Car sound insulation cotton and sound absorption cotton in the end how to choose

Release time:

2023-12-14

Sound absorption cotton and sound insulation cotton are very good decorative materials, so, what are the differences between sound absorption cotton and sound insulation cotton?

The difference between sound absorbing cotton and sound insulation cotton

The sound-absorbing cotton has a silencing effect, that is to say, the sound energy is converted into heat energy. The sound insulation material does block the transmission of sound, but it is easy to cause sound energy reflection.

Good sound-absorbing and sound-insulating materials, such as our main purpose is sound insulation, so to put it bluntly is to "eliminate" the noise ". For example, "gradient sound-absorbing cotton" is a porous material with laminated step density. The holes inside are connected. After the sound enters, it frictions with the hole wall of the material, converts energy, and finally achieves the purpose of attenuating sound energy.

Stick the sound insulation cotton directly on the glass wall. If you choose the right material, it should have a certain effect. There are two kinds of situations without effect: one is that the material used has no effect, which is related to the material and structure. If you use gradient sound-absorbing cotton, you will find that it can produce effect;

Another case, that is, the formal installation of sound insulation cotton should be filled in the keel and then sealed with a plate. That is to say, only in this way can the installation effect be brought into full play. The direct pasting method can take effect if good materials such as gradient sound absorption cotton are used. Of course, the sound insulation effect is still different from the keel installation method. Of course, you can also use high-resistance sound insulation felt, this material its sound insulation effect is also quite significant.

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