Injection Molding of Engineering Plastics
Final rept. 1986-1991
STEVENS INST OF TECH HOBOKEN NJ
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This final report summarizes the findings of a study in injection molding of engineering plastics. Two engineering plastic resins, i.e. unmodified grades of a polyether imide and a poly 2.6-dimethyl-1,4-phenylene ether were thoroughly characterized. The characterization included rheology, thermal properties and P-V-T behavior. The data were employed to predict various microstructural distributions including density, residual stress and birefringence distributions in compression and injection molded specimens of these two engineering plastics. The detailed microstructural distributions were also studied experimentally upon processing the two engineering plastics, employing instrumented machines and industrial practices. The experimental findings were elucidated under the light of the numerical simulation results. Overall, this study should furnish a first order understanding of the microstructure development in articles injection molded from amorphous engineering plastic resins.
- Manufacturing and Industrial Engineering and Control of Production Systems