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BioBuild Challenge

Lignin Foam

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  • #2534

    D Gaker
    Member
    @damiang

    Polyurethane foam made from kraft lignin shows substantial potential as insulation.  Current research indicates very good thermal properties as well as dimensional stability.  This foam should be used in structural insulated panels as well as in acoustic insulation between rooms.

    Because kraft lignin is primarily an industrial byproduct, this application should be economically competitive with SIPs of more conventional construction.

    [starrater tpl=44 size=’24’]

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  • #2581

    D Gaker
    Member
    @damiang

    Here’s a study I found which has the conclusion that lignin polyol can be used to create a polyurethane “foam with better mechanical properties than its commercial counterpart.”

     

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    #2773

    D Gaker
    Member
    @damiang

    The product I am proposing is a rigid foam board insulation using lignin foam.  It is 2″ in thickness and uses card stock to provide tensile structural integrity much like the flanges of an I-beam.

    This board can be used on exterior walls as stand-alone insulation or in combination or layers to provide additional thermal insulation.  It can be used on interior walls to reduce acoustic pollution from other rooms and to reduce reverberation.  It can be used as a continuous layer or it can be cut to fit between structural members or around utilities.

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