Production & Quality
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Excessive porosity in carbon fiber composite materials
Problem Phenomenon
The internal porosity of the product is >2% and performance does not meet standards
Cause Analysis
The resin does not fully wet the fibers and air is entrained; volatiles are not discharged during curing; molding pressure is insufficient
Solution
Optimize the resin wetting process (such as vacuum-assisted RTM); extend vacuuming time and pressure; add defoamers to the resin system
Key Takeaway
Porosity is the core indicator of carbon fiber composite quality control
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