Material Analysis
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PI composite resin impregnation
Fenómeno del problema
When preparing PI prepreg, the resin insufficiently impregnates the fibers
Análisis de la causa
PI precursor solution viscosity is high and does not easily penetrate fiber bundles; the fiber surface treatment is not compatible with the PI precursor
Solución
Reduce the viscosity and concentration of the precursor solution; select a fiber sizing agent compatible with PI; use solution impregnation or hot melt method
Conclusión clave
The quality of PI composites starts with the impregnation quality of the prepreg
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