A Preliminary Study of the Manufacture of Compreg, Impreg, and Normal Laminated Cottonwood (Populus Deltoides) and a Comparison of Their Mechanical and Physical Properties |
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24 hours A. J. Stamm ABSORPTION & SWELLING Bakelite based on dry BENDING & HARDNESS cell wall cell wall structure cific gravity columns compreg and staypak compreg panels cylinder method dry weight equilibrium swelling Forest Products Laboratory Forestry and Conservation Four test specimens full thickness impreg and normal increase mechanical and physical micrometer modulus of elasticity modulus of rupture moisture content normal laminated cottonwood normal laminated material normal laminated panels normal laminated wood normal panels normal specimens PENNSYLVANIA STATE COLLEGE Percent Percent perpendicular to laminations physical properties pounds per square Products Laboratory Mimeograph proportional limit Pyrometer R. M. Seborg reduce the water Resin Treatment Rockwell shear values soaking period solid resin content square inch Stamm and R. M. swelling in thickness temperature of 300°F temperature of 77 temperature to reach test specimens 1/2 treatment of wood water absorption weight of veneers William D Wood Technology