Penetration of Two Organic Liquids Into Hardwoods


  • Howard N. Rosen


<i>Liriodendron tulipifem</i>, <i>Quercus shumardii</i>, <i>Juglans nigra</i>, swelling, fiber saturation point, bound liquid, free liquid, alcohols


A theory previously described for determining the nonpressure or natural penetration of water into hardwoods was also shown to be valid for two organic liquids. The theory was verified by data from a swelling cell, which continuously and simultaneously measured the uptake of t-amylol and n-propanol with time in wood samples as well as the resultant swelling. The initial stages of bound liquid and free liquid penetration were shown to be linear when plotted against the square root of time. The maximum swelling in n-propanol was lower in red oak and black walnut than in yellow-poplar and ranged from 24 to 60% of the maximum swelling for the same species in water.


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