المشاكل والحلول
إجابات عملية على التحديات الشائعة في مواد البلاستيك
Improper raw material temperature (foaming power affected by temperature)
Incorrect catalyst/foaming agent/foam stabilizer ratio
Mismatch between foaming speed and gelation speed
Improper open-cell ratio
Insufficient closed-cell ratio (poor thermal insulation performance)
Poor dimensional stability
Product embrittlement/crumbing
Black core/yellow core (carbonization from excessive heat release)