The Development of a Non-Fluorocarbon-Based Extruded Polystyrene Foam Which Contains a Halogen-Free Blowing Agent

2004 ◽  
Vol 77 (4) ◽  
pp. 599-605 ◽  
Author(s):  
Youichi Ohara ◽  
Kenkichi Tanaka ◽  
Takahiro Hayashi ◽  
Haruo Tomita ◽  
Shigeru Motani
Keyword(s):  
Polystyrene Foam ◽  
Blowing Agent ◽  
Halogen Free ◽  
Extruded Polystyrene Foam

Effects of surfactants on mechanical and thermal properties of soy-based polyurethane foams

2020 ◽  
Vol 56 (6) ◽  
pp. 611-629
Author(s):  
Gurjot S Dhaliwal ◽  
Sudharshan Anandan ◽  
Mousumi Bose ◽  
K Chandrashekhara ◽  
Paul Nam
Keyword(s):  
Thermal Properties ◽  
Mineral Wool ◽  
Polyurethane Foams ◽  
Mechanical And Thermal Properties ◽  
Polystyrene Foam ◽  
Blowing Agent ◽  
Fold Reduction ◽  
High Insulation ◽  
Extruded Polystyrene Foam ◽  
Scanning Electron

Polyurethane foams are widely used for insulation applications due to their high insulation properties as compared to conventional materials such as extruded polystyrene foam and mineral wool. In this study, soy-based polyurethane foams were prepared using five different surfactants while keeping other components such as soy-based polyol, diisocyanate, catalyst, and blowing agent (water) constant. Prepared samples were tested for mechanical and thermal properties to evaluate the effect of different surfactants used in varying quantities. The morphology of the foam samples was observed using a scanning electron microscope. Seventeen fold reduction in the cell size was observed with an increase in the amount of surfactant from 0.5 to 5.0 g. Samples with higher amounts of surfactant also exhibited a higher number of closed cells. Better thermal insulation was observed for samples with 2.0 and 5.0 g of surfactant as compared to samples with 0.5 g of surfactant. A similar trend was observed in the mechanical strength, moisture absorbance, and density of the fabricated foam samples.

scholarly journals Experimental study on flame spread over discrete extruded polystyrene foam with different fuel coverage rates

2020 ◽  
Vol 17 ◽  
pp. 100577 ◽  
Author(s):  
Zhe Wang ◽  
Weimin Liang ◽  
Minglun Cai ◽  
Yanhua Tang ◽  
Song Li ◽  
...  
Keyword(s):  
Experimental Study ◽  
Flame Spread ◽  
Polystyrene Foam ◽  
Coverage Rates ◽  
Extruded Polystyrene Foam

scholarly journals Optimization of plastic foam composition for insulation systems

2019 ◽  
Vol 91 ◽  
pp. 02017 ◽  
Author(s):  
Anton Pilipenko ◽  
Ekaterina Bobrova ◽  
Alexey Zhukov
Keyword(s):  
Heat Loss ◽  
Experimental Studies ◽  
Point Of View ◽  
Structural Safety ◽  
Vapor Permeability ◽  
Building Structures ◽  
Polystyrene Foam ◽  
Building Systems ◽  
Insulation Systems ◽  
Extruded Polystyrene Foam

Construction insulation systems should provide solutions to the problems of creation of suitable conditions of load-bearing construction elements and whole construction, reduction of heat loss through thermal insulation layer, and creation of living comfort in buildings. The article presents the results of experimental studies, the purpose of which is to optimize the composition of extruded polystyrene foam, the formation of methods for selecting its composition and the development of systems for the use of products based on extruded polystyrene foam. Main provisions of the method of analytical optimization, which allows significantly reducing the material and time costs for processing the experimental results, are also provided. Aspects of the implementation of building systems using extruded polystyrene foam both from the point of view of minimizing heat loss through contact areas and the degree of influence of vapor permeability of building structures on the temperature and humidity conditions of premises are studied. Mandatory criteria for construction with the use of building systems are safety conditions, including both structural safety (including maintenance-free cycle) and fire safety.

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