Letter | Published:

Preparation of Thin Sections of Synthetic Resins and Wood-Resin Composites, and a New Macerating Method for Wood

Nature volume 155, page 51 (13 January 1945) | Download Citation

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Abstract

VARIOUS softening methods have been used in preparing sections of hard material for microscopic examination; but none of these has been found effective for so-called 'improved wood' made up of wood veneers impregnated with phenol-formaldehyde or other resin and compressed and bonded at a high temperature. The microscopic examination of synthetic resins and materials incorporating such resins is of value in revealing the nature and distribution of fillers, colouring matter and reinforcements, and other features of the internal structure. It has also been found useful as a means of identifying the different kinds of resin used as adhesives in plywood1. In order to prepare microscope sections of the harder forms of these materials, some investigators have had recourse to the petrologists' method of grinding and polishing thin sections for examination by transmitted light, and the metallurgists' method of examining a polished surface by reflected light.

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References

  1. 1.

    , and , J. Soc. Chem. Ind., 62, 11 (1943).

  2. 2.

    , Proc. Papermkrs' Assoc. G.B.I., Tech. Sect., 24, 347 (1943).

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Affiliations

  1. Forest Products Research Laboratory, Princes Risborough, Bucks. Dec. 4.

    • G. L. FRANKLIN

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https://doi.org/10.1038/155051a0

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