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聚氨酯硬泡 (PU)在汽车中应用广泛。客车制造厂采用聚氨酯硬泡的初衷是认为这种材料具有隔热、吸声、隔声的功能。但通过实验和理论分析 ,结果表明聚氨酯硬泡具有良好的隔热性能 ,但吸声和隔声性能均很差
Polyurethane foam (PU) in the car is widely used. Passenger car factory polyurethane foam original intention is that this material with thermal insulation, sound absorption, sound insulation function. However, through experimental and theoretical analysis, the results show that polyurethane foam has good thermal insulation properties, but sound absorption and sound insulation performance are poor