Abstract
Studies of the structure-property relationship of polybutene-1 films containing needle crystals (shishes) without any epitaxial overgrowth have been carried out with the help of transmission electron microscopy, differential scanning calorimetry and density and mechanical measurements. The lengths of the needle crystals have been varied by changing the preparation conditions. The mechanical responses of these materials are found to be dependent mainly on the needle length (length to diameter ratios), and can be explained with reference to the fibre-reinforced composite theories for discontinuous fibres. The studies indicate that the properties of the material can be described in terms of a composite of hard needle crystals contained in a soft amorphous matrix in which the polymer molecules build up an interconnecting molecular network structure.
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Gohil, R.M., Petermann, J. Application of discontinuous fibre-reinforced composite theory to polybutene-1 films containing needle crystals. J Mater Sci 18, 1719–1724 (1983). https://doi.org/10.1007/BF00542067
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DOI: https://doi.org/10.1007/BF00542067