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Soy Bean Based Foam Wall Technology

 

Description Of Wall

During September 2004, an innovative bio-based spray-in-place foam insulation was tested by ORNL BTC. Ultra-light weight, two-part soybean oil-based polyurethane was utilized to insulated conventional 2x4 wood-framed wall (studs were installed at 16-in.o.c.). It was an open-cell, semi-rigid foam that in one step provided a thermal insulation for traditionally-framed wall. During the Hot box testing, the Soybean wall was not covered by any finish materials.

Thermal conductivity of the soybean oil-based polyurethane insulation was measured at the ORNL Material Properties Laboratory using ASTM C518 method at mean temperature - 75°F. Thermal conductivities for the soybean foam are presented in the table below.

Specimen

Thickness, in

Density, lb/ft 3

Thermal Conductivity,

Btu-in/h-ft²-°F

1

1.59

0.484

0.298

1

1.35

0.547

0.293

 

 
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