Material Analysis
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Resin rheology change of carbon fiber prepreg during storage
Problem Phenomenon
The tack and drapability of the prepreg decline after storage
Cause Analysis
The resin undergoes a slow curing reaction (pre-polymerization) at storage temperature; environmental humidity has an influence
Solution
Store at low temperature (-18°C); control the storage period and operating window time; take out from the cold storage and fully warm up before use
Key Takeaway
The storage and operation management of carbon fiber prepreg is crucial to its service performance
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