Material Analysis
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LDPE Film Aging Yellowing
Problem Phenomenon
The film in stock turns yellow and becomes brittle.
Cause Analysis
After the LDPE antioxidant system is exhausted, oxidative degradation occurs; light exposure and high-temperature storage accelerate it.
Solution
①Evaluate the antioxidant system; ②Store away from light in a cool place; ③First in, first out; ④Add anti-UV for outdoor use.
Key Takeaway
Yellowing = oxidative aging; manage storage well.
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