Application of Printed Acoustic Panel and sound insulation cotton

Application of Printed Acoustic Panel and sound insulation cotton
Nowadays, the prosperous urban area is no longer the first choice for people to buy a house. In addition to the high housing prices, there is also a very important reason for being too noisy.
We all know that the flow of people and vehicles in the prosperous urban area is very large, and there are many entertainment venues, subways and bus stations around, so the noise generated by the outside world is very loud. Generally, people living in prosperous areas if they are not there.
It is definitely impossible to live a normal life if sound insulation measures are taken at home.
The most commonly used sound insulation treatment in daily life is Printed Acoustic Panel and sound insulation cotton. So, which of the two is better?

Printed Acoustic Panel: general objects have a sound insulation effect, but we call printing boards with average sound insulation (a piece of infinite material between the sound source and the measured point in an infinite space) exceeding 30dB
Acoustic panels.
Printed Acoustic Panels are generally high-density materials.

Soundproof cotton: Another function of soundproof cotton is heat insulation. It can reduce the heat transmitted to the surface of the hood when the engine is running. Vehicles equipped with soundproof cotton on the hood will hardly produce white fog when it rains.
In cloudy and rainy days and winter, due to the large difference between the outside temperature and the engine temperature, combined with the combined effects of rain on the hood, it will accelerate the oxidation of the paint surface.
Insulation cotton can protect the paint surface of the hood to a certain extent.

The use of multiple layers of sound insulation materials has better sound insulation effect than single layers.
Sound insulation cotton is a vivid name, which actually refers to sound-absorbing materials.
Common polyester fiber thermal insulation cotton is the most used sound-absorbing material in engineering, and 5CM thick plates are generally used in partition walls.
Due to the different supply and marketing channels, there are pricing based on weight, and pricing based on volume, which will not exceed 10 yuan per square meter.
Partition wall method: use 100 series partition wall keel, seal twice with paper-faced gypsum board on one side (after the first sealing, use putty for caulking), uniformly glue the sound insulation cotton into one surface, and leave the other side empty
After the cavity, the partition wall is completed, other decorative decorations will be made.

Note that the sound insulation cotton should not be placed or filled at will, as this will affect the sound insulation effect.