Injection Molding
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Gas produced by decomposition during PAR '2079851475616104452
Problem Phenomenon
The material decomposes during processing, producing odorous gas.
Cause Analysis
The processing temperature is too high >320°C; the carbonate bonds in PAR decompose to produce low molecules such as CO₂ and phenol.
Solution
Strict temperature supervision not exceeding 320°C; minimize the barrel residence time; forced exhaust ventilation.
Key Takeaway
PAR decomposition gas needs environmental control.
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