Results 91 to 100 of about 220,614 (308)
Recent advances in fire-retardant rigid polyurethane foam
, 2021 Driven by global environmental concerns, many efforts have been made to develop halogen-free flame retardants for rigid polyurethane foam (RPUF). These environmentally benign flame retardants are mainly divided into (i) reactive, (ii) additive, and (iii)
Zhang, Jianzhong +5 more
core +1 more source
工程科学学报, 2016 Static compression experiments were conducted on hollow aluminum honeycomb (hexagon aperture), polyurethane, and aluminum honeycomb filled with polyurethane.
SONG Yu-huan, XIAO Jiu-mei
doaj +1 more source
Statistical validation in process capability for a high pressure flexible polyurethane foam pouring machine [PDF]
, 2007 Includes bibliographical ...
Ketter, Kevin M.
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Thermal conductivity of gas mixtures for polyurethane rigid foams
, 2009 Mestrado em Engenharia QuímicaA temática do presente trabalho insere-se na procura de agentes expansores mais eficientes para espumas de poliuretano.
Varanda, Catarina Daniela Gonçalves Pinto
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Synthesis of Polyols for the preparation of biodegradable polyurethanes [PDF]
, 2004 Natural oils such as rapeseed oil do not contain the necessary chemical functionality (hydroxyl groups) required for the synthesis of the target biodegradable Polyurethane.
Yagci, Yavuz Emre
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A spectroscopic study of the degradation of polyurethane coil coatings.
, 2012 PhDThe degradation of polyurethane (PU) coil coatings were studied with step scan phase modulation photo-acoustic (SS-PM-PA) FTIR, confocal Raman mapping (CRM) and scanning electron microscopy (SEM). PU coatings were oven cured for 30 seconds to reach
Zhang, Ying
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Thiol-Ene Click Inspired Late-Stage Modification of Long-Chain Polyurethane Dendrimers
, 2021 Compared to the synthesis of polyurethane polymers, construction of well-defined polyurethane dendrimers is challenging due to the high reactivity of externally added or in-situ formed isocyanates leading to the formation of side products.
Richard, Taylor, Dhruba, Poudel
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Cellulose micro/nanocrystals reinforced polyurethane [PDF]
, 2006 Nano- and micron-sized cellulose crystals were prepared and utilized as reinforcements for polyurethane composites. The cellulose crystals obtained from microcrystalline cellulose (MCC) were incorporated into a polar organic solvent, dimethylformamide ...
Bellesi, Natalia E. +4 more
core +1 more source
Advanced Materials, EarlyView.Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz +11 more
wiley +1 more source
Estudo do efeito de sucessivas despolimerizações sobre as propriedades térmicas e mecânicas da espuma rígida de poliuretano [PDF]
, 2012 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de Materiais.Os poliuretanos representam uma classe de polímeros que se destacam devido à sua grande versatilidade ...
Mielke, Solange
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