure, morphology, density, and compressive strength of polyurethane foam with utilization of castor oil [PDF]
Polyurethane (PU) foam is used almost everywhere—from packaging to insulation and construction—but its production still relies largely on petroleum-based ingredients.
Herbirowo Satrio +4 more
doaj +1 more source
Worker exposure to flame retardants in manufacturing, construction and service industries
Workers in several industries are occupationally exposed to flame retardants. This study characterizes flame retardant exposure for nine industries through air and hand wipe measures for 105 workers.
Cheryl Fairfield Estill +4 more
doaj +1 more source
Upcycling of Disposable Face Masks into Water‐Resistant and Flame Retardant Foams
Disposable mask waste is upcycled into lightweight polypropylene‐based foams with tunable porosity and composite architectures reinforced by ear‐loop fibers. The sustainable solvent‐based process enables upcycling rates of 91% and solvent recovery of >90%.
Jingjing Pan +3 more
wiley +1 more source

