Results 11 to 20 of about 15,336 (245)

The use of polyurethane foam waste resulting from the technological process of insulation of refrigeration enclosures in obtaining constructions panels with sound-absorbing and thermally insulating properties [PDF]

open access: yesMATEC Web of Conferences, 2021
Refrigerated enclosures - refrigerators, refrigerated units, vans for transporting perishable goods are thermally insulated with polyurethane foam. The insulation process involves the pressure injection of the component reactants into the spaces to be ...
Marin Laurentiu
doaj   +1 more source

Oxidation Behavior and Decomposition Kinetics of Mixed-Waste Biomass Material

open access: yesBioResources, 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

Determination of Gold in Ore Samples by Flame Atomic Absorption Spectrometry of Sealed Dissolution after Adsorption using Polyurethane Foam

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of mineral analysis. After the samples were roasted and digested in 50% aqua regia by sealed dissolution,the gold in ore samples were adsorbed by 0.25g polyurethane foam during the oscillating, the polyurethane foam was ...
Kun Shao   +3 more
doaj   +1 more source

The Influence of Temperature Impact on the Strength of Adhesion of Polyurethane Glue-foam with Masonry Products [PDF]

open access: yesE3S Web of Conferences, 2020
The use of masonry on glued polyurethane foam joints can significantly increase labor productivity in the construction of stone buildings. One of the factors restraining the introduction of polyurethane foam adhesive into the practice of construction of ...
Derkach Valery
doaj   +1 more source

Application of Carbon-loaded Polyurethane Foam Produced by Ethanol Media in Determination of Gold in Geological Samples

open access: yesYankuang ceshi, 2018
BACKGROUND Compared with unloaded polyurethane foam, carbon-loaded polyurethane foam can effectively increase the adsorption capacity of gold, but the existing preparation method of carbon-loaded polyurethane foam is not efficient.
MA Yi-fei   +4 more
doaj   +1 more source

Application of Thin Polyurethane Plastering Thermal Insulation System in Building Energy Conservation

open access: yesChemical Engineering Transactions, 2018
In this paper, through the study of the principle and method of the preparation of rigid foam polyurethane foam, the foaming process was optimized and the best formula was obtained. The effect of thin plastering on the thermal stability of the composites
Jianren Zhi
doaj   +1 more source

Rigid Polyurethane Foams Modified with Biochar [PDF]

open access: yesMaterials, 2021
This paper presents results of research on the preparation of biochar-modified rigid polyurethane foams that could be successfully used as thermal insulation materials. The biochar was introduced into polyurethane systems in an amount of up to 20 wt.%.
Katarzyna Uram   +3 more
openaire   +3 more sources

Polyurethane foam for skin graft fixation in clinical-relevant ovine burn wound model for wound repair and regeneration research

open access: yesRegenerative Therapy, 2020
The availability of clinical-relevant large animal models for research in wound healing study is limited. Although a few reports described the wound dressing fixation method using polyurethane foam in patients, no animal studies were conducted to ...
Yosuke Niimi   +4 more
doaj   +1 more source

Effect of reaction parameters on Arsenic removal capacity from aqueous solutions using modified magnetic PU foam nanocomposite

open access: yesResults in Materials, 2023
A novel Fe3O4 -polyurethane (PU) foam nanocomposite was fabricated and utilized to study the removal of heavy metal ions from water. Magnetite (Fe3O4) nanoparticles with (3-Aminopropyl) triethoxysilane (APTES) was synthesized and incorporated into ...
Sahebeh Tamaddoni Moghaddam   +3 more
doaj   +1 more source

Three dimensional modeling method of MIMICS adjacent mask spherical open cell aluminum foam-polyurethane composites based on DICOM data

open access: yesChina Foundry, 2020
The complexity and irregularity of the internal structure of aluminum foam and the particularity of the fabricating method make it difficult to establish a three-dimensional model that can accurately reflect the internal structure of aluminum foam ...
Ming-si Qi, Wei Zhang, Guang-ming Ren
doaj   +1 more source

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