Material Analysis
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Poor micro-foaming effect of products
Problem Phenomenon
The cells of micro-foamed products are large and uneven
Cause Analysis
Blowing agent dispersion is uneven; gas solubility in the melt is insufficient; the pressure release rate does not match the foaming temperature
Solution
Optimize pre-dispersion of the blowing agent in the blend; increase melt pressure to increase gas solubility; precisely control foaming temperature
Key Takeaway
Micro-foaming quality depends on precise control of nucleation and cell growth
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