Application of Polyurethane Rigid Foam in Noise Control

Juyitang Editor ( Wechat ID: pu138com) Wechat, grasp polyurethane dynamics and grasp the future!

Core tip: Glass fiber reinforced polyurethane rigid foam and other materials are used in the interior of the car roof, which can not only improve the assembly efficiency of the car, but also meet the requirements for sound absorption, making the car more beautiful in appearance and more comfortable to ride .

Glass fiber reinforced polyurethane rigid foam and other materials are used in the interior of the car roof, which can not only improve the assembly efficiency of the car, but also meet the requirements of sound absorption, making the car more beautiful in appearance and more comfortable to ride.

On the other hand, people are actively applying polyurethane acoustic materials to the sound insulation and noise reduction of armored vehicles and ambulances. The research results show that composite panels made of polyurethane foam can effectively reduce the car noise.

Polyurethane sound-absorbing foam materials are also used in Tangshan Vehicle Factory of the Ministry of Railways, Shandong Zhangqiu Blower Factory and Longkou Coal Mine.

In addition, the composite board made of polyurethane foam and pvc foam covered with plastic film under vacuum, or the sound insulation board made of reticulated polyurethane foam, has better sound insulation effect than other materials. Polyurethane acoustic materials can also be used to make noise-proof sleeves, etc.