Injection Molding
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PPS '2079851475616104452 processing temperature control
Problem Phenomenon
PPS processing temperature range 290-350°C is narrow; improper temperature causes degradation or poor filling.
Cause Analysis
PPS melting temperature is about 280°C and requires processing above 290°C, but above 350°C oxidative crosslinking and degradation occur.
Solution
Precisely control barrel temperature 290-330°C; avoid excessive temperature and residence time.
Key Takeaway
PPS heat-resistant plastic itself also has a limited processing temperature window.
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