Material Analysis
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PI composite resin impregnation
Fenómeno do problema
When preparing PI prepreg, the resin insufficiently impregnates the fibers
Análise das causas
PI precursor solution viscosity is high and does not easily penetrate fiber bundles; the fiber surface treatment is not compatible with the PI precursor
Solução
Reduce the viscosity and concentration of the precursor solution; select a fiber sizing agent compatible with PI; use solution impregnation or hot melt method
Conclusão principal
The quality of PI composites starts with the impregnation quality of the prepreg
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