Formaldehyde volatilization time_What is the formaldehyde release cycle

After modern house decoration, the first thing to do is to measure formaldehyde. If the chemical gas formaldehyde reaches a certain level, it will cause harm to the human body. In addition, many building materials contain formaldehyde. The time for formaldehyde to volatilize in different environments is also different. If the temperature and humidity are more suitable for formaldehyde, its volatilization time can be extended. So what is the formaldehyde volatilization time_formaldehyde release cycle?

First, the formaldehyde volatilization time_what is the formaldehyde release cycle? The formaldehyde release cycle is 3-15 years. Generally speaking, the formaldehyde emission of boards is calculated from the time the boards are produced. When the external formaldehyde release channel is normal, the free formaldehyde and bound formaldehyde in the board itself will evaporate quickly. The rate of formaldehyde volatilization depends on the size of the channel, the temperature and humidity of the external environment, and the concentration of external VOCs. In this process, as time goes by, the aging of the synthetic fat of formaldehyde in the board causes its base bonds to break, forming new channels, and releasing the originally blocked formaldehyde again. At the same time, the bound formaldehyde attached to the lipid base bonds will also be released again. Under the same conditions, this is the reason why the formaldehyde release rate is unstable.

Second, this is also the real reason why the formaldehyde exceeding standard rate in new houses detected in winter is not as high as that in summer. (Except in the northern region, in winter, the heating is turned on in the northern region, the houses are closed, and the formaldehyde will be in an explosive period)

Formaldehyde volatilization time_What is the formaldehyde release cycle? The formaldehyde release period "3-15 years" that we usually refer to is the time it takes for the formaldehyde in the board to be released. The fastest release period is 3 years, and the latest can be as long as 15 years. So this is a range value and it does not necessarily take 15 years to be completely released. The formaldehyde in textile decorations is completely released very quickly and can be washed with water. Therefore, the length of the formaldehyde release cycle is mainly determined by the furniture production process, edging technology, and new house decoration techniques. Based on the current popular furniture production costs and processes, the continuous release time of formaldehyde at room temperature is between 3 and 15 years.