Material Analysis
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Uneven dispersion of carbon fiber in resin
Problem Phenomenon
Chopped carbon fibers agglomerate in the resin and cannot be dispersed
Cause Analysis
Carbon fiber has a large specific surface area and easily agglomerates electrostatically; fibers physically entangle with each other; mixing shear force is insufficient to open the agglomerates
Solution
Use coupling agents and surface treatment to reduce inter-fiber friction; extend mixing time and provide sufficient shear force; consider using carbon fiber masterbatch
Key Takeaway
Good dispersion of carbon fiber is the prerequisite for fully exerting the reinforcement effect
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