Comparative study of chemical and physical foaming methods for injection-molded thermoplastic polyurethane
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Cellular Plastics"
DOI: 10.1177/0021955x16652107
Abstract: Thermoplastic polyurethane is one of the most versatile thermoplastic materials being used in a myriad of industrial and commercial applications. Thermoplastic polyurethane foams are finding new applications in various industries including the furniture, automotive, sportswear,… read more here.
Keywords: injection molded; thermoplastic polyurethane; blowing agents;
In situ synthesis of CO2 adducts of modified polyethylenimines in polyether polyols for polyurethane foaming
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Cellular Plastics"
DOI: 10.1177/0021955x20987153
Abstract: CO2 adducts from hydrophobically-modified polyethylenimines (PEIs) in powder form are newly-developed environment-friendly blowing agents for polyurethanes (PUs). However, they are difficult to disperse into foaming systems that usually contain polyether polyols as the PU soft… read more here.
Keywords: modified polyethylenimines; co2; blowing agents; co2 adducts ... See more keywords
Morphological and mechanical properties of foamed thick-walled Wood-Plastic-Composite structures
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Cellular Plastics"
DOI: 10.1177/0021955x231161175
Abstract: Microcellular wood fiber reinforced polymers offer the possibility to reduce the use of fossil raw materials. In particular, thick-walled structures with thicknesses greater than 6 mm offer a high potential for weight savings. This study… read more here.
Keywords: chemical blowing; blowing agents; mechanical properties; wood ... See more keywords
Polyurethane foams co-blown by water and alkylated polyethylenimine-CO2 adducts: An additive or antagonistic effect?
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Cellular Plastics"
DOI: 10.1177/0021955x231177805
Abstract: Recently developed CO2 adducts of alkylated polyethylenimines (PEIs) can replace traditional, ozone-depleting, and/or global warming halogen-containing blowing agents of polyurethanes (PUs). Meanwhile, water is the most common chemical blowing agent that is cheap and also… read more here.
Keywords: foams blown; effect; co2 adducts; water ... See more keywords
The influence of blowing agents type on foaming process and properties of rigid polyurethane foams
Sign Up to like & getrecommendations! Published in 2018 at "Polimery"
DOI: 10.14314/polimery.2018.10.2
Abstract: Rigid polyurethane foams (RPF) were synthesized with the use different type of blowing agents (methylal, isopentane, cyclopentane, mixture of isopentane and cyclopentane, carbon dioxide). The effects of blowing agent type on the foaming process, cellular… read more here.
Keywords: foaming process; blowing agents; rigid polyurethane; polyurethane ... See more keywords
Behavior Characteristics and Thermal Energy Absorption Mechanism of Physical Blowing Agents in Polyurethane Foaming Process
Sign Up to like & getrecommendations! Published in 2023 at "Polymers"
DOI: 10.3390/polym15102285
Abstract: Polyurethane rigid foam is a widely used insulation material, and the behavior characteristics and heat absorption performance of the blowing agent used in the foaming process are key factors that affect the molding performance of… read more here.
Keywords: blowing; blowing agents; physical blowing; blowing agent ... See more keywords
Limits of Performance of Polyurethane Blowing Agents
Sign Up to like & getrecommendations! Published in 2023 at "Sustainability"
DOI: 10.3390/su15086737
Abstract: A MATLAB program was developed to simulate urethane-forming reactions by solving over a dozen differential equations, energy balance, mass balance, and constitutive equations simultaneously. The simulation program was developed for half a decade to simulate… read more here.
Keywords: limits performance; chemical blowing; blowing agents; performance polyurethane ... See more keywords