1944-01-01

CHARACTERISTICS of PLASTICS as ENGINEERING MATERIALS 440149

LOW density, ease of fabrication, low thermal conductivity, available transparency, and low unit cost for mass-production items are characteristics of organic plastic materials that make them attractive to the designer and the engineer.
Before full use of plastics can be made, however, it is necessary for both the designer and the engineer to have an extensive practical tabulation of their chemical and physical characteristics. Today's cut-and-try methods used with plastics must give way to theoretical design considerations.
The authors of this paper have outlined those things that should be considered in every application with plastics, illustrating their point with pertinent data on the thermoplastic resin known as Plexiglas.

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