Noise pollution is an increasingly serious problem today, not only affecting mood and hearing, but also causing high blood pressure, heart disease, memory loss, difficulty concentrating, and other mental syndromes.

Research shows that the human hearing can tolerate a maximum volume of 30 decibels. When the continuous indoor noise pollution exceeds 30 decibels, normal sleep will be disturbed. However, continuous living in a noise environment above 70 decibels will affect human hearing and physical health. will be affected.

In order to improve the noise problem, many people have installed soundproof glass in their homes, but a small number of people are skeptical about soundproof glass. Will it really be effective? Today let us learn some knowledge about soundproof glass.

1. What is soundproof glass?

 Sound-insulating glass is a glass product that has a certain shielding effect on sound. It is usually a double-layer or multi-layer composite structure of laminated glass. The sound-insulating damping glue (film) in the middle plays a key role in weakening and attenuating sound propagation.

2. Is soundproof glass effective?

（1）Sound insulation effect of hollow soundproof glass

Insulated soundproof glass is mainly composed of two layers of glass. It is surrounded by a high-strength, high-airtight composite adhesive to seal the glass and sealing strips and glass strips. There is 6-9mm of air between the two layers of glass. The layer should be filled with dry gas, and the frame should be filled with desiccant, so as to ensure the dryness of the air in the glass piece. Such hollow soundproof glass has a good sound insulation effect on high-frequency noise, such as voices, school tweeters, etc.However, it has poor sound insulation effect on low-frequency noise such as traffic, such as train sound, airplane sound, engine sound, etc.

（2）Sound insulation effect of vacuum soundproof glass

Vacuum soundproof glass is mainly composed of two layers of flat glass. The thickness of the glass is about 4mm. There will be a space of about 0.28mm between the two layers of flat glass for vacuuming. Compared with insulated soundproof glass, vacuum soundproof glass has better sound insulation performance. This is because the interior of vacuum soundproof glass is almost vacuum, and sound cannot propagate in a vacuum. But after the air is pumped out, the two pieces of flat glass in the vacuum glass are almost connected together. Therefore, when producing vacuum glass, the manufacturer will fill some tiny substances between the glasses as supports, and these supports will also become The medium through which sound is transmitted. Therefore, vacuum soundproof glass cannot completely isolate noise, but can only reduce noise to a certain extent. Generally, vacuum soundproof glass is used in laboratories, recording studios and other places.

（3） Sound insulation effect of laminated soundproof glass

3.Soundproof glass maintenance methods

（1）After the soundproof doors and windows are installed, the protective film on the surface of the profile should be removed in time and wiped clean; otherwise, a large amount of adhesive on the protective film will remain on the profile, making it difficult to clean.

（2） On windy days, casement soundproof windows and sashes should be closed promptly.

（3） Do not hang heavy objects on the handles of casement soundproof windows.

（4） The casement top-hung window can be opened differently by changing the direction of the switch handle. You must know how to operate it to avoid damage.

（5）When sliding soundproof windows are in use, the sliding track should be cleaned frequently to keep it clean so that there are no hard particles on the track surface and grooves.

（6）Plastic steel soundproof doors and windows are equipped with drainage systems in window frames, window sash and other parts to ensure the airtightness and watertightness of soundproof doors and windows. Users must not block the drainage holes of soundproof doors and windows during use to avoid causing drainage of doors and windows performance degrades.