Results 11 to 20 of about 3,694 (226)

Study of Aerogel-Modified Recycled Polyurethane Nanocomposites

Nanomaterials, 2023
In this study, a liquid regenerated polyether polyol was obtained after the degradation of waste PU foam by the two-component decrosslinker agents ethylene glycol and ethanolamine.
Xiaohua Gu, Shangwen Zhu, Siwen Liu, Yan Liu   +3 more
doaj   +1 more source

Innovation in lifetime prediction of rigid polyurethane foam through random vibration and comparison with conventional methods

Polymer Testing, 2023
As the filling material for the new nuclear fuel transport cask, the rigid polyurethane foam plays an important role in the safe transportation of the nuclear fuel assemblies, and therefore its reliability deserves special attention. Thermal analysis and
Ming-Kun Shuai, Yi Gong, Fan Cheng, Jian Zhang, Rong-Bo Li, Jie Pan, Na Li, Jian-Feng Xu, Xiao-Qiang Liu, Xiao-Lei Yang, Xue-Lian Xu, Chao-Chao Sun, Hong-Fu Feng, You-Xue Su   +13 more
doaj   +1 more source

Comparative investigation of the influence of kaolin and dolomite on the properties of polyurethane foam

Manufacturing Review, 2021
This work investigates the influence of kaolin and dolomite on the properties of polyurethane foam. The selected fillers were pulverized and sieved to obtained
Omotoyinbo Joseph Ajibade, Oladele Isiaka Oluwole, Jabar Jamiu Mosebolatan, Borode Joseph Olatunde, Alaneme Kenneth Kanayo, Akinwekomi Akeem Damilola, Oke Samuel Ranti, Omotosho Taiwo Fisayo, Saliu Lawrence Ojo   +8 more
doaj   +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, Chun-Han Ko, Fang-Chih Chang, San-Hsien Tu, Cheng-Jung Lin   +4 more
doaj   +2 more sources

Modyfication of the Rigid Polyurethane-Polyisocyanurate Foams [PDF]

Journal of Chemistry, 2006
The effect of polyethylene glycol 1500 on physicomechanical properties of rigid polyurethane-polyisocyanurate (PUR-PIR) foams has been studied. It was found that application of polyethylene glycol 1500 for synthesis of foams in amount from 0% to 20%w/whad an effect on reduction of brittleness and softening point, while the greater the increase in ...
Bogusław Czupryński, Joanna Liszkowska, Joanna Paciorek-Sadowska   +2 more
openaire   +3 more sources

Evaluating compressive properties and morphology of expandable polyurethane foam for use in a synthetic paediatric spine

Journal of Materials Research and Technology, 2020
An expandable rigid PU foam can turns into complex shapes, with a shell like structure on the outside and honeycomb structure on the inside, which can be easily shaped to a vertebra form.
Nor Amalina Muhayudin, Khairul Salleh Basaruddin, Fiona McEvoy, Anthony Tansey   +3 more
doaj   +1 more source

Measurement of thermal expansions of closed-cell polyurethane rigid foams at cryogenic temperatures with an extensometer technique

AIP Advances, 2021
The database of thermal expansion behavior of closed-cell polyurethane rigid foam at very low temperatures is required for designing and manufacturing thermal insulation components of various cryogenic systems.
Hongyu Dong, Hengcheng Zhang, Rongjin Huang, Zhixiong Wu, Chuanjun Huang, Laifeng Li   +5 more
doaj   +1 more source

Experimental and Numerical Investigation of Sound Absorption Characteristics of Rebonded Polyurethane Foam

Applied Sciences, 2022
Polyurethane foam (PUF) is an exceptionally adaptable product that has a variety of applications—it can be found almost everywhere. Due to such high utilization, the amount of polyurethane foam waste generated each year is growing over time.
Milica Jovanoska Mitrevska, Viktor Mickovski, Todorka Samardzioska, Gino Iannace   +3 more
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Analysis of Fire Simulation on Polyurethane Foam Using FDS in a University Meeting Room

Journal of Applied Engineering and Technological Science, 2023
The polyurethane foam material is commonly used and marketed in two forms, namely flexible and rigid. Flexible foam is used as a cushion, with various applications for commercial products such as chair support. Therefore, this study aims to describe the
Pratomo Setyadi, Dewi Muflihah
doaj   +1 more source

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

Chemical 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