Hard foam absorbing materialIt is a material that can absorb external noise that can be transmitted through it. Its main characteristics are high density, high hardness, and small pores, which can effectively absorb high-frequency and mid low frequency sound waves. Due to its high quality, it is relatively easy to use, does not float up, and does not have an impact on polluting the environment. Below we will provide a detailed introduction to it.
Production process of hard foam absorbing material
Hard foam absorbing material is made of
Polystyrene (EPS) particlesIt is made by foaming, adding additives such as foam inhibitor when foaming. In the production of hard foam absorbing materials, its density should be controlled to ensure its sound absorption performance. Generally speaking, density is calculated based on weight and volume, with the unit being kg/m ³.
Characteristics of hard foam absorbing material:
Hard foam absorbing materials have the following characteristics:
(1) Good sound absorption performance. Hard foam absorbing material has high density and small internal pores, which can effectively absorb part of the energy of high-frequency sound waves and low-frequency sound waves, and has good sound absorption performance. The main applications in architectural acoustic design are sound-absorbing panels, sound-absorbing cotton, etc., which have excellent noise control effects.
(2) Strong durability. Hard foam absorbing material has high density and hardness, excellent pressure resistance, wear resistance, corrosion resistance and aging resistance, long service life, and good sound absorption performance and appearance.
(3) Low cost. The production process of hard foam absorbing material is simple, the raw material price is low, and the service life is long, so the cost is low, and it can be widely used in various construction materials, ships, automobiles and other fields.
Application range of hard foam absorbing materials:
Hard foam absorbing materials can be used in many occasions, such as:
(1) Building sound absorption. In the interior decoration works of buildings, hard foam absorbing materials can be used to reduce indoor noise pollution and improve the comfort of the living environment. This material is usually supplied in the form of boards, and under strict building design standards, sound-absorbing panels, sound-absorbing cotton, etc. can be used.
(2) Automobile manufacturing. Materials that can absorb sound and reduce noise are needed in the car interior to improve the ride comfort. Hard foam absorbing materials are a good choice. This material is supplied in the form of rolls, making it easy to install at different locations inside the car.
(3) Transportation construction. In urban transportation, various modes of transportation such as highways and ferries can generate noise pollution, and it is necessary to use sound-absorbing materials for noise prevention and control. Hard foam wave absorbing materials can be used in the fields of highway sound insulation wallboard, railway transport felt, etc.
(4) Environmentally friendly materials.
Hard foam absorbing materialThe production process is simple, the raw material price is low, the service life is long, and there is almost no pollution to the environment, so it can be promoted and applied as an environmentally friendly material.
In a word, the emergence of hard foam wave absorbing materials has played a huge role in noise control in the fields of construction and transportation. With excellent noise reduction and sound absorption effects, long service life and low cost, it is an excellent material choice.
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